- routing-wg - mailman.ripe.net

ROAs and route objects and filters
by Sandra Murphy 18 May '18

18 May '18

There was a discussion in the routing wg on Monday of converting ROAs into IRR route objects for easy incorporation into the scripts many ISPs have for building filters from IRR data. (I wanted to share this in time for the routing wg meeting Thursday morning, but woke in the teeny hours of Thu night/morning to find that the household Internet connection was down. Diagnosis and switch to backup plan did not get me connected until the opportunity was lost.) The ability to translate ROAs into route objects was recognized early on and is/was incorporated into at least three RPKI implementations that I know of. If I recall correctly, Ruediger Volk was the first to suggest that strategy. Geoff Huston made an interesting observation when this was mentioned in a SIDR working group meeting. There might be an unintended consequence when adding ROA-based-route objects into the filter generation mix, depending on the ISP's filter generation rules. Suppose you had an AS XYZ that created no route objects. Suppose you had an ISP that generated filters from IRR data. When the list of route objects is null, the ISP might generate a deny all filter and it might generate a permit all filter. Suppose then that a prefix holder mistakenly generated a ROA for one of its prefixes for AS XYZ. The list of route objects for AS XYZ is now not null. If the ISP had previously generated a deny all filter, the filter now permits one prefix. Not much damage there. If the ISP had previously generated a permit all filter, the filter now permits just one prefix. That’s a big change. This presently doesn’t happen with RIPE route objects, because the RIPE model is that route objects have to have the permission of both prefix holder and ASN holder. So the mistake would not get registered. [I believe this scenario also works if the IRR rule for route object registration is only that it has the permission of the prefix holder. According to the presentation Monday, that is the case today in some IRRs. A prefix holder might mistakenly register a route object for AS XYZ.] Any ISP that generates a permit all filter when the route object list is null should be aware of this corner case and take appropriate care in their filter generation. I suspect that generating a deny all filter is much more common. —Sandy

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Questionnaire/survey on the ARTEMIS BGP Prefix Hijacking Defense System
by Vasileios Kotronis 15 May '18

15 May '18

Dear Routing WG members/operators, we are researchers from FORTH, Greece. In collaboration with CAIDA, we are working on a BGP hijacking defense system called ARTEMIS ( www.inspire.edu.gr/artemis ). ARTEMIS is funded by RIPE NCC Community Projects 2017 and will be presented during the RIPE76 Routing WG session (Thursday 17 May, 9.00 am). We would really appreciate your feedback on the following related questionnaire/survey about ARTEMIS. Survey URL: https://goo.gl/forms/PETugofb2wspSPez2 We would be happy to answer related questions you might have. Best regards, Vasileios -- ======================================= Vasileios Kotronis Postdoctoral Researcher, member of the INSPIRE Group INSPIRE = INternet Security, Privacy, and Intelligence REsearch Telecommunications and Networks Lab (TNL) Foundation for Research and Technology - Hellas (FORTH) Leoforos Plastira 100, Heraklion 70013, Greece Tel: +302810391241 Office: G-060 e-mail : vkotronis(a)ics.forth.gr url: http://inspire.edu.gr =======================================

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Weekly Routing Table Report
by cscora＠apnic.net 11 May '18

11 May '18

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 12 May, 2018 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 699099 Prefixes after maximum aggregation (per Origin AS): 269055 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 336810 Total ASes present in the Internet Routing Table: 60733 Prefixes per ASN: 11.51 Origin-only ASes present in the Internet Routing Table: 52477 Origin ASes announcing only one prefix: 22967 Transit ASes present in the Internet Routing Table: 8256 Transit-only ASes present in the Internet Routing Table: 269 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 34 Max AS path prepend of ASN ( 30873) 28 Prefixes from unregistered ASNs in the Routing Table: 51 Number of instances of unregistered ASNs: 51 Number of 32-bit ASNs allocated by the RIRs: 22508 Number of 32-bit ASNs visible in the Routing Table: 18184 Prefixes from 32-bit ASNs in the Routing Table: 75633 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 309 Number of addresses announced to Internet: 2859146114 Equivalent to 170 /8s, 107 /16s and 27 /24s Percentage of available address space announced: 77.2 Percentage of allocated address space announced: 77.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 98.9 Total number of prefixes smaller than registry allocations: 233007 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 191299 Total APNIC prefixes after maximum aggregation: 54176 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 190152 Unique aggregates announced from the APNIC address blocks: 77850 APNIC Region origin ASes present in the Internet Routing Table: 8802 APNIC Prefixes per ASN: 21.60 APNIC Region origin ASes announcing only one prefix: 2465 APNIC Region transit ASes present in the Internet Routing Table: 1312 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3762 Number of APNIC addresses announced to Internet: 766828290 Equivalent to 45 /8s, 180 /16s and 223 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-137529 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 208203 Total ARIN prefixes after maximum aggregation: 99080 ARIN Deaggregation factor: 2.10 Prefixes being announced from the ARIN address blocks: 209083 Unique aggregates announced from the ARIN address blocks: 98841 ARIN Region origin ASes present in the Internet Routing Table: 18167 ARIN Prefixes per ASN: 11.51 ARIN Region origin ASes announcing only one prefix: 6708 ARIN Region transit ASes present in the Internet Routing Table: 1799 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2349 Number of ARIN addresses announced to Internet: 1105293088 Equivalent to 65 /8s, 225 /16s and 111 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-397212 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 190744 Total RIPE prefixes after maximum aggregation: 91945 RIPE Deaggregation factor: 2.07 Prefixes being announced from the RIPE address blocks: 186665 Unique aggregates announced from the RIPE address blocks: 111183 RIPE Region origin ASes present in the Internet Routing Table: 25184 RIPE Prefixes per ASN: 7.41 RIPE Region origin ASes announcing only one prefix: 11419 RIPE Region transit ASes present in the Internet Routing Table: 3505 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 6978 Number of RIPE addresses announced to Internet: 715758464 Equivalent to 42 /8s, 169 /16s and 155 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-207259 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 90142 Total LACNIC prefixes after maximum aggregation: 19844 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 91536 Unique aggregates announced from the LACNIC address blocks: 41016 LACNIC Region origin ASes present in the Internet Routing Table: 7139 LACNIC Prefixes per ASN: 12.82 LACNIC Region origin ASes announcing only one prefix: 1995 LACNIC Region transit ASes present in the Internet Routing Table: 1314 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 34 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 4677 Number of LACNIC addresses announced to Internet: 172818912 Equivalent to 10 /8s, 77 /16s and 1 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-268700 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 18658 Total AfriNIC prefixes after maximum aggregation: 3963 AfriNIC Deaggregation factor: 4.71 Prefixes being announced from the AfriNIC address blocks: 21354 Unique aggregates announced from the AfriNIC address blocks: 7653 AfriNIC Region origin ASes present in the Internet Routing Table: 1144 AfriNIC Prefixes per ASN: 18.67 AfriNIC Region origin ASes announcing only one prefix: 379 AfriNIC Region transit ASes present in the Internet Routing Table: 234 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 418 Number of AfriNIC addresses announced to Internet: 97981184 Equivalent to 5 /8s, 215 /16s and 19 /24s AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5397 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4395 419 431 TPG-INTERNET-AP TPG Telecom Limited, AU 4766 2907 11137 792 KIXS-AS-KR Korea Telecom, KR 7552 2835 1154 70 VIETEL-AS-AP Viettel Group, VN 9829 2812 1498 543 BSNL-NIB National Internet Backbone, IN 9394 2622 4922 25 CTTNET China TieTong Telecommunications 45899 2528 1574 160 VNPT-AS-VN VNPT Corp, VN 17974 2294 928 79 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9808 2191 8699 32 CMNET-GD Guangdong Mobile Communication 4755 2101 417 206 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6327 3386 1323 84 SHAW - Shaw Communications Inc., CA 22773 3288 2968 147 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2167 405 109 MEGAPATH5-US - MegaPath Corporation, US 20115 2101 2508 451 CHARTER-NET-HKY-NC - Charter Communicat 16509 2097 4687 662 AMAZON-02 - Amazon.com, Inc., US 11492 2062 241 436 CABLEONE - CABLE ONE, INC., US 30036 1972 339 175 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 209 1967 5070 605 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 16625 1779 873 1267 AKAMAI-AS - Akamai Technologies, Inc., 7018 1714 20216 1257 ATT-INTERNET4 - AT&T Services, Inc., US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 4113 1519 500 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 20940 2646 706 1943 AKAMAI-ASN1, US 8551 2076 378 44 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2043 1876 708 ROSTELECOM-AS, RU 34984 2019 334 485 TELLCOM-AS, TR 9121 1888 1692 19 TTNET, TR 13188 1609 100 43 TRIOLAN, UA 8402 1246 544 14 CORBINA-AS OJSC "Vimpelcom", RU 6849 1241 355 21 UKRTELNET, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 4549 3355 577 Uninet S.A. de C.V., MX 10620 3585 540 251 Telmex Colombia S.A., CO 11830 2647 369 78 Instituto Costarricense de Electricidad 6503 1599 437 53 Axtel, S.A.B. de C.V., MX 7303 1513 1025 187 Telecom Argentina S.A., AR 28573 1034 2252 185 CLARO S.A., BR 3816 1008 505 123 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 971 377 31 Telefonica del Peru S.A.A., PE 11172 927 126 85 Alestra, S. de R.L. de C.V., MX 18881 909 1074 29 TELEFÔNICA BRASIL S.A, BR Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1183 396 45 LINKdotNET-AS, EG 37611 839 107 9 Afrihost, ZA 36903 741 372 137 MT-MPLS, MA 36992 702 1412 42 ETISALAT-MISR, EG 8452 693 1730 18 TE-AS TE-AS, EG 24835 639 850 15 RAYA-AS, EG 37492 453 376 82 ORANGE-, TN 29571 436 68 10 ORANGE-COTE-IVOIRE, CI 15399 363 35 7 WANANCHI-, KE 37342 362 32 1 MOVITEL, MZ Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5397 4192 74 ERX-CERNET-BKB China Education and Rese 8151 4549 3355 577 Uninet S.A. de C.V., MX 7545 4395 419 431 TPG-INTERNET-AP TPG Telecom Limited, AU 12479 4113 1519 500 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 10620 3585 540 251 Telmex Colombia S.A., CO 6327 3386 1323 84 SHAW - Shaw Communications Inc., CA 22773 3288 2968 147 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 4766 2907 11137 792 KIXS-AS-KR Korea Telecom, KR 7552 2835 1154 70 VIETEL-AS-AP Viettel Group, VN Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 8151 4549 3972 Uninet S.A. de C.V., MX 7545 4395 3964 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 3778 3758 ALJAWWALSTC-AS, SA 12479 4113 3613 UNI2-AS, ES 10620 3585 3334 Telmex Colombia S.A., CO 6327 3386 3302 SHAW - Shaw Communications Inc., CA 22773 3288 3141 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 2835 2765 VIETEL-AS-AP Viettel Group, VN 9394 2622 2597 CTTNET China TieTong Telecommunications Corpora 11830 2647 2569 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 230105 UNALLOCATED 38.110.79.0/24 23015 CMC180-TOR-AS - Cambridge Merc 65001 PRIVATE 46.237.40.0/21 13118 ASN-YARTELECOM PJSC Rostelecom 64513 PRIVATE 62.150.101.0/24 9155 QNET Kuwait, KW 65537 DOCUMENT 62.162.120.0/24 6821 MT-AS-OWN bul. Orce Nikolov bb 419333 UNALLOCATED 84.17.91.0/24 41933 IPRAGAZ-AS Istanbul/ TURKEY, T 65024 PRIVATE 87.103.232.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 87.103.233.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 87.103.234.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.78.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.80.0/22 39407 CHITATELECOM-AS, RU Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 100.66.224.0/19 209 CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 27.100.7.0/24 56096 UNKNOWN 36.50.254.0/23 48964 ENTERRA-AS, UA 41.76.136.0/22 37500 -Reserved AS-, ZZ 41.76.136.0/24 37500 -Reserved AS-, ZZ 41.76.138.0/24 37500 -Reserved AS-, ZZ 41.76.139.0/24 37500 -Reserved AS-, ZZ 41.76.140.0/22 37500 -Reserved AS-, ZZ 41.76.140.0/24 37500 -Reserved AS-, ZZ 41.76.141.0/24 37500 -Reserved AS-, ZZ 41.76.142.0/24 37500 -Reserved AS-, ZZ Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:14 /9:11 /10:37 /11:100 /12:288 /13:564 /14:1094 /15:1904 /16:13394 /17:7871 /18:13718 /19:25269 /20:39354 /21:45196 /22:87028 /23:70237 /24:390744 /25:847 /26:650 /27:649 /28:36 /29:20 /30:17 /31:4 /32:53 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3174 3386 SHAW - Shaw Communications Inc., CA 39891 2946 3778 ALJAWWALSTC-AS, SA 12479 2892 4113 UNI2-AS, ES 22773 2544 3288 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2060 2167 MEGAPATH5-US - MegaPath Corporation, US 11830 1995 2647 Instituto Costarricense de Electricidad y Telec 11492 1804 2062 CABLEONE - CABLE ONE, INC., US 30036 1724 1972 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 10620 1604 3585 Telmex Colombia S.A., CO 8551 1538 2076 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1580 2:850 4:19 5:2842 6:65 7:1 8:1125 12:1870 13:186 14:1753 15:28 16:3 17:205 18:65 20:49 21:8 23:2631 24:2219 25:2 27:2362 31:1992 32:88 35:27 36:505 37:2803 38:1457 39:262 40:119 41:3134 42:572 43:1930 44:114 45:4460 46:3061 47:204 49:1317 50:1059 51:307 52:1021 54:369 55:4 56:12 57:42 58:1601 59:991 60:431 61:2166 62:1827 63:1801 64:5039 65:2216 66:4676 67:2417 68:1141 69:3200 70:1148 71:564 72:2126 74:2724 75:413 76:450 77:1529 78:1694 79:1862 80:1514 81:1409 82:1075 83:782 84:1058 85:2037 86:586 87:1316 88:926 89:2324 90:209 91:6351 92:1200 93:2374 94:2401 95:2807 96:659 97:358 98:941 99:133 100:81 101:1282 102:60 103:17680 104:3598 105:239 106:662 107:1874 108:704 109:2692 110:1611 111:1778 112:1276 113:1265 114:1118 115:1633 116:1648 117:1737 118:2194 119:1661 120:978 121:1051 122:2444 123:1802 124:1427 125:1906 128:1022 129:643 130:455 131:1600 132:665 133:194 134:1019 135:225 136:472 137:556 138:1924 139:580 140:393 141:704 142:822 143:978 144:796 145:462 146:1180 147:697 148:1597 149:711 150:724 151:1057 152:768 153:312 154:1066 155:765 156:938 157:792 158:659 159:1739 160:908 161:761 162:2579 163:563 164:1056 165:1584 166:448 167:1407 168:3084 169:808 170:3707 171:434 172:1054 173:1998 174:906 175:769 176:1889 177:3998 178:2450 179:1189 180:2249 181:2189 182:2415 183:1152 184:1001 185:13458 186:3594 187:2391 188:2812 189:2031 190:8078 191:1462 192:9830 193:5915 194:4761 195:3960 196:2538 197:1452 198:5545 199:5903 200:7406 201:5013 202:10412 203:10182 204:4572 205:2896 206:3099 207:3203 208:3992 209:3953 210:4044 211:2111 212:3035 213:2736 214:966 215:60 216:5920 217:2127 218:909 219:628 220:1763 221:985 222:1039 223:1251 End of report

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Draft agenda for RIPE-76
by Paolo Moroni 11 May '18

11 May '18

Please find enclosed the draft agenda for the routing WG at RIPE-76. Please feel free to send comments or suggestions to us at <routing-wg-chairs(a)ripe.net>. Thanks for your participation. Regards, Ignas Bagdonas and Paolo Moroni Routing WG co-chairs ---------------------------------------------------------------------- Thursday, 17 May 09:00 - 10:30 (main room) A. Administrative matters B. Neutralizing BGP Hijacking Within a Minute (V. Kotronis, FORTH-ICS) C. Anti-spoofing: Reboot (A. Azimov, Qrator) D. Measuring Dependency Using AS Hegemony (Emile Aben, RIPE NCC) E. RPKI AS-Cones (Job Snijders, NTT Communications and Massimiliano Stucchi, RIPE NCC) F. Network-Aligned Content Delivery (I. Poese, BENOCS) G. Lightning talk: Measuring routing insecurity (A. Robachevsky, ISOC) Z. AOB

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Report from RIPE NCC::Educa Event on Routing Security
by Mirjam Kuehne 08 May '18

08 May '18

Dear colleagues, On 10 April 2018, we conducted our second online RIPE NCC::Educa event. The topic this time was routing security - a vital issue for anyone who has any stake whatsoever in ensuring that the Internet remains as safe and dependable as possible. Please see a summary on RIPE Labs: https://labs.ripe.net/Members/alvaro_vives/report-from-ripe-ncc-educa-event… Kind regards, Mirjam Kühne RIPE NCC

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Minutes from RIPE-75
by Paolo Moroni 07 May '18

07 May '18

Good morning everybody. The draft minutes of the routing WG from RIPE-75 are now available at https://www.ripe.net/participate/ripe/wg/routing/minutes/routing-working-gro up-minutes-ripe-75 We apologise for the delay in publishing and we thank to the RIPE-NCC for its support. Please comments and corrections - to the WG mailing list <routing-wg(a)ripe.net> - or to the WG co-chairs <routing-wg-chairs(a)ripe.net> - or directly at the next WG meeting at RIPE-76. The draft WG agenda for RIPE-76 follows soon. Regards, Ignas Bagdonas and Paolo Moroni Routing WG co-chairs

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Weekly Routing Table Report
by cscora＠apnic.net 04 May '18

04 May '18

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 05 May, 2018 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 698222 Prefixes after maximum aggregation (per Origin AS): 268829 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 336897 Total ASes present in the Internet Routing Table: 60652 Prefixes per ASN: 11.51 Origin-only ASes present in the Internet Routing Table: 52419 Origin ASes announcing only one prefix: 22938 Transit ASes present in the Internet Routing Table: 8233 Transit-only ASes present in the Internet Routing Table: 267 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 30 Max AS path prepend of ASN ( 30873) 28 Prefixes from unregistered ASNs in the Routing Table: 51 Number of instances of unregistered ASNs: 51 Number of 32-bit ASNs allocated by the RIRs: 22423 Number of 32-bit ASNs visible in the Routing Table: 18107 Prefixes from 32-bit ASNs in the Routing Table: 75449 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 297 Number of addresses announced to Internet: 2858741122 Equivalent to 170 /8s, 100 /16s and 237 /24s Percentage of available address space announced: 77.2 Percentage of allocated address space announced: 77.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 98.9 Total number of prefixes smaller than registry allocations: 232759 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 191019 Total APNIC prefixes after maximum aggregation: 54116 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 189798 Unique aggregates announced from the APNIC address blocks: 77981 APNIC Region origin ASes present in the Internet Routing Table: 8773 APNIC Prefixes per ASN: 21.63 APNIC Region origin ASes announcing only one prefix: 2452 APNIC Region transit ASes present in the Internet Routing Table: 1307 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3737 Number of APNIC addresses announced to Internet: 766870786 Equivalent to 45 /8s, 181 /16s and 133 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-137529 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 207973 Total ARIN prefixes after maximum aggregation: 99038 ARIN Deaggregation factor: 2.10 Prefixes being announced from the ARIN address blocks: 209004 Unique aggregates announced from the ARIN address blocks: 98978 ARIN Region origin ASes present in the Internet Routing Table: 18167 ARIN Prefixes per ASN: 11.50 ARIN Region origin ASes announcing only one prefix: 6717 ARIN Region transit ASes present in the Internet Routing Table: 1794 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2346 Number of ARIN addresses announced to Internet: 1104906784 Equivalent to 65 /8s, 219 /16s and 138 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-397212 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 190494 Total RIPE prefixes after maximum aggregation: 91847 RIPE Deaggregation factor: 2.07 Prefixes being announced from the RIPE address blocks: 186369 Unique aggregates announced from the RIPE address blocks: 111090 RIPE Region origin ASes present in the Internet Routing Table: 25164 RIPE Prefixes per ASN: 7.41 RIPE Region origin ASes announcing only one prefix: 11421 RIPE Region transit ASes present in the Internet Routing Table: 3507 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 6956 Number of RIPE addresses announced to Internet: 715766144 Equivalent to 42 /8s, 169 /16s and 185 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-207259 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 90085 Total LACNIC prefixes after maximum aggregation: 19812 LACNIC Deaggregation factor: 4.55 Prefixes being announced from the LACNIC address blocks: 91488 Unique aggregates announced from the LACNIC address blocks: 40942 LACNIC Region origin ASes present in the Internet Routing Table: 7111 LACNIC Prefixes per ASN: 12.87 LACNIC Region origin ASes announcing only one prefix: 1966 LACNIC Region transit ASes present in the Internet Routing Table: 1306 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 4651 Number of LACNIC addresses announced to Internet: 172820960 Equivalent to 10 /8s, 77 /16s and 9 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-268700 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 18598 Total AfriNIC prefixes after maximum aggregation: 3969 AfriNIC Deaggregation factor: 4.69 Prefixes being announced from the AfriNIC address blocks: 21266 Unique aggregates announced from the AfriNIC address blocks: 7658 AfriNIC Region origin ASes present in the Internet Routing Table: 1142 AfriNIC Prefixes per ASN: 18.62 AfriNIC Region origin ASes announcing only one prefix: 381 AfriNIC Region transit ASes present in the Internet Routing Table: 230 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 417 Number of AfriNIC addresses announced to Internet: 97989120 Equivalent to 5 /8s, 215 /16s and 50 /24s AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5392 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4393 415 430 TPG-INTERNET-AP TPG Telecom Limited, AU 4766 2892 11137 791 KIXS-AS-KR Korea Telecom, KR 7552 2807 1156 71 VIETEL-AS-AP Viettel Group, VN 9829 2761 1498 543 BSNL-NIB National Internet Backbone, IN 9394 2614 4922 26 CTTNET China TieTong Telecommunications 45899 2528 1574 160 VNPT-AS-VN VNPT Corp, VN 17974 2293 928 79 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9808 2190 8699 32 CMNET-GD Guangdong Mobile Communication 4755 2100 417 206 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6327 3389 1323 84 SHAW - Shaw Communications Inc., CA 22773 3289 2968 147 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2168 405 109 MEGAPATH5-US - MegaPath Corporation, US 20115 2099 2503 455 CHARTER-NET-HKY-NC - Charter Communicat 16509 2086 4590 650 AMAZON-02 - Amazon.com, Inc., US 11492 2005 240 450 CABLEONE - CABLE ONE, INC., US 209 1969 5070 607 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 30036 1968 339 177 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 16625 1760 862 1261 AKAMAI-AS - Akamai Technologies, Inc., 7018 1704 20213 1257 ATT-INTERNET4 - AT&T Services, Inc., US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 4116 1519 499 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 20940 2662 719 1958 AKAMAI-ASN1, US 8551 2079 378 44 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2040 1876 707 ROSTELECOM-AS, RU 34984 2018 334 484 TELLCOM-AS, TR 9121 1979 1692 19 TTNET, TR 13188 1609 100 43 TRIOLAN, UA 6849 1241 355 21 UKRTELNET, UA 8402 1237 544 14 CORBINA-AS OJSC "Vimpelcom", RU Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 4445 3387 586 Uninet S.A. de C.V., MX 10620 3591 542 244 Telmex Colombia S.A., CO 11830 2647 369 78 Instituto Costarricense de Electricidad 6503 1612 437 53 Axtel, S.A.B. de C.V., MX 7303 1517 1025 193 Telecom Argentina S.A., AR 28573 1036 2251 184 CLARO S.A., BR 3816 1009 505 123 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 998 377 31 Telefonica del Peru S.A.A., PE 11172 927 126 85 Alestra, S. de R.L. de C.V., MX 18881 909 1074 29 TELEFÔNICA BRASIL S.A, BR Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1185 396 45 LINKdotNET-AS, EG 37611 835 107 9 Afrihost, ZA 36903 741 372 137 MT-MPLS, MA 36992 697 1412 42 ETISALAT-MISR, EG 8452 683 1730 18 TE-AS TE-AS, EG 24835 608 850 15 RAYA-AS, EG 37492 452 376 81 ORANGE-, TN 29571 422 68 10 ORANGE-COTE-IVOIRE, CI 15399 362 35 7 WANANCHI-, KE 37342 361 32 1 MOVITEL, MZ Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5392 4192 74 ERX-CERNET-BKB China Education and Rese 8151 4445 3387 586 Uninet S.A. de C.V., MX 7545 4393 415 430 TPG-INTERNET-AP TPG Telecom Limited, AU 12479 4116 1519 499 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 10620 3591 542 244 Telmex Colombia S.A., CO 6327 3389 1323 84 SHAW - Shaw Communications Inc., CA 22773 3289 2968 147 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 4766 2892 11137 791 KIXS-AS-KR Korea Telecom, KR 7552 2807 1156 71 VIETEL-AS-AP Viettel Group, VN Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7545 4393 3963 TPG-INTERNET-AP TPG Telecom Limited, AU 8151 4445 3859 Uninet S.A. de C.V., MX 39891 3778 3758 ALJAWWALSTC-AS, SA 12479 4116 3617 UNI2-AS, ES 10620 3591 3347 Telmex Colombia S.A., CO 6327 3389 3305 SHAW - Shaw Communications Inc., CA 22773 3289 3142 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 2807 2736 VIETEL-AS-AP Viettel Group, VN 9394 2614 2588 CTTNET China TieTong Telecommunications Corpora 11830 2647 2569 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 230105 UNALLOCATED 38.110.79.0/24 23015 CMC180-TOR-AS - Cambridge Merc 65001 PRIVATE 46.237.40.0/21 13118 ASN-YARTELECOM PJSC Rostelecom 64513 PRIVATE 62.150.101.0/24 9155 QNET Kuwait, KW 65537 DOCUMENT 62.162.120.0/24 6821 MT-AS-OWN bul. Orce Nikolov bb 419333 UNALLOCATED 84.17.91.0/24 41933 IPRAGAZ-AS Istanbul/ TURKEY, T 65024 PRIVATE 87.103.232.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 87.103.233.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 87.103.234.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.78.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.80.0/22 39407 CHITATELECOM-AS, RU Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 100.66.224.0/19 209 CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati 100.127.16.0/23 28885 OMANTEL-NAP-AS OmanTel NAP, OM 100.127.18.0/23 28885 OMANTEL-NAP-AS OmanTel NAP, OM Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 27.100.7.0/24 56096 UNKNOWN 41.76.136.0/22 37500 -Reserved AS-, ZZ 41.76.136.0/24 37500 -Reserved AS-, ZZ 41.76.138.0/24 37500 -Reserved AS-, ZZ 41.76.139.0/24 37500 -Reserved AS-, ZZ 41.76.140.0/22 37500 -Reserved AS-, ZZ 41.76.140.0/24 37500 -Reserved AS-, ZZ 41.76.141.0/24 37500 -Reserved AS-, ZZ 41.76.142.0/24 37500 -Reserved AS-, ZZ 41.76.143.0/24 37500 -Reserved AS-, ZZ Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:14 /9:11 /10:37 /11:100 /12:288 /13:564 /14:1093 /15:1904 /16:13393 /17:7876 /18:13601 /19:25214 /20:39396 /21:45121 /22:86865 /23:70104 /24:390366 /25:848 /26:649 /27:648 /28:36 /29:20 /30:17 /31:4 /32:53 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3178 3389 SHAW - Shaw Communications Inc., CA 39891 2946 3778 ALJAWWALSTC-AS, SA 12479 2860 4116 UNI2-AS, ES 22773 2545 3289 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2061 2168 MEGAPATH5-US - MegaPath Corporation, US 11830 1994 2647 Instituto Costarricense de Electricidad y Telec 11492 1745 2005 CABLEONE - CABLE ONE, INC., US 30036 1720 1968 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 10620 1601 3591 Telmex Colombia S.A., CO 8551 1541 2079 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1581 2:840 4:19 5:2840 6:65 7:1 8:1116 12:1878 13:185 14:1750 15:28 16:3 17:203 18:68 20:49 21:7 23:2650 24:2212 25:2 27:2362 31:1973 32:87 35:27 36:505 37:2769 38:1451 39:262 40:118 41:3142 42:571 43:1944 44:112 45:4422 46:3046 47:204 49:1313 50:1056 51:307 52:1020 54:370 55:3 56:12 57:42 58:1602 59:991 60:433 61:2162 62:1828 63:1795 64:5021 65:2209 66:4666 67:2367 68:1139 69:3191 70:1150 71:563 72:2105 74:2715 75:414 76:437 77:1551 78:1705 79:1851 80:1511 81:1412 82:1077 83:777 84:1055 85:2055 86:589 87:1306 88:939 89:2325 90:206 91:6357 92:1172 93:2368 94:2382 95:2823 96:658 97:357 98:942 99:133 100:80 101:1280 102:47 103:17676 104:3623 105:231 106:659 107:1862 108:713 109:2728 110:1605 111:1773 112:1275 113:1263 114:1115 115:1632 116:1641 117:1729 118:2194 119:1661 120:987 121:1052 122:2450 123:1807 124:1430 125:1895 128:1012 129:649 130:457 131:1588 132:670 133:195 134:1017 135:224 136:469 137:494 138:1924 139:604 140:393 141:695 142:819 143:961 144:794 145:461 146:1190 147:780 148:1593 149:703 150:726 151:1058 152:768 153:312 154:1066 155:765 156:934 157:779 158:657 159:1739 160:933 161:753 162:2586 163:554 164:1049 165:1580 166:439 167:1405 168:3108 169:800 170:3699 171:433 172:1127 173:1995 174:907 175:769 176:1885 177:4053 178:2439 179:1196 180:2251 181:2217 182:2393 183:1149 184:987 185:13459 186:3625 187:2377 188:2781 189:2017 190:8101 191:1473 192:9827 193:5910 194:4767 195:3953 196:2499 197:1454 198:5541 199:5880 200:7387 201:4989 202:10349 203:10172 204:4561 205:2904 206:3104 207:3206 208:3992 209:3948 210:4037 211:2113 212:3009 213:2735 214:952 215:60 216:5924 217:2132 218:909 219:628 220:1752 221:993 222:1032 223:1249 End of report

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Weekly Routing Table Report
by cscora＠apnic.net 27 Apr '18

27 Apr '18

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 28 Apr, 2018 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 696622 Prefixes after maximum aggregation (per Origin AS): 268740 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 335828 Total ASes present in the Internet Routing Table: 60573 Prefixes per ASN: 11.50 Origin-only ASes present in the Internet Routing Table: 52334 Origin ASes announcing only one prefix: 22916 Transit ASes present in the Internet Routing Table: 8239 Transit-only ASes present in the Internet Routing Table: 272 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 32 Max AS path prepend of ASN ( 30873) 28 Prefixes from unregistered ASNs in the Routing Table: 52 Number of instances of unregistered ASNs: 52 Number of 32-bit ASNs allocated by the RIRs: 22370 Number of 32-bit ASNs visible in the Routing Table: 18029 Prefixes from 32-bit ASNs in the Routing Table: 74974 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 274 Number of addresses announced to Internet: 2858007298 Equivalent to 170 /8s, 89 /16s and 187 /24s Percentage of available address space announced: 77.2 Percentage of allocated address space announced: 77.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 98.9 Total number of prefixes smaller than registry allocations: 231989 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 190773 Total APNIC prefixes after maximum aggregation: 54174 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 189607 Unique aggregates announced from the APNIC address blocks: 77418 APNIC Region origin ASes present in the Internet Routing Table: 8760 APNIC Prefixes per ASN: 21.64 APNIC Region origin ASes announcing only one prefix: 2447 APNIC Region transit ASes present in the Internet Routing Table: 1312 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 23 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3723 Number of APNIC addresses announced to Internet: 767006722 Equivalent to 45 /8s, 183 /16s and 152 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-137529 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 207204 Total ARIN prefixes after maximum aggregation: 99040 ARIN Deaggregation factor: 2.09 Prefixes being announced from the ARIN address blocks: 208175 Unique aggregates announced from the ARIN address blocks: 98531 ARIN Region origin ASes present in the Internet Routing Table: 18158 ARIN Prefixes per ASN: 11.46 ARIN Region origin ASes announcing only one prefix: 6718 ARIN Region transit ASes present in the Internet Routing Table: 1795 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2345 Number of ARIN addresses announced to Internet: 1104075680 Equivalent to 65 /8s, 206 /16s and 219 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-397212 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 190185 Total RIPE prefixes after maximum aggregation: 91664 RIPE Deaggregation factor: 2.07 Prefixes being announced from the RIPE address blocks: 186106 Unique aggregates announced from the RIPE address blocks: 110990 RIPE Region origin ASes present in the Internet Routing Table: 25134 RIPE Prefixes per ASN: 7.40 RIPE Region origin ASes announcing only one prefix: 11403 RIPE Region transit ASes present in the Internet Routing Table: 3498 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 6928 Number of RIPE addresses announced to Internet: 715764352 Equivalent to 42 /8s, 169 /16s and 178 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-207259 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 89824 Total LACNIC prefixes after maximum aggregation: 19834 LACNIC Deaggregation factor: 4.53 Prefixes being announced from the LACNIC address blocks: 91232 Unique aggregates announced from the LACNIC address blocks: 40975 LACNIC Region origin ASes present in the Internet Routing Table: 7081 LACNIC Prefixes per ASN: 12.88 LACNIC Region origin ASes announcing only one prefix: 1968 LACNIC Region transit ASes present in the Internet Routing Table: 1310 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 32 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 4618 Number of LACNIC addresses announced to Internet: 172822240 Equivalent to 10 /8s, 77 /16s and 14 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-268700 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 18582 Total AfriNIC prefixes after maximum aggregation: 3981 AfriNIC Deaggregation factor: 4.67 Prefixes being announced from the AfriNIC address blocks: 21228 Unique aggregates announced from the AfriNIC address blocks: 7681 AfriNIC Region origin ASes present in the Internet Routing Table: 1140 AfriNIC Prefixes per ASN: 18.62 AfriNIC Region origin ASes announcing only one prefix: 379 AfriNIC Region transit ASes present in the Internet Routing Table: 229 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 23 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 415 Number of AfriNIC addresses announced to Internet: 97958400 Equivalent to 5 /8s, 214 /16s and 186 /24s AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5404 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4389 415 431 TPG-INTERNET-AP TPG Telecom Limited, AU 4766 2899 11134 790 KIXS-AS-KR Korea Telecom, KR 9829 2810 1499 545 BSNL-NIB National Internet Backbone, IN 7552 2766 1155 71 VIETEL-AS-AP Viettel Group, VN 9394 2626 4922 26 CTTNET China TieTong Telecommunications 45899 2517 1574 160 VNPT-AS-VN VNPT Corp, VN 17974 2284 928 79 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9808 2190 8699 32 CMNET-GD Guangdong Mobile Communication 4755 2098 417 206 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6327 3379 1323 84 SHAW - Shaw Communications Inc., CA 22773 3289 2988 149 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2168 405 109 MEGAPATH5-US - MegaPath Corporation, US 20115 2097 2499 453 CHARTER-NET-HKY-NC - Charter Communicat 16509 2075 4446 643 AMAZON-02 - Amazon.com, Inc., US 209 1969 5070 607 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 30036 1962 338 176 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 11492 1872 232 540 CABLEONE - CABLE ONE, INC., US 16625 1746 852 1253 AKAMAI-AS - Akamai Technologies, Inc., 7018 1703 20213 1257 ATT-INTERNET4 - AT&T Services, Inc., US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 4088 1516 505 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 20940 2672 726 1962 AKAMAI-ASN1, US 8551 2073 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2036 1876 707 ROSTELECOM-AS, RU 34984 2019 334 485 TELLCOM-AS, TR 9121 1979 1692 19 TTNET, TR 13188 1609 100 43 TRIOLAN, UA 8402 1245 544 14 CORBINA-AS OJSC "Vimpelcom", RU 6849 1241 355 21 UKRTELNET, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 4442 3385 585 Uninet S.A. de C.V., MX 10620 3591 542 244 Telmex Colombia S.A., CO 11830 2645 369 86 Instituto Costarricense de Electricidad 6503 1612 437 53 Axtel, S.A.B. de C.V., MX 7303 1519 1026 193 Telecom Argentina S.A., AR 28573 1034 2251 184 CLARO S.A., BR 6147 1010 377 31 Telefonica del Peru S.A.A., PE 3816 1009 505 123 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11172 927 126 85 Alestra, S. de R.L. de C.V., MX 18881 909 1074 29 TELEFÔNICA BRASIL S.A, BR Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1171 396 45 LINKdotNET-AS, EG 37611 830 107 9 Afrihost, ZA 36903 739 371 141 MT-MPLS, MA 8452 669 1730 18 TE-AS TE-AS, EG 36992 665 1412 41 ETISALAT-MISR, EG 24835 598 850 15 RAYA-AS, EG 29571 474 68 12 ORANGE-COTE-IVOIRE, CI 37492 452 376 81 ORANGE-, TN 23889 362 103 14 MauritiusTelecom, MU 37342 361 32 1 MOVITEL, MZ Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5404 4192 74 ERX-CERNET-BKB China Education and Rese 8151 4442 3385 585 Uninet S.A. de C.V., MX 7545 4389 415 431 TPG-INTERNET-AP TPG Telecom Limited, AU 12479 4088 1516 505 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 10620 3591 542 244 Telmex Colombia S.A., CO 6327 3379 1323 84 SHAW - Shaw Communications Inc., CA 22773 3289 2988 149 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 4766 2899 11134 790 KIXS-AS-KR Korea Telecom, KR 9829 2810 1499 545 BSNL-NIB National Internet Backbone, IN Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7545 4389 3958 TPG-INTERNET-AP TPG Telecom Limited, AU 8151 4442 3857 Uninet S.A. de C.V., MX 39891 3778 3758 ALJAWWALSTC-AS, SA 12479 4088 3583 UNI2-AS, ES 10620 3591 3347 Telmex Colombia S.A., CO 6327 3379 3295 SHAW - Shaw Communications Inc., CA 22773 3289 3140 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 2766 2695 VIETEL-AS-AP Viettel Group, VN 9394 2626 2600 CTTNET China TieTong Telecommunications Corpora 11830 2645 2559 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 230105 UNALLOCATED 38.110.79.0/24 23015 CMC180-TOR-AS - Cambridge Merc 65001 PRIVATE 46.237.40.0/21 13118 ASN-YARTELECOM PJSC Rostelecom 64513 PRIVATE 62.150.101.0/24 9155 QNET Kuwait, KW 65537 DOCUMENT 62.162.120.0/24 6821 MT-AS-OWN bul. Orce Nikolov bb 419333 UNALLOCATED 84.17.91.0/24 41933 IPRAGAZ-AS Istanbul/ TURKEY, T 65024 PRIVATE 87.103.232.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 87.103.233.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 87.103.234.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.78.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.80.0/22 39407 CHITATELECOM-AS, RU Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 100.66.224.0/19 209 CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati 100.127.16.0/23 28885 OMANTEL-NAP-AS OmanTel NAP, OM 100.127.18.0/23 28885 OMANTEL-NAP-AS OmanTel NAP, OM Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 27.100.7.0/24 56096 UNKNOWN 41.76.136.0/22 37500 -Reserved AS-, ZZ 41.76.136.0/24 37500 -Reserved AS-, ZZ 41.76.138.0/24 37500 -Reserved AS-, ZZ 41.76.139.0/24 37500 -Reserved AS-, ZZ 41.76.140.0/22 37500 -Reserved AS-, ZZ 41.76.140.0/24 37500 -Reserved AS-, ZZ 41.76.141.0/24 37500 -Reserved AS-, ZZ 41.76.142.0/24 37500 -Reserved AS-, ZZ 41.76.143.0/24 37500 -Reserved AS-, ZZ Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:14 /9:11 /10:37 /11:100 /12:288 /13:565 /14:1096 /15:1901 /16:13407 /17:7837 /18:13590 /19:25171 /20:39380 /21:45168 /22:86697 /23:70128 /24:388993 /25:847 /26:607 /27:654 /28:36 /29:21 /30:17 /31:4 /32:53 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3168 3379 SHAW - Shaw Communications Inc., CA 39891 2946 3778 ALJAWWALSTC-AS, SA 12479 2830 4088 UNI2-AS, ES 22773 2543 3289 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2061 2168 MEGAPATH5-US - MegaPath Corporation, US 11830 1993 2645 Instituto Costarricense de Electricidad y Telec 30036 1714 1962 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 11492 1615 1872 CABLEONE - CABLE ONE, INC., US 10620 1601 3591 Telmex Colombia S.A., CO 8551 1536 2073 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1591 2:843 4:19 5:2802 6:65 7:1 8:1116 12:1870 13:185 14:1745 15:30 16:3 17:204 18:68 20:47 21:5 23:2579 24:2163 25:2 27:2277 31:1975 32:87 35:27 36:508 37:2769 38:1445 39:256 40:119 41:3093 42:574 43:1976 44:109 45:4304 46:3040 47:204 49:1312 50:1047 51:304 52:1020 54:372 55:4 56:12 57:42 58:1556 59:992 60:430 61:2154 62:1814 63:1788 64:4926 65:2199 66:4611 67:2367 68:1144 69:3191 70:1147 71:561 72:2101 74:2719 75:414 76:439 77:1549 78:1698 79:1847 80:1490 81:1409 82:1079 83:777 84:1043 85:2059 86:590 87:1302 88:938 89:2330 90:206 91:6340 92:1168 93:2370 94:2379 95:2825 96:663 97:358 98:946 99:133 100:81 101:1281 102:40 103:17600 104:3524 105:232 106:659 107:1770 108:710 109:2718 110:1604 111:1774 112:1267 113:1262 114:1123 115:1633 116:1643 117:1730 118:2167 119:1643 120:983 121:1053 122:2451 123:1815 124:1467 125:1891 128:1002 129:648 130:453 131:1597 132:666 133:196 134:1016 135:227 136:457 137:493 138:1924 139:601 140:426 141:694 142:803 143:975 144:799 145:461 146:1184 147:786 148:1593 149:700 150:732 151:1060 152:767 153:311 154:1025 155:763 156:929 157:781 158:642 159:1738 160:925 161:751 162:2584 163:546 164:1050 165:1569 166:431 167:1396 168:3066 169:800 170:3694 171:432 172:1060 173:1984 174:885 175:759 176:1943 177:4014 178:2433 179:1212 180:2247 181:2193 182:2386 183:1145 184:956 185:13421 186:3608 187:2370 188:2770 189:2032 190:8091 191:1468 192:9836 193:5885 194:4773 195:3955 196:2530 197:1457 198:5525 199:5882 200:7399 201:4997 202:10326 203:10185 204:4562 205:2879 206:3095 207:3204 208:3979 209:3948 210:4033 211:2116 212:3005 213:2730 214:957 215:61 216:5928 217:2126 218:912 219:622 220:1754 221:995 222:1038 223:1242 End of report

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Weekly Routing Table Report
by cscora＠apnic.net 13 Apr '18

13 Apr '18

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 14 Apr, 2018 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 694221 Prefixes after maximum aggregation (per Origin AS): 268062 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 333993 Total ASes present in the Internet Routing Table: 60376 Prefixes per ASN: 11.50 Origin-only ASes present in the Internet Routing Table: 52151 Origin ASes announcing only one prefix: 22835 Transit ASes present in the Internet Routing Table: 8225 Transit-only ASes present in the Internet Routing Table: 268 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 34 Max AS path prepend of ASN ( 30873) 32 Prefixes from unregistered ASNs in the Routing Table: 46 Number of instances of unregistered ASNs: 46 Number of 32-bit ASNs allocated by the RIRs: 22190 Number of 32-bit ASNs visible in the Routing Table: 17842 Prefixes from 32-bit ASNs in the Routing Table: 74177 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 367 Number of addresses announced to Internet: 2862806274 Equivalent to 170 /8s, 162 /16s and 245 /24s Percentage of available address space announced: 77.3 Percentage of allocated address space announced: 77.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 98.9 Total number of prefixes smaller than registry allocations: 231118 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 190229 Total APNIC prefixes after maximum aggregation: 53961 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 189163 Unique aggregates announced from the APNIC address blocks: 77142 APNIC Region origin ASes present in the Internet Routing Table: 8713 APNIC Prefixes per ASN: 21.71 APNIC Region origin ASes announcing only one prefix: 2428 APNIC Region transit ASes present in the Internet Routing Table: 1303 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3675 Number of APNIC addresses announced to Internet: 767084034 Equivalent to 45 /8s, 184 /16s and 198 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-137529 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 206423 Total ARIN prefixes after maximum aggregation: 98887 ARIN Deaggregation factor: 2.09 Prefixes being announced from the ARIN address blocks: 206893 Unique aggregates announced from the ARIN address blocks: 97703 ARIN Region origin ASes present in the Internet Routing Table: 18135 ARIN Prefixes per ASN: 11.41 ARIN Region origin ASes announcing only one prefix: 6704 ARIN Region transit ASes present in the Internet Routing Table: 1794 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2335 Number of ARIN addresses announced to Internet: 1109026464 Equivalent to 66 /8s, 26 /16s and 102 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-397212 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 189340 Total RIPE prefixes after maximum aggregation: 91435 RIPE Deaggregation factor: 2.07 Prefixes being announced from the RIPE address blocks: 185690 Unique aggregates announced from the RIPE address blocks: 110508 RIPE Region origin ASes present in the Internet Routing Table: 25094 RIPE Prefixes per ASN: 7.40 RIPE Region origin ASes announcing only one prefix: 11401 RIPE Region transit ASes present in the Internet Routing Table: 3486 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 6884 Number of RIPE addresses announced to Internet: 716174976 Equivalent to 42 /8s, 175 /16s and 246 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-207259 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 89451 Total LACNIC prefixes after maximum aggregation: 19714 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 90842 Unique aggregates announced from the LACNIC address blocks: 40741 LACNIC Region origin ASes present in the Internet Routing Table: 7008 LACNIC Prefixes per ASN: 12.96 LACNIC Region origin ASes announcing only one prefix: 1926 LACNIC Region transit ASes present in the Internet Routing Table: 1311 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 32 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 4541 Number of LACNIC addresses announced to Internet: 172652768 Equivalent to 10 /8s, 74 /16s and 120 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-268700 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 18730 Total AfriNIC prefixes after maximum aggregation: 4023 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 21266 Unique aggregates announced from the AfriNIC address blocks: 7607 AfriNIC Region origin ASes present in the Internet Routing Table: 1132 AfriNIC Prefixes per ASN: 18.79 AfriNIC Region origin ASes announcing only one prefix: 375 AfriNIC Region transit ASes present in the Internet Routing Table: 227 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 407 Number of AfriNIC addresses announced to Internet: 97447936 Equivalent to 5 /8s, 206 /16s and 240 /24s AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5407 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4378 415 431 TPG-INTERNET-AP TPG Telecom Limited, AU 4766 2854 11131 783 KIXS-AS-KR Korea Telecom, KR 9829 2815 1499 544 BSNL-NIB National Internet Backbone, IN 7552 2725 1155 69 VIETEL-AS-AP Viettel Group, VN 9394 2635 4923 29 CTTNET China TieTong Telecommunications 45899 2586 1574 161 VNPT-AS-VN VNPT Corp, VN 17974 2330 928 79 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9808 2171 8699 32 CMNET-GD Guangdong Mobile Communication 4755 2091 417 215 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6327 3365 1323 85 SHAW - Shaw Communications Inc., CA 22773 3287 2988 150 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2168 405 109 MEGAPATH5-US - MegaPath Corporation, US 20115 2093 2490 448 CHARTER-NET-HKY-NC - Charter Communicat 16509 2054 4413 636 AMAZON-02 - Amazon.com, Inc., US 30036 1952 338 186 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 209 1922 5070 606 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 11492 1800 227 546 CABLEONE - CABLE ONE, INC., US 16625 1750 856 1248 AKAMAI-AS - Akamai Technologies, Inc., 7018 1707 20205 1255 ATT-INTERNET4 - AT&T Services, Inc., US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 4036 1512 488 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 20940 2695 742 1980 AKAMAI-ASN1, US 8551 2126 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2029 1859 706 ROSTELECOM-AS, RU 34984 1977 333 490 TELLCOM-AS, TR 9121 1968 1692 19 TTNET, TR 13188 1608 100 47 TRIOLAN, UA 6849 1241 355 21 UKRTELNET, UA 8402 1226 544 14 CORBINA-AS OJSC "Vimpelcom", RU Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 4345 3387 574 Uninet S.A. de C.V., MX 10620 3570 539 270 Telmex Colombia S.A., CO 11830 2641 369 85 Instituto Costarricense de Electricidad 6503 1626 437 53 Axtel, S.A.B. de C.V., MX 7303 1510 1024 192 Telecom Argentina S.A., AR 28573 1037 2254 176 CLARO S.A., BR 3816 1005 504 121 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 996 377 31 Telefonica del Peru S.A.A., PE 11172 928 126 85 Alestra, S. de R.L. de C.V., MX 18881 908 1074 29 TELEFÔNICA BRASIL S.A, BR Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1144 396 44 LINKdotNET-AS, EG 37611 824 107 9 Afrihost, ZA 36903 741 372 137 MT-MPLS, MA 36992 701 1412 41 ETISALAT-MISR, EG 8452 643 1730 18 TE-AS TE-AS, EG 24835 638 850 15 RAYA-AS, EG 29571 472 68 12 ORANGE-COTE-IVOIRE, CI 37492 451 376 81 ORANGE-, TN 15399 362 35 7 WANANCHI-, KE 37342 361 32 1 MOVITEL, MZ Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5407 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4378 415 431 TPG-INTERNET-AP TPG Telecom Limited, AU 8151 4345 3387 574 Uninet S.A. de C.V., MX 12479 4036 1512 488 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 10620 3570 539 270 Telmex Colombia S.A., CO 6327 3365 1323 85 SHAW - Shaw Communications Inc., CA 22773 3287 2988 150 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 4766 2854 11131 783 KIXS-AS-KR Korea Telecom, KR 9829 2815 1499 544 BSNL-NIB National Internet Backbone, IN Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7545 4378 3947 TPG-INTERNET-AP TPG Telecom Limited, AU 8151 4345 3771 Uninet S.A. de C.V., MX 39891 3778 3758 ALJAWWALSTC-AS, SA 12479 4036 3548 UNI2-AS, ES 10620 3570 3300 Telmex Colombia S.A., CO 6327 3365 3280 SHAW - Shaw Communications Inc., CA 22773 3287 3137 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 2725 2656 VIETEL-AS-AP Viettel Group, VN 9394 2635 2606 CTTNET China TieTong Telecommunications Corpora 11830 2641 2556 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 230105 UNALLOCATED 38.110.79.0/24 23015 CMC180-TOR-AS - Cambridge Merc 65001 PRIVATE 46.237.40.0/21 13118 ASN-YARTELECOM PJSC Rostelecom 64513 PRIVATE 62.150.101.0/24 9155 QNET Kuwait, KW 65537 DOCUMENT 62.162.120.0/24 6821 MT-AS-OWN bul. Orce Nikolov bb 65024 PRIVATE 87.103.234.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.78.0/24 39407 CHITATELECOM-AS, RU 65024 PRIVATE 95.189.80.0/22 39407 CHITATELECOM-AS, RU 64111 UNALLOCATED 98.159.5.0/24 19555 KMI-NETWORK - Kinder Morgan, I 64111 UNALLOCATED 98.159.7.0/24 19555 KMI-NETWORK - Kinder Morgan, I 64121 UNALLOCATED 98.159.9.0/24 19555 KMI-NETWORK - Kinder Morgan, I Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 100.66.224.0/19 209 CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati 100.127.16.0/23 28885 OMANTEL-NAP-AS OmanTel NAP, OM 100.127.18.0/23 28885 OMANTEL-NAP-AS OmanTel NAP, OM Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 14.128.14.0/23 10247 NETLINE, ZA 14.192.48.0/24 327815 XNET, NA 14.192.50.0/23 10247 NETLINE, ZA 14.192.58.0/23 10247 NETLINE, ZA 27.100.7.0/24 56096 UNKNOWN 36.255.250.0/23 10247 NETLINE, ZA 41.76.136.0/22 37500 -Reserved AS-, ZZ 41.76.136.0/24 37500 -Reserved AS-, ZZ 41.76.138.0/24 37500 -Reserved AS-, ZZ 41.76.139.0/24 37500 -Reserved AS-, ZZ Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:15 /9:12 /10:37 /11:100 /12:288 /13:564 /14:1097 /15:1902 /16:13397 /17:7836 /18:13669 /19:25227 /20:39361 /21:45193 /22:86301 /23:70047 /24:386928 /25:849 /26:607 /27:662 /28:35 /29:20 /30:17 /31:4 /32:53 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3153 3365 SHAW - Shaw Communications Inc., CA 39891 2946 3778 ALJAWWALSTC-AS, SA 12479 2772 4036 UNI2-AS, ES 22773 2540 3287 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2061 2168 MEGAPATH5-US - MegaPath Corporation, US 11830 1989 2641 Instituto Costarricense de Electricidad y Telec 30036 1703 1952 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 10620 1599 3570 Telmex Colombia S.A., CO 8551 1589 2126 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 1558 1800 CABLEONE - CABLE ONE, INC., US Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1592 2:825 4:19 5:2869 6:59 7:1 8:1122 12:1876 13:183 14:1746 15:30 16:3 17:200 18:68 20:47 21:4 23:2549 24:2153 25:2 27:2269 31:1971 32:87 35:27 36:505 37:2757 38:1449 39:253 40:118 41:3104 42:606 43:1938 44:104 45:4100 46:3070 47:204 49:1297 50:1048 51:304 52:993 54:372 55:5 56:12 57:42 58:1532 59:1011 60:430 61:2139 62:1815 63:1803 64:4758 65:2221 66:4587 67:2351 68:1146 69:3192 70:1149 71:560 72:2093 74:2718 75:411 76:429 77:1549 78:1699 79:1929 80:1478 81:1429 82:1080 83:770 84:1040 85:2050 86:580 87:1318 88:933 89:2309 90:208 91:6310 92:1171 93:2390 94:2370 95:2781 96:659 97:357 98:943 99:133 100:81 101:1259 102:40 103:17406 104:3250 105:228 106:654 107:1763 108:711 109:2699 110:1597 111:1780 112:1267 113:1337 114:1121 115:1637 116:1641 117:1705 118:2158 119:1664 120:965 121:1057 122:2451 123:1810 124:1450 125:1891 128:979 129:638 130:449 131:1574 132:677 133:196 134:1015 135:226 136:455 137:498 138:1908 139:593 140:424 141:688 142:782 143:975 144:810 145:459 146:1178 147:766 148:1560 149:701 150:720 151:1048 152:762 153:312 154:1029 155:754 156:870 157:784 158:629 159:1667 160:923 161:747 162:2579 163:531 164:1057 165:1412 166:425 167:1403 168:3051 169:806 170:3687 171:428 172:1040 173:1946 174:887 175:750 176:1851 177:3975 178:2418 179:1218 180:2247 181:2218 182:2386 183:1138 184:919 185:13255 186:3581 187:2381 188:2764 189:2026 190:8121 191:1438 192:9829 193:5888 194:4795 195:3952 196:2505 197:1424 198:5538 199:5864 200:7392 201:5013 202:10371 203:10177 204:4520 205:2878 206:3075 207:3199 208:3979 209:3937 210:4035 211:2111 212:3017 213:2725 214:950 215:60 216:5841 217:2130 218:908 219:619 220:1748 221:995 222:1039 223:1244 End of report

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Historical routing question
by Hank Nussbacher 11 Apr '18

11 Apr '18

While giving a routing lecture today someone asked me "Why was eBGP assigned an administrative distance of 20 which is better than OSPF's administrative distance of 110. What was the logic behind that decision?" I was unable to think of an answer. Ideas? Thanks, Hank

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