March 2011 - routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Analysis Role Account 11 Mar '11

11 Mar '11

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, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. 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 <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 12 Mar, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 350049 Prefixes after maximum aggregation: 157788 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 172931 Total ASes present in the Internet Routing Table: 36036 Prefixes per ASN: 9.71 Origin-only ASes present in the Internet Routing Table: 31061 Origin ASes announcing only one prefix: 14941 Transit ASes present in the Internet Routing Table: 4975 Transit-only ASes present in the Internet Routing Table: 124 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 392 Unregistered ASNs in the Routing Table: 178 Number of 32-bit ASNs allocated by the RIRs: 1191 Prefixes from 32-bit ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 252 Number of addresses announced to Internet: 2467281824 Equivalent to 147 /8s, 15 /16s and 187 /24s Percentage of available address space announced: 66.6 Percentage of allocated address space announced: 66.6 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 89.1 Total number of prefixes smaller than registry allocations: 145075 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 87220 Total APNIC prefixes after maximum aggregation: 29669 APNIC Deaggregation factor: 2.94 Prefixes being announced from the APNIC address blocks: 84042 Unique aggregates announced from the APNIC address blocks: 36224 APNIC Region origin ASes present in the Internet Routing Table: 4339 APNIC Prefixes per ASN: 19.37 APNIC Region origin ASes announcing only one prefix: 1194 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 595474464 Equivalent to 35 /8s, 126 /16s and 56 /24s Percentage of available APNIC address space announced: 75.5 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 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, 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: 140487 Total ARIN prefixes after maximum aggregation: 71719 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 110994 Unique aggregates announced from the ARIN address blocks: 44983 ARIN Region origin ASes present in the Internet Routing Table: 14247 ARIN Prefixes per ASN: 7.79 ARIN Region origin ASes announcing only one prefix: 5417 ARIN Region transit ASes present in the Internet Routing Table: 1472 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 796431232 Equivalent to 47 /8s, 120 /16s and 147 /24s Percentage of available ARIN address space announced: 63.3 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, 393216-394239 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, 173/8, 174/8, 184/8, 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: 82683 Total RIPE prefixes after maximum aggregation: 47102 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 76020 Unique aggregates announced from the RIPE address blocks: 49879 RIPE Region origin ASes present in the Internet Routing Table: 15397 RIPE Prefixes per ASN: 4.94 RIPE Region origin ASes announcing only one prefix: 7770 RIPE Region transit ASes present in the Internet Routing Table: 2401 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 480842752 Equivalent to 28 /8s, 169 /16s and 20 /24s Percentage of available RIPE address space announced: 77.5 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 196608-198655 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, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31952 Total LACNIC prefixes after maximum aggregation: 7382 LACNIC Deaggregation factor: 4.33 Prefixes being announced from the LACNIC address blocks: 30818 Unique aggregates announced from the LACNIC address blocks: 16131 LACNIC Region origin ASes present in the Internet Routing Table: 1438 LACNIC Prefixes per ASN: 21.43 LACNIC Region origin ASes announcing only one prefix: 431 LACNIC Region transit ASes present in the Internet Routing Table: 264 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 81386624 Equivalent to 4 /8s, 217 /16s and 220 /24s Percentage of available LACNIC address space announced: 53.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7497 Total AfriNIC prefixes after maximum aggregation: 1812 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 5880 Unique aggregates announced from the AfriNIC address blocks: 1850 AfriNIC Region origin ASes present in the Internet Routing Table: 434 AfriNIC Prefixes per ASN: 13.55 AfriNIC Region origin ASes announcing only one prefix: 129 AfriNIC Region transit ASes present in the Internet Routing Table: 94 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 22031360 Equivalent to 1 /8s, 80 /16s and 44 /24s Percentage of available AfriNIC address space announced: 32.8 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2421 9508 892 Korea Telecom (KIX) 7545 1594 301 84 TPG Internet Pty Ltd 4755 1473 653 157 TATA Communications formerly 17974 1413 468 29 PT TELEKOMUNIKASI INDONESIA 24560 1120 324 186 Bharti Airtel Ltd., Telemedia 9583 1048 77 488 Sify Limited 4808 1046 2142 294 CNCGROUP IP network: China169 9829 1005 868 53 BSNL National Internet Backbo 17488 944 162 100 Hathway IP Over Cable Interne 18101 938 117 144 Reliance Infocom Ltd Internet 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 6389 3681 3839 259 bellsouth.net, inc. 4323 2584 1109 403 Time Warner Telecom 19262 1829 4953 282 Verizon Global Networks 1785 1792 681 131 PaeTec Communications, Inc. 6478 1538 298 75 AT&T Worldnet Services 20115 1526 1534 650 Charter Communications 18566 1524 326 180 Covad Communications 7018 1365 6706 887 AT&T WorldNet Services 11492 1311 236 66 Cable One 2386 1294 537 934 AT&T Data Communications Serv 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 6830 515 1780 318 UPC Distribution Services 9198 470 267 15 Kazakhtelecom Data Network Ad 3292 450 1996 389 TDC Tele Danmark 34984 449 95 200 BILISIM TELEKOM 8866 443 133 23 Bulgarian Telecommunication C 20940 411 98 314 Akamai Technologies European 3320 407 7604 353 Deutsche Telekom AG 8551 403 353 46 Bezeq International 12479 401 577 6 Uni2 Autonomous System 8402 397 320 11 Corbina telecom 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 10620 1384 258 163 TVCABLE BOGOTA 8151 1243 2700 368 UniNet S.A. de C.V. 28573 1234 963 83 NET Servicos de Comunicao S.A 6503 1181 354 72 AVANTEL, S.A. 7303 919 464 148 Telecom Argentina Stet-France 14420 644 56 93 CORPORACION NACIONAL DE TELEC 22047 541 310 15 VTR PUNTO NET S.A. 3816 514 225 97 Empresa Nacional de Telecomun 11172 488 83 82 Servicios Alestra S.A de C.V 7738 479 922 30 Telecomunicacoes da Bahia S.A 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 8452 791 445 11 TEDATA 24863 762 147 36 LINKdotNET AS number 15475 419 90 8 Nile Online 36992 300 271 14 Etisalat MISR 3741 266 987 228 The Internet Solution 33776 230 13 5 Starcomms Nigeria Limited 24835 228 78 10 RAYA Telecom - Egypt 6713 204 199 11 Itissalat Al-MAGHRIB 29571 192 17 11 Ci Telecom Autonomous system 16637 141 422 85 MTN Network Solutions 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 6389 3681 3839 259 bellsouth.net, inc. 4323 2584 1109 403 Time Warner Telecom 4766 2421 9508 892 Korea Telecom (KIX) 19262 1829 4953 282 Verizon Global Networks 1785 1792 681 131 PaeTec Communications, Inc. 7545 1594 301 84 TPG Internet Pty Ltd 6478 1538 298 75 AT&T Worldnet Services 20115 1526 1534 650 Charter Communications 18566 1524 326 180 Covad Communications 4755 1473 653 157 TATA Communications formerly Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2584 2181 Time Warner Telecom 1785 1792 1661 PaeTec Communications, Inc. 19262 1829 1547 Verizon Global Networks 4766 2421 1529 Korea Telecom (KIX) 7545 1594 1510 TPG Internet Pty Ltd 6478 1538 1463 AT&T Worldnet Services 17974 1413 1384 PT TELEKOMUNIKASI INDONESIA 18566 1524 1344 Covad Communications 4755 1473 1316 TATA Communications formerly 11492 1311 1245 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 1.5.0.0/16 38639 NTT Communications Corporatio 1.6.0.0/15 38639 NTT Communications Corporatio 1.8.0.0/16 38639 NTT Communications Corporatio 1.20.0.0/16 38639 NTT Communications Corporatio 1.32.0.0/16 38639 NTT Communications Corporatio 1.37.0.0/16 38639 NTT Communications Corporatio 1.187.0.0/16 38639 NTT Communications Corporatio 14.0.0.0/24 38639 NTT Communications Corporatio 14.0.1.0/24 38639 NTT Communications Corporatio 14.0.2.0/23 38639 NTT Communications Corporatio 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 /8:24 /9:11 /10:26 /11:73 /12:216 /13:447 /14:768 /15:1370 /16:11556 /17:5669 /18:9352 /19:19025 /20:24651 /21:25208 /22:33478 /23:32020 /24:182909 /25:1136 /26:1330 /27:720 /28:42 /29:9 /30:3 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2271 3681 bellsouth.net, inc. 18566 1502 1524 Covad Communications 6478 1492 1538 AT&T Worldnet Services 4323 1391 2584 Time Warner Telecom 10620 1275 1384 TVCABLE BOGOTA 11492 1268 1311 Cable One 7011 1058 1158 Citizens Utilities 1785 1055 1792 PaeTec Communications, Inc. 6503 959 1181 AVANTEL, S.A. 19262 941 1829 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:271 2:57 4:14 5:1 8:340 12:2027 13:1 14:429 15:15 16:3 17:8 20:9 23:3 24:1515 27:608 31:2 32:60 33:4 34:2 36:2 37:1 38:714 39:1 40:101 41:2306 42:13 44:3 46:703 47:4 49:164 50:197 52:13 55:2 56:2 57:32 58:860 59:495 60:386 61:1133 62:1013 63:1922 64:3867 65:2351 66:4339 67:1775 68:1063 69:2886 70:701 71:399 72:2007 73:1 74:2351 75:283 76:341 77:837 78:699 79:445 80:1093 81:801 82:514 83:462 84:644 85:1044 86:571 87:753 88:350 89:1568 90:174 91:3593 92:486 93:1045 94:1216 95:778 96:471 97:251 98:805 99:34 101:58 106:1 107:4 108:129 109:905 110:477 111:720 112:320 113:379 114:496 115:711 116:958 117:678 118:719 119:1036 120:256 121:753 122:1615 123:1042 124:1298 125:1262 128:266 129:168 130:171 131:560 132:110 133:20 134:220 135:49 136:212 137:146 138:298 139:110 140:487 141:203 142:377 143:379 144:493 145:52 146:424 147:194 148:640 149:276 150:161 151:229 152:298 153:180 154:3 155:377 156:179 157:345 158:131 159:371 160:312 161:211 162:277 163:160 164:487 165:352 166:496 167:410 168:728 169:156 170:760 171:69 172:2 173:1259 174:516 175:328 177:35 178:804 180:813 181:4 182:384 183:243 184:233 186:1044 187:837 188:919 189:1032 190:4561 192:5756 193:4780 194:3483 195:2948 196:1171 197:4 198:3581 199:3867 200:5585 201:1585 202:8302 203:8484 204:4106 205:2305 206:2653 207:3071 208:3909 209:3484 210:2686 211:1348 212:1932 213:1716 214:751 215:63 216:4844 217:1653 218:554 219:382 220:1199 221:476 222:318 223:101 End of report

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so big earthquake in JP
by Tomoya Yoshida 11 Mar '11

11 Mar '11

Japan had so big terrible earthquake -- Tomoya Yoshida <yoshida(a)nttv6.jp>

14 20

route objects changes (AS migration)
by Sergey A. Osokin 11 Mar '11

11 Mar '11

Hello, we are under migration from one AS12772 to new one AS56341. Currently, in RIPE DB networks have route-objects with old AS12772. Could you tell me when I need make changes (modify or remove/add) in RIPE DB: 1) add new route objects before migration and remove old after migration; 2) modify route objects after migration; 3) remove old route objects after migration and then create new objects. Thank you. -- Best regards, Sergey A. Osokin Head of network development department ENTER, LLC Tel.: +7(495)739-7559 (# 7761) Fax: +7(495)739-7559 (# 7777) Address: 127083 Moscow, Mishina st., 56, bld.2 E-mail: s.osokin(a)en-ter.ru Web: www.en-ter.ru

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Short video explaining Resource Certification
by Alex Band 06 Mar '11

06 Mar '11

Dear colleagues, Under the NRO flag, we have just released a short video about Resource Certification, explaining what it is and why it is important for your organisation: http://youtu.be/rH3CPosGNjY For information on how to set up and use the hosted Resource Certification service the RIPE NCC provides, please watch this video we posted earlier: http://youtu.be/Q0C0kEYa1d8 Kind regards, Alex Band Product Manager, RIPE NCC

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BGP Update Report
by cidr-report＠potaroo.net 04 Mar '11

04 Mar '11

BGP Update Report Interval: 24-Feb-11 -to- 03-Mar-11 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9829 18263 1.2% 14.3 -- BSNL-NIB National Internet Backbone 2 - AS6503 16222 1.1% 6.6 -- Axtel, S.A.B. de C.V. 3 - AS17842 14640 1.0% 1464.0 -- CNE-AS-KR Chungchungnam-Do office of Education 4 - AS35931 14104 1.0% 2350.7 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - AS9498 13232 0.9% 16.9 -- BBIL-AP BHARTI Airtel Ltd. 6 - AS10113 13011 0.9% 64.7 -- DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 7 - AS23681 12453 0.9% 1383.7 -- ITU-TRANSIT-AS-AP Paradox Digital ASN on behalf of IT Universe. To provide BGP interconnects to VIX and Paradox. 8 - AS32528 12393 0.8% 1549.1 -- ABBOTT Abbot Labs 9 - AS5722 12254 0.8% 188.5 -- Universidad Nacional de Colombia 10 - AS25086 12046 0.8% 1204.6 -- URALTC-AS CJSC "COMSTAR-regions" 11 - AS24560 11094 0.8% 9.9 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 12 - AS17974 11011 0.8% 7.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 13 - AS14522 10912 0.8% 25.3 -- Satnet 14 - AS4755 10717 0.7% 7.4 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 15 - AS27738 9055 0.6% 26.7 -- Ecuadortelecom S.A. 16 - AS1785 8587 0.6% 4.8 -- AS-PAETEC-NET - PaeTec Communications, Inc. 17 - AS7552 8316 0.6% 12.5 -- VIETEL-AS-AP Vietel Corporation 18 - AS22950 7673 0.5% 163.3 -- USASK - University of Saskatchewan 19 - AS11492 7667 0.5% 5.9 -- CABLEONE - CABLE ONE, INC. 20 - AS25220 7516 0.5% 578.2 -- GLOBALNOC-AS Averbo GmbH TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS17874 6163 0.4% 6163.0 -- NPC-AS-KR National Pension Corporation 2 - AS5572 5213 0.4% 2606.5 -- BOTIK Botik Technologies Ltd. 3 - AS35931 14104 1.0% 2350.7 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 4 - AS10198 4496 0.3% 2248.0 -- CUP-AS-KR Catholic University of Pusan 5 - AS32528 12393 0.8% 1549.1 -- ABBOTT Abbot Labs 6 - AS17842 14640 1.0% 1464.0 -- CNE-AS-KR Chungchungnam-Do office of Education 7 - AS23681 12453 0.9% 1383.7 -- ITU-TRANSIT-AS-AP Paradox Digital ASN on behalf of IT Universe. To provide BGP interconnects to VIX and Paradox. 8 - AS35619 1370 0.1% 1370.0 -- APISNET APIS Ltd. 9 - AS32909 2692 0.2% 1346.0 -- ROYALTY-CARPET-MILLS - Royalty Carpet Mills 10 - AS25086 12046 0.8% 1204.6 -- URALTC-AS CJSC "COMSTAR-regions" 11 - AS45699 4516 0.3% 903.2 -- JDN-AS-ID Jogja Digital, PT 12 - AS49600 792 0.1% 792.0 -- LASEDA La Seda de Barcelona, S.A 13 - AS28519 2118 0.1% 706.0 -- Universidad Autonoma de Guadalajara, A.C. 14 - AS25220 7516 0.5% 578.2 -- GLOBALNOC-AS Averbo GmbH 15 - AS47805 1052 0.1% 526.0 -- MCIT Ministry of Communications and Information 16 - AS49777 4593 0.3% 510.3 -- ATEXS-AS ATEXS PLUS Ltd. 17 - AS28247 1959 0.1% 489.8 -- 18 - AS27771 959 0.1% 479.5 -- Instituto Venezolano de Investigaciones Cientificas 19 - AS46167 384 0.0% 384.0 -- LANDSERVICESUSA - Land Services USA, Inc 20 - AS18399 5272 0.4% 351.5 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC & Teleport International Transit TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 85.235.42.0/23 10889 0.6% AS25086 -- URALTC-AS CJSC "COMSTAR-regions" 2 - 202.92.235.0/24 9331 0.5% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 3 - 63.211.68.0/22 9122 0.5% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 4 - 202.61.252.0/24 8292 0.5% AS10113 -- DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD AS23681 -- ITU-TRANSIT-AS-AP Paradox Digital ASN on behalf of IT Universe. To provide BGP interconnects to VIX and Paradox. 5 - 202.61.212.0/24 8292 0.5% AS10113 -- DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD AS23681 -- ITU-TRANSIT-AS-AP Paradox Digital ASN on behalf of IT Universe. To provide BGP interconnects to VIX and Paradox. 6 - 202.61.234.0/24 8292 0.5% AS10113 -- DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD AS23681 -- ITU-TRANSIT-AS-AP Paradox Digital ASN on behalf of IT Universe. To provide BGP interconnects to VIX and Paradox. 7 - 85.197.100.0/22 7504 0.4% AS25220 -- GLOBALNOC-AS Averbo GmbH 8 - 130.36.34.0/24 6193 0.3% AS32528 -- ABBOTT Abbot Labs 9 - 130.36.35.0/24 6189 0.3% AS32528 -- ABBOTT Abbot Labs 10 - 211.173.99.0/24 6163 0.3% AS17874 -- NPC-AS-KR National Pension Corporation 11 - 193.232.174.0/24 5176 0.3% AS5572 -- BOTIK Botik Technologies Ltd. 12 - 198.140.43.0/24 4862 0.3% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 13 - 168.176.127.0/24 4051 0.2% AS5722 -- Universidad Nacional de Colombia 14 - 200.24.8.0/24 4038 0.2% AS5722 -- Universidad Nacional de Colombia 15 - 168.176.197.0/24 4038 0.2% AS5722 -- Universidad Nacional de Colombia 16 - 68.65.152.0/22 3457 0.2% AS11915 -- TELWEST-NETWORK-SVCS-STATIC - TEL WEST COMMUNICATIONS LLC 17 - 202.153.174.0/24 3021 0.2% AS17408 -- ABOVE-AS-AP AboveNet Communications Taiwan 18 - 203.192.205.0/24 2949 0.2% AS17665 -- IN2CABLE-AP AS Number of In2cable.com (India) Ltd. AS9498 -- BBIL-AP BHARTI Airtel Ltd. 19 - 206.184.16.0/24 2928 0.2% AS174 -- COGENT Cogent/PSI 20 - 210.93.62.0/23 2248 0.1% AS10198 -- CUP-AS-KR Catholic University of Pusan Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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The Cidr Report
by cidr-report＠potaroo.net 04 Mar '11

04 Mar '11

This report has been generated at Fri Mar 4 21:11:55 2011 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 25-02-11 350116 205298 26-02-11 350148 205121 27-02-11 349941 205119 28-02-11 349947 205114 01-03-11 350017 205278 02-03-11 350400 205668 03-03-11 350734 205625 04-03-11 350670 205625 AS Summary 36938 Number of ASes in routing system 15565 Number of ASes announcing only one prefix 3683 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 108914944 Largest address span announced by an AS (/32s) AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 04Mar11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 351354 205549 145805 41.5% All ASes AS6389 3683 265 3418 92.8% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4323 2573 407 2166 84.2% TWTC - tw telecom holdings, inc. AS19262 1829 282 1547 84.6% VZGNI-TRANSIT - Verizon Online LLC AS4766 2419 909 1510 62.4% KIXS-AS-KR Korea Telecom AS6478 1531 211 1320 86.2% ATT-INTERNET3 - AT&T Services, Inc. AS10620 1387 182 1205 86.9% Telmex Colombia S.A. AS22773 1277 89 1188 93.0% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS4755 1422 354 1068 75.1% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS1785 1793 764 1029 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS18566 1522 611 911 59.9% COVAD - Covad Communications Co. AS28573 1220 317 903 74.0% NET Servicos de Comunicao S.A. AS7545 1606 739 867 54.0% TPG-INTERNET-AP TPG Internet Pty Ltd AS18101 934 154 780 83.5% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS24560 1106 349 757 68.4% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS6503 1176 441 735 62.5% Axtel, S.A.B. de C.V. AS4808 1050 326 724 69.0% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS7303 912 192 720 78.9% Telecom Argentina S.A. AS3356 1184 491 693 58.5% LEVEL3 Level 3 Communications AS8151 1363 680 683 50.1% Uninet S.A. de C.V. AS11492 1290 618 672 52.1% CABLEONE - CABLE ONE, INC. AS17488 940 275 665 70.7% HATHWAY-NET-AP Hathway IP Over Cable Internet AS4780 861 222 639 74.2% SEEDNET Digital United Inc. AS17676 651 70 581 89.2% GIGAINFRA Softbank BB Corp. AS855 634 58 576 90.9% CANET-ASN-4 - Bell Aliant Regional Communications, Inc. AS14420 644 104 540 83.9% CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP AS22561 861 322 539 62.6% DIGITAL-TELEPORT - Digital Teleport Inc. AS7552 664 128 536 80.7% VIETEL-AS-AP Vietel Corporation AS3549 896 369 527 58.8% GBLX Global Crossing Ltd. AS22047 541 30 511 94.5% VTR BANDA ANCHA S.A. AS9498 769 260 509 66.2% BBIL-AP BHARTI Airtel Ltd. Total 38738 10219 28519 73.6% Top 30 total Possible Bogus Routes 1.5.0.0/16 AS38639 HANABI NTT Communications Corporation 1.6.0.0/15 AS38639 HANABI NTT Communications Corporation 1.8.0.0/16 AS38639 HANABI NTT Communications Corporation 1.20.0.0/16 AS38639 HANABI NTT Communications Corporation 1.32.0.0/16 AS38639 HANABI NTT Communications Corporation 1.37.0.0/16 AS38639 HANABI NTT Communications Corporation 1.187.0.0/16 AS38639 HANABI NTT Communications Corporation 1.200.0.0/20 AS38639 HANABI NTT Communications Corporation 14.0.0.0/24 AS38639 HANABI NTT Communications Corporation 14.0.1.0/24 AS38639 HANABI NTT Communications Corporation 14.0.2.0/23 AS38639 HANABI NTT Communications Corporation 14.0.4.0/24 AS38639 HANABI NTT Communications Corporation 14.0.15.0/24 AS38639 HANABI NTT Communications Corporation 14.1.0.0/24 AS38639 HANABI NTT Communications Corporation 14.102.128.0/23 AS38639 HANABI NTT Communications Corporation 14.192.76.0/24 AS38639 HANABI NTT Communications Corporation 24.48.0.0/14 AS5769 VIDEOTRON - Videotron Telecom Ltee 24.129.192.0/19 AS7922 COMCAST-7922 - Comcast Cable Communications, Inc. 24.225.128.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/23 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.224.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.237.0/24 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.248.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 36.0.0.0/24 AS38639 HANABI NTT Communications Corporation 36.0.1.0/24 AS38639 HANABI NTT Communications Corporation 36.50.0.0/20 AS38639 HANABI NTT Communications Corporation 36.255.0.0/16 AS38639 HANABI NTT Communications Corporation 41.57.192.0/18 AS22750 BCSNET 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 42.0.0.0/24 AS38639 HANABI NTT Communications Corporation 42.0.1.0/24 AS38639 HANABI NTT Communications Corporation 42.0.25.0/24 AS38639 HANABI NTT Communications Corporation 42.1.56.0/23 AS38639 HANABI NTT Communications Corporation 42.50.0.0/20 AS38639 HANABI NTT Communications Corporation 42.62.181.0/24 AS38639 HANABI NTT Communications Corporation 42.83.80.0/24 AS38639 HANABI NTT Communications Corporation 42.96.111.0/24 AS38639 HANABI NTT Communications Corporation 42.99.114.0/24 AS38639 HANABI NTT Communications Corporation 42.123.39.0/24 AS38639 HANABI NTT Communications Corporation 42.156.39.0/24 AS38639 HANABI NTT Communications Corporation 42.187.123.0/24 AS38639 HANABI NTT Communications Corporation 42.194.10.0/24 AS38639 HANABI NTT Communications Corporation 42.201.36.0/24 AS38639 HANABI NTT Communications Corporation 42.240.51.0/24 AS38639 HANABI NTT Communications Corporation 42.255.0.0/16 AS38639 HANABI NTT Communications Corporation 45.127.0.0/16 AS13767 DBANK - DataBank Holdings, Ltd. 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.207.192.0/24 AS30304 64.207.193.0/24 AS30304 64.207.194.0/24 AS30304 64.207.195.0/24 AS30304 64.207.196.0/24 AS30304 64.207.197.0/24 AS30304 64.207.198.0/24 AS30304 64.207.200.0/24 AS30304 64.207.201.0/24 AS30304 64.207.202.0/24 AS30304 64.207.203.0/24 AS30304 64.207.204.0/24 AS30304 64.207.205.0/24 AS30304 64.207.206.0/24 AS30304 64.207.208.0/20 AS30304 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.6.80.0/24 AS13442 69.6.81.0/24 AS13442 71.19.134.0/23 AS3313 INET-AS I.NET S.p.A. 72.22.32.0/19 AS33150 72.22.61.0/24 AS33150 72.22.62.0/24 AS33150 76.77.32.0/19 AS2828 XO-AS15 - XO Communications 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 91.224.212.0/23 AS50935 VERTICALNET Vertical Concept SRL 101.1.1.0/24 AS38639 HANABI NTT Communications Corporation 101.2.173.0/24 AS38639 HANABI NTT Communications Corporation 101.50.56.0/24 AS38639 HANABI NTT Communications Corporation 101.53.100.0/24 AS38639 HANABI NTT Communications Corporation 101.55.225.0/24 AS38639 HANABI NTT Communications Corporation 101.78.2.0/24 AS38639 HANABI NTT Communications Corporation 101.96.8.0/24 AS38639 HANABI NTT Communications Corporation 101.99.97.0/24 AS38639 HANABI NTT Communications Corporation 101.99.100.0/24 AS38639 HANABI NTT Communications Corporation 101.110.116.0/24 AS38639 HANABI NTT Communications Corporation 101.203.172.0/24 AS38639 HANABI NTT Communications Corporation 101.234.78.0/24 AS38639 HANABI NTT Communications Corporation 101.251.0.0/24 AS38639 HANABI NTT Communications Corporation 102.0.0.0/8 AS237 MERIT-AS-14 - Merit Network Inc. 103.0.0.0/8 AS237 MERIT-AS-14 - Merit Network Inc. 104.0.0.0/8 AS237 MERIT-AS-14 - Merit Network Inc. 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 110.173.64.0/19 AS37963 CNNIC-ALIBABA-CN-NET-AP Alibaba (China) Technology Co., Ltd. 115.42.28.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.40.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.42.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.44.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.47.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.48.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.49.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.50.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.51.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.52.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.53.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.54.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.55.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.56.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.57.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.58.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.59.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.61.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.62.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.63.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 121.54.160.0/24 AS38890 121.54.161.0/24 AS38890 121.54.162.0/24 AS38890 121.54.163.0/24 AS38890 121.54.164.0/24 AS38890 121.54.166.0/24 AS38890 121.54.167.0/24 AS38890 142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc. 158.222.70.0/23 AS6137 SISNA - SISNA, Inc. 158.222.72.0/23 AS6137 SISNA - SISNA, Inc. 158.222.224.0/20 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.224.0/22 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.229.0/24 AS19864 O1COMM - O1 COMMUNICATIONS 179.0.0.0/8 AS237 MERIT-AS-14 - Merit Network Inc. 185.0.0.0/8 AS237 MERIT-AS-14 - Merit Network Inc. 188.191.248.0/21 AS50935 VERTICALNET Vertical Concept SRL 190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net 192.9.0.0/16 AS11479 BRM-SUN-AS - Sun Microsystems, Inc 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.101.46.0/24 AS6503 Axtel, S.A.B. de C.V. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.145.251.0/24 AS10026 PACNET Pacnet Global Ltd 192.154.32.0/19 AS81 NCREN - MCNC 192.154.64.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 193.193.166.0/24 AS12388 Cablesurf Backbone AS 193.193.167.0/24 AS12388 Cablesurf Backbone AS 193.193.168.0/24 AS12388 Cablesurf Backbone AS 196.2.224.0/22 AS24863 LINKdotNET-AS 196.6.108.0/24 AS5713 SAIX-NET 196.13.201.0/24 AS2018 TENET-1 196.13.202.0/24 AS2018 TENET-1 196.13.203.0/24 AS2018 TENET-1 196.13.204.0/24 AS2018 TENET-1 196.110.105.0/24 AS8513 SKYVISION SkyVision Network Services 196.202.224.0/21 AS8818 TELE Greenland Autonomous System 198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider 198.15.4.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.15.5.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.73.210.0/24 AS21570 ACI-1 - Accelerated Connections Inc. 198.74.38.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.39.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.40.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.97.72.0/21 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.96.0/19 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.240.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.99.241.0/24 AS11797 AC-NIELSEN-AS AC NIELSEN 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.214.0/24 AS21804 ACCESS-SK - Access Communications Co-operative Limited 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.169.0.0/16 AS803 SASKTEL - Saskatchewan Telecommunications 198.175.231.0/24 AS19262 VZGNI-TRANSIT - Verizon Online LLC 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 198.182.235.0/24 AS3356 LEVEL3 Level 3 Communications 199.16.32.0/19 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 199.121.0.0/16 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.123.16.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.185.130.0/23 AS19662 UNISERVE-ONLINE - Uniserve On Line 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.202.216.0/21 AS577 BACOM - Bell Canada 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC. 200.24.73.0/24 AS26061 Equant Colombia 200.24.78.0/26 AS3549 GBLX Global Crossing Ltd. 200.24.78.64/26 AS3549 GBLX Global Crossing Ltd. 202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000 202.9.55.0/24 AS2764 AAPT AAPT Limited 202.9.57.0/24 AS2764 AAPT AAPT Limited 202.20.108.0/23 AS17885 JKTXLNET-AS-AP PT Excelcomindo Pratama 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.66.128.0/18 AS9584 GENESIS-AP Diyixian.com Limited 202.66.160.0/19 AS9584 GENESIS-AP Diyixian.com Limited 202.66.160.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.66.176.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.66.184.0/24 AS9584 GENESIS-AP Diyixian.com Limited 202.66.186.0/24 AS9584 GENESIS-AP Diyixian.com Limited 202.66.188.0/24 AS9584 GENESIS-AP Diyixian.com Limited 202.66.189.0/24 AS9584 GENESIS-AP Diyixian.com Limited 202.66.190.0/24 AS9584 GENESIS-AP Diyixian.com Limited 202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited 202.86.252.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.133.37.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.146.186.0/24 AS23655 SNAP-NZ-AS Snap Internet Limited 202.150.227.0/24 AS17727 NAPINFO-AS-AP PT. NAP Info Lintas Nusa 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.130.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.133.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited 202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.149.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.150.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.181.32.0/24 AS4645 ASN-HKNET-AP HKNet Co. Ltd 203.18.156.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.22.78.0/24 AS18117 HARBOURMSP-AU-AP Harbour MSP Pty. Ltd 203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.27.123.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 203.30.26.0/23 AS3491 BTN-ASN - Beyond The Network America, Inc. 203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.112.111.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.113.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.114.0/24 AS4802 ASN-IINET iiNet Limited 203.112.116.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.117.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.118.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.119.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.120.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.121.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.127.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd. 203.142.219.0/24 AS45149 203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.10.232.0/21 AS33150 204.19.14.0/23 AS577 BACOM - Bell Canada 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc. 206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company 207.174.131.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.132.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.152.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.154.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.155.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.188.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.189.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.190.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.191.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW 208.73.160.0/24 AS32767 208.78.165.0/24 AS16565 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 208.92.196.0/22 AS10929 NETELLIGENT - Netelligent Hosting Services Inc. 208.92.199.0/24 AS26198 3MENATWORK - 3Men@Work Integrated Networks, Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.165.239.0/24 AS209 ASN-QWEST - Qwest Communications Company, LLC 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 209.213.1.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 209.213.4.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.10.235.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.10.236.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.21.196.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.201.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.202.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.206.0/23 AS12251 INVISION - Invision.com, Inc. 216.58.192.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.197.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc. 216.105.192.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.196.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.200.0/21 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.172.198.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.172.199.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 223.0.0.0/15 AS38639 HANABI NTT Communications Corporation 223.223.223.0/24 AS38639 HANABI NTT Communications Corporation Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

1 0

Weekly Routing Table Report
by Routing Analysis Role Account 04 Mar '11

04 Mar '11

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, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. 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 <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 05 Mar, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 349307 Prefixes after maximum aggregation: 157488 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 172148 Total ASes present in the Internet Routing Table: 36007 Prefixes per ASN: 9.70 Origin-only ASes present in the Internet Routing Table: 31031 Origin ASes announcing only one prefix: 14946 Transit ASes present in the Internet Routing Table: 4976 Transit-only ASes present in the Internet Routing Table: 122 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 375 Unregistered ASNs in the Routing Table: 164 Number of 32-bit ASNs allocated by the RIRs: 1169 Prefixes from 32-bit ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 258 Number of addresses announced to Internet: 2455757344 Equivalent to 146 /8s, 95 /16s and 226 /24s Percentage of available address space announced: 66.3 Percentage of allocated address space announced: 66.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 89.1 Total number of prefixes smaller than registry allocations: 144961 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 86769 Total APNIC prefixes after maximum aggregation: 29668 APNIC Deaggregation factor: 2.92 Prefixes being announced from the APNIC address blocks: 83555 Unique aggregates announced from the APNIC address blocks: 36074 APNIC Region origin ASes present in the Internet Routing Table: 4337 APNIC Prefixes per ASN: 19.27 APNIC Region origin ASes announcing only one prefix: 1198 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 594716448 Equivalent to 35 /8s, 114 /16s and 167 /24s Percentage of available APNIC address space announced: 75.4 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 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, 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: 140246 Total ARIN prefixes after maximum aggregation: 71637 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 110832 Unique aggregates announced from the ARIN address blocks: 44959 ARIN Region origin ASes present in the Internet Routing Table: 14236 ARIN Prefixes per ASN: 7.79 ARIN Region origin ASes announcing only one prefix: 5417 ARIN Region transit ASes present in the Internet Routing Table: 1476 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 787480704 Equivalent to 46 /8s, 240 /16s and 0 /24s Percentage of available ARIN address space announced: 62.6 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, 393216-394239 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, 173/8, 174/8, 184/8, 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: 82597 Total RIPE prefixes after maximum aggregation: 46884 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 75881 Unique aggregates announced from the RIPE address blocks: 49204 RIPE Region origin ASes present in the Internet Routing Table: 15386 RIPE Prefixes per ASN: 4.93 RIPE Region origin ASes announcing only one prefix: 7770 RIPE Region transit ASes present in the Internet Routing Table: 2391 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 478711936 Equivalent to 28 /8s, 136 /16s and 144 /24s Percentage of available RIPE address space announced: 77.1 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 196608-198655 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, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31972 Total LACNIC prefixes after maximum aggregation: 7376 LACNIC Deaggregation factor: 4.33 Prefixes being announced from the LACNIC address blocks: 30817 Unique aggregates announced from the LACNIC address blocks: 16093 LACNIC Region origin ASes present in the Internet Routing Table: 1434 LACNIC Prefixes per ASN: 21.49 LACNIC Region origin ASes announcing only one prefix: 433 LACNIC Region transit ASes present in the Internet Routing Table: 263 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 81347200 Equivalent to 4 /8s, 217 /16s and 66 /24s Percentage of available LACNIC address space announced: 53.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7507 Total AfriNIC prefixes after maximum aggregation: 1815 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 5903 Unique aggregates announced from the AfriNIC address blocks: 1957 AfriNIC Region origin ASes present in the Internet Routing Table: 433 AfriNIC Prefixes per ASN: 13.63 AfriNIC Region origin ASes announcing only one prefix: 128 AfriNIC Region transit ASes present in the Internet Routing Table: 96 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21862912 Equivalent to 1 /8s, 77 /16s and 154 /24s Percentage of available AfriNIC address space announced: 32.6 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2419 9501 891 Korea Telecom (KIX) 7545 1603 301 83 TPG Internet Pty Ltd 4755 1421 638 165 TATA Communications formerly 17974 1405 475 29 PT TELEKOMUNIKASI INDONESIA 24560 1120 323 185 Bharti Airtel Ltd., Telemedia 4808 1046 2142 294 CNCGROUP IP network: China169 9583 1045 77 488 Sify Limited 17488 940 161 102 Hathway IP Over Cable Interne 9829 898 764 46 BSNL National Internet Backbo 18101 878 115 139 Reliance Infocom Ltd Internet 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 6389 3683 3855 260 bellsouth.net, inc. 4323 2582 1109 403 Time Warner Telecom 19262 1829 4953 282 Verizon Global Networks 1785 1790 697 131 PaeTec Communications, Inc. 6478 1531 297 94 AT&T Worldnet Services 20115 1527 1534 650 Charter Communications 18566 1522 326 178 Covad Communications 7018 1364 6706 885 AT&T WorldNet Services 2386 1296 537 939 AT&T Data Communications Serv 11492 1288 236 70 Cable One 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 6830 514 1780 319 UPC Distribution Services 9198 470 267 15 Kazakhtelecom Data Network Ad 34984 466 98 146 BILISIM TELEKOM 3292 448 1996 389 TDC Tele Danmark 8866 442 133 23 Bulgarian Telecommunication C 20940 415 99 319 Akamai Technologies European 3320 406 7604 354 Deutsche Telekom AG 8551 405 355 38 Bezeq International 702 396 1800 310 UUNET - Commercial IP service 12479 394 577 6 Uni2 Autonomous System 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 10620 1382 257 165 TVCABLE BOGOTA 8151 1361 2700 363 UniNet S.A. de C.V. 28573 1221 961 83 NET Servicos de Comunicao S.A 6503 1174 354 73 AVANTEL, S.A. 7303 911 464 147 Telecom Argentina Stet-France 14420 644 56 93 CORPORACION NACIONAL DE TELEC 22047 541 310 15 VTR PUNTO NET S.A. 3816 514 225 96 Empresa Nacional de Telecomun 7738 479 922 30 Telecomunicacoes da Bahia S.A 11172 463 83 82 Servicios Alestra S.A de C.V 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 8452 795 445 11 TEDATA 24863 766 147 39 LINKdotNET AS number 15475 439 90 10 Nile Online 36992 301 271 14 Etisalat MISR 3741 266 987 228 The Internet Solution 33776 230 13 5 Starcomms Nigeria Limited 24835 222 78 10 RAYA Telecom - Egypt 29571 192 17 11 Ci Telecom Autonomous system 6713 187 191 17 Itissalat Al-MAGHRIB 16637 147 439 87 MTN Network Solutions 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 6389 3683 3855 260 bellsouth.net, inc. 4323 2582 1109 403 Time Warner Telecom 4766 2419 9501 891 Korea Telecom (KIX) 19262 1829 4953 282 Verizon Global Networks 1785 1790 697 131 PaeTec Communications, Inc. 7545 1603 301 83 TPG Internet Pty Ltd 6478 1531 297 94 AT&T Worldnet Services 20115 1527 1534 650 Charter Communications 18566 1522 326 178 Covad Communications 4755 1421 638 165 TATA Communications formerly Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2582 2179 Time Warner Telecom 1785 1790 1659 PaeTec Communications, Inc. 19262 1829 1547 Verizon Global Networks 4766 2419 1528 Korea Telecom (KIX) 7545 1603 1520 TPG Internet Pty Ltd 6478 1531 1437 AT&T Worldnet Services 17974 1405 1376 PT TELEKOMUNIKASI INDONESIA 18566 1522 1344 Covad Communications 4755 1421 1256 TATA Communications formerly 11492 1288 1218 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 1.5.0.0/16 38639 NTT Communications Corporatio 1.6.0.0/15 38639 NTT Communications Corporatio 1.8.0.0/16 38639 NTT Communications Corporatio 1.20.0.0/16 38639 NTT Communications Corporatio 1.32.0.0/16 38639 NTT Communications Corporatio 1.37.0.0/16 38639 NTT Communications Corporatio 1.187.0.0/16 38639 NTT Communications Corporatio 14.0.0.0/24 38639 NTT Communications Corporatio 14.0.1.0/24 38639 NTT Communications Corporatio 14.0.2.0/23 38639 NTT Communications Corporatio 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 /8:24 /9:10 /10:26 /11:73 /12:217 /13:446 /14:764 /15:1371 /16:11553 /17:5660 /18:9343 /19:18973 /20:24536 /21:25127 /22:33465 /23:31886 /24:182381 /25:1154 /26:1395 /27:713 /28:171 /29:9 /30:3 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2272 3683 bellsouth.net, inc. 18566 1500 1522 Covad Communications 6478 1485 1531 AT&T Worldnet Services 4323 1391 2582 Time Warner Telecom 10620 1273 1382 TVCABLE BOGOTA 11492 1245 1288 Cable One 7011 1057 1158 Citizens Utilities 1785 1055 1790 PaeTec Communications, Inc. 6503 956 1174 AVANTEL, S.A. 19262 941 1829 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:262 2:61 4:14 5:1 8:339 9:1 12:2029 13:1 14:423 15:15 16:3 17:8 20:9 23:1 24:1508 27:600 31:3 32:60 33:4 34:2 36:2 37:1 38:706 39:1 40:101 41:2295 42:13 44:3 46:686 47:4 49:164 50:174 52:13 55:3 56:2 57:41 58:857 59:477 60:384 61:1108 62:1022 63:1926 64:3850 65:2347 66:4323 67:1777 68:1067 69:2875 70:699 71:406 72:1997 73:1 74:2356 75:291 76:342 77:846 78:697 79:444 80:1058 81:791 82:522 83:463 84:636 85:1046 86:574 87:753 88:357 89:1568 90:169 91:3573 92:493 93:1053 94:1224 95:782 96:463 97:253 98:812 99:33 101:50 106:1 107:4 108:127 109:910 110:471 111:712 112:319 113:388 114:510 115:668 116:955 117:677 118:688 119:1045 120:255 121:701 122:1624 123:1043 124:1290 125:1258 128:266 129:165 130:172 131:562 132:108 133:20 134:219 135:49 136:211 137:146 138:295 139:118 140:486 141:203 142:374 143:386 144:487 145:51 146:435 147:203 148:638 149:273 150:166 151:229 152:299 153:180 154:3 155:376 156:178 157:343 158:127 159:378 160:311 161:210 162:278 163:155 164:486 165:345 166:501 167:409 168:728 169:157 170:758 171:69 172:2 173:1245 174:519 175:321 176:1 177:33 178:786 180:809 181:4 182:387 183:242 184:249 186:1033 187:812 188:906 189:1031 190:4580 192:5769 193:4792 194:3502 195:2953 196:1196 197:4 198:3576 199:3838 200:5577 201:1583 202:8235 203:8430 204:4108 205:2303 206:2652 207:3069 208:3901 209:3483 210:2638 211:1356 212:1927 213:1730 214:758 215:63 216:4843 217:1653 218:544 219:373 220:1152 221:473 222:319 223:104 End of report

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IPv6 Routing Recommendations.
by Rob Evans 03 Mar '11

03 Mar '11

All, You may remember that back in the mists of time (about a year ago) we had a document that updated RIPE-399 with some IPv6 routing recommendations. After the meeting last May, the authors were to go away and take out mention of any specific suggestions on filtering (e.g. /36). Over the past 12 months, Philip and I have been hard at work constantly refining this document to reflect the changing nature of the IPv6 routing table. Well, kind-of. Anyway, my laziness aside, appended is the document as it stands at the moment. Comments and discussion please! Rob RIPE Routing Working Group Recommendations on IPv6 Route Aggregation ==================================================================== Rob Evans Philip Smith Introduction ============ Recent discussion has shown there is a limited requirement to be able to advertise more specific prefixes from an IPv6 Provider Aggregatable (PA) allocation where a Local Internet Registry (LIR) contains several networks which are not interconnected, or for traffic engineering purposes. This document recommends such advertisements are limited in both length and scope. It is intended to supplement the working group's Recommendations on Route Aggregation [RIPE-399]. Background ========== The IPv6 address allocation and assignment policy for the RIPE region [V6-ALLOC] only allows LIRs to obtain more than the minimum PA allocation if they can demonstrate address utilisation that requires it. This fits with the address space management principle of conservation. However, as understood in the RIPE Routing Working Group's Recommendations on Route Aggregation [RIPE-399], there are occasionally requirements for the advertisement of more specific routes from within an allocation. With a few ISPs currently filtering at the minimum PA allocation (/32) within the relevant address ranges, this can cause significant difficulties for some networks wishing to deploy IPv6. Some reasons for wanting to advertise multiple prefixes from a PA allocation could be: - The LIR has several networks that are not interconnected. - Traffic engineering: A single prefix that covers an LIR's entire customer base may attract too much traffic over a single peering link This document is only concerned with IPv6 Provider Aggregatable (PA) allocations, and does not discuss Provider Independent (PI) prefixes. Recommendation ============== It is suggested that prefix filters allow for prudent subdivision of an IPv6 allocation. The operator community will ultimately decide what degree of subdivision is supportable, but the majority of ISPs accept prefixes up to a length of /48 within PA space. Advertisement of more specific prefixes should not be used unless absolutely necessary and, where sensible, a covering aggregate should also be advertised. Further, LIRs should use BGP methods such as NO_EXPORT [RFC-1997], [AS-PATHLIMIT], or provider-specific communities, as described in [RIPE-399] to limit the propagation of more specific prefixes in the routing table. Discussion ========== There is a valid need for some LIRs to advertise more than one IPv6 PA prefix. As either obtaining more address space and advertising more /32 prefixes, or advertising more specific prefixes within an already allocated /32 have the same impact on the routing table, it is suggested that the latter approach is taken to prevent address space wastage. It is understood that this may not cover all possibilities. There may be circumstances where sites will have to consider the suitability of Provider Independent addresses, or LIRs may have to consider mechanisms of obtaining more than a /32 of Provider Aggregatable space. References ========== [V6-ALLOC] http://www.ripe.net/ripe/docs/ipv6policy.html [RIPE-399] http://www.ripe.net/ripe/docs/ripe-399 [RFC-1997] http://www.rfc-editor.org/rfc/rfc1997.txt [AS-PATHLIMIT] http://tools.ietf.org/html/draft-ietf-idr-as-pathlimit-03 Work in Progress.

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New IPv4 block allocated to RIPE NCC
by Andrea Cima 01 Mar '11

01 Mar '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 [Apologies for duplicate mails] Dear Colleagues, The RIPE NCC has received the IPv4 address range 185/8 from the IANA. This is the final allocation of IPv4 address space that the RIPE NCC will receive from the IANA as stated in ripe-436, "Global Policy for the Allocation of the Remaining IPv4 Address Space". The minimum allocation size for this /8 has been set at /22. You may wish to adjust any filters you have in place accordingly. More information on the IP address space administered by the RIPE NCC can be found on our website at: https://www.ripe.net/ripe/docs/ripe-ncc-managed-address-space.html Additionally, please note that three "pilot" prefixes will be announced from this /8. The prefixes are: 185.0.0.0/16 185.1.0.0/21 185.1.24.0/24 They all originate in AS12654. The pingable addresses will be: 185.0.0.1 185.1.0.1 185.1.24.1 More information on this activity is available in the document "De-Bogonising New Address Blocks", which can be found at: http://www.ripe.net/ripe/docs/ripe-351.html Kind regards, Andrea Cima Registration Services Manager RIPE NCC -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.11 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAk1Pu9kACgkQXOgsmPkFrjM9FgCgsaT8cFxK0YKTFUFzj41L0PQT N1AAoIgmL1zUY8JjkCSa05xt0t8oppgP =woX5 -----END PGP SIGNATURE-----

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Read on RIPE Labs: Network Complexity and How to Deal with it
by Mirjam Kuehne 01 Mar '11

01 Mar '11

[apologies for duplicates] Dear colleagues, Prompted by a panel discussion at the RIPE 61 Meeting, this article by Michael Behringer describes the most significant implications of network complexity and suggests ways to deal with it: http://labs.ripe.net/Members/mbehring/network-complexity-and-how-to-deal-wi… This is a topic that requires more work and a lot of input from network operators. We hope you will help to advance this subject. Kind Regards, Mirjam Kuehne RIPE NCC

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