[routing-wg] Weekly Global IPv4 Routing Table Report

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats@lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz@gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 19 Apr, 2025 IPv4 BGP Table (Global) as seen at Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 979684 Prefixes after maximum aggregation (per Origin AS): 376769 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478232 Number of IPv4 prefixes with a valid ROA: 535006 Number of IPv4 prefixes with an invalid ROA: 1209 Number of IPv4 prefixes with no ROA: 443469 Total ASes present in the Internet Routing Table: 76869 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65806 Origin ASes announcing only one prefix: 26895 Transit ASes present in the Internet Routing Table: 11063 Transit-only ASes present in the Internet Routing Table: 542 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 130 Max AS path prepend of ASN ( 37447) 125 Prefixes from unregistered ASNs in the Routing Table: 1058 Number of instances of unregistered ASNs: 1059 Number of 32-bit ASNs allocated by the RIRs: 46241 Number of 32-bit ASNs visible in the Routing Table: 38174 Prefixes from 32-bit ASNs in the Routing Table: 201097 Number of bogon 32-bit ASNs visible in the Routing Table: 30 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 441 Number of addresses announced to Internet: 3107361408 Equivalent to 185 /8s, 54 /16s and 146 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 321121 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257133 Total APNIC prefixes after maximum aggregation: 77178 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 248853 Unique aggregates announced from the APNIC address blocks: 103000 APNIC Region origin ASes present in the Internet Routing Table: 14637 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4452 APNIC Region transit ASes present in the Internet Routing Table: 1969 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 60 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10115 Number of APNIC addresses announced to Internet: 749110272 Equivalent to 44 /8s, 166 /16s and 132 /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, 131072-155961 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: 288944 Total ARIN prefixes after maximum aggregation: 129437 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 289940 Unique aggregates announced from the ARIN address blocks: 137883 ARIN Region origin ASes present in the Internet Routing Table: 19266 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7036 ARIN Region transit ASes present in the Internet Routing Table: 1997 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5199 Number of ARIN addresses announced to Internet: 1349399552 Equivalent to 80 /8s, 110 /16s and 52 /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, 393216-402332 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, 54/8, 55/8, 56/8, 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: 273477 Total RIPE prefixes after maximum aggregation: 133471 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 271308 Unique aggregates announced from the RIPE address blocks: 173827 RIPE Region origin ASes present in the Internet Routing Table: 28904 RIPE Prefixes per ASN: 9.39 RIPE Region origin ASes announcing only one prefix: 12046 RIPE Region transit ASes present in the Internet Routing Table: 4005 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 44 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12398 Number of RIPE addresses announced to Internet: 731874176 Equivalent to 43 /8s, 159 /16s and 131 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 123859 Total LACNIC prefixes after maximum aggregation: 29303 LACNIC Deaggregation factor: 4.23 Prefixes being announced from the LACNIC address blocks: 120451 Unique aggregates announced from the LACNIC address blocks: 48849 LACNIC Region origin ASes present in the Internet Routing Table: 11237 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2505 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9186 Number of LACNIC addresses announced to Internet: 171789312 Equivalent to 10 /8s, 61 /16s and 76 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35213 Total AfriNIC prefixes after maximum aggregation: 6751 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 48691 Unique aggregates announced from the AfriNIC address blocks: 14294 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.47 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 130 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1276 Number of AfriNIC addresses announced to Internet: 104967168 Equivalent to 6 /8s, 65 /16s and 172 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 9808 10354 8754 94 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4781 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4316 530 278 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2860 850 539 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2396 11525 634 KIXS-AS-KR Korea Telecom, KR 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13207 39693 4098 AMAZON-02, US 11492 4694 311 587 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3457 8760 924 COGENT-174, US 22773 3395 3033 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 3005 1257 2216 AKAMAI-AS, US 396982 2957 3650 468 GOOGLE-CLOUD-PLATFORM, US 36352 2681 220 823 AS-COLOCROSSING, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7703 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3935 3395 129 AKAMAI-ASN1, NL 9009 3773 325 1960 M247, RO 12389 3074 2303 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2363 360 585 TELLCOM-AS, TR 212238 2097 148 1542 CDNEXT, GB 8452 1640 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1444 95 746 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11957 3243 591 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2510 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1191 371 22 Telefonica del Peru S.A.A., PE 11664 1183 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 374 163 Axtel, S.A.B. de C.V., MX Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1743 607 31 RAYA-AS, EG 24863 1647 389 16 LINKdotNET-AS, EG 29571 1588 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 539 82 3 KENET-AS, KE Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13207 39693 4098 AMAZON-02, US 8151 11957 3243 591 UNINET, MX 9808 10354 8754 94 CHINAMOBILE-CN China Mobile Communication 12479 7703 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 4538 4781 4192 76 ERX-CERNET-BKB China Education and Resear 11492 4694 311 587 CABLEONE, US 9498 4316 530 278 BBIL-AP BHARTI Airtel Ltd., IN 20940 3935 3395 129 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11957 11366 UNINET, MX 9808 10354 10260 CHINAMOBILE-CN China Mobile Communications Grou 12479 7703 7558 UNI2-AS, ES 7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 4538 4781 4705 ERX-CERNET-BKB China Education and Research Net 11492 4694 4107 CABLEONE, US 9498 4316 4038 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN 20940 3935 3806 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US Complete listing at https://thyme.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 /8:16 /9:16 /10:41 /11:93 /12:300 /13:582 /14:1216 /15:2139 /16:13932 /17:8350 /18:13824 /19:24824 /20:44522 /21:52182 /22:112359 /23:101639 /24:602849 /25:800 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6624 7703 UNI2-AS, ES 8151 6163 11957 UNINET, MX 11492 3531 4694 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2534 3395 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2355 13207 AMAZON-02, US 30036 2216 2555 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3522 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1708 2:1514 3:617 4:10 5:4593 6:163 7:6 8:1563 9:1 11:172 12:1371 13:353 14:2552 15:352 16:283 17:368 18:923 20:511 21:4 22:188 23:7434 24:2750 25:2 27:2692 29:19 31:3211 32:39 34:80 35:204 36:2410 37:4661 38:8924 39:905 40:166 41:4214 42:950 43:2546 44:378 45:18564 46:5000 47:291 49:1916 50:1891 51:591 52:1555 54:299 55:1091 56:11 57:254 58:2135 59:1359 60:1171 61:2788 62:2912 63:1827 64:5476 65:2186 66:4622 67:3055 68:1116 69:3838 70:1064 71:614 72:2835 74:2789 75:1590 76:616 77:2744 78:1876 79:1749 80:2211 81:2036 82:3185 83:1434 84:1850 85:3411 86:1051 87:2398 88:1281 89:4313 90:784 91:8324 92:2716 93:2889 94:4070 95:4339 96:1389 97:313 98:997 99:644 100:72 101:1174 102:3730 103:32237 104:4815 105:754 106:985 107:2614 108:1212 109:4083 110:2236 111:3368 112:2051 113:1528 114:1969 115:2139 116:2034 117:2738 118:2371 119:1919 120:1893 121:1420 122:2758 123:2168 124:1616 125:2892 126:91 128:1563 129:962 130:1281 131:1914 132:787 133:451 134:1525 135:331 136:1304 137:1156 138:2892 139:1596 140:1587 141:1485 142:1905 143:1642 144:1083 145:513 146:2157 147:2111 148:2663 149:2918 150:1241 151:1752 152:2105 153:502 154:8020 155:1611 156:3208 157:1885 158:1289 159:2443 160:3555 161:1897 162:3742 163:2061 164:1696 165:2201 166:1449 167:1881 168:4058 169:792 170:4900 171:1004 172:4475 173:3229 174:905 175:1291 176:3682 177:4696 178:3744 179:2278 180:2591 181:4063 182:3367 183:1815 184:2090 185:21527 186:5067 187:4430 188:4201 189:4191 190:9624 191:1476 192:11254 193:9442 194:7771 195:5521 196:3286 197:3704 198:6195 199:8457 200:8212 201:6277 202:10571 203:10539 204:4542 205:3678 206:4633 207:3563 208:4194 209:5180 210:4818 211:2634 212:4535 213:3769 214:1026 215:48 216:6602 217:3114 218:1386 219:538 220:2088 221:1059 222:847 223:2342 End of report