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Weekly Global IPv4 Routing Table Report
From: Routing Table Analysis Role Account via NANOG <nanog () lists nanog org>
Date: Sat, 25 Oct 2025 04:03:18 +1000 (AEST)
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 25 Oct, 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: 1013536 Prefixes after maximum aggregation (per Origin AS): 393466 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 498797 Number of IPv4 prefixes with a valid ROA: 449070 Number of IPv4 prefixes with an invalid ROA: 1360 Number of IPv4 prefixes with no ROA: 563106 Total ASes present in the Internet Routing Table: 77482 Prefixes per ASN: 13.08 Origin-only ASes present in the Internet Routing Table: 66552 Origin ASes announcing only one prefix: 27123 Transit ASes present in the Internet Routing Table: 10930 Transit-only ASes present in the Internet Routing Table: 538 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 57 Max AS path prepend of ASN ( 37447) 53 Prefixes from unregistered ASNs in the Routing Table: 979 Number of instances of unregistered ASNs: 1017 Number of 32-bit ASNs allocated by the RIRs: 47809 Number of 32-bit ASNs visible in the Routing Table: 39198 Prefixes from 32-bit ASNs in the Routing Table: 214172 Number of bogon 32-bit ASNs visible in the Routing Table: 104 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3112481792 Equivalent to 185 /8s, 132 /16s and 180 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 331345 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 271460 Total APNIC prefixes after maximum aggregation: 81153 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 260877 Unique aggregates announced from the APNIC address blocks: 106102 APNIC Region origin ASes present in the Internet Routing Table: 14872 APNIC Prefixes per ASN: 17.54 APNIC Region origin ASes announcing only one prefix: 4547 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10417 Number of APNIC addresses announced to Internet: 752266624 Equivalent to 44 /8s, 214 /16s and 173 /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: 299645 Total ARIN prefixes after maximum aggregation: 135017 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300473 Unique aggregates announced from the ARIN address blocks: 144676 ARIN Region origin ASes present in the Internet Routing Table: 19365 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7095 ARIN Region transit ASes present in the Internet Routing Table: 1950 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5386 Number of ARIN addresses announced to Internet: 1352400384 Equivalent to 80 /8s, 155 /16s and 254 /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: 280817 Total RIPE prefixes after maximum aggregation: 139037 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280907 Unique aggregates announced from the RIPE address blocks: 181512 RIPE Region origin ASes present in the Internet Routing Table: 29087 RIPE Prefixes per ASN: 9.66 RIPE Region origin ASes announcing only one prefix: 12091 RIPE Region transit ASes present in the Internet Routing Table: 3952 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12775 Number of RIPE addresses announced to Internet: 733258368 Equivalent to 43 /8s, 180 /16s and 162 /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: 125493 Total LACNIC prefixes after maximum aggregation: 30705 LACNIC Deaggregation factor: 4.09 Prefixes being announced from the LACNIC address blocks: 121594 Unique aggregates announced from the LACNIC address blocks: 49424 LACNIC Region origin ASes present in the Internet Routing Table: 11313 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2528 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9282 Number of LACNIC addresses announced to Internet: 170681088 Equivalent to 10 /8s, 44 /16s and 99 /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: 35142 Total AfriNIC prefixes after maximum aggregation: 6883 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 49263 Unique aggregates announced from the AfriNIC address blocks: 16710 AfriNIC Region origin ASes present in the Internet Routing Table: 1975 AfriNIC Prefixes per ASN: 24.94 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 57 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1338 Number of AfriNIC addresses announced to Internet: 103654656 Equivalent to 6 /8s, 45 /16s and 165 /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 13382 8760 120 CHINAMOBILE-CN China Mobile Communication 7545 6129 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4959 4193 77 ERX-CERNET-BKB China Education and Resear 9498 4480 537 314 BBIL-AP BHARTI Airtel Ltd., IN 7552 3983 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3310 1869 99 VNPT-AS-VN VNPT Corp, VN 56046 3236 827 182 CMNET-JIANGSU-AP China Mobile communicati 24560 2937 863 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2506 516 1611 HUTCHISON-AS-AP HGC Global Communications 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 14366 41104 5384 AMAZON-02, US 11492 4772 316 803 CABLEONE, US 22773 4288 3086 367 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3860 286 85 VIASAT-SP-BACKBONE, US 6327 3686 1320 82 SHAW, CA 396982 3278 4826 469 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3129 235 1750 USDA-1, US 174 3003 8766 829 COGENT-174, US 16625 2877 1225 2155 AKAMAI-AS, 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 7352 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3989 377 2273 M247, RO 20940 3906 3395 126 AKAMAI-ASN1, NL 12389 3156 2315 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2501 176 1810 CDNEXT, GB 34984 2416 363 577 TELLCOM-AS, TR 203020 1721 205 1005 HOSTROYALE, IN 8452 1675 1852 13 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12434 3271 579 UNINET, MX 10620 3456 463 1099 Telmex Colombia S.A., CO 13999 2510 510 349 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1280 371 23 Telefonica del Peru S.A.A., PE 22884 1059 67 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1024 2486 56 TIM SA, BR 18881 913 1127 31 TELEFONICA BRASIL S.A, BR 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 1925 630 32 RAYA-AS, EG 36992 1513 1498 386 ETISALAT-MISR, EG 24863 1263 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 36935 1101 521 44 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 575 82 3 KENET-AS, KE 15399 547 57 56 WANANCHI-, 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 14366 41104 5384 AMAZON-02, US 9808 13382 8760 120 CHINAMOBILE-CN China Mobile Communication 8151 12434 3271 579 UNINET, MX 12479 7352 1711 149 UNI2-AS, ES 7545 6129 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4959 4193 77 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4772 316 803 CABLEONE, US 9498 4480 537 314 BBIL-AP BHARTI Airtel Ltd., IN 22773 4288 3086 367 ASN-CXA-ALL-CCI-22773-RDC, US Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13382 13262 CHINAMOBILE-CN China Mobile Communications Grou 8151 12434 11855 UNINET, MX 12479 7352 7203 UNI2-AS, ES 7545 6129 5537 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4959 4882 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 9498 4480 4166 BBIL-AP BHARTI Airtel Ltd., IN 11492 4772 3969 CABLEONE, US 7552 3983 3955 VIETEL-AS-AP Viettel Group, VN 22773 4288 3921 ASN-CXA-ALL-CCI-22773-RDC, US 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 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 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /9:14 /10:41 /11:93 /12:300 /13:581 /14:1196 /15:2124 /16:13804 /17:8310 /18:13571 /19:24941 /20:45274 /21:52560 /22:113276 /23:104754 /24:631897 /25:784 /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 8151 6653 12434 UNINET, MX 12479 6311 7352 UNI2-AS, ES 11492 3586 4772 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3474 3686 SHAW, CA 7155 2819 3860 VIASAT-SP-BACKBONE, US 22773 2627 4288 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2426 14366 AMAZON-02, US 30036 2295 2637 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3456 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1796 2:1534 3:947 4:10 5:4821 6:170 7:6 8:1536 9:6 11:172 12:1240 13:543 14:2693 15:402 16:303 17:387 18:907 20:579 21:4 22:188 23:8058 24:2561 25:2 27:2730 29:19 31:3351 32:33 33:1 34:84 35:278 36:4501 37:4553 38:9547 39:1099 40:472 41:4382 42:949 43:2738 44:397 45:19207 46:5191 47:373 49:2099 50:2048 51:598 52:1629 54:355 55:1058 56:11 57:290 58:2193 59:1362 60:1190 61:2925 62:3095 63:1764 64:5842 65:2135 66:5621 67:3142 68:1476 69:4118 70:1044 71:631 72:2990 74:2866 75:1509 76:601 77:2771 78:1901 79:1751 80:2262 81:2140 82:3480 83:1477 84:1994 85:3578 86:1098 87:2384 88:1333 89:4522 90:812 91:8394 92:2817 93:2979 94:4168 95:4499 96:1474 97:313 98:948 99:754 100:71 101:1221 102:4186 103:32194 104:5453 105:768 106:897 107:2776 108:1212 109:4232 110:2254 111:3891 112:2726 113:1594 114:2073 115:2205 116:2091 117:3036 118:2527 119:2031 120:2349 121:1539 122:2829 123:2262 124:1728 125:2917 126:124 128:1572 129:968 130:1442 131:2173 132:798 133:461 134:1623 135:365 136:1488 137:1201 138:2823 139:1578 140:1696 141:1555 142:2214 143:2090 144:1289 145:629 146:2186 147:2132 148:2758 149:2896 150:1286 151:2625 152:2218 153:581 154:7963 155:2195 156:3217 157:1992 158:1452 159:2610 160:3624 161:2003 162:3977 163:2304 164:1950 165:2556 166:1522 167:2113 168:3807 169:779 170:5402 171:1059 172:4466 173:3441 174:906 175:1335 176:3761 177:4749 178:4325 179:2271 180:2751 181:4305 182:3750 183:2351 184:2067 185:21645 186:5372 187:4697 188:4389 189:4429 190:9748 191:1578 192:11415 193:9501 194:7846 195:5593 196:3275 197:3243 198:6269 199:8846 200:8233 201:6367 202:10688 203:10551 204:4657 205:3698 206:4399 207:3877 208:4287 209:5424 210:4943 211:2777 212:4928 213:3926 214:1039 215:53 216:7138 217:3355 218:1628 219:572 220:2198 221:1258 222:886 223:3122 End of report _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog () lists nanog org/message/OBXXTO652BR2ISKQMHCJAU2YSDM2GAAB/
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