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Weekly Global IPv4 Routing Table Report
From: Routing Table Analysis Role Account via NANOG <nanog () lists nanog org>
Date: Sat, 11 Oct 2025 04:02:23 +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 11 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: 1009133 Prefixes after maximum aggregation (per Origin AS): 391938 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 497192 Number of IPv4 prefixes with a valid ROA: 572562 Number of IPv4 prefixes with an invalid ROA: 1558 Number of IPv4 prefixes with no ROA: 434948 Total ASes present in the Internet Routing Table: 77422 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66519 Origin ASes announcing only one prefix: 27083 Transit ASes present in the Internet Routing Table: 10903 Transit-only ASes present in the Internet Routing Table: 540 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: 1016 Number of instances of unregistered ASNs: 1054 Number of 32-bit ASNs allocated by the RIRs: 47679 Number of 32-bit ASNs visible in the Routing Table: 39109 Prefixes from 32-bit ASNs in the Routing Table: 212945 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: 453 Number of addresses announced to Internet: 3111947264 Equivalent to 185 /8s, 124 /16s and 140 /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: 329017 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270360 Total APNIC prefixes after maximum aggregation: 80505 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 260252 Unique aggregates announced from the APNIC address blocks: 105922 APNIC Region origin ASes present in the Internet Routing Table: 14850 APNIC Prefixes per ASN: 17.53 APNIC Region origin ASes announcing only one prefix: 4531 APNIC Region transit ASes present in the Internet Routing Table: 1953 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10392 Number of APNIC addresses announced to Internet: 752275584 Equivalent to 44 /8s, 214 /16s and 208 /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: 297245 Total ARIN prefixes after maximum aggregation: 134392 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 298046 Unique aggregates announced from the ARIN address blocks: 143867 ARIN Region origin ASes present in the Internet Routing Table: 19340 ARIN Prefixes per ASN: 15.41 ARIN Region origin ASes announcing only one prefix: 7093 ARIN Region transit ASes present in the Internet Routing Table: 1949 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5356 Number of ARIN addresses announced to Internet: 1352451072 Equivalent to 80 /8s, 156 /16s and 196 /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: 280582 Total RIPE prefixes after maximum aggregation: 138821 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280121 Unique aggregates announced from the RIPE address blocks: 181062 RIPE Region origin ASes present in the Internet Routing Table: 29071 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12091 RIPE Region transit ASes present in the Internet Routing Table: 3950 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: 12752 Number of RIPE addresses announced to Internet: 732564096 Equivalent to 43 /8s, 170 /16s and 10 /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: 125048 Total LACNIC prefixes after maximum aggregation: 30672 LACNIC Deaggregation factor: 4.08 Prefixes being announced from the LACNIC address blocks: 121242 Unique aggregates announced from the LACNIC address blocks: 49345 LACNIC Region origin ASes present in the Internet Routing Table: 11311 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2504 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9277 Number of LACNIC addresses announced to Internet: 170577408 Equivalent to 10 /8s, 42 /16s and 206 /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: 34882 Total AfriNIC prefixes after maximum aggregation: 6859 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 49019 Unique aggregates announced from the AfriNIC address blocks: 16594 AfriNIC Region origin ASes present in the Internet Routing Table: 1968 AfriNIC Prefixes per ASN: 24.91 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1332 Number of AfriNIC addresses announced to Internet: 103835392 Equivalent to 6 /8s, 48 /16s and 103 /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 13798 8759 117 CHINAMOBILE-CN China Mobile Communication 7545 6185 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4956 4193 77 ERX-CERNET-BKB China Education and Resear 9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3312 1869 100 VNPT-AS-VN VNPT Corp, VN 56046 3138 827 182 CMNET-JIANGSU-AP China Mobile communicati 24560 2930 863 500 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2474 512 1596 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 14309 40997 5362 AMAZON-02, US 11492 4756 321 791 CABLEONE, US 22773 4019 3068 361 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3684 1320 82 SHAW, CA 396982 3272 4824 464 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 174 3168 8767 804 COGENT-174, US 4155 3117 242 1743 USDA-1, US 16625 2875 1224 2156 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 7400 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3986 374 2246 M247, RO 20940 3897 3395 126 AKAMAI-ASN1, NL 12389 3148 2315 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2509 180 1822 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 2022 221 991 HOSTROYALE, IN 8452 1654 1852 14 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 12340 3253 591 UNINET, MX 10620 3477 468 1087 Telmex Colombia S.A., CO 13999 2515 508 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1064 68 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2486 56 TIM SA, BR 11172 907 148 66 Alestra, S. de R.L. 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 1766 600 27 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1251 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 15399 536 55 50 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 14309 40997 5362 AMAZON-02, US 9808 13798 8759 117 CHINAMOBILE-CN China Mobile Communication 8151 12340 3253 591 UNINET, MX 12479 7400 1711 149 UNI2-AS, ES 7545 6185 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4956 4193 77 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4756 321 791 CABLEONE, US 9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN 22773 4019 3068 361 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 13798 13681 CHINAMOBILE-CN China Mobile Communications Grou 8151 12340 11749 UNINET, MX 12479 7400 7251 UNI2-AS, ES 7545 6185 5581 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4956 4879 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 9498 4472 4159 BBIL-AP BHARTI Airtel Ltd., IN 11492 4756 3965 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 7155 3859 3774 VIASAT-SP-BACKBONE, 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 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 3356 LEVEL3, US 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: 21859 ZEN-ECN, US 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 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 /13:582 /14:1198 /15:2123 /16:13804 /17:8281 /18:13547 /19:24893 /20:45198 /21:52400 /22:112964 /23:104261 /24:628633 /25:785 /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 6581 12340 UNINET, MX 12479 6365 7400 UNI2-AS, ES 11492 3569 4756 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3684 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2523 4019 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2395 14309 AMAZON-02, US 30036 2299 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3477 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1786 2:1516 3:941 4:10 5:4794 6:170 7:6 8:1550 9:6 11:172 12:1242 13:565 14:2686 15:401 16:304 17:388 18:909 20:574 21:4 22:188 23:7896 24:2654 25:2 27:2735 29:19 31:3360 32:32 33:1 34:81 35:275 36:4453 37:4549 38:9471 39:1100 40:470 41:4367 42:944 43:2715 44:387 45:19140 46:5183 47:369 49:2078 50:2057 51:597 52:1592 54:359 55:1188 56:11 57:285 58:2205 59:1370 60:1190 61:2925 62:3087 63:1766 64:5675 65:2135 66:5071 67:3114 68:1214 69:4001 70:1048 71:630 72:2991 74:2836 75:1503 76:602 77:2775 78:1896 79:1754 80:2261 81:2129 82:3457 83:1473 84:1991 85:3531 86:1102 87:2389 88:1327 89:4511 90:807 91:8383 92:2811 93:2979 94:4174 95:4500 96:1474 97:312 98:948 99:753 100:71 101:1221 102:4137 103:32243 104:5459 105:777 106:895 107:2666 108:1218 109:4223 110:2252 111:3839 112:2667 113:1588 114:2067 115:2266 116:2075 117:3024 118:2536 119:2015 120:2311 121:1536 122:2826 123:2260 124:1729 125:2916 126:125 128:1583 129:969 130:1380 131:2151 132:792 133:462 134:1620 135:363 136:1489 137:1189 138:2822 139:1590 140:1696 141:1547 142:2109 143:2095 144:1262 145:628 146:2190 147:2132 148:2743 149:2926 150:1273 151:2608 152:2174 153:576 154:7890 155:2115 156:3295 157:1974 158:1432 159:2609 160:3608 161:1989 162:3952 163:2291 164:1951 165:2548 166:1570 167:2107 168:3841 169:779 170:5387 171:1023 172:4461 173:3418 174:908 175:1339 176:3812 177:4759 178:4292 179:2277 180:2703 181:4252 182:3747 183:2319 184:2063 185:21645 186:5384 187:4711 188:4376 189:4396 190:9680 191:1546 192:11409 193:9483 194:7798 195:5587 196:3299 197:3248 198:6234 199:8801 200:8209 201:6341 202:10673 203:10537 204:4622 205:3705 206:4437 207:3719 208:4281 209:5372 210:4953 211:2774 212:4844 213:3897 214:1037 215:52 216:6943 217:3356 218:1627 219:568 220:2189 221:1249 222:884 223:3063 End of report _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog () lists nanog org/message/4FWYX5T4KZQWT27OGBIWRC4RRN3S3IKY/
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