IPv4 R&E Routing Table Report 21:10 GMT Wed 21 Jan, 2026 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 1027414 Prefixes after maximum aggregation (per Origin AS): 395176 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507472 Number of IPv4 prefixes with a valid ROA: 613101 Number of IPv4 prefixes with an invalid ROA: 108 Number of IPv4 prefixes with no ROA: 414205 Total ASes present in the Internet Routing Table: 77799 Prefixes per ASN: 13.21 Origin-only ASes present in the Internet Routing Table: 66583 Origin ASes announcing only one prefix: 27195 Transit ASes present in the Internet Routing Table: 11216 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 20 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1006 Number of instances of unregistered ASNs: 1048 Number of 32-bit ASNs allocated by the RIRs: 48441 Number of 32-bit ASNs visible in the Routing Table: 39684 Prefixes from 32-bit ASNs in the Routing Table: 220214 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 475 Number of addresses announced to Internet: 3106619904 Equivalent to 185 /8s, 43 /16s and 66 /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: 334531 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279784 Total APNIC prefixes after maximum aggregation: 81946 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 266091 Unique aggregates announced from the APNIC address blocks: 107085 APNIC Region origin ASes present in the Internet Routing Table: 15011 APNIC Prefixes per ASN: 17.73 APNIC Region origin ASes announcing only one prefix: 4594 APNIC Region transit ASes present in the Internet Routing Table: 2005 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10576 Number of APNIC addresses announced to Internet: 753612288 Equivalent to 44 /8s, 235 /16s and 54 /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: 301264 Total ARIN prefixes after maximum aggregation: 135291 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301113 Unique aggregates announced from the ARIN address blocks: 146208 ARIN Region origin ASes present in the Internet Routing Table: 19401 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7070 ARIN Region transit ASes present in the Internet Routing Table: 1986 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5453 Number of ARIN addresses announced to Internet: 1344708608 Equivalent to 80 /8s, 38 /16s and 160 /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: 282895 Total RIPE prefixes after maximum aggregation: 139862 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284750 Unique aggregates announced from the RIPE address blocks: 184564 RIPE Region origin ASes present in the Internet Routing Table: 29125 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12105 RIPE Region transit ASes present in the Internet Routing Table: 4060 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12928 Number of RIPE addresses announced to Internet: 733978368 Equivalent to 43 /8s, 191 /16s and 159 /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: 125933 Total LACNIC prefixes after maximum aggregation: 30471 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121762 Unique aggregates announced from the LACNIC address blocks: 49737 LACNIC Region origin ASes present in the Internet Routing Table: 11349 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2569 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9348 Number of LACNIC addresses announced to Internet: 170604800 Equivalent to 10 /8s, 43 /16s and 57 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36532 Total AfriNIC prefixes after maximum aggregation: 6925 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53222 Unique aggregates announced from the AfriNIC address blocks: 19471 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 26.39 AfriNIC Region origin ASes announcing only one prefix: 745 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103430144 Equivalent to 6 /8s, 42 /16s and 56 /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 13521 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6027 833 574 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4690 543 342 BBIL-AP BHARTI Airtel Ltd., IN 18403 4427 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4052 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3730 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3414 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3322 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3154 198 613 LCS-AS-AP LARUS Limited, HK 24560 2958 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13982 38738 5445 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4635 308 1031 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3697 1321 70 SHAW - Shaw Communications, CA 396982 3329 4868 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3144 54729 2395 DNIC-AS-00749 - United States Department 174 3137 8766 839 COGENT-174 - Cogent Communications, LLC, 16625 2942 1272 2167 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2696 222 898 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7239 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3928 3393 113 AKAMAI-ASN1, NL 9009 3910 365 2236 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2561 182 1858 CDNEXT, GB 34984 2426 372 578 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 203020 1612 243 784 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12698 3318 602 UNINET, MX 10620 3440 457 1107 Telmex Colombia S.A., CO 13999 2483 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 11664 1396 278 31 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1983 646 33 RAYA-AS, EG 36992 1841 1532 339 ETISALAT-MISR, EG 24863 1280 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1144 522 45 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 328608 570 53 164 Africa-on-Cloud-AS, ZA Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13982 38738 5445 AMAZON-02 - Amazon.com, Inc., US 9808 13521 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12698 3318 602 UNINET, MX 12479 7239 1711 149 UNI2-AS, ES 7545 6027 833 574 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4780 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4690 543 342 BBIL-AP BHARTI Airtel Ltd., IN 11492 4635 308 1031 CABLEONE - CABLE ONE, INC., US 18403 4427 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13521 13401 CHINAMOBILE-CN China Mobile Communications Grou 8151 12698 12096 UNINET, MX 12479 7239 7090 UNI2-AS, ES 7545 6027 5453 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4780 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4427 4403 FPT-AS-AP FPT Telecom Company, VN 9498 4690 4348 BBIL-AP BHARTI Airtel Ltd., IN 7552 4052 4023 VIETEL-AS-AP Viettel Group, VN 20940 3928 3815 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 5.182.62.0/24 Origin: 214476 CANUS, CH 5.182.62.0/24 Transit: 13030 INIT7, CH 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat Complete listing at https://bgp.nsrc.org/REN/AARNET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:40 /11:93 /12:302 /13:582 /14:1202 /15:2095 /16:13709 /17:8263 /18:13548 /19:24877 /20:44854 /21:52216 /22:113458 /23:106251 /24:645893 /25:0 /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 6875 12698 UNINET, MX 12479 6169 7239 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4635 CABLEONE - CABLE ONE, INC., US 6327 3479 3697 SHAW - Shaw Communications, CA 22773 3051 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2477 13982 AMAZON-02 - Amazon.com, Inc., US 30036 2308 2650 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2220 3440 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2496 2:1543 3:965 4:9 5:4988 6:185 7:6 8:1501 9:14 11:172 12:1226 13:611 14:2635 15:415 16:179 17:391 18:917 20:596 21:4 22:188 23:8174 24:2628 25:2 27:2833 29:19 31:3421 32:31 34:81 35:290 36:4633 37:4520 38:9875 39:1248 40:438 41:4539 42:1969 43:2935 44:416 45:19670 46:4958 47:400 48:20 49:2190 50:2064 51:598 52:1253 54:232 55:1126 56:11 57:312 58:2318 59:1346 60:1172 61:3095 62:3105 63:1771 64:6195 65:2130 66:6001 67:3255 68:1481 69:4204 70:1022 71:627 72:3085 74:2958 75:1513 76:605 77:2742 78:1917 79:1804 80:2299 81:2124 82:4037 83:1477 84:2027 85:3664 86:1102 87:2243 88:1342 89:4628 90:822 91:8403 92:2850 93:3009 94:4273 95:4515 96:1451 97:313 98:954 99:780 100:69 101:1549 102:4366 103:32335 104:5446 105:816 106:908 107:2823 108:1224 109:4232 110:2302 111:4053 112:3110 113:1936 114:2168 115:2308 116:2163 117:3293 118:2982 119:2088 120:2593 121:1529 122:2960 123:2312 124:1605 125:2952 126:125 128:1616 129:951 130:1569 131:2292 132:771 133:461 134:1619 135:536 136:1630 137:1477 138:2989 139:1621 140:1765 141:1556 142:2474 143:2140 144:1566 145:629 146:2204 147:2283 148:2821 149:2917 150:1319 151:2597 152:2278 153:916 154:9625 155:2289 156:4592 157:2264 158:1504 159:2752 160:3742 161:2003 162:4022 163:2337 164:1969 165:2653 166:1302 167:2200 168:3923 169:868 170:5466 171:1118 172:4589 173:3423 174:891 175:1342 176:3773 177:4704 178:4270 179:2287 180:2988 181:4390 182:3892 183:2751 184:2021 185:21712 186:5526 187:4833 188:4604 189:4499 190:9673 191:1515 192:11476 193:9503 194:7840 195:5683 196:3273 197:3186 198:6235 199:6125 200:8180 201:6389 202:10616 203:10651 204:4741 205:3759 206:4416 207:3957 208:4373 209:5459 210:4786 211:2682 212:4960 213:4058 214:1046 215:54 216:7138 217:3457 218:1623 219:419 220:2187 221:1311 222:903 223:3265 End of report