IPv4 R&E Routing Table Report 21:10 GMT Mon 26 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: 1028410 Prefixes after maximum aggregation (per Origin AS): 395339 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507512 Number of IPv4 prefixes with a valid ROA: 614024 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 414276 Total ASes present in the Internet Routing Table: 77801 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66585 Origin ASes announcing only one prefix: 27186 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: 1045 Number of instances of unregistered ASNs: 1087 Number of 32-bit ASNs allocated by the RIRs: 48505 Number of 32-bit ASNs visible in the Routing Table: 39706 Prefixes from 32-bit ASNs in the Routing Table: 220434 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: 466 Number of addresses announced to Internet: 3106940672 Equivalent to 185 /8s, 48 /16s and 39 /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: 334760 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280099 Total APNIC prefixes after maximum aggregation: 81947 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266374 Unique aggregates announced from the APNIC address blocks: 106953 APNIC Region origin ASes present in the Internet Routing Table: 15007 APNIC Prefixes per ASN: 17.75 APNIC Region origin ASes announcing only one prefix: 4590 APNIC Region transit ASes present in the Internet Routing Table: 2004 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: 10573 Number of APNIC addresses announced to Internet: 753652224 Equivalent to 44 /8s, 235 /16s and 210 /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: 301632 Total ARIN prefixes after maximum aggregation: 135550 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301408 Unique aggregates announced from the ARIN address blocks: 146207 ARIN Region origin ASes present in the Internet Routing Table: 19394 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7073 ARIN Region transit ASes present in the Internet Routing Table: 1975 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 31 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5451 Number of ARIN addresses announced to Internet: 1344529408 Equivalent to 80 /8s, 35 /16s and 228 /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: 283150 Total RIPE prefixes after maximum aggregation: 140005 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285113 Unique aggregates announced from the RIPE address blocks: 184965 RIPE Region origin ASes present in the Internet Routing Table: 29150 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12097 RIPE Region transit ASes present in the Internet Routing Table: 4073 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: 12956 Number of RIPE addresses announced to Internet: 734283520 Equivalent to 43 /8s, 196 /16s and 71 /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: 125985 Total LACNIC prefixes after maximum aggregation: 30222 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121846 Unique aggregates announced from the LACNIC address blocks: 49488 LACNIC Region origin ASes present in the Internet Routing Table: 11347 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2684 LACNIC Region transit ASes present in the Internet Routing Table: 2569 Average LACNIC Region AS path length visible: 5.3 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: 170758144 Equivalent to 10 /8s, 45 /16s and 144 /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: 36499 Total AfriNIC prefixes after maximum aggregation: 6941 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53202 Unique aggregates announced from the AfriNIC address blocks: 19501 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.39 AfriNIC Region origin ASes announcing only one prefix: 742 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103433984 Equivalent to 6 /8s, 42 /16s and 71 /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 13530 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6022 833 573 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4420 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4037 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3727 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3418 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3323 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3164 199 618 LCS-AS-AP LARUS Limited, HK 24560 2962 865 507 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 13993 38809 5437 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1025 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 396982 3330 4868 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54729 2393 DNIC-AS-00749 - United States Department 174 3105 8766 840 COGENT-174 - Cogent Communications, LLC, 16625 2948 1274 2171 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 222 902 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 7235 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 113 AKAMAI-ASN1, NL 9009 3910 366 2235 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2561 182 1860 CDNEXT, GB 34984 2425 364 577 TELLCOM-AS, TR 8452 1713 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1594 241 768 HOSTROYALE, IN 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 12648 3314 607 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2484 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 1015 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 1843 1532 339 ETISALAT-MISR, EG 24863 1278 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1128 521 44 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 571 53 165 Africa-on-Cloud-AS, ZA 36914 570 82 3 KENET-AS, KE 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 13993 38809 5437 AMAZON-02 - Amazon.com, Inc., US 9808 13530 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12648 3314 607 UNINET, MX 12479 7235 1711 149 UNI2-AS, ES 7545 6022 833 573 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1025 CABLEONE - CABLE ONE, INC., US 18403 4420 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 13530 13410 CHINAMOBILE-CN China Mobile Communications Grou 8151 12648 12041 UNINET, MX 12479 7235 7086 UNI2-AS, ES 7545 6022 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4781 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4420 4396 FPT-AS-AP FPT Telecom Company, VN 9498 4703 4365 BBIL-AP BHARTI Airtel Ltd., IN 7552 4037 4008 VIETEL-AS-AP Viettel Group, VN 20940 3943 3830 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 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 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 /14:1203 /15:2096 /16:13714 /17:8271 /18:13559 /19:24883 /20:44911 /21:52247 /22:113509 /23:106438 /24:646531 /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 6827 12648 UNINET, MX 12479 6165 7235 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4637 CABLEONE - CABLE ONE, INC., US 6327 3479 3698 SHAW - Shaw Communications, CA 22773 3051 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2469 13993 AMAZON-02 - Amazon.com, Inc., US 30036 2307 2651 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 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) ---------------------------------------------- 1:2499 2:1549 3:968 4:9 5:5030 6:185 7:6 8:1504 9:14 11:172 12:1226 13:619 14:2635 15:419 16:179 17:392 18:916 20:597 21:4 22:188 23:8187 24:2622 25:2 27:2835 29:19 31:3432 32:31 34:81 35:289 36:4638 37:4507 38:9871 39:1252 40:438 41:4538 42:1962 43:2932 44:417 45:19682 46:4946 47:400 48:38 49:2197 50:2053 51:598 52:1254 54:238 55:1109 56:11 57:310 58:2322 59:1342 60:1172 61:3108 62:3107 63:1774 64:6192 65:2126 66:6002 67:3255 68:1485 69:4191 70:1028 71:625 72:3086 74:2968 75:1513 76:605 77:2741 78:1924 79:1804 80:2301 81:2145 82:4036 83:1476 84:2026 85:3687 86:1104 87:2250 88:1340 89:4656 90:821 91:8398 92:2861 93:3017 94:4283 95:4536 96:1444 97:313 98:953 99:782 100:69 101:1550 102:4365 103:32344 104:5463 105:789 106:918 107:2830 108:1221 109:4213 110:2305 111:4052 112:3121 113:1936 114:2169 115:2300 116:2161 117:3306 118:3000 119:2085 120:2592 121:1531 122:2960 123:2308 124:1605 125:2956 126:125 128:1681 129:948 130:1578 131:2335 132:770 133:461 134:1618 135:539 136:1628 137:1483 138:2979 139:1619 140:1777 141:1564 142:2476 143:2160 144:1578 145:631 146:2202 147:2280 148:2809 149:2938 150:1321 151:2642 152:2279 153:921 154:9640 155:2308 156:4567 157:2270 158:1492 159:2753 160:3738 161:2002 162:4036 163:2339 164:1966 165:2635 166:1288 167:2209 168:3944 169:908 170:5431 171:1116 172:4586 173:3428 174:889 175:1344 176:3761 177:4718 178:4328 179:2284 180:2985 181:4393 182:3905 183:2753 184:2015 185:21735 186:5547 187:4851 188:4610 189:4463 190:9668 191:1513 192:11467 193:9495 194:7845 195:5652 196:3281 197:3192 198:6235 199:6106 200:8181 201:6397 202:10617 203:10658 204:4734 205:3774 206:4417 207:3965 208:4368 209:5461 210:4805 211:2684 212:4962 213:4047 214:1063 215:54 216:7141 217:3469 218:1623 219:419 220:2187 221:1315 222:915 223:3294 End of report