IPv4 R&E Routing Table Report 21:10 GMT Sat 24 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: 1028285 Prefixes after maximum aggregation (per Origin AS): 395168 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507450 Number of IPv4 prefixes with a valid ROA: 613802 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 414376 Total ASes present in the Internet Routing Table: 77791 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66563 Origin ASes announcing only one prefix: 27176 Transit ASes present in the Internet Routing Table: 11228 Transit-only ASes present in the Internet Routing Table: 570 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: 1051 Number of instances of unregistered ASNs: 1093 Number of 32-bit ASNs allocated by the RIRs: 48484 Number of 32-bit ASNs visible in the Routing Table: 39691 Prefixes from 32-bit ASNs in the Routing Table: 220523 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: 472 Number of addresses announced to Internet: 3106132992 Equivalent to 185 /8s, 35 /16s and 212 /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: 334741 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279888 Total APNIC prefixes after maximum aggregation: 81973 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 266087 Unique aggregates announced from the APNIC address blocks: 107099 APNIC Region origin ASes present in the Internet Routing Table: 15001 APNIC Prefixes per ASN: 17.74 APNIC Region origin ASes announcing only one prefix: 4586 APNIC Region transit ASes present in the Internet Routing Table: 2008 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: 10569 Number of APNIC addresses announced to Internet: 753575680 Equivalent to 44 /8s, 234 /16s and 167 /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: 301471 Total ARIN prefixes after maximum aggregation: 135381 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301318 Unique aggregates announced from the ARIN address blocks: 146150 ARIN Region origin ASes present in the Internet Routing Table: 19393 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7071 ARIN Region transit ASes present in the Internet Routing Table: 1981 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: 5448 Number of ARIN addresses announced to Internet: 1343883520 Equivalent to 80 /8s, 26 /16s and 9 /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: 283071 Total RIPE prefixes after maximum aggregation: 139958 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285004 Unique aggregates announced from the RIPE address blocks: 184807 RIPE Region origin ASes present in the Internet Routing Table: 29138 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12095 RIPE Region transit ASes present in the Internet Routing Table: 4071 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: 12946 Number of RIPE addresses announced to Internet: 734218752 Equivalent to 43 /8s, 195 /16s and 74 /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: 126308 Total LACNIC prefixes after maximum aggregation: 30246 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 121933 Unique aggregates announced from the LACNIC address blocks: 49512 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2576 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: 9351 Number of LACNIC addresses announced to Internet: 170769408 Equivalent to 10 /8s, 45 /16s and 188 /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: 36496 Total AfriNIC prefixes after maximum aggregation: 6931 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53470 Unique aggregates announced from the AfriNIC address blocks: 19478 AfriNIC Region origin ASes present in the Internet Routing Table: 2014 AfriNIC Prefixes per ASN: 26.55 AfriNIC Region origin ASes announcing only one prefix: 743 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: 1377 Number of AfriNIC addresses announced to Internet: 103400704 Equivalent to 6 /8s, 41 /16s and 197 /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 13523 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6025 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4399 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4037 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3418 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3321 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3195 200 626 LCS-AS-AP LARUS Limited, HK 24560 2959 865 505 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 13994 38809 5441 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1020 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 3098 8766 841 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 7238 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 113 AKAMAI-ASN1, NL 9009 3914 366 2237 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 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 12663 3297 604 UNINET, MX 10620 3446 457 1108 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 1842 1532 339 ETISALAT-MISR, EG 24863 1279 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1126 520 42 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 573 82 3 KENET-AS, KE 328608 571 53 165 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 13994 38809 5441 AMAZON-02 - Amazon.com, Inc., US 9808 13523 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12663 3297 604 UNINET, MX 12479 7238 1711 149 UNI2-AS, ES 7545 6025 833 575 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 4638 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4399 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 13523 13403 CHINAMOBILE-CN China Mobile Communications Grou 8151 12663 12059 UNINET, MX 12479 7238 7089 UNI2-AS, ES 7545 6025 5450 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 4399 4375 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 /14:1204 /15:2096 /16:13707 /17:8260 /18:13556 /19:24884 /20:44915 /21:52237 /22:113414 /23:106299 /24:646665 /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 6841 12663 UNINET, MX 12479 6168 7238 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3498 4638 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 2473 13994 AMAZON-02 - Amazon.com, Inc., US 30036 2306 2647 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2226 3446 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) ---------------------------------------------- 1:2500 2:1544 3:968 4:9 5:5006 6:186 7:6 8:1508 9:14 11:172 12:1225 13:613 14:2633 15:419 16:179 17:390 18:916 20:597 21:4 22:188 23:8189 24:2626 25:2 27:2834 29:19 31:3434 32:31 34:81 35:289 36:4638 37:4515 38:9875 39:1254 40:437 41:4539 42:1959 43:2931 44:418 45:19670 46:4966 47:400 48:20 49:2194 50:2053 51:598 52:1257 54:238 55:1129 56:11 57:310 58:2323 59:1341 60:1172 61:3107 62:3103 63:1773 64:6200 65:2122 66:6003 67:3256 68:1485 69:4207 70:1023 71:625 72:3087 74:2968 75:1513 76:605 77:2750 78:1921 79:1802 80:2304 81:2128 82:4043 83:1476 84:2026 85:3689 86:1103 87:2254 88:1340 89:4643 90:821 91:8400 92:2859 93:3019 94:4279 95:4528 96:1442 97:313 98:954 99:782 100:69 101:1550 102:4368 103:32332 104:5454 105:788 106:916 107:2824 108:1223 109:4216 110:2303 111:4050 112:3119 113:1934 114:2168 115:2302 116:2161 117:3304 118:2984 119:2085 120:2593 121:1530 122:2959 123:2312 124:1606 125:2956 126:125 128:1681 129:955 130:1571 131:2300 132:772 133:461 134:1616 135:540 136:1629 137:1481 138:2994 139:1617 140:1772 141:1562 142:2467 143:2162 144:1575 145:632 146:2201 147:2280 148:2811 149:2936 150:1320 151:2634 152:2277 153:918 154:9640 155:2295 156:4819 157:2267 158:1499 159:2754 160:3742 161:2003 162:4030 163:2337 164:1968 165:2638 166:1288 167:2212 168:3933 169:908 170:5471 171:1113 172:4589 173:3430 174:889 175:1344 176:3773 177:4716 178:4318 179:2279 180:2985 181:4392 182:3903 183:2748 184:2020 185:21708 186:5548 187:4863 188:4602 189:4466 190:9674 191:1523 192:11472 193:9492 194:7839 195:5663 196:3278 197:3192 198:6229 199:6114 200:8189 201:6395 202:10615 203:10657 204:4747 205:3753 206:4412 207:3969 208:4374 209:5458 210:4806 211:2684 212:4955 213:4053 214:1061 215:54 216:7146 217:3461 218:1622 219:419 220:2188 221:1314 222:913 223:3276 End of report