IPv4 R&E Routing Table Report 21:10 GMT Wed 11 Mar, 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: 1035308 Prefixes after maximum aggregation (per Origin AS): 397728 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510254 Number of IPv4 prefixes with a valid ROA: 622722 Number of IPv4 prefixes with an invalid ROA: 102 Number of IPv4 prefixes with no ROA: 412484 Total ASes present in the Internet Routing Table: 78088 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66831 Origin ASes announcing only one prefix: 27293 Transit ASes present in the Internet Routing Table: 11257 Transit-only ASes present in the Internet Routing Table: 590 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1073 Number of instances of unregistered ASNs: 1103 Number of 32-bit ASNs allocated by the RIRs: 48954 Number of 32-bit ASNs visible in the Routing Table: 40078 Prefixes from 32-bit ASNs in the Routing Table: 223429 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 458 Number of addresses announced to Internet: 3110372352 Equivalent to 185 /8s, 100 /16s and 132 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 337023 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280747 Total APNIC prefixes after maximum aggregation: 81827 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267969 Unique aggregates announced from the APNIC address blocks: 107195 APNIC Region origin ASes present in the Internet Routing Table: 15121 APNIC Prefixes per ASN: 17.72 APNIC Region origin ASes announcing only one prefix: 4641 APNIC Region transit ASes present in the Internet Routing Table: 2042 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10675 Number of APNIC addresses announced to Internet: 751910144 Equivalent to 44 /8s, 209 /16s and 61 /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: 304375 Total ARIN prefixes after maximum aggregation: 137011 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302955 Unique aggregates announced from the ARIN address blocks: 146676 ARIN Region origin ASes present in the Internet Routing Table: 19396 ARIN Prefixes per ASN: 15.62 ARIN Region origin ASes announcing only one prefix: 7078 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: 5509 Number of ARIN addresses announced to Internet: 1350733824 Equivalent to 80 /8s, 130 /16s and 144 /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: 285206 Total RIPE prefixes after maximum aggregation: 140908 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287808 Unique aggregates announced from the RIPE address blocks: 186983 RIPE Region origin ASes present in the Internet Routing Table: 29289 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12155 RIPE Region transit ASes present in the Internet Routing Table: 4053 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13146 Number of RIPE addresses announced to Internet: 733489664 Equivalent to 43 /8s, 184 /16s and 42 /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: 127058 Total LACNIC prefixes after maximum aggregation: 30339 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 122765 Unique aggregates announced from the LACNIC address blocks: 49630 LACNIC Region origin ASes present in the Internet Routing Table: 11352 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2684 LACNIC Region transit ASes present in the Internet Routing Table: 2582 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: 9366 Number of LACNIC addresses announced to Internet: 170860032 Equivalent to 10 /8s, 47 /16s and 30 /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: 36849 Total AfriNIC prefixes after maximum aggregation: 6955 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53352 Unique aggregates announced from the AfriNIC address blocks: 19365 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.48 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103167232 Equivalent to 6 /8s, 38 /16s and 53 /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 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5975 830 525 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4842 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4570 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4004 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3671 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3464 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 2997 864 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2829 178 553 LCS-AS-AP LARUS Limited, HK 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 14461 41232 5543 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4644 308 1019 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3707 1321 75 SHAW - Shaw Communications, CA 174 3433 8764 846 COGENT-174 - Cogent Communications, LLC, 396982 3290 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2839 1246 2154 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2697 221 897 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 7237 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3945 3393 114 AKAMAI-ASN1, NL 9009 3827 355 2246 M247, RO 12389 3145 2319 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2668 193 1955 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1699 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 787 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 12727 3299 604 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2454 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1249 371 22 INTEGRATEL PERU S.A.A., PE 26615 1060 2475 94 TIM SA, BR 22884 1059 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2044 648 34 RAYA-AS, EG 36992 1848 1532 339 ETISALAT-MISR, EG 24863 1286 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 557 82 3 KENET-AS, KE 328608 554 50 162 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 14461 41232 5543 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12727 3299 604 UNINET, MX 12479 7237 1711 149 UNI2-AS, ES 7545 5975 830 525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4842 548 320 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4644 308 1019 CABLEONE - CABLE ONE, INC., US 18403 4570 347 25 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 13726 13606 CHINAMOBILE-CN China Mobile Communications Grou 8151 12727 12123 UNINET, MX 12479 7237 7088 UNI2-AS, ES 7545 5975 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4570 4545 FPT-AS-AP FPT Telecom Company, VN 9498 4842 4522 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4004 3975 VIETEL-AS-AP Viettel Group, VN 20940 3945 3831 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 13450 UNALLOCATED 8.29.117.0/24 55002 DEFENSE-NET - F5, Inc., 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 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 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: 174 COGENT-174 - Cogent Communications, LLC, 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 /11:95 /12:298 /13:584 /14:1202 /15:2107 /16:13669 /17:8308 /18:13429 /19:25423 /20:45648 /21:52346 /22:113685 /23:107247 /24:651196 /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 6899 12727 UNINET, MX 12479 6174 7237 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3505 4644 CABLEONE - CABLE ONE, INC., US 6327 3488 3707 SHAW - Shaw Communications, CA 22773 3049 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2586 14461 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2489 2:1621 3:992 4:5 5:5106 6:196 7:6 8:1498 9:29 11:172 12:1195 13:653 14:2661 15:459 16:167 17:397 18:914 20:603 21:4 22:188 23:8238 24:2742 25:2 27:2828 28:1 29:19 31:3407 32:30 34:87 35:291 36:4632 37:4457 38:10110 39:1267 40:241 41:4560 42:2081 43:2989 44:446 45:19885 46:4914 47:410 48:89 49:2186 50:2077 51:602 52:1311 54:280 55:1120 56:11 57:321 58:2343 59:1355 60:1174 61:3107 62:3120 63:1761 64:6231 65:2115 66:6034 67:3263 68:1497 69:4230 70:1037 71:621 72:3099 74:2984 75:1496 76:592 77:2836 78:1906 79:1794 80:2335 81:2218 82:3998 83:1447 84:2049 85:3820 86:1103 87:2274 88:1354 89:4693 90:811 91:8427 92:2844 93:3016 94:4295 95:4608 96:1444 97:313 98:948 99:803 100:67 101:1444 102:4470 103:32491 104:5394 105:781 106:921 107:2853 108:1203 109:4210 110:2288 111:4061 112:3149 113:1973 114:2177 115:2327 116:2161 117:3433 118:3003 119:2050 120:2686 121:1520 122:2979 123:2264 124:1642 125:2977 126:125 128:1697 129:960 130:1608 131:2437 132:799 133:463 134:1643 135:586 136:1599 137:1556 138:3150 139:1654 140:1788 141:1585 142:2517 143:2138 144:1737 145:630 146:2203 147:2158 148:2791 149:3045 150:1329 151:2683 152:2288 153:1016 154:9604 155:2319 156:4420 157:2276 158:1508 159:2761 160:3833 161:1947 162:4024 163:2394 164:2032 165:2626 166:1300 167:2255 168:3988 169:897 170:5557 171:1105 172:4403 173:3450 174:884 175:1352 176:3824 177:4889 178:4341 179:2299 180:3005 181:4447 182:4013 183:2829 184:2018 185:21784 186:5682 187:4973 188:4545 189:4490 190:9751 191:1585 192:11455 193:9600 194:7838 195:5713 196:3318 197:3221 198:6256 199:6110 200:8205 201:6377 202:10700 203:10645 204:4759 205:3779 206:4529 207:4029 208:4386 209:5433 210:4784 211:2684 212:5002 213:4099 214:1048 215:46 216:7263 217:3551 218:1679 219:418 220:2197 221:1315 222:937 223:3317 End of report