IPv4 R&E Routing Table Report 21:10 GMT Tue 03 Feb, 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: 1029568 Prefixes after maximum aggregation (per Origin AS): 395585 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507947 Number of IPv4 prefixes with a valid ROA: 615454 Number of IPv4 prefixes with an invalid ROA: 110 Number of IPv4 prefixes with no ROA: 414004 Total ASes present in the Internet Routing Table: 77834 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 66610 Origin ASes announcing only one prefix: 27186 Transit ASes present in the Internet Routing Table: 11224 Transit-only ASes present in the Internet Routing Table: 570 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: 1030 Number of instances of unregistered ASNs: 1061 Number of 32-bit ASNs allocated by the RIRs: 48558 Number of 32-bit ASNs visible in the Routing Table: 39754 Prefixes from 32-bit ASNs in the Routing Table: 221035 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: 452 Number of addresses announced to Internet: 3102662656 Equivalent to 184 /8s, 238 /16s and 224 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 335159 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279666 Total APNIC prefixes after maximum aggregation: 81989 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 266313 Unique aggregates announced from the APNIC address blocks: 107245 APNIC Region origin ASes present in the Internet Routing Table: 15030 APNIC Prefixes per ASN: 17.72 APNIC Region origin ASes announcing only one prefix: 4590 APNIC Region transit ASes present in the Internet Routing Table: 2013 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: 10592 Number of APNIC addresses announced to Internet: 751655424 Equivalent to 44 /8s, 205 /16s and 90 /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: 302755 Total ARIN prefixes after maximum aggregation: 135754 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302268 Unique aggregates announced from the ARIN address blocks: 146321 ARIN Region origin ASes present in the Internet Routing Table: 19387 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7073 ARIN Region transit ASes present in the Internet Routing Table: 1978 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: 5460 Number of ARIN addresses announced to Internet: 1342913024 Equivalent to 80 /8s, 11 /16s and 58 /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: 283360 Total RIPE prefixes after maximum aggregation: 139996 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285521 Unique aggregates announced from the RIPE address blocks: 185216 RIPE Region origin ASes present in the Internet Routing Table: 29165 RIPE Prefixes per ASN: 9.79 RIPE Region origin ASes announcing only one prefix: 12091 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: 12971 Number of RIPE addresses announced to Internet: 733607424 Equivalent to 43 /8s, 185 /16s and 246 /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: 126133 Total LACNIC prefixes after maximum aggregation: 30244 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121998 Unique aggregates announced from the LACNIC address blocks: 49525 LACNIC Region origin ASes present in the Internet Routing Table: 11347 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2689 LACNIC Region transit ASes present in the Internet Routing Table: 2572 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: 9349 Number of LACNIC addresses announced to Internet: 170911488 Equivalent to 10 /8s, 47 /16s and 231 /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: 36624 Total AfriNIC prefixes after maximum aggregation: 6931 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53015 Unique aggregates announced from the AfriNIC address blocks: 19268 AfriNIC Region origin ASes present in the Internet Routing Table: 2021 AfriNIC Prefixes per ASN: 26.23 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103309056 Equivalent to 6 /8s, 40 /16s and 95 /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 13628 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6012 832 564 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4730 544 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4147 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4046 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3724 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3420 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3322 1868 96 VNPT-AS-VN VNPT Corp, VN 24560 2967 865 495 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2771 174 534 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 14110 38818 5512 AMAZON-02 - Amazon.com, Inc., US 22773 4778 3114 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 174 3645 8764 843 COGENT-174 - Cogent Communications, LLC, 396982 3318 4866 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54728 2394 DNIC-AS-00749 - United States Department 16625 2919 1263 2171 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2690 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 7244 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3932 3393 113 AKAMAI-ASN1, NL 9009 3898 364 2229 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1862 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1721 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1590 241 770 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 12696 3298 607 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2484 506 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 65 Instituto Costarricense de Electricidad y 11664 1412 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 1257 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 2486 57 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 1844 1532 338 ETISALAT-MISR, EG 24863 1279 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 328608 604 53 164 Africa-on-Cloud-AS, ZA 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 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 14110 38818 5512 AMAZON-02 - Amazon.com, Inc., US 9808 13628 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12696 3298 607 UNINET, MX 12479 7244 1711 149 UNI2-AS, ES 7545 6012 832 564 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4778 3114 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4730 544 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4147 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 13628 13508 CHINAMOBILE-CN China Mobile Communications Grou 8151 12696 12089 UNINET, MX 12479 7244 7095 UNI2-AS, ES 7545 6012 5448 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4778 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4730 4393 BBIL-AP BHARTI Airtel Ltd., IN 18403 4147 4123 FPT-AS-AP FPT Telecom Company, VN 7552 4046 4017 VIETEL-AS-AP Viettel Group, VN 20940 3932 3819 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 /11:92 /12:302 /13:582 /14:1200 /15:2090 /16:13679 /17:8260 /18:13512 /19:24894 /20:45213 /21:52235 /22:113475 /23:106299 /24:647664 /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 6866 12696 UNINET, MX 12479 6172 7244 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 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2505 14110 AMAZON-02 - Amazon.com, Inc., US 30036 2310 2655 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2224 3444 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) ---------------------------------------------- 1:2481 2:1556 3:985 4:9 5:5091 6:185 7:6 8:1506 9:16 11:172 12:1225 13:621 14:2641 15:419 16:182 17:392 18:917 20:597 21:4 22:188 23:8182 24:2625 25:2 27:2829 29:19 31:3436 32:31 34:81 35:290 36:4624 37:4509 38:10345 39:1261 40:440 41:4538 42:1904 43:2944 44:417 45:19637 46:4944 47:401 48:38 49:2196 50:2056 51:598 52:1258 54:238 55:1118 56:11 57:314 58:2317 59:1343 60:1172 61:3109 62:3097 63:1768 64:6203 65:2105 66:6029 67:3254 68:1479 69:4204 70:1046 71:624 72:3098 74:2974 75:1509 76:591 77:2757 78:1922 79:1804 80:2314 81:2178 82:3990 83:1463 84:2030 85:3805 86:1103 87:2262 88:1341 89:4654 90:824 91:8413 92:2862 93:3009 94:4294 95:4557 96:1451 97:313 98:948 99:779 100:69 101:1425 102:4408 103:32318 104:5464 105:793 106:918 107:2798 108:1223 109:4197 110:2302 111:4081 112:3138 113:1935 114:2170 115:2294 116:2173 117:3377 118:2899 119:2064 120:2672 121:1524 122:2962 123:2339 124:1614 125:2959 126:125 128:1691 129:946 130:1587 131:2354 132:776 133:461 134:1621 135:560 136:1634 137:1554 138:2972 139:1623 140:1768 141:1567 142:2476 143:2201 144:1635 145:627 146:2210 147:2282 148:2779 149:2949 150:1308 151:2683 152:2291 153:938 154:9471 155:2303 156:4521 157:2262 158:1510 159:2762 160:3753 161:1998 162:4055 163:2348 164:1973 165:2641 166:1283 167:2232 168:3951 169:917 170:5489 171:1116 172:4586 173:3436 174:891 175:1347 176:3780 177:4720 178:4306 179:2281 180:2956 181:4393 182:3919 183:2819 184:2023 185:21710 186:5557 187:4863 188:4610 189:4479 190:9726 191:1527 192:11471 193:9501 194:7829 195:5639 196:3265 197:3244 198:6255 199:6107 200:8187 201:6396 202:10628 203:10652 204:4741 205:3740 206:4457 207:3968 208:4372 209:5467 210:4790 211:2689 212:4946 213:4059 214:1073 215:54 216:7138 217:3468 218:1671 219:419 220:2193 221:1313 222:928 223:3282 End of report