IPv4 R&E Routing Table Report 21:10 GMT Mon 02 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: 1030153 Prefixes after maximum aggregation (per Origin AS): 395681 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507859 Number of IPv4 prefixes with a valid ROA: 615654 Number of IPv4 prefixes with an invalid ROA: 109 Number of IPv4 prefixes with no ROA: 414387 Total ASes present in the Internet Routing Table: 77834 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66618 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: 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: 1033 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 48552 Number of 32-bit ASNs visible in the Routing Table: 39759 Prefixes from 32-bit ASNs in the Routing Table: 221055 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: 477 Number of addresses announced to Internet: 3102866176 Equivalent to 184 /8s, 241 /16s and 251 /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: 335117 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280377 Total APNIC prefixes after maximum aggregation: 82043 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266924 Unique aggregates announced from the APNIC address blocks: 107239 APNIC Region origin ASes present in the Internet Routing Table: 15032 APNIC Prefixes per ASN: 17.76 APNIC Region origin ASes announcing only one prefix: 4594 APNIC Region transit ASes present in the Internet Routing Table: 2018 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: 10597 Number of APNIC addresses announced to Internet: 751605760 Equivalent to 44 /8s, 204 /16s and 152 /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: 302857 Total ARIN prefixes after maximum aggregation: 135866 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302467 Unique aggregates announced from the ARIN address blocks: 146371 ARIN Region origin ASes present in the Internet Routing Table: 19386 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7073 ARIN Region transit ASes present in the Internet Routing Table: 1972 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: 5459 Number of ARIN addresses announced to Internet: 1343237632 Equivalent to 80 /8s, 16 /16s and 46 /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: 283151 Total RIPE prefixes after maximum aggregation: 139922 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285355 Unique aggregates announced from the RIPE address blocks: 185096 RIPE Region origin ASes present in the Internet Routing Table: 29157 RIPE Prefixes per ASN: 9.79 RIPE Region origin ASes announcing only one prefix: 12084 RIPE Region transit ASes present in the Internet Routing Table: 4068 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: 12966 Number of RIPE addresses announced to Internet: 733544192 Equivalent to 43 /8s, 184 /16s and 255 /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: 126173 Total LACNIC prefixes after maximum aggregation: 30241 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122012 Unique aggregates announced from the LACNIC address blocks: 49515 LACNIC Region origin ASes present in the Internet Routing Table: 11355 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: 2571 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: 9356 Number of LACNIC addresses announced to Internet: 170897408 Equivalent to 10 /8s, 47 /16s and 176 /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: 36562 Total AfriNIC prefixes after maximum aggregation: 6941 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 52917 Unique aggregates announced from the AfriNIC address blocks: 19246 AfriNIC Region origin ASes present in the Internet Routing Table: 2019 AfriNIC Prefixes per ASN: 26.21 AfriNIC Region origin ASes announcing only one prefix: 746 AfriNIC Region transit ASes present in the Internet Routing Table: 390 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: 1381 Number of AfriNIC addresses announced to Internet: 103299840 Equivalent to 6 /8s, 40 /16s and 59 /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 13619 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6014 832 566 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4729 544 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4434 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4043 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 2772 174 535 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 14096 38819 5519 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 3661 8766 848 COGENT-174 - Cogent Communications, LLC, 396982 3320 4866 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54728 2394 DNIC-AS-00749 - United States Department 16625 2930 1266 2172 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 7241 1711 149 UNI2-AS, ES 39891 4901 302 71 ALJAWWALSTC-AS, SA 20940 3929 3393 113 AKAMAI-ASN1, NL 9009 3902 365 2231 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2561 182 1860 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1715 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1589 241 769 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 12686 3298 607 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2483 506 350 Mega Cable, S.A. de C.V., MX 11830 1987 369 65 Instituto Costarricense de Electricidad y 11664 1410 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 1256 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 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 1146 524 47 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 571 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 14096 38819 5519 AMAZON-02 - Amazon.com, Inc., US 9808 13619 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12686 3298 607 UNINET, MX 12479 7241 1711 149 UNI2-AS, ES 7545 6014 832 566 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4778 3114 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4729 544 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4434 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 13619 13499 CHINAMOBILE-CN China Mobile Communications Grou 8151 12686 12079 UNINET, MX 12479 7241 7092 UNI2-AS, ES 7545 6014 5448 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4778 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4434 4410 FPT-AS-AP FPT Telecom Company, VN 9498 4729 4392 BBIL-AP BHARTI Airtel Ltd., IN 7552 4043 4014 VIETEL-AS-AP Viettel Group, VN 20940 3929 3816 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 /16:13684 /17:8263 /18:13520 /19:24894 /20:45223 /21:52257 /22:113539 /23:106496 /24:647940 /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 6856 12686 UNINET, MX 12479 6169 7241 UNI2-AS, ES 39891 3651 4901 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 2508 14096 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) ---------------------------------------------- 1:2508 2:1549 3:985 4:9 5:5092 6:185 7:6 8:1507 9:15 11:172 12:1225 13:619 14:2635 15:419 16:179 17:388 18:918 20:597 21:4 22:188 23:8178 24:2624 25:2 27:2828 29:19 31:3439 32:31 34:81 35:291 36:4646 37:4507 38:10383 39:1258 40:440 41:4540 42:1971 43:2950 44:417 45:19663 46:4940 47:401 48:38 49:2196 50:2053 51:598 52:1255 54:238 55:1114 56:11 57:315 58:2316 59:1341 60:1171 61:3126 62:3099 63:1769 64:6203 65:2099 66:6021 67:3254 68:1492 69:4202 70:1029 71:624 72:3099 74:2978 75:1509 76:596 77:2696 78:1926 79:1806 80:2313 81:2158 82:4020 83:1476 84:2029 85:3701 86:1104 87:2260 88:1340 89:4665 90:823 91:8413 92:2871 93:3004 94:4287 95:4551 96:1448 97:313 98:948 99:782 100:69 101:1551 102:4391 103:32378 104:5400 105:800 106:918 107:2836 108:1222 109:4199 110:2302 111:4067 112:3137 113:1943 114:2171 115:2308 116:2170 117:3377 118:3004 119:2076 120:2672 121:1525 122:2970 123:2339 124:1613 125:2959 126:125 128:1689 129:947 130:1584 131:2352 132:778 133:461 134:1621 135:543 136:1637 137:1554 138:2965 139:1623 140:1779 141:1567 142:2479 143:2182 144:1612 145:626 146:2208 147:2283 148:2775 149:2955 150:1319 151:2680 152:2289 153:931 154:9414 155:2297 156:4500 157:2263 158:1507 159:2762 160:3752 161:2002 162:4051 163:2349 164:1972 165:2636 166:1284 167:2224 168:3941 169:917 170:5477 171:1115 172:4587 173:3438 174:890 175:1348 176:3781 177:4737 178:4354 179:2280 180:2963 181:4392 182:3919 183:2828 184:2024 185:21714 186:5562 187:4866 188:4602 189:4479 190:9725 191:1524 192:11498 193:9507 194:7828 195:5638 196:3264 197:3237 198:6256 199:6101 200:8182 201:6388 202:10625 203:10656 204:4744 205:3777 206:4459 207:3964 208:4372 209:5465 210:4804 211:2688 212:4949 213:4053 214:1071 215:54 216:7139 217:3486 218:1671 219:419 220:2192 221:1313 222:933 223:3281 End of report