IPv4 R&E Routing Table Report 21:10 GMT Thu 05 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: 1030112 Prefixes after maximum aggregation (per Origin AS): 395960 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508205 Number of IPv4 prefixes with a valid ROA: 616357 Number of IPv4 prefixes with an invalid ROA: 111 Number of IPv4 prefixes with no ROA: 413644 Total ASes present in the Internet Routing Table: 77859 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 66621 Origin ASes announcing only one prefix: 27199 Transit ASes present in the Internet Routing Table: 11238 Transit-only ASes present in the Internet Routing Table: 574 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: 1038 Number of instances of unregistered ASNs: 1069 Number of 32-bit ASNs allocated by the RIRs: 48594 Number of 32-bit ASNs visible in the Routing Table: 39774 Prefixes from 32-bit ASNs in the Routing Table: 221550 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: 3102630656 Equivalent to 184 /8s, 238 /16s and 99 /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: 335208 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279903 Total APNIC prefixes after maximum aggregation: 82063 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 266557 Unique aggregates announced from the APNIC address blocks: 107250 APNIC Region origin ASes present in the Internet Routing Table: 15026 APNIC Prefixes per ASN: 17.74 APNIC Region origin ASes announcing only one prefix: 4594 APNIC Region transit ASes present in the Internet Routing Table: 2017 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: 10586 Number of APNIC addresses announced to Internet: 751740160 Equivalent to 44 /8s, 206 /16s and 165 /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: 302733 Total ARIN prefixes after maximum aggregation: 135827 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302291 Unique aggregates announced from the ARIN address blocks: 146358 ARIN Region origin ASes present in the Internet Routing Table: 19409 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7087 ARIN Region transit ASes present in the Internet Routing Table: 1984 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: 5465 Number of ARIN addresses announced to Internet: 1342615040 Equivalent to 80 /8s, 6 /16s and 174 /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: 283544 Total RIPE prefixes after maximum aggregation: 140221 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285750 Unique aggregates announced from the RIPE address blocks: 185359 RIPE Region origin ASes present in the Internet Routing Table: 29161 RIPE Prefixes per ASN: 9.80 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: 12985 Number of RIPE addresses announced to Internet: 733784320 Equivalent to 43 /8s, 188 /16s and 169 /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: 126273 Total LACNIC prefixes after maximum aggregation: 30252 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122106 Unique aggregates announced from the LACNIC address blocks: 49573 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.76 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: 9357 Number of LACNIC addresses announced to Internet: 170861312 Equivalent to 10 /8s, 47 /16s and 35 /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: 36621 Total AfriNIC prefixes after maximum aggregation: 6926 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 52955 Unique aggregates announced from the AfriNIC address blocks: 19291 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.22 AfriNIC Region origin ASes announcing only one prefix: 745 AfriNIC Region transit ASes present in the Internet Routing Table: 393 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: 103362304 Equivalent to 6 /8s, 41 /16s and 47 /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 13686 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6003 831 555 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4742 545 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4128 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3423 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3323 1868 96 VNPT-AS-VN VNPT Corp, VN 24560 2969 865 496 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2732 171 532 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 14097 38817 5509 AMAZON-02 - Amazon.com, Inc., US 22773 4778 3114 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4636 308 1023 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 174 3666 8767 851 COGENT-174 - Cogent Communications, LLC, 396982 3308 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3144 54729 2395 DNIC-AS-00749 - United States Department 16625 2918 1263 2174 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 4969 306 72 ALJAWWALSTC-AS, SA 20940 3928 3393 111 AKAMAI-ASN1, NL 9009 3897 364 2229 M247, RO 12389 3148 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2577 184 1876 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 12717 3286 607 UNINET, MX 10620 3445 457 1107 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 1413 278 33 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 1055 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1020 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 1280 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1152 521 44 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1071 78 20 ORANGE-COTE-IVOIRE, CI 328608 608 53 163 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 14097 38817 5509 AMAZON-02 - Amazon.com, Inc., US 9808 13686 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12717 3286 607 UNINET, MX 12479 7241 1711 149 UNI2-AS, ES 7545 6003 831 555 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 4742 545 336 BBIL-AP BHARTI Airtel Ltd., IN 11492 4636 308 1023 CABLEONE - CABLE ONE, INC., US 18403 4128 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 13686 13566 CHINAMOBILE-CN China Mobile Communications Grou 8151 12717 12110 UNINET, MX 12479 7241 7092 UNI2-AS, ES 7545 6003 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 4742 4406 BBIL-AP BHARTI Airtel Ltd., IN 18403 4128 4104 FPT-AS-AP FPT Telecom Company, VN 7552 4053 4024 VIETEL-AS-AP Viettel Group, VN 20940 3928 3817 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 201687 UNALLOCATED 5.231.220.0/24 58212 DATAFOREST, DE 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 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 /14:1201 /15:2090 /16:13669 /17:8261 /18:13533 /19:24895 /20:45227 /21:52233 /22:113443 /23:106379 /24:648134 /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 6886 12717 UNINET, MX 12479 6169 7241 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3496 4636 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 2503 14097 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2657 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) ---------------------------------------------- 1:2481 2:1557 3:985 4:9 5:5109 6:187 7:6 8:1508 9:18 11:172 12:1228 13:617 14:2636 15:420 16:182 17:393 18:915 20:597 21:4 22:188 23:8196 24:2624 25:2 27:2834 29:19 31:3470 32:31 34:81 35:291 36:4630 37:4482 38:10396 39:1263 40:436 41:4560 42:1900 43:2960 44:419 45:19677 46:4937 47:401 48:38 49:2197 50:2063 51:598 52:1256 54:241 55:1120 56:11 57:317 58:2317 59:1348 60:1172 61:3108 62:3103 63:1772 64:6187 65:2103 66:6011 67:3253 68:1487 69:4205 70:1045 71:621 72:3071 74:2973 75:1508 76:584 77:2747 78:1925 79:1802 80:2315 81:2175 82:4002 83:1470 84:2035 85:3787 86:1108 87:2257 88:1341 89:4661 90:819 91:8414 92:2856 93:3000 94:4298 95:4559 96:1447 97:313 98:948 99:780 100:69 101:1437 102:4416 103:32350 104:5465 105:792 106:919 107:2844 108:1222 109:4186 110:2301 111:4092 112:3142 113:1968 114:2171 115:2249 116:2172 117:3416 118:2897 119:2069 120:2676 121:1524 122:2964 123:2339 124:1622 125:2962 126:125 128:1692 129:947 130:1597 131:2361 132:777 133:461 134:1627 135:559 136:1631 137:1545 138:2977 139:1627 140:1784 141:1570 142:2470 143:2196 144:1660 145:627 146:2205 147:2277 148:2780 149:2983 150:1322 151:2694 152:2283 153:956 154:9419 155:2293 156:4530 157:2258 158:1505 159:2769 160:3720 161:1991 162:4055 163:2347 164:2017 165:2643 166:1283 167:2234 168:3952 169:918 170:5498 171:1113 172:4591 173:3429 174:891 175:1347 176:3786 177:4730 178:4315 179:2284 180:2956 181:4389 182:3928 183:2817 184:1996 185:21711 186:5562 187:4909 188:4611 189:4491 190:9724 191:1524 192:11504 193:9503 194:7819 195:5632 196:3257 197:3236 198:6252 199:6106 200:8179 201:6398 202:10625 203:10656 204:4742 205:3773 206:4462 207:3969 208:4361 209:5466 210:4791 211:2688 212:4970 213:4054 214:1070 215:54 216:7144 217:3485 218:1671 219:419 220:2191 221:1316 222:928 223:3291 End of report