IPv4 R&E Routing Table Report 21:10 GMT Sat 14 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: 1035889 Prefixes after maximum aggregation (per Origin AS): 398416 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511610 Number of IPv4 prefixes with a valid ROA: 623974 Number of IPv4 prefixes with an invalid ROA: 104 Number of IPv4 prefixes with no ROA: 411811 Total ASes present in the Internet Routing Table: 78115 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66858 Origin ASes announcing only one prefix: 27283 Transit ASes present in the Internet Routing Table: 11257 Transit-only ASes present in the Internet Routing Table: 589 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: 1064 Number of instances of unregistered ASNs: 1094 Number of 32-bit ASNs allocated by the RIRs: 48956 Number of 32-bit ASNs visible in the Routing Table: 40114 Prefixes from 32-bit ASNs in the Routing Table: 223846 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: 409 Number of addresses announced to Internet: 3108038656 Equivalent to 185 /8s, 64 /16s and 232 /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: 337314 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280795 Total APNIC prefixes after maximum aggregation: 81871 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267980 Unique aggregates announced from the APNIC address blocks: 107237 APNIC Region origin ASes present in the Internet Routing Table: 15133 APNIC Prefixes per ASN: 17.71 APNIC Region origin ASes announcing only one prefix: 4643 APNIC Region transit ASes present in the Internet Routing Table: 2036 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: 10688 Number of APNIC addresses announced to Internet: 751792384 Equivalent to 44 /8s, 207 /16s and 113 /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: 304827 Total ARIN prefixes after maximum aggregation: 137244 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303554 Unique aggregates announced from the ARIN address blocks: 147103 ARIN Region origin ASes present in the Internet Routing Table: 19397 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7068 ARIN Region transit ASes present in the Internet Routing Table: 1985 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: 5506 Number of ARIN addresses announced to Internet: 1348809728 Equivalent to 80 /8s, 101 /16s and 52 /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: 285576 Total RIPE prefixes after maximum aggregation: 141012 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 288161 Unique aggregates announced from the RIPE address blocks: 187278 RIPE Region origin ASes present in the Internet Routing Table: 29309 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12156 RIPE Region transit ASes present in the Internet Routing Table: 4055 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: 13171 Number of RIPE addresses announced to Internet: 733461248 Equivalent to 43 /8s, 183 /16s and 187 /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: 126845 Total LACNIC prefixes after maximum aggregation: 30660 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122581 Unique aggregates announced from the LACNIC address blocks: 50245 LACNIC Region origin ASes present in the Internet Routing Table: 11354 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2586 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: 9370 Number of LACNIC addresses announced to Internet: 170350848 Equivalent to 10 /8s, 39 /16s and 89 /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: 36782 Total AfriNIC prefixes after maximum aggregation: 6949 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 53203 Unique aggregates announced from the AfriNIC address blocks: 19386 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.44 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 393 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: 1379 Number of AfriNIC addresses announced to Internet: 103434240 Equivalent to 6 /8s, 42 /16s and 72 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5973 830 523 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4562 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4021 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3005 865 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2837 178 546 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 14453 41218 5594 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4646 308 1021 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3707 1321 75 SHAW - Shaw Communications, CA 396982 3290 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3192 8764 845 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2832 1242 2148 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2700 221 890 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 7206 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3948 3393 114 AKAMAI-ASN1, NL 9009 3830 355 2249 M247, RO 12389 3146 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2669 193 1956 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1697 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 12808 3302 596 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2455 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1454 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 1244 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2475 94 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 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 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 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 15399 547 57 58 WANANCHI-, KE 36914 545 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 14453 41218 5594 AMAZON-02 - Amazon.com, Inc., US 9808 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12808 3302 596 UNINET, MX 12479 7206 1711 149 UNI2-AS, ES 7545 5973 830 523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4646 308 1021 CABLEONE - CABLE ONE, INC., US 18403 4562 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 13730 13610 CHINAMOBILE-CN China Mobile Communications Grou 8151 12808 12212 UNINET, MX 12479 7206 7057 UNI2-AS, ES 7545 5973 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4562 4537 FPT-AS-AP FPT Telecom Company, VN 9498 4846 4526 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4021 3992 VIETEL-AS-AP Viettel Group, VN 20940 3948 3834 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 397665 UNALLOCATED 12.24.28.0/24 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: 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 /14:1195 /15:2098 /16:13617 /17:8291 /18:13306 /19:25419 /20:45736 /21:52335 /22:113769 /23:107329 /24:651746 /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 6971 12808 UNINET, MX 12479 6143 7206 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4646 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 2585 14453 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) ---------------------------------------------- 1:2484 2:1653 3:1002 4:5 5:5117 6:196 7:6 8:1500 9:29 11:172 12:1194 13:637 14:2665 15:459 16:167 17:420 18:914 20:603 21:4 22:188 23:8248 24:2830 25:2 27:2831 28:1 29:19 31:3412 32:30 34:87 35:292 36:4616 37:4460 38:9948 39:1267 40:415 41:4506 42:2094 43:2988 44:446 45:19895 46:4924 47:408 48:89 49:2187 50:2068 51:602 52:1307 54:280 55:1128 56:11 57:321 58:2336 59:1353 60:1174 61:3110 62:3121 63:1760 64:6252 65:2116 66:6013 67:3261 68:1499 69:4209 70:1040 71:622 72:3116 74:2993 75:1496 76:592 77:2860 78:1910 79:1793 80:2337 81:2204 82:3998 83:1446 84:2049 85:3812 86:1102 87:2287 88:1354 89:4680 90:797 91:8445 92:2840 93:3014 94:4311 95:4634 96:1444 97:313 98:948 99:800 100:68 101:1444 102:4474 103:32524 104:5469 105:814 106:924 107:2851 108:1222 109:4222 110:2288 111:4068 112:3151 113:1978 114:2179 115:2322 116:2171 117:3432 118:3001 119:2057 120:2686 121:1522 122:2989 123:2273 124:1619 125:2978 126:125 128:1701 129:970 130:1606 131:2475 132:802 133:463 134:1647 135:586 136:1596 137:1544 138:3165 139:1646 140:1790 141:1585 142:2560 143:2148 144:1738 145:632 146:2204 147:2163 148:2737 149:3062 150:1323 151:2691 152:2256 153:1024 154:9540 155:2303 156:4365 157:2276 158:1491 159:2771 160:3833 161:1951 162:4022 163:2402 164:2034 165:2628 166:1298 167:2252 168:3968 169:897 170:5547 171:1105 172:4625 173:3461 174:883 175:1355 176:3828 177:4792 178:4331 179:2290 180:3008 181:4449 182:4016 183:2822 184:2016 185:21813 186:5693 187:4946 188:4557 189:4509 190:9755 191:1573 192:11517 193:9596 194:7843 195:5733 196:3308 197:3229 198:6277 199:6111 200:8210 201:6392 202:10712 203:10649 204:4758 205:3783 206:4532 207:4020 208:4381 209:5447 210:4781 211:2683 212:5005 213:4102 214:1046 215:46 216:7271 217:3546 218:1678 219:418 220:2156 221:1316 222:936 223:3326 End of report