IPv4 R&E Routing Table Report 21:10 GMT Mon 30 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: 1037069 Prefixes after maximum aggregation (per Origin AS): 398270 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511140 Number of IPv4 prefixes with a valid ROA: 625934 Number of IPv4 prefixes with an invalid ROA: 95 Number of IPv4 prefixes with no ROA: 411040 Total ASes present in the Internet Routing Table: 78140 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 66850 Origin ASes announcing only one prefix: 27298 Transit ASes present in the Internet Routing Table: 11290 Transit-only ASes present in the Internet Routing Table: 592 Paths with bogon ASNs present in the IPv4 Routing Table: 7 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: 1008 Number of instances of unregistered ASNs: 1038 Number of 32-bit ASNs allocated by the RIRs: 49180 Number of 32-bit ASNs visible in the Routing Table: 40195 Prefixes from 32-bit ASNs in the Routing Table: 225334 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 363 Number of addresses announced to Internet: 3106662912 Equivalent to 185 /8s, 43 /16s and 234 /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: 337584 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282313 Total APNIC prefixes after maximum aggregation: 82453 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 269203 Unique aggregates announced from the APNIC address blocks: 107253 APNIC Region origin ASes present in the Internet Routing Table: 15154 APNIC Prefixes per ASN: 17.76 APNIC Region origin ASes announcing only one prefix: 4651 APNIC Region transit ASes present in the Internet Routing Table: 2057 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10706 Number of APNIC addresses announced to Internet: 752837120 Equivalent to 44 /8s, 223 /16s and 98 /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: 303706 Total ARIN prefixes after maximum aggregation: 135882 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303147 Unique aggregates announced from the ARIN address blocks: 146596 ARIN Region origin ASes present in the Internet Routing Table: 19415 ARIN Prefixes per ASN: 15.61 ARIN Region origin ASes announcing only one prefix: 7093 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: 5535 Number of ARIN addresses announced to Internet: 1348002816 Equivalent to 80 /8s, 88 /16s and 228 /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, 393216-404380 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: 286547 Total RIPE prefixes after maximum aggregation: 141649 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 288831 Unique aggregates announced from the RIPE address blocks: 187691 RIPE Region origin ASes present in the Internet Routing Table: 29326 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12145 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: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13219 Number of RIPE addresses announced to Internet: 732554240 Equivalent to 43 /8s, 169 /16s and 228 /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: 127148 Total LACNIC prefixes after maximum aggregation: 30679 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122700 Unique aggregates announced from the LACNIC address blocks: 50167 LACNIC Region origin ASes present in the Internet Routing Table: 11368 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2697 LACNIC Region transit ASes present in the Internet Routing Table: 2613 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9394 Number of LACNIC addresses announced to Internet: 169792256 Equivalent to 10 /8s, 30 /16s and 211 /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: 36347 Total AfriNIC prefixes after maximum aggregation: 6933 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 52824 Unique aggregates announced from the AfriNIC address blocks: 19120 AfriNIC Region origin ASes present in the Internet Routing Table: 1969 AfriNIC Prefixes per ASN: 26.83 AfriNIC Region origin ASes announcing only one prefix: 712 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1341 Number of AfriNIC addresses announced to Internet: 103227904 Equivalent to 6 /8s, 39 /16s and 34 /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 13777 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5937 829 507 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4537 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3677 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3475 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3341 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3007 861 514 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2886 182 549 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 14541 41220 5598 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4654 309 1025 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3720 1321 75 SHAW - Shaw Communications, CA 396982 3294 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3196 8761 816 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2798 1232 2140 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2700 221 895 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 7185 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3944 3389 111 AKAMAI-ASN1, NL 9009 3833 353 2245 M247, RO 12389 3147 2322 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2699 195 1982 CDNEXT, GB 34984 2455 365 570 TELLCOM-AS, TR 8452 1726 1852 14 TE-AS TE-AS, EG 203020 1632 248 807 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12827 3294 608 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2461 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 11664 1460 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1372 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2393 95 TIM SA, BR 22884 1046 66 367 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 2025 648 34 RAYA-AS, EG 36992 1855 1531 337 ETISALAT-MISR, EG 24863 1286 389 16 LINKdotNET-AS, EG 36935 1246 523 46 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 36914 559 82 3 KENET-AS, KE 15399 544 57 58 WANANCHI-, 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 14541 41220 5598 AMAZON-02 - Amazon.com, Inc., US 9808 13777 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12827 3294 608 UNINET, MX 12479 7185 1711 149 UNI2-AS, ES 7545 5937 829 507 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4654 309 1025 CABLEONE - CABLE ONE, INC., US 18403 4537 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 13777 13657 CHINAMOBILE-CN China Mobile Communications Grou 8151 12827 12219 UNINET, MX 12479 7185 7036 UNI2-AS, ES 7545 5937 5430 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4876 4559 BBIL-AP BHARTI Airtel Ltd., IN 18403 4537 4512 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4024 VIETEL-AS-AP Viettel Group, VN 20940 3944 3833 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: 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 /12:297 /13:585 /14:1196 /15:2107 /16:13599 /17:8302 /18:13308 /19:25426 /20:45807 /21:52267 /22:113751 /23:107335 /24:652923 /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 7002 12827 UNINET, MX 12479 6127 7185 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3515 4654 CABLEONE - CABLE ONE, INC., US 6327 3501 3720 SHAW - Shaw Communications, CA 22773 3053 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2615 14541 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2661 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2483 2:1744 3:1003 4:5 5:5104 6:196 7:6 8:1498 9:38 11:172 12:1186 13:685 14:2671 15:459 16:169 17:421 18:908 20:604 21:4 22:188 23:8244 24:2854 25:2 27:2825 28:1 29:19 31:3398 32:36 34:86 35:291 36:4642 37:4449 38:9988 39:1276 40:421 41:4465 42:2194 43:3022 44:450 45:19796 46:4893 47:409 48:105 49:2212 50:2036 51:618 52:1299 54:273 55:1113 56:11 57:316 58:2327 59:1375 60:1173 61:3117 62:3120 63:1754 64:6271 65:2134 66:6035 67:3256 68:1504 69:4217 70:1050 71:616 72:3151 74:3009 75:1488 76:591 77:2913 78:1934 79:1790 80:2334 81:2193 82:4033 83:1444 84:2091 85:3795 86:1091 87:2307 88:1350 89:4695 90:786 91:8416 92:2833 93:3026 94:4344 95:4636 96:1450 97:315 98:944 99:809 100:68 101:1456 102:4267 103:32461 104:5342 105:819 106:910 107:2862 108:1235 109:4215 110:2291 111:4115 112:3145 113:1972 114:2265 115:2327 116:2120 117:3490 118:2993 119:2088 120:2692 121:1556 122:2987 123:2253 124:1657 125:2984 126:125 128:1705 129:972 130:1621 131:2465 132:809 133:475 134:1645 135:608 136:1590 137:1553 138:3182 139:1642 140:1764 141:1696 142:2521 143:2109 144:1718 145:642 146:2205 147:2182 148:2725 149:3064 150:1350 151:2730 152:2313 153:1058 154:9568 155:2305 156:4485 157:2294 158:1509 159:2815 160:3826 161:1959 162:4040 163:2471 164:2035 165:2615 166:1287 167:2264 168:3975 169:889 170:5535 171:1119 172:4557 173:3476 174:881 175:1361 176:3828 177:4792 178:4365 179:2293 180:3028 181:4486 182:4021 183:2839 184:2015 185:21757 186:5757 187:4944 188:4596 189:4529 190:9808 191:1549 192:11491 193:9582 194:7849 195:5803 196:3281 197:3158 198:6279 199:6090 200:8226 201:6419 202:10716 203:10651 204:4781 205:3780 206:4538 207:4007 208:4391 209:5497 210:4771 211:2685 212:4995 213:4112 214:1062 215:47 216:7295 217:3549 218:1698 219:421 220:2199 221:1310 222:929 223:3394 End of report