IPv4 R&E Routing Table Report 21:10 GMT Wed 01 Apr, 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: 1037824 Prefixes after maximum aggregation (per Origin AS): 398578 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511598 Number of IPv4 prefixes with a valid ROA: 626677 Number of IPv4 prefixes with an invalid ROA: 95 Number of IPv4 prefixes with no ROA: 411052 Total ASes present in the Internet Routing Table: 78198 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 66910 Origin ASes announcing only one prefix: 27320 Transit ASes present in the Internet Routing Table: 11288 Transit-only ASes present in the Internet Routing Table: 595 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: 1044 Number of instances of unregistered ASNs: 1074 Number of 32-bit ASNs allocated by the RIRs: 49169 Number of 32-bit ASNs visible in the Routing Table: 40252 Prefixes from 32-bit ASNs in the Routing Table: 225817 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: 408 Number of addresses announced to Internet: 3107459072 Equivalent to 185 /8s, 56 /16s and 16 /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: 338085 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282212 Total APNIC prefixes after maximum aggregation: 82465 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 269137 Unique aggregates announced from the APNIC address blocks: 107230 APNIC Region origin ASes present in the Internet Routing Table: 15133 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4650 APNIC Region transit ASes present in the Internet Routing Table: 2053 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: 10701 Number of APNIC addresses announced to Internet: 752765696 Equivalent to 44 /8s, 222 /16s and 75 /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: 303477 Total ARIN prefixes after maximum aggregation: 135875 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303065 Unique aggregates announced from the ARIN address blocks: 146581 ARIN Region origin ASes present in the Internet Routing Table: 19407 ARIN Prefixes per ASN: 15.62 ARIN Region origin ASes announcing only one prefix: 7089 ARIN Region transit ASes present in the Internet Routing Table: 1982 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: 5538 Number of ARIN addresses announced to Internet: 1348454400 Equivalent to 80 /8s, 95 /16s and 200 /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: 286889 Total RIPE prefixes after maximum aggregation: 141826 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 289093 Unique aggregates announced from the RIPE address blocks: 187900 RIPE Region origin ASes present in the Internet Routing Table: 29348 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12149 RIPE Region transit ASes present in the Internet Routing Table: 4056 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: 13232 Number of RIPE addresses announced to Internet: 732717824 Equivalent to 43 /8s, 172 /16s and 99 /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: 127276 Total LACNIC prefixes after maximum aggregation: 30746 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122767 Unique aggregates announced from the LACNIC address blocks: 50210 LACNIC Region origin ASes present in the Internet Routing Table: 11377 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2703 LACNIC Region transit ASes present in the Internet Routing Table: 2607 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: 9401 Number of LACNIC addresses announced to Internet: 169825536 Equivalent to 10 /8s, 31 /16s and 85 /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: 36926 Total AfriNIC prefixes after maximum aggregation: 6989 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53353 Unique aggregates announced from the AfriNIC address blocks: 19328 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.48 AfriNIC Region origin ASes announcing only one prefix: 729 AfriNIC Region transit ASes present in the Internet Routing Table: 389 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1380 Number of AfriNIC addresses announced to Internet: 103435776 Equivalent to 6 /8s, 42 /16s and 78 /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 13788 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5926 828 502 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4877 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4539 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4054 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3662 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3473 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3344 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 2998 860 530 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2839 179 542 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 14495 41225 5664 AMAZON-02 - Amazon.com, Inc., US 22773 4783 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4660 309 1028 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3720 1305 77 SHAW - Shaw Communications, CA 396982 3296 4857 489 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3205 8765 816 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2760 1225 2119 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2699 221 899 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 7164 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3947 3389 111 AKAMAI-ASN1, NL 9009 3819 353 2243 M247, RO 12389 3147 2322 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2699 195 1982 CDNEXT, GB 34984 2454 365 571 TELLCOM-AS, TR 8452 1724 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 12826 3294 609 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2463 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 22884 1057 71 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2393 95 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 2025 648 34 RAYA-AS, EG 36992 1848 1528 336 ETISALAT-MISR, EG 24863 1274 388 13 LINKdotNET-AS, EG 36935 1246 523 46 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1070 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 36914 559 82 3 KENET-AS, KE 15399 550 57 61 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 14495 41225 5664 AMAZON-02 - Amazon.com, Inc., US 9808 13788 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12826 3294 609 UNINET, MX 12479 7164 1711 149 UNI2-AS, ES 7545 5926 828 502 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4877 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4783 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4660 309 1028 CABLEONE - CABLE ONE, INC., US 18403 4539 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 13788 13668 CHINAMOBILE-CN China Mobile Communications Grou 8151 12826 12217 UNINET, MX 12479 7164 7015 UNI2-AS, ES 7545 5926 5424 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4877 4560 BBIL-AP BHARTI Airtel Ltd., IN 18403 4539 4514 FPT-AS-AP FPT Telecom Company, VN 22773 4783 4418 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4054 4025 VIETEL-AS-AP Viettel Group, VN 20940 3947 3836 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 /13:584 /14:1196 /15:2109 /16:13602 /17:8297 /18:13322 /19:25449 /20:45796 /21:52287 /22:113761 /23:107195 /24:653763 /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 7000 12826 UNINET, MX 12479 6106 7164 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3521 4660 CABLEONE - CABLE ONE, INC., US 6327 3501 3720 SHAW - Shaw Communications, CA 22773 3055 4783 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2609 14495 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2661 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) ---------------------------------------------- 1:2479 2:1787 3:991 4:5 5:5109 6:196 7:6 8:1490 9:39 11:172 12:1186 13:667 14:2675 15:456 16:169 17:423 18:904 20:600 21:4 22:188 23:8261 24:2855 25:2 27:2826 28:1 29:19 31:3416 32:36 34:86 35:283 36:4641 37:4448 38:10002 39:1276 40:423 41:4546 42:2194 43:3042 44:449 45:19826 46:4887 47:409 48:117 49:2210 50:2020 51:626 52:1296 54:273 55:1121 56:11 57:319 58:2328 59:1380 60:1173 61:3124 62:3127 63:1733 64:6294 65:2132 66:6053 67:3257 68:1500 69:4212 70:1052 71:616 72:3162 74:3012 75:1487 76:591 77:2916 78:1943 79:1797 80:2340 81:2200 82:4039 83:1447 84:2103 85:3793 86:1092 87:2326 88:1348 89:4692 90:784 91:8421 92:2826 93:3013 94:4344 95:4640 96:1448 97:315 98:941 99:807 100:68 101:1458 102:4457 103:32453 104:5335 105:819 106:906 107:2865 108:1242 109:4214 110:2289 111:4125 112:3138 113:1967 114:2264 115:2326 116:2174 117:3494 118:2986 119:2088 120:2693 121:1557 122:2980 123:2252 124:1656 125:2985 126:125 128:1702 129:971 130:1622 131:2472 132:809 133:475 134:1663 135:610 136:1606 137:1550 138:3167 139:1638 140:1768 141:1720 142:2524 143:2110 144:1712 145:644 146:2208 147:2178 148:2760 149:3087 150:1357 151:2731 152:2319 153:1061 154:9552 155:2316 156:4464 157:2293 158:1518 159:2808 160:3830 161:1958 162:4032 163:2474 164:2039 165:2630 166:1284 167:2255 168:3980 169:894 170:5525 171:1118 172:4553 173:3464 174:880 175:1364 176:3819 177:4828 178:4371 179:2296 180:3018 181:4488 182:4020 183:2839 184:2021 185:21798 186:5761 187:4957 188:4607 189:4541 190:9807 191:1559 192:11487 193:9592 194:7861 195:5809 196:3332 197:3266 198:6275 199:6077 200:8233 201:6415 202:10711 203:10655 204:4785 205:3779 206:4532 207:3995 208:4389 209:5465 210:4770 211:2688 212:4998 213:4122 214:1063 215:47 216:7295 217:3550 218:1699 219:421 220:2200 221:1311 222:929 223:3396 End of report