IPv4 R&E Routing Table Report 21:10 GMT Sun 15 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: 1036195 Prefixes after maximum aggregation (per Origin AS): 398435 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511689 Number of IPv4 prefixes with a valid ROA: 624268 Number of IPv4 prefixes with an invalid ROA: 104 Number of IPv4 prefixes with no ROA: 411823 Total ASes present in the Internet Routing Table: 78117 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66864 Origin ASes announcing only one prefix: 27277 Transit ASes present in the Internet Routing Table: 11253 Transit-only ASes present in the Internet Routing Table: 591 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: 1054 Number of instances of unregistered ASNs: 1084 Number of 32-bit ASNs allocated by the RIRs: 48978 Number of 32-bit ASNs visible in the Routing Table: 40116 Prefixes from 32-bit ASNs in the Routing Table: 223928 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: 407 Number of addresses announced to Internet: 3108168960 Equivalent to 185 /8s, 66 /16s and 229 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 337486 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280831 Total APNIC prefixes after maximum aggregation: 81906 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267942 Unique aggregates announced from the APNIC address blocks: 107251 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: 4637 APNIC Region transit ASes present in the Internet Routing Table: 2030 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: 10687 Number of APNIC addresses announced to Internet: 751861504 Equivalent to 44 /8s, 208 /16s and 127 /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: 304810 Total ARIN prefixes after maximum aggregation: 137210 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303526 Unique aggregates announced from the ARIN address blocks: 147165 ARIN Region origin ASes present in the Internet Routing Table: 19399 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7072 ARIN Region transit ASes present in the Internet Routing Table: 1986 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: 5509 Number of ARIN addresses announced to Internet: 1348837120 Equivalent to 80 /8s, 101 /16s and 159 /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: 285615 Total RIPE prefixes after maximum aggregation: 141039 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 288195 Unique aggregates announced from the RIPE address blocks: 187295 RIPE Region origin ASes present in the Internet Routing Table: 29312 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: 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: 13172 Number of RIPE addresses announced to Internet: 733531904 Equivalent to 43 /8s, 184 /16s and 207 /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: 127103 Total LACNIC prefixes after maximum aggregation: 30657 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122855 Unique aggregates announced from the LACNIC address blocks: 50255 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2587 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: 170365184 Equivalent to 10 /8s, 39 /16s and 145 /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: 6945 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53269 Unique aggregates announced from the AfriNIC address blocks: 19364 AfriNIC Region origin ASes present in the Internet Routing Table: 2010 AfriNIC Prefixes per ASN: 26.50 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: 1378 Number of AfriNIC addresses announced to Internet: 103377920 Equivalent to 6 /8s, 41 /16s and 108 /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 13728 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5946 829 522 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4580 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4013 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3464 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3006 865 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2876 181 567 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 14464 41219 5560 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 3188 8764 841 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 2696 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 7205 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 3150 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 12797 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 1229 521 44 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 552 82 3 KENET-AS, KE 15399 547 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 14464 41219 5560 AMAZON-02 - Amazon.com, Inc., US 9808 13728 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12797 3302 596 UNINET, MX 12479 7205 1711 149 UNI2-AS, ES 7545 5946 829 522 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 4580 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 13728 13608 CHINAMOBILE-CN China Mobile Communications Grou 8151 12797 12201 UNINET, MX 12479 7205 7056 UNI2-AS, ES 7545 5946 5424 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4580 4555 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 4013 3984 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 /16:13615 /17:8294 /18:13308 /19:25421 /20:45745 /21:52337 /22:113789 /23:107434 /24:651911 /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 6960 12797 UNINET, MX 12479 6142 7205 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 2579 14464 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) ---------------------------------------------- 1:2485 2:1650 3:1002 4:5 5:5118 6:196 7:6 8:1499 9:29 11:172 12:1194 13:647 14:2654 15:459 16:167 17:420 18:915 20:603 21:4 22:188 23:8254 24:2828 25:2 27:2830 28:1 29:19 31:3411 32:30 34:87 35:292 36:4615 37:4458 38:9947 39:1267 40:408 41:4526 42:2104 43:2993 44:446 45:19910 46:4922 47:408 48:89 49:2187 50:2067 51:602 52:1307 54:280 55:1108 56:11 57:321 58:2335 59:1353 60:1173 61:3110 62:3121 63:1759 64:6253 65:2116 66:6011 67:3262 68:1500 69:4208 70:1039 71:622 72:3115 74:2992 75:1496 76:592 77:2860 78:1911 79:1791 80:2337 81:2205 82:3997 83:1446 84:2049 85:3808 86:1102 87:2285 88:1353 89:4686 90:797 91:8444 92:2839 93:3014 94:4319 95:4638 96:1444 97:313 98:948 99:800 100:68 101:1444 102:4439 103:32498 104:5471 105:814 106:924 107:2853 108:1221 109:4218 110:2288 111:4067 112:3152 113:1979 114:2178 115:2320 116:2171 117:3432 118:3004 119:2057 120:2686 121:1522 122:2984 123:2268 124:1619 125:2978 126:125 128:1701 129:969 130:1604 131:2482 132:804 133:463 134:1646 135:589 136:1596 137:1545 138:3177 139:1647 140:1790 141:1589 142:2561 143:2155 144:1741 145:632 146:2204 147:2164 148:2737 149:3058 150:1302 151:2689 152:2256 153:1025 154:9509 155:2307 156:4449 157:2281 158:1492 159:2772 160:3831 161:1951 162:4026 163:2405 164:2030 165:2625 166:1297 167:2253 168:3986 169:893 170:5553 171:1091 172:4627 173:3462 174:883 175:1354 176:3829 177:4823 178:4330 179:2326 180:3008 181:4455 182:4017 183:2826 184:2016 185:21817 186:5697 187:4977 188:4557 189:4542 190:9754 191:1573 192:11515 193:9595 194:7847 195:5729 196:3316 197:3221 198:6277 199:6110 200:8204 201:6387 202:10710 203:10643 204:4757 205:3782 206:4532 207:4020 208:4384 209:5449 210:4783 211:2684 212:5005 213:4103 214:1051 215:46 216:7268 217:3547 218:1678 219:418 220:2156 221:1316 222:936 223:3326 End of report