IPv4 R&E Routing Table Report 21:10 GMT Sun 30 Nov, 2025 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: 1017133 Prefixes after maximum aggregation (per Origin AS): 393252 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 503771 Number of IPv4 prefixes with a valid ROA: 592871 Number of IPv4 prefixes with an invalid ROA: 126 Number of IPv4 prefixes with no ROA: 424136 Total ASes present in the Internet Routing Table: 77584 Prefixes per ASN: 13.11 Origin-only ASes present in the Internet Routing Table: 66424 Origin ASes announcing only one prefix: 27113 Transit ASes present in the Internet Routing Table: 11160 Transit-only ASes present in the Internet Routing Table: 569 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: 956 Number of instances of unregistered ASNs: 986 Number of 32-bit ASNs allocated by the RIRs: 48107 Number of 32-bit ASNs visible in the Routing Table: 39386 Prefixes from 32-bit ASNs in the Routing Table: 216648 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: 449 Number of addresses announced to Internet: 3100371712 Equivalent to 184 /8s, 203 /16s and 235 /24s Percentage of available address space announced: 83.7 Percentage of allocated address space announced: 83.7 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: 332793 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 273958 Total APNIC prefixes after maximum aggregation: 80924 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 261770 Unique aggregates announced from the APNIC address blocks: 106267 APNIC Region origin ASes present in the Internet Routing Table: 14888 APNIC Prefixes per ASN: 17.58 APNIC Region origin ASes announcing only one prefix: 4528 APNIC Region transit ASes present in the Internet Routing Table: 2004 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10448 Number of APNIC addresses announced to Internet: 752935424 Equivalent to 44 /8s, 224 /16s and 226 /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: 298807 Total ARIN prefixes after maximum aggregation: 134421 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298472 Unique aggregates announced from the ARIN address blocks: 145572 ARIN Region origin ASes present in the Internet Routing Table: 19388 ARIN Prefixes per ASN: 15.39 ARIN Region origin ASes announcing only one prefix: 7116 ARIN Region transit ASes present in the Internet Routing Table: 1990 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: 5426 Number of ARIN addresses announced to Internet: 1337402880 Equivalent to 79 /8s, 183 /16s and 38 /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: 282281 Total RIPE prefixes after maximum aggregation: 139912 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283101 Unique aggregates announced from the RIPE address blocks: 183564 RIPE Region origin ASes present in the Internet Routing Table: 29121 RIPE Prefixes per ASN: 9.72 RIPE Region origin ASes announcing only one prefix: 12079 RIPE Region transit ASes present in the Internet Routing Table: 4029 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12845 Number of RIPE addresses announced to Internet: 735810048 Equivalent to 43 /8s, 219 /16s and 146 /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: 125668 Total LACNIC prefixes after maximum aggregation: 30457 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121655 Unique aggregates announced from the LACNIC address blocks: 49667 LACNIC Region origin ASes present in the Internet Routing Table: 11310 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2559 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: 9311 Number of LACNIC addresses announced to Internet: 170705920 Equivalent to 10 /8s, 44 /16s and 196 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35463 Total AfriNIC prefixes after maximum aggregation: 6893 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 51685 Unique aggregates announced from the AfriNIC address blocks: 18316 AfriNIC Region origin ASes present in the Internet Routing Table: 1993 AfriNIC Prefixes per ASN: 25.93 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1356 Number of AfriNIC addresses announced to Internet: 103285504 Equivalent to 6 /8s, 40 /16s and 3 /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 13505 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6066 832 593 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4581 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4398 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4009 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3711 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3330 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3314 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2943 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2493 274 1922 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14230 37207 5389 AMAZON-02, US 22773 4776 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 83 SHAW, CA 396982 3303 4861 481 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 3003 1288 2186 AKAMAI-AS, US 36352 2822 231 914 AS-COLOCROSSING, US 174 2658 8766 836 COGENT-174, 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 7295 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4022 380 2287 M247, RO 20940 3988 3395 126 AKAMAI-ASN1, NL 12389 3145 2317 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2536 180 1834 CDNEXT, GB 34984 2420 363 577 TELLCOM-AS, TR 8452 1698 1852 14 TE-AS TE-AS, EG 203020 1611 241 779 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 12671 3301 571 UNINET, MX 10620 3457 463 1100 Telmex Colombia S.A., CO 13999 2509 509 348 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1372 2432 263 Claro NXT Telecomunicacoes Ltda, BR 3816 1348 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1336 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1056 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 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 1970 630 32 RAYA-AS, EG 36992 1681 1508 399 ETISALAT-MISR, EG 24863 1263 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1038 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 564 82 3 KENET-AS, KE 15399 545 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 14230 37207 5389 AMAZON-02, US 9808 13505 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12671 3301 571 UNINET, MX 12479 7295 1711 149 UNI2-AS, ES 7545 6066 832 593 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4776 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4581 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4398 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 13505 13388 CHINAMOBILE-CN China Mobile Communications Grou 8151 12671 12100 UNINET, MX 12479 7295 7146 UNI2-AS, ES 7545 6066 5473 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4776 4408 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4398 4374 FPT-AS-AP FPT Telecom Company, VN 9498 4581 4246 BBIL-AP BHARTI Airtel Ltd., IN 7552 4009 3981 VIETEL-AS-AP Viettel Group, VN 20940 3988 3862 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, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 174 COGENT-174, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, 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 /10:41 /11:94 /12:298 /13:582 /14:1202 /15:2094 /16:13678 /17:8229 /18:13498 /19:24779 /20:44566 /21:52038 /22:113066 /23:105226 /24:637711 /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 6852 12671 UNINET, MX 12479 6232 7295 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 3049 4776 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2431 14230 AMAZON-02, US 30036 2309 2652 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3457 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) ---------------------------------------------- 1:2439 2:1571 3:971 4:10 5:4950 6:190 7:6 8:1501 9:6 11:172 12:1233 13:570 14:2608 15:413 16:303 17:387 18:912 20:587 21:4 22:188 23:8130 24:2554 25:2 27:2806 29:19 31:3392 32:31 33:1 34:81 35:284 36:4584 37:4463 38:9275 39:1188 40:456 41:4436 42:1960 43:2833 44:403 45:19496 46:5109 47:377 49:2151 50:2048 51:597 52:1567 54:288 55:1101 56:11 57:303 58:2295 59:1314 60:1185 61:3049 62:3100 63:1747 64:5961 65:2128 66:5930 67:3248 68:1495 69:4180 70:1023 71:627 72:3017 74:2930 75:1517 76:599 77:2765 78:1919 79:1780 80:2293 81:2097 82:3834 83:1467 84:2024 85:3643 86:1101 87:2152 88:1340 89:4590 90:842 91:8434 92:2839 93:3013 94:4228 95:4565 96:1451 97:312 98:958 99:773 100:67 101:1196 102:4307 103:32229 104:5510 105:796 106:904 107:2806 108:1199 109:4245 110:2292 111:3894 112:2776 113:1908 114:2096 115:2283 116:2134 117:3123 118:3022 119:2047 120:2370 121:1513 122:2948 123:2297 124:1602 125:2894 126:125 128:1617 129:965 130:1514 131:2250 132:771 133:462 134:1613 135:395 136:1499 137:1335 138:2886 139:1603 140:1726 141:1548 142:2319 143:2127 144:1339 145:633 146:2189 147:2169 148:2791 149:2882 150:1301 151:2641 152:2281 153:690 154:9217 155:2248 156:4117 157:2212 158:1453 159:2678 160:3754 161:1993 162:3999 163:2333 164:1960 165:2600 166:1308 167:2137 168:3886 169:796 170:5447 171:1116 172:4498 173:3415 174:906 175:1343 176:3773 177:4713 178:4306 179:2300 180:2816 181:4311 182:3839 183:2605 184:2045 185:21713 186:5493 187:4767 188:4438 189:4493 190:9715 191:1552 192:11449 193:9502 194:7863 195:5612 196:3270 197:3184 198:6233 199:6096 200:8227 201:6384 202:10443 203:10578 204:4641 205:3719 206:4416 207:3905 208:4256 209:5454 210:4774 211:2673 212:4899 213:4014 214:1042 215:52 216:7120 217:3355 218:1583 219:403 220:2198 221:1283 222:768 223:3159 End of report