IPv4 R&E Routing Table Report 21:10 GMT Tue 05 Aug, 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: 993619 Prefixes after maximum aggregation (per Origin AS): 384568 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488683 Number of IPv4 prefixes with a valid ROA: 547353 Number of IPv4 prefixes with an invalid ROA: 476 Number of IPv4 prefixes with no ROA: 445790 Total ASes present in the Internet Routing Table: 77091 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66003 Origin ASes announcing only one prefix: 26946 Transit ASes present in the Internet Routing Table: 11088 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 12 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1094 Number of instances of unregistered ASNs: 1138 Number of 32-bit ASNs allocated by the RIRs: 47054 Number of 32-bit ASNs visible in the Routing Table: 38701 Prefixes from 32-bit ASNs in the Routing Table: 206586 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 437 Number of addresses announced to Internet: 3107538432 Equivalent to 185 /8s, 57 /16s and 70 /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: 324015 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263578 Total APNIC prefixes after maximum aggregation: 78222 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254573 Unique aggregates announced from the APNIC address blocks: 105049 APNIC Region origin ASes present in the Internet Routing Table: 14726 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 4495 APNIC Region transit ASes present in the Internet Routing Table: 1981 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10260 Number of APNIC addresses announced to Internet: 749591296 Equivalent to 44 /8s, 173 /16s and 219 /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: 292110 Total ARIN prefixes after maximum aggregation: 132390 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293865 Unique aggregates announced from the ARIN address blocks: 141761 ARIN Region origin ASes present in the Internet Routing Table: 19258 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7044 ARIN Region transit ASes present in the Internet Routing Table: 1993 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5276 Number of ARIN addresses announced to Internet: 1349431552 Equivalent to 80 /8s, 110 /16s and 177 /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: 276998 Total RIPE prefixes after maximum aggregation: 136505 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275930 Unique aggregates announced from the RIPE address blocks: 178309 RIPE Region origin ASes present in the Internet Routing Table: 28980 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12058 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12616 Number of RIPE addresses announced to Internet: 732002560 Equivalent to 43 /8s, 161 /16s and 121 /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: 124899 Total LACNIC prefixes after maximum aggregation: 29908 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 121206 Unique aggregates announced from the LACNIC address blocks: 49186 LACNIC Region origin ASes present in the Internet Routing Table: 11271 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2640 LACNIC Region transit ASes present in the Internet Routing Table: 2554 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9239 Number of LACNIC addresses announced to Internet: 171151872 Equivalent to 10 /8s, 51 /16s and 146 /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: 34940 Total AfriNIC prefixes after maximum aggregation: 6830 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 47607 Unique aggregates announced from the AfriNIC address blocks: 13996 AfriNIC Region origin ASes present in the Internet Routing Table: 1946 AfriNIC Prefixes per ASN: 24.46 AfriNIC Region origin ASes announcing only one prefix: 709 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1310 Number of AfriNIC addresses announced to Internet: 105114112 Equivalent to 6 /8s, 67 /16s and 234 /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 12554 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4586 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3283 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2916 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2887 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2170 427 183 TATACOMM-AS TATA Communications formerly 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 13711 41054 5267 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3467 8770 856 COGENT-174, US 22773 3341 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3202 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 3054 1295 2218 AKAMAI-AS, US 4155 2901 220 1737 USDA-1, 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 7569 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4028 3395 127 AKAMAI-ASN1, NL 9009 3855 365 2168 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2310 163 1679 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1579 1852 14 TE-AS TE-AS, EG 203020 1524 191 672 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 12334 3272 578 UNINET, MX 10620 3480 473 1036 Telmex Colombia S.A., CO 13999 2522 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1372 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1099 267 39 Techtel LMDS Comunicaciones Interactivas 22884 1068 71 373 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1019 373 162 Axtel, S.A.B. de C.V., MX 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 1766 660 28 RAYA-AS, EG 29571 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1417 1494 375 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1233 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 966 520 43 Vodafone-, EG 36914 577 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 542 57 59 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 13711 41054 5267 AMAZON-02, US 9808 12554 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12334 3272 578 UNINET, MX 12479 7569 1711 149 UNI2-AS, ES 7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4586 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4028 3395 127 AKAMAI-ASN1, NL 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 12554 12438 CHINAMOBILE-CN China Mobile Communications Grou 8151 12334 11756 UNINET, MX 12479 7569 7420 UNI2-AS, ES 7545 6138 5514 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4586 4561 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4463 4152 BBIL-AP BHARTI Airtel Ltd., IN 20940 4028 3901 AKAMAI-ASN1, NL 7552 3909 3882 VIETEL-AS-AP Viettel Group, VN 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 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 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 23.143.76.0/24 Origin: 401896 MISIU-USA, US 23.143.76.0/24 Transit: 20473 AS-VULTR, 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 /11:92 /12:298 /13:581 /14:1209 /15:2153 /16:13801 /17:8223 /18:13503 /19:24583 /20:43969 /21:51792 /22:112167 /23:103051 /24:618125 /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 6551 12334 UNINET, MX 12479 6530 7569 UNI2-AS, ES 11492 3619 4827 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2493 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2358 13711 AMAZON-02, US 30036 2294 2635 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2196 3480 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) ---------------------------------------------- 1:2421 2:1529 3:870 4:10 5:4754 6:163 7:6 8:1543 9:2 11:172 12:1337 13:451 14:2579 15:368 16:286 17:376 18:898 20:562 21:4 22:188 23:7788 24:2719 25:2 27:2798 29:19 31:3360 32:35 33:1 34:80 35:263 36:4161 37:4566 38:9531 39:952 40:249 41:4284 42:2061 43:2690 44:381 45:18643 46:5092 47:336 49:1893 50:2046 51:591 52:1553 54:325 55:1106 56:11 57:272 58:2188 59:1293 60:1184 61:2883 62:2997 63:1780 64:5555 65:2154 66:4763 67:3102 68:1067 69:3914 70:1038 71:633 72:2849 74:2814 75:1507 76:610 77:2781 78:1917 79:1717 80:2207 81:2060 82:3216 83:1439 84:1923 85:3476 86:1095 87:2142 88:1347 89:4419 90:775 91:8415 92:2736 93:2947 94:4081 95:4420 96:1470 97:309 98:954 99:692 100:71 101:1216 102:3898 103:32253 104:5274 105:808 106:976 107:2641 108:1260 109:4192 110:2234 111:3467 112:2386 113:1846 114:1969 115:2246 116:2073 117:2661 118:2979 119:1910 120:2178 121:1333 122:2795 123:2246 124:1659 125:2875 126:91 128:1626 129:971 130:1307 131:2073 132:787 133:450 134:1605 135:351 136:1466 137:1319 138:2841 139:1596 140:1630 141:1528 142:1921 143:1961 144:1174 145:567 146:2185 147:2103 148:2728 149:2949 150:1278 151:2267 152:2097 153:591 154:7586 155:1858 156:3061 157:1934 158:1358 159:2528 160:3609 161:1907 162:3881 163:2252 164:1871 165:2447 166:1530 167:2019 168:3991 169:787 170:5178 171:999 172:4248 173:3413 174:919 175:1322 176:3736 177:4800 178:3946 179:2314 180:2587 181:4141 182:3592 183:2216 184:2082 185:21625 186:5269 187:4680 188:4274 189:4376 190:9552 191:1511 192:11352 193:9477 194:7780 195:5597 196:3283 197:3177 198:6235 199:8609 200:8225 201:6412 202:10387 203:10662 204:4610 205:3614 206:4551 207:3646 208:4292 209:5203 210:4695 211:2603 212:4616 213:3824 214:1028 215:48 216:6802 217:3255 218:1409 219:398 220:2149 221:1207 222:741 223:2735 End of report