IPv4 R&E Routing Table Report 21:10 GMT Sat 21 Jun, 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: 985805 Prefixes after maximum aggregation (per Origin AS): 380390 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482269 Number of IPv4 prefixes with a valid ROA: 549577 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 436083 Total ASes present in the Internet Routing Table: 76855 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65844 Origin ASes announcing only one prefix: 26873 Transit ASes present in the Internet Routing Table: 11011 Transit-only ASes present in the Internet Routing Table: 552 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN (139693) 35 Prefixes from unregistered ASNs in the Routing Table: 1151 Number of instances of unregistered ASNs: 1189 Number of 32-bit ASNs allocated by the RIRs: 46694 Number of 32-bit ASNs visible in the Routing Table: 38366 Prefixes from 32-bit ASNs in the Routing Table: 203898 Number of bogon 32-bit ASNs visible in the Routing Table: 104 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 452 Number of addresses announced to Internet: 3105799936 Equivalent to 185 /8s, 30 /16s and 191 /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: 322661 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259075 Total APNIC prefixes after maximum aggregation: 77319 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250366 Unique aggregates announced from the APNIC address blocks: 104379 APNIC Region origin ASes present in the Internet Routing Table: 14618 APNIC Prefixes per ASN: 17.13 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1959 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10144 Number of APNIC addresses announced to Internet: 748674816 Equivalent to 44 /8s, 159 /16s and 223 /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: 291194 Total ARIN prefixes after maximum aggregation: 131289 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 293097 Unique aggregates announced from the ARIN address blocks: 139461 ARIN Region origin ASes present in the Internet Routing Table: 19225 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 2001 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5228 Number of ARIN addresses announced to Internet: 1349651200 Equivalent to 80 /8s, 114 /16s and 11 /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: 274998 Total RIPE prefixes after maximum aggregation: 134819 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273664 Unique aggregates announced from the RIPE address blocks: 175485 RIPE Region origin ASes present in the Internet Routing Table: 28899 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12048 RIPE Region transit ASes present in the Internet Routing Table: 3977 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12491 Number of RIPE addresses announced to Internet: 731025408 Equivalent to 43 /8s, 146 /16s and 144 /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: 124092 Total LACNIC prefixes after maximum aggregation: 29571 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120612 Unique aggregates announced from the LACNIC address blocks: 48963 LACNIC Region origin ASes present in the Internet Routing Table: 11265 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2504 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9215 Number of LACNIC addresses announced to Internet: 171297536 Equivalent to 10 /8s, 53 /16s and 203 /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: 35295 Total AfriNIC prefixes after maximum aggregation: 6647 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 47613 Unique aggregates announced from the AfriNIC address blocks: 13579 AfriNIC Region origin ASes present in the Internet Routing Table: 1925 AfriNIC Prefixes per ASN: 24.73 AfriNIC Region origin ASes announcing only one prefix: 695 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: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1288 Number of AfriNIC addresses announced to Internet: 104946944 Equivalent to 6 /8s, 65 /16s and 93 /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 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 7545 6183 846 650 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4431 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4330 534 309 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3268 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2889 856 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2191 811 178 CMNET-JIANGSU-AP China Mobile communicati 4755 2176 434 194 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 13639 40956 5231 AMAZON-02, US 11492 4780 317 603 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 22773 3608 3037 209 ASN-CXA-ALL-CCI-22773-RDC, US 174 3537 8743 861 COGENT-174, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3191 3854 427 GOOGLE-CLOUD-PLATFORM, US 16625 3127 1313 2259 AKAMAI-AS, US 36352 2821 230 858 AS-COLOCROSSING, 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 7675 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 4062 3395 127 AKAMAI-ASN1, NL 9009 3896 358 2100 M247, RO 12389 3115 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 576 TELLCOM-AS, TR 212238 2312 169 1694 CDNEXT, GB 8452 1633 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1413 94 737 CLOUVIDER Clouvider - Global ASN, GB 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 12216 3256 574 UNINET, MX 10620 3505 481 1017 Telmex Colombia S.A., CO 13999 2536 537 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1208 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1198 371 22 Telefonica del Peru S.A.A., PE 22884 1080 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1048 2503 52 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 1821 644 27 RAYA-AS, EG 24863 1621 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1078 523 47 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 564 82 3 KENET-AS, KE 15399 530 56 53 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 13639 40956 5231 AMAZON-02, US 8151 12216 3256 574 UNINET, MX 9808 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 12479 7675 1713 148 UNI2-AS, ES 7545 6183 846 650 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4780 317 603 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 18403 4431 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4330 534 309 BBIL-AP BHARTI Airtel Ltd., IN 20940 4062 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 8151 12216 11642 UNINET, MX 9808 11227 11122 CHINAMOBILE-CN China Mobile Communications Grou 12479 7675 7527 UNI2-AS, ES 7545 6183 5533 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4431 4406 FPT-AS-AP FPT Telecom Company, VN 11492 4780 4177 CABLEONE, US 9498 4330 4021 BBIL-AP BHARTI Airtel Ltd., IN 20940 4062 3935 AKAMAI-ASN1, NL 7552 3919 3893 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 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 Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-spar 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: 6939 HURRICANE, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:300 /13:584 /14:1209 /15:2152 /16:13849 /17:8259 /18:13532 /19:24566 /20:44008 /21:51741 /22:112134 /23:102886 /24:610421 /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 12479 6597 7675 UNI2-AS, ES 8151 6430 12216 UNINET, MX 11492 3576 4780 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2738 3608 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13639 AMAZON-02, US 30036 2258 2600 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2192 3505 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) ---------------------------------------------- 1:2376 2:1468 3:827 4:10 5:4756 6:162 7:6 8:1570 9:1 11:172 12:1347 13:448 14:2525 15:363 16:285 17:376 18:921 20:549 21:4 22:188 23:7642 24:2877 25:2 27:2780 29:19 31:3282 32:35 33:1 34:80 35:257 36:3151 37:4563 38:9353 39:906 40:174 41:4260 42:1978 43:2609 44:383 45:18565 46:5112 47:319 49:1945 50:1885 51:591 52:1564 54:324 55:1082 56:11 57:270 58:2216 59:1185 60:1171 61:2790 62:2922 63:1798 64:5495 65:2062 66:4674 67:3083 68:1141 69:3944 70:1131 71:631 72:2878 74:2803 75:1516 76:622 77:2733 78:1879 79:1711 80:2208 81:2052 82:3178 83:1444 84:1875 85:3450 86:1095 87:2124 88:1340 89:4401 90:770 91:8391 92:2725 93:2932 94:4030 95:4370 96:1472 97:311 98:1023 99:687 100:72 101:1406 102:3871 103:32273 104:5153 105:764 106:1042 107:2685 108:1245 109:4088 110:2224 111:3283 112:2125 113:1816 114:1990 115:2161 116:2059 117:2574 118:2879 119:1904 120:2053 121:1378 122:2792 123:2198 124:1589 125:2866 126:91 128:1613 129:952 130:1305 131:2050 132:783 133:451 134:1551 135:349 136:1349 137:1310 138:2848 139:1590 140:1616 141:1502 142:1916 143:1873 144:1153 145:545 146:2184 147:2116 148:2690 149:2933 150:1261 151:1977 152:2081 153:586 154:7346 155:1755 156:2829 157:1917 158:1328 159:2496 160:3605 161:1854 162:3868 163:2232 164:1820 165:2006 166:1496 167:1977 168:3978 169:794 170:5129 171:1009 172:4472 173:3341 174:928 175:1301 176:3710 177:4723 178:3741 179:2318 180:2635 181:4079 182:3463 183:2078 184:2129 185:21443 186:5174 187:4597 188:4257 189:4315 190:9579 191:1488 192:11321 193:9481 194:7797 195:5537 196:3295 197:3245 198:6195 199:8498 200:8213 201:6382 202:10281 203:10682 204:4579 205:3664 206:4472 207:3584 208:4297 209:5171 210:4617 211:2537 212:4585 213:3755 214:1023 215:48 216:6779 217:3191 218:1355 219:390 220:2084 221:1147 222:725 223:2479 End of report