IPv4 R&E Routing Table Report 21:10 GMT Fri 18 Jul, 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: 988387 Prefixes after maximum aggregation (per Origin AS): 383090 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486692 Number of IPv4 prefixes with a valid ROA: 556083 Number of IPv4 prefixes with an invalid ROA: 135 Number of IPv4 prefixes with no ROA: 432169 Total ASes present in the Internet Routing Table: 76993 Prefixes per ASN: 12.84 Origin-only ASes present in the Internet Routing Table: 65912 Origin ASes announcing only one prefix: 26893 Transit ASes present in the Internet Routing Table: 11081 Transit-only ASes present in the Internet Routing Table: 570 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 7438) 33 Prefixes from unregistered ASNs in the Routing Table: 1155 Number of instances of unregistered ASNs: 1191 Number of 32-bit ASNs allocated by the RIRs: 46864 Number of 32-bit ASNs visible in the Routing Table: 38569 Prefixes from 32-bit ASNs in the Routing Table: 205563 Number of bogon 32-bit ASNs visible in the Routing Table: 99 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 465 Number of addresses announced to Internet: 3107029504 Equivalent to 185 /8s, 49 /16s and 130 /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: 322568 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261452 Total APNIC prefixes after maximum aggregation: 77814 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 252334 Unique aggregates announced from the APNIC address blocks: 104913 APNIC Region origin ASes present in the Internet Routing Table: 14703 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4498 APNIC Region transit ASes present in the Internet Routing Table: 1987 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: 10245 Number of APNIC addresses announced to Internet: 749157888 Equivalent to 44 /8s, 167 /16s and 62 /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: 291301 Total ARIN prefixes after maximum aggregation: 132012 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293110 Unique aggregates announced from the ARIN address blocks: 141060 ARIN Region origin ASes present in the Internet Routing Table: 19221 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7024 ARIN Region transit ASes present in the Internet Routing Table: 1997 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: 5253 Number of ARIN addresses announced to Internet: 1349396224 Equivalent to 80 /8s, 110 /16s and 39 /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: 276471 Total RIPE prefixes after maximum aggregation: 136054 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275503 Unique aggregates announced from the RIPE address blocks: 177393 RIPE Region origin ASes present in the Internet Routing Table: 28948 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12043 RIPE Region transit ASes present in the Internet Routing Table: 3995 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12560 Number of RIPE addresses announced to Internet: 732202240 Equivalent to 43 /8s, 164 /16s and 133 /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: 124576 Total LACNIC prefixes after maximum aggregation: 29727 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120899 Unique aggregates announced from the LACNIC address blocks: 49130 LACNIC Region origin ASes present in the Internet Routing Table: 11261 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2642 LACNIC Region transit ASes present in the Internet Routing Table: 2537 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9229 Number of LACNIC addresses announced to Internet: 171068672 Equivalent to 10 /8s, 50 /16s and 77 /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: 33432 Total AfriNIC prefixes after maximum aggregation: 6721 AfriNIC Deaggregation factor: 4.97 Prefixes being announced from the AfriNIC address blocks: 46075 Unique aggregates announced from the AfriNIC address blocks: 13803 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 24.12 AfriNIC Region origin ASes announcing only one prefix: 686 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1282 Number of AfriNIC addresses announced to Internet: 104950528 Equivalent to 6 /8s, 65 /16s and 107 /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 11823 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6158 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4496 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2905 863 520 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2736 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2183 434 193 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 13688 40974 5272 AMAZON-02, US 11492 4812 319 611 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3446 8771 858 COGENT-174, US 22773 3342 3032 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3196 3855 432 GOOGLE-CLOUD-PLATFORM, US 16625 3066 1298 2225 AKAMAI-AS, US 4155 2867 218 1736 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 7600 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4045 3395 127 AKAMAI-ASN1, NL 9009 3786 361 2107 M247, RO 12389 3120 2317 873 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2321 164 1689 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1545 1852 14 TE-AS TE-AS, EG 203020 1475 163 648 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 12305 3255 575 UNINET, MX 10620 3514 482 1020 Telmex Colombia S.A., CO 13999 2529 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1201 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1068 71 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1022 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 1733 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1221 1482 324 ETISALAT-MISR, EG 36935 822 520 43 Vodafone-, EG 37069 702 1112 11 MOBINIL, EG 24863 660 389 22 LINKdotNET-AS, EG 36914 572 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 542 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 13688 40974 5272 AMAZON-02, US 8151 12305 3255 575 UNINET, MX 9808 11823 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7600 1712 148 UNI2-AS, ES 7545 6158 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4812 319 611 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4496 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4045 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 12305 11730 UNINET, MX 9808 11823 11707 CHINAMOBILE-CN China Mobile Communications Grou 12479 7600 7452 UNI2-AS, ES 7545 6158 5536 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4496 4471 FPT-AS-AP FPT Telecom Company, VN 11492 4812 4201 CABLEONE, US 9498 4445 4134 BBIL-AP BHARTI Airtel Ltd., IN 20940 4045 3918 AKAMAI-ASN1, NL 7552 3918 3891 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 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 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: 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 23.141.252.0/24 Origin: 26548 PUREVOLTAGE-INC, US 23.141.252.0/24 Transit: 6939 HURRICANE, 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 /11:92 /12:298 /13:582 /14:1210 /15:2149 /16:13772 /17:8225 /18:13502 /19:24517 /20:43620 /21:51713 /22:111409 /23:102819 /24:614407 /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 6542 7600 UNI2-AS, ES 8151 6526 12305 UNINET, MX 11492 3606 4812 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 13688 AMAZON-02, US 30036 2270 2611 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2201 3514 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) ---------------------------------------------- 1:2406 2:1527 3:856 4:10 5:4763 6:163 7:6 8:1554 9:1 11:172 12:1336 13:458 14:2557 15:365 16:286 17:383 18:895 20:558 21:4 22:188 23:7731 24:2723 25:2 27:2823 29:19 31:3339 32:35 33:1 34:80 35:260 36:3629 37:4567 38:9426 39:911 40:253 41:4139 42:1987 43:2677 44:373 45:18561 46:5102 47:336 49:1869 50:1949 51:591 52:1553 54:327 55:1112 56:11 57:274 58:2176 59:1277 60:1174 61:2791 62:2947 63:1799 64:5529 65:2163 66:4718 67:3105 68:1085 69:3900 70:1043 71:631 72:2849 74:2793 75:1507 76:608 77:2759 78:1916 79:1692 80:2201 81:2050 82:3185 83:1433 84:1887 85:3467 86:1086 87:2133 88:1348 89:4414 90:778 91:8412 92:2702 93:2953 94:4067 95:4421 96:1467 97:310 98:955 99:696 100:71 101:1182 102:3876 103:32236 104:5212 105:768 106:970 107:2639 108:1180 109:4172 110:2231 111:3308 112:2235 113:1841 114:1955 115:2254 116:2064 117:2582 118:2987 119:1890 120:2144 121:1332 122:2791 123:2241 124:1643 125:2877 126:91 128:1619 129:968 130:1308 131:2046 132:775 133:450 134:1642 135:350 136:1452 137:1317 138:2824 139:1584 140:1636 141:1516 142:1906 143:1994 144:1182 145:562 146:2171 147:2102 148:2710 149:2935 150:1228 151:2233 152:2072 153:591 154:7546 155:1846 156:3076 157:1953 158:1345 159:2514 160:3635 161:1892 162:3864 163:2257 164:1868 165:2331 166:1521 167:2024 168:3990 169:788 170:5135 171:1006 172:4237 173:3391 174:918 175:1324 176:3721 177:4721 178:3926 179:2309 180:2602 181:4129 182:3508 183:2152 184:2082 185:21601 186:5231 187:4661 188:4266 189:4325 190:9559 191:1504 192:11350 193:9475 194:7773 195:5579 196:3282 197:3157 198:6217 199:8595 200:8223 201:6382 202:10381 203:10667 204:4675 205:3652 206:4531 207:3636 208:4286 209:5185 210:4596 211:2590 212:4556 213:3824 214:1024 215:46 216:6722 217:3217 218:1365 219:393 220:2142 221:1192 222:742 223:2674 End of report