IPv4 R&E Routing Table Report 21:10 GMT Sun 13 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: 987589 Prefixes after maximum aggregation (per Origin AS): 382873 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485947 Number of IPv4 prefixes with a valid ROA: 555080 Number of IPv4 prefixes with an invalid ROA: 142 Number of IPv4 prefixes with no ROA: 432367 Total ASes present in the Internet Routing Table: 76977 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65926 Origin ASes announcing only one prefix: 26895 Transit ASes present in the Internet Routing Table: 11051 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 31 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: 1121 Number of instances of unregistered ASNs: 1157 Number of 32-bit ASNs allocated by the RIRs: 46830 Number of 32-bit ASNs visible in the Routing Table: 38537 Prefixes from 32-bit ASNs in the Routing Table: 205214 Number of bogon 32-bit ASNs visible in the Routing Table: 103 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 472 Number of addresses announced to Internet: 3106412032 Equivalent to 185 /8s, 40 /16s and 22 /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: 322708 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261145 Total APNIC prefixes after maximum aggregation: 77815 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251931 Unique aggregates announced from the APNIC address blocks: 104833 APNIC Region origin ASes present in the Internet Routing Table: 14695 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4477 APNIC Region transit ASes present in the Internet Routing Table: 1974 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10226 Number of APNIC addresses announced to Internet: 749166592 Equivalent to 44 /8s, 167 /16s and 96 /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: 291351 Total ARIN prefixes after maximum aggregation: 131998 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293341 Unique aggregates announced from the ARIN address blocks: 140762 ARIN Region origin ASes present in the Internet Routing Table: 19225 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7029 ARIN Region transit ASes present in the Internet Routing Table: 1995 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: 5251 Number of ARIN addresses announced to Internet: 1349391872 Equivalent to 80 /8s, 110 /16s and 22 /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: 276563 Total RIPE prefixes after maximum aggregation: 135821 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 275391 Unique aggregates announced from the RIPE address blocks: 176989 RIPE Region origin ASes present in the Internet Routing Table: 28932 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12034 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12545 Number of RIPE addresses announced to Internet: 731450112 Equivalent to 43 /8s, 153 /16s and 11 /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: 124209 Total LACNIC prefixes after maximum aggregation: 29742 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 120547 Unique aggregates announced from the LACNIC address blocks: 49076 LACNIC Region origin ASes present in the Internet Routing Table: 11275 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2525 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: 9231 Number of LACNIC addresses announced to Internet: 171191552 Equivalent to 10 /8s, 52 /16s and 45 /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: 33200 Total AfriNIC prefixes after maximum aggregation: 6744 AfriNIC Deaggregation factor: 4.92 Prefixes being announced from the AfriNIC address blocks: 45906 Unique aggregates announced from the AfriNIC address blocks: 13872 AfriNIC Region origin ASes present in the Internet Routing Table: 1921 AfriNIC Prefixes per ASN: 23.90 AfriNIC Region origin ASes announcing only one prefix: 693 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: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1284 Number of AfriNIC addresses announced to Internet: 104952832 Equivalent to 6 /8s, 65 /16s and 116 /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 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6148 840 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4512 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 535 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3280 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2649 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2184 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 13666 40960 5262 AMAZON-02, US 11492 4788 317 606 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 22773 3607 3039 210 ASN-CXA-ALL-CCI-22773-RDC, US 174 3466 8769 847 COGENT-174, US 749 3225 54767 2476 DNIC-AS-00749, US 396982 3195 3854 432 GOOGLE-CLOUD-PLATFORM, US 16625 3107 1308 2248 AKAMAI-AS, US 4155 2852 216 1723 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 7638 1713 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4080 3395 127 AKAMAI-ASN1, NL 9009 3776 359 2107 M247, RO 12389 3119 2317 875 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 582 TELLCOM-AS, TR 212238 2342 167 1710 CDNEXT, GB 8452 1607 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 203020 1475 164 648 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 12296 3255 573 UNINET, MX 10620 3512 481 1022 Telmex Colombia S.A., CO 13999 2530 538 352 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, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 11664 1188 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1053 70 379 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 1647 633 33 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1191 1474 353 ETISALAT-MISR, EG 36935 748 520 39 Vodafone-, EG 24863 659 389 22 LINKdotNET-AS, EG 37069 600 1112 11 MOBINIL, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 565 82 3 KENET-AS, KE 15399 531 56 54 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 13666 40960 5262 AMAZON-02, US 8151 12296 3255 573 UNINET, MX 9808 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7638 1713 150 UNI2-AS, ES 7545 6148 840 623 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4788 317 606 CABLEONE, US 18403 4512 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 535 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4080 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 12296 11723 UNINET, MX 9808 11755 11639 CHINAMOBILE-CN China Mobile Communications Grou 12479 7638 7488 UNI2-AS, ES 7545 6148 5525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4512 4487 FPT-AS-AP FPT Telecom Company, VN 11492 4788 4182 CABLEONE, US 9498 4361 4049 BBIL-AP BHARTI Airtel Ltd., IN 20940 4080 3953 AKAMAI-ASN1, NL 7552 3924 3897 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: 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /16:13767 /17:8230 /18:13500 /19:24491 /20:43542 /21:51688 /22:111327 /23:102860 /24:613781 /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 6571 7638 UNI2-AS, ES 8151 6519 12296 UNINET, MX 11492 3582 4788 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2736 3607 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 13666 AMAZON-02, US 30036 2272 2614 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2199 3512 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) ---------------------------------------------- 1:2397 2:1529 3:851 4:10 5:4737 6:162 7:6 8:1555 9:1 11:172 12:1340 13:457 14:2554 15:366 16:285 17:377 18:898 20:556 21:4 22:188 23:7761 24:2729 25:2 27:2814 29:19 31:3321 32:35 33:1 34:80 35:259 36:3526 37:4588 38:9417 39:908 40:250 41:4123 42:1996 43:2677 44:374 45:18504 46:5112 47:335 49:1886 50:1949 51:592 52:1554 54:324 55:1107 56:11 57:273 58:2188 59:1187 60:1174 61:2788 62:2942 63:1796 64:5535 65:2056 66:4728 67:3105 68:1127 69:3891 70:1107 71:631 72:2872 74:2796 75:1508 76:608 77:2761 78:1919 79:1713 80:2193 81:2074 82:3167 83:1441 84:1881 85:3464 86:1082 87:2139 88:1347 89:4417 90:774 91:8419 92:2751 93:2945 94:4107 95:4428 96:1467 97:310 98:1005 99:697 100:72 101:1181 102:3905 103:32274 104:5280 105:785 106:975 107:2661 108:1257 109:4164 110:2232 111:3272 112:2219 113:1841 114:1953 115:2253 116:2058 117:2595 118:2986 119:1916 120:2115 121:1331 122:2789 123:2227 124:1632 125:2877 126:91 128:1615 129:965 130:1303 131:2061 132:771 133:450 134:1578 135:349 136:1433 137:1322 138:2837 139:1592 140:1632 141:1536 142:1912 143:1949 144:1180 145:561 146:2179 147:2103 148:2699 149:2937 150:1228 151:2223 152:2078 153:591 154:7573 155:1822 156:3047 157:1936 158:1342 159:2497 160:3622 161:1856 162:3887 163:2248 164:1867 165:2080 166:1513 167:2021 168:3984 169:785 170:5119 171:1007 172:4436 173:3388 174:927 175:1328 176:3705 177:4720 178:3948 179:2309 180:2609 181:4096 182:3497 183:2144 184:2103 185:21569 186:5197 187:4619 188:4266 189:4315 190:9523 191:1480 192:11340 193:9479 194:7779 195:5570 196:3283 197:3146 198:6218 199:8558 200:8226 201:6386 202:10362 203:10643 204:4616 205:3667 206:4526 207:3625 208:4289 209:5161 210:4616 211:2572 212:4557 213:3800 214:1031 215:46 216:6780 217:3177 218:1362 219:393 220:2142 221:1186 222:713 223:2610 End of report