IPv4 R&E Routing Table Report 21:10 GMT Thu 17 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: 988001 Prefixes after maximum aggregation (per Origin AS): 383029 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486839 Number of IPv4 prefixes with a valid ROA: 555838 Number of IPv4 prefixes with an invalid ROA: 134 Number of IPv4 prefixes with no ROA: 432029 Total ASes present in the Internet Routing Table: 77007 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65929 Origin ASes announcing only one prefix: 26908 Transit ASes present in the Internet Routing Table: 11078 Transit-only ASes present in the Internet Routing Table: 567 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 (264930) 33 Prefixes from unregistered ASNs in the Routing Table: 1119 Number of instances of unregistered ASNs: 1155 Number of 32-bit ASNs allocated by the RIRs: 46856 Number of 32-bit ASNs visible in the Routing Table: 38581 Prefixes from 32-bit ASNs in the Routing Table: 205495 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: 464 Number of addresses announced to Internet: 3106512384 Equivalent to 185 /8s, 41 /16s and 158 /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: 322547 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261432 Total APNIC prefixes after maximum aggregation: 77874 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 252320 Unique aggregates announced from the APNIC address blocks: 105128 APNIC Region origin ASes present in the Internet Routing Table: 14704 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4494 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: 10244 Number of APNIC addresses announced to Internet: 749157376 Equivalent to 44 /8s, 167 /16s and 60 /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: 291104 Total ARIN prefixes after maximum aggregation: 131923 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 292968 Unique aggregates announced from the ARIN address blocks: 140954 ARIN Region origin ASes present in the Internet Routing Table: 19223 ARIN Prefixes per ASN: 15.24 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: 5253 Number of ARIN addresses announced to Internet: 1349136128 Equivalent to 80 /8s, 106 /16s and 47 /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: 276662 Total RIPE prefixes after maximum aggregation: 136009 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275634 Unique aggregates announced from the RIPE address blocks: 177323 RIPE Region origin ASes present in the Internet Routing Table: 28947 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: 3993 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: 12562 Number of RIPE addresses announced to Internet: 732028672 Equivalent to 43 /8s, 161 /16s and 223 /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: 124393 Total LACNIC prefixes after maximum aggregation: 29738 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 120708 Unique aggregates announced from the LACNIC address blocks: 49203 LACNIC Region origin ASes present in the Internet Routing Table: 11267 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2650 LACNIC Region transit ASes present in the Internet Routing Table: 2530 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9229 Number of LACNIC addresses announced to Internet: 171091712 Equivalent to 10 /8s, 50 /16s and 167 /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: 33291 Total AfriNIC prefixes after maximum aggregation: 6727 AfriNIC Deaggregation factor: 4.95 Prefixes being announced from the AfriNIC address blocks: 45906 Unique aggregates announced from the AfriNIC address blocks: 13813 AfriNIC Region origin ASes present in the Internet Routing Table: 1926 AfriNIC Prefixes per ASN: 23.83 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 381 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: 1293 Number of AfriNIC addresses announced to Internet: 104775424 Equivalent to 6 /8s, 62 /16s and 191 /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 11822 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4483 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 13695 40966 5286 AMAZON-02, US 11492 4812 319 611 CABLEONE, US 7155 3856 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3456 8769 856 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 3065 1298 2227 AKAMAI-AS, US 4155 2866 218 1729 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 7601 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4057 3395 127 AKAMAI-ASN1, NL 9009 3787 361 2108 M247, RO 12389 3119 2317 873 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2323 164 1691 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1558 1852 14 TE-AS TE-AS, EG 203020 1476 164 649 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 12284 3255 573 UNINET, MX 10620 3512 481 1022 Telmex Colombia S.A., CO 13999 2530 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, 6147 1194 371 21 Telefonica del Peru S.A.A., PE 11664 1192 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1068 71 372 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 1691 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1220 1482 322 ETISALAT-MISR, EG 36935 822 520 43 Vodafone-, EG 37069 702 1112 11 MOBINIL, EG 24863 659 389 22 LINKdotNET-AS, EG 36914 569 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 532 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 13695 40966 5286 AMAZON-02, US 8151 12284 3255 573 UNINET, MX 9808 11822 8761 115 CHINAMOBILE-CN China Mobile Communication 12479 7601 1712 148 UNI2-AS, ES 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4812 319 611 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4483 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4057 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 12284 11711 UNINET, MX 9808 11822 11707 CHINAMOBILE-CN China Mobile Communications Grou 12479 7601 7453 UNI2-AS, ES 7545 6146 5524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4483 4458 FPT-AS-AP FPT Telecom Company, VN 11492 4812 4201 CABLEONE, US 9498 4445 4134 BBIL-AP BHARTI Airtel Ltd., IN 20940 4057 3930 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 23.142.24.0/24 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 /14:1209 /15:2140 /16:13759 /17:8215 /18:13485 /19:24488 /20:43584 /21:51669 /22:111324 /23:102821 /24:614263 /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 6543 7601 UNI2-AS, ES 8151 6508 12284 UNINET, MX 11492 3606 4812 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2815 3856 VIASAT-SP-BACKBONE, US 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2346 13695 AMAZON-02, US 30036 2270 2611 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) ---------------------------------------------- 1:2398 2:1530 3:853 4:10 5:4746 6:163 7:6 8:1555 9:1 11:172 12:1334 13:458 14:2552 15:365 16:286 17:382 18:898 20:558 21:4 22:188 23:7732 24:2725 25:2 27:2829 29:19 31:3338 32:35 33:1 34:80 35:259 36:3597 37:4566 38:9432 39:910 40:253 41:4144 42:1974 43:2682 44:373 45:18520 46:5122 47:337 49:1876 50:1949 51:591 52:1554 54:324 55:1110 56:11 57:273 58:2182 59:1280 60:1174 61:2791 62:2945 63:1800 64:5519 65:2050 66:4708 67:3103 68:1086 69:3904 70:1043 71:630 72:2848 74:2791 75:1507 76:608 77:2764 78:1921 79:1708 80:2200 81:2078 82:3193 83:1434 84:1895 85:3466 86:1085 87:2126 88:1348 89:4419 90:778 91:8411 92:2758 93:2952 94:4074 95:4432 96:1464 97:309 98:956 99:696 100:71 101:1181 102:3922 103:32254 104:5213 105:743 106:970 107:2637 108:1181 109:4167 110:2231 111:3303 112:2235 113:1841 114:1958 115:2254 116:2057 117:2581 118:2987 119:1898 120:2144 121:1332 122:2786 123:2249 124:1640 125:2876 126:91 128:1621 129:965 130:1295 131:2046 132:775 133:450 134:1641 135:350 136:1462 137:1323 138:2820 139:1587 140:1631 141:1517 142:1904 143:1985 144:1186 145:562 146:2177 147:2106 148:2709 149:2938 150:1232 151:2230 152:2096 153:590 154:7547 155:1841 156:3053 157:1938 158:1345 159:2512 160:3627 161:1884 162:3862 163:2258 164:1869 165:2334 166:1520 167:2020 168:3960 169:783 170:5137 171:1007 172:4240 173:3386 174:919 175:1324 176:3723 177:4720 178:3945 179:2312 180:2603 181:4094 182:3510 183:2152 184:2084 185:21617 186:5219 187:4633 188:4274 189:4326 190:9556 191:1508 192:11349 193:9477 194:7773 195:5577 196:3276 197:3132 198:6210 199:8585 200:8220 201:6374 202:10389 203:10668 204:4675 205:3646 206:4531 207:3634 208:4287 209:5173 210:4596 211:2591 212:4558 213:3824 214:1022 215:46 216:6770 217:3215 218:1365 219:393 220:2142 221:1193 222:744 223:2673 End of report