IPv4 R&E Routing Table Report 21:10 GMT Sat 02 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: 992738 Prefixes after maximum aggregation (per Origin AS): 384450 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488387 Number of IPv4 prefixes with a valid ROA: 552252 Number of IPv4 prefixes with an invalid ROA: 565 Number of IPv4 prefixes with no ROA: 439921 Total ASes present in the Internet Routing Table: 77075 Prefixes per ASN: 12.88 Origin-only ASes present in the Internet Routing Table: 66001 Origin ASes announcing only one prefix: 26934 Transit ASes present in the Internet Routing Table: 11074 Transit-only ASes present in the Internet Routing Table: 555 Paths with bogon ASNs present in the IPv4 Routing Table: 8 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: 1073 Number of instances of unregistered ASNs: 1105 Number of 32-bit ASNs allocated by the RIRs: 47037 Number of 32-bit ASNs visible in the Routing Table: 38684 Prefixes from 32-bit ASNs in the Routing Table: 206488 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 420 Number of addresses announced to Internet: 3107610624 Equivalent to 185 /8s, 58 /16s and 96 /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: 323735 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263090 Total APNIC prefixes after maximum aggregation: 78126 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254263 Unique aggregates announced from the APNIC address blocks: 105069 APNIC Region origin ASes present in the Internet Routing Table: 14723 APNIC Prefixes per ASN: 17.27 APNIC Region origin ASes announcing only one prefix: 4491 APNIC Region transit ASes present in the Internet Routing Table: 1977 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: 10258 Number of APNIC addresses announced to Internet: 749621504 Equivalent to 44 /8s, 174 /16s and 81 /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: 292208 Total ARIN prefixes after maximum aggregation: 132388 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293752 Unique aggregates announced from the ARIN address blocks: 141621 ARIN Region origin ASes present in the Internet Routing Table: 19256 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7042 ARIN Region transit ASes present in the Internet Routing Table: 1986 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: 5275 Number of ARIN addresses announced to Internet: 1349356544 Equivalent to 80 /8s, 109 /16s and 140 /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: 276879 Total RIPE prefixes after maximum aggregation: 136503 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275783 Unique aggregates announced from the RIPE address blocks: 178211 RIPE Region origin ASes present in the Internet Routing Table: 28977 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12048 RIPE Region transit ASes present in the Internet Routing Table: 3998 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: 12613 Number of RIPE addresses announced to Internet: 732027904 Equivalent to 43 /8s, 161 /16s and 220 /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: 124746 Total LACNIC prefixes after maximum aggregation: 29889 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121107 Unique aggregates announced from the LACNIC address blocks: 49152 LACNIC Region origin ASes present in the Internet Routing Table: 11272 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2646 LACNIC Region transit ASes present in the Internet Routing Table: 2544 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9236 Number of LACNIC addresses announced to Internet: 171211008 Equivalent to 10 /8s, 52 /16s and 121 /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: 34742 Total AfriNIC prefixes after maximum aggregation: 6834 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 47412 Unique aggregates announced from the AfriNIC address blocks: 13969 AfriNIC Region origin ASes present in the Internet Routing Table: 1937 AfriNIC Prefixes per ASN: 24.48 AfriNIC Region origin ASes announcing only one prefix: 707 AfriNIC Region transit ASes present in the Internet Routing Table: 374 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: 1302 Number of AfriNIC addresses announced to Internet: 105150976 Equivalent to 6 /8s, 68 /16s and 122 /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 12383 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6134 837 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4564 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3283 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2915 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2887 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2172 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 13704 41056 5287 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3460 8770 857 COGENT-174, US 22773 3340 3029 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3200 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 3059 1296 2224 AKAMAI-AS, US 4155 2891 219 1732 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 7580 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4025 3395 127 AKAMAI-ASN1, NL 9009 3837 364 2152 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2307 163 1677 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1579 1852 14 TE-AS TE-AS, EG 203020 1523 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 12320 3271 573 UNINET, MX 10620 3480 473 1036 Telmex Colombia S.A., CO 13999 2518 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1372 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1165 371 22 Telefonica del Peru S.A.A., PE 11664 1094 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 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 1725 660 28 RAYA-AS, EG 29571 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1411 1493 376 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1231 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 914 520 43 Vodafone-, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 541 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 13704 41056 5287 AMAZON-02, US 9808 12383 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12320 3271 573 UNINET, MX 12479 7580 1711 149 UNI2-AS, ES 7545 6134 837 622 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4564 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4025 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 12383 12267 CHINAMOBILE-CN China Mobile Communications Grou 8151 12320 11747 UNINET, MX 12479 7580 7431 UNI2-AS, ES 7545 6134 5512 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4564 4539 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 20940 4025 3898 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 23.147.224.0/24 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 /13:581 /14:1209 /15:2153 /16:13797 /17:8228 /18:13503 /19:24589 /20:43995 /21:51742 /22:112100 /23:103065 /24:617314 /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 6543 12320 UNINET, MX 12479 6538 7580 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 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2364 13704 AMAZON-02, US 30036 2292 2633 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) ---------------------------------------------- 1:2413 2:1526 3:863 4:10 5:4748 6:163 7:6 8:1546 9:1 11:172 12:1338 13:457 14:2577 15:368 16:286 17:376 18:899 20:561 21:4 22:188 23:7771 24:2725 25:2 27:2804 29:19 31:3352 32:35 33:1 34:80 35:263 36:4042 37:4559 38:9522 39:947 40:248 41:4245 42:2049 43:2693 44:379 45:18644 46:5090 47:336 49:1893 50:2047 51:591 52:1554 54:325 55:1098 56:11 57:274 58:2180 59:1293 60:1172 61:2883 62:2985 63:1786 64:5553 65:2156 66:4751 67:3107 68:1068 69:3908 70:1038 71:633 72:2852 74:2810 75:1507 76:610 77:2771 78:1918 79:1711 80:2204 81:2059 82:3197 83:1440 84:1906 85:3492 86:1093 87:2137 88:1345 89:4421 90:778 91:8417 92:2719 93:2952 94:4067 95:4425 96:1468 97:309 98:955 99:695 100:71 101:1217 102:3894 103:32278 104:5271 105:807 106:971 107:2642 108:1265 109:4182 110:2230 111:3430 112:2351 113:1845 114:1968 115:2259 116:2069 117:2640 118:2990 119:1912 120:2179 121:1334 122:2793 123:2245 124:1657 125:2876 126:91 128:1623 129:969 130:1308 131:2077 132:784 133:450 134:1602 135:351 136:1468 137:1315 138:2841 139:1596 140:1626 141:1522 142:1893 143:1961 144:1171 145:568 146:2182 147:2102 148:2719 149:2933 150:1275 151:2254 152:2070 153:590 154:7562 155:1858 156:3062 157:1943 158:1358 159:2526 160:3608 161:1894 162:3890 163:2257 164:1873 165:2429 166:1532 167:2016 168:3989 169:777 170:5170 171:999 172:4244 173:3408 174:919 175:1327 176:3734 177:4778 178:3937 179:2322 180:2587 181:4130 182:3547 183:2208 184:2082 185:21618 186:5272 187:4674 188:4272 189:4365 190:9555 191:1509 192:11341 193:9484 194:7782 195:5595 196:3293 197:3183 198:6238 199:8598 200:8206 201:6403 202:10389 203:10672 204:4612 205:3643 206:4523 207:3642 208:4289 209:5183 210:4696 211:2604 212:4559 213:3821 214:1027 215:48 216:6793 217:3257 218:1394 219:398 220:2144 221:1206 222:740 223:2731 End of report