IPv4 R&E Routing Table Report 21:10 GMT Mon 15 Sep, 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: 1000873 Prefixes after maximum aggregation (per Origin AS): 388531 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 494229 Number of IPv4 prefixes with a valid ROA: 570898 Number of IPv4 prefixes with an invalid ROA: 164 Number of IPv4 prefixes with no ROA: 429811 Total ASes present in the Internet Routing Table: 77306 Prefixes per ASN: 12.95 Origin-only ASes present in the Internet Routing Table: 66218 Origin ASes announcing only one prefix: 27052 Transit ASes present in the Internet Routing Table: 11088 Transit-only ASes present in the Internet Routing Table: 551 Paths with bogon ASNs present in the IPv4 Routing Table: 5 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: 1057 Number of instances of unregistered ASNs: 1086 Number of 32-bit ASNs allocated by the RIRs: 47419 Number of 32-bit ASNs visible in the Routing Table: 38964 Prefixes from 32-bit ASNs in the Routing Table: 209992 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 447 Number of addresses announced to Internet: 3107426816 Equivalent to 185 /8s, 55 /16s and 146 /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: 326212 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266807 Total APNIC prefixes after maximum aggregation: 79231 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 256954 Unique aggregates announced from the APNIC address blocks: 105560 APNIC Region origin ASes present in the Internet Routing Table: 14805 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 4520 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: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10352 Number of APNIC addresses announced to Internet: 750126080 Equivalent to 44 /8s, 182 /16s and 4 /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: 293955 Total ARIN prefixes after maximum aggregation: 133691 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295534 Unique aggregates announced from the ARIN address blocks: 142634 ARIN Region origin ASes present in the Internet Routing Table: 19304 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7071 ARIN Region transit ASes present in the Internet Routing Table: 1983 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5334 Number of ARIN addresses announced to Internet: 1349555456 Equivalent to 80 /8s, 112 /16s and 149 /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: 279019 Total RIPE prefixes after maximum aggregation: 137851 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 278273 Unique aggregates announced from the RIPE address blocks: 179840 RIPE Region origin ASes present in the Internet Routing Table: 29052 RIPE Prefixes per ASN: 9.58 RIPE Region origin ASes announcing only one prefix: 12098 RIPE Region transit ASes present in the Internet Routing Table: 4010 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12705 Number of RIPE addresses announced to Internet: 732239104 Equivalent to 43 /8s, 165 /16s and 21 /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: 124977 Total LACNIC prefixes after maximum aggregation: 30216 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121173 Unique aggregates announced from the LACNIC address blocks: 49495 LACNIC Region origin ASes present in the Internet Routing Table: 11280 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2529 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9245 Number of LACNIC addresses announced to Internet: 170755840 Equivalent to 10 /8s, 45 /16s and 135 /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: 35058 Total AfriNIC prefixes after maximum aggregation: 6843 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 48491 Unique aggregates announced from the AfriNIC address blocks: 16304 AfriNIC Region origin ASes present in the Internet Routing Table: 1968 AfriNIC Prefixes per ASN: 24.64 AfriNIC Region origin ASes announcing only one prefix: 719 AfriNIC Region transit ASes present in the Internet Routing Table: 388 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: 1328 Number of AfriNIC addresses announced to Internet: 104488960 Equivalent to 6 /8s, 58 /16s and 96 /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 13277 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6137 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4455 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3936 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3684 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3010 811 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2918 863 508 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2171 427 182 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 14414 40867 5403 AMAZON-02, US 11492 4734 314 823 CABLEONE, US 22773 3945 3061 316 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3667 1320 81 SHAW, CA 174 3271 8765 822 COGENT-174, US 396982 3230 3858 446 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 16625 3044 1298 2206 AKAMAI-AS, US 4155 3000 233 1740 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 7477 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4034 3395 127 AKAMAI-ASN1, NL 9009 3855 362 2183 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2416 172 1749 CDNEXT, GB 34984 2415 363 574 TELLCOM-AS, TR 203020 1893 226 875 HOSTROYALE, IN 8452 1619 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12373 3280 573 UNINET, MX 10620 3493 473 1047 Telmex Colombia S.A., CO 13999 2543 511 348 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1225 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1182 371 22 Telefonica del Peru S.A.A., PE 22884 1064 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1009 2487 55 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 652 28 RAYA-AS, EG 36992 1507 1498 384 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1246 389 20 LINKdotNET-AS, EG 29571 1241 102 51 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1066 523 46 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 15399 548 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 14414 40867 5403 AMAZON-02, US 9808 13277 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12373 3280 573 UNINET, MX 12479 7477 1711 149 UNI2-AS, ES 7545 6137 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4734 314 823 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4455 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4034 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 13277 13163 CHINAMOBILE-CN China Mobile Communications Grou 8151 12373 11800 UNINET, MX 12479 7477 7328 UNI2-AS, ES 7545 6137 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4455 4430 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4734 3911 CABLEONE, US 7552 3936 3909 VIETEL-AS-AP Viettel Group, VN 20940 4034 3907 AKAMAI-ASN1, NL 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 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /13:580 /14:1209 /15:2148 /16:13763 /17:8207 /18:13461 /19:24594 /20:44285 /21:52031 /22:112569 /23:103610 /24:623954 /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 6572 12373 UNINET, MX 12479 6438 7477 UNI2-AS, ES 11492 3550 4734 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3465 3667 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2507 3945 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2451 14414 AMAZON-02, US 30036 2309 2651 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3493 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) ---------------------------------------------- 1:2419 2:1550 3:930 4:10 5:4832 6:157 7:6 8:1543 9:4 11:172 12:1250 13:568 14:2618 15:398 16:303 17:387 18:904 20:571 21:4 22:188 23:7893 24:2701 25:2 27:2813 29:19 31:3354 32:30 33:1 34:81 35:266 36:4343 37:4543 38:9382 39:1030 40:281 41:4353 42:1966 43:2698 44:378 45:18901 46:5123 47:343 49:2009 50:2050 51:591 52:1610 54:371 55:1088 56:11 57:286 58:2255 59:1288 60:1182 61:2879 62:3055 63:1775 64:5636 65:2128 66:4875 67:3101 68:1085 69:3932 70:1031 71:638 72:2881 74:2839 75:1506 76:600 77:2780 78:1919 79:1756 80:2243 81:2092 82:3319 83:1458 84:1975 85:3499 86:1096 87:2128 88:1355 89:4482 90:803 91:8417 92:2780 93:2986 94:4155 95:4465 96:1467 97:312 98:946 99:758 100:71 101:1218 102:4112 103:32287 104:5287 105:784 106:877 107:2654 108:1222 109:4204 110:2239 111:3677 112:2532 113:1826 114:1991 115:2290 116:2071 117:2805 118:3060 119:1927 120:2206 121:1354 122:2790 123:2251 124:1672 125:2876 126:91 128:1597 129:963 130:1294 131:2146 132:788 133:458 134:1607 135:365 136:1487 137:1318 138:2820 139:1603 140:1626 141:1536 142:1914 143:2035 144:1249 145:608 146:2180 147:2116 148:2731 149:2901 150:1263 151:2412 152:2121 153:629 154:7405 155:2045 156:3443 157:1992 158:1431 159:2566 160:3618 161:1952 162:3915 163:2303 164:1917 165:2568 166:1558 167:2082 168:3816 169:781 170:5360 171:1006 172:4251 173:3403 174:898 175:1342 176:3798 177:4759 178:4104 179:2298 180:2605 181:4215 182:3707 183:2427 184:2066 185:21644 186:5397 187:4668 188:4272 189:4383 190:9679 191:1544 192:11417 193:9472 194:7801 195:5567 196:3302 197:3230 198:6239 199:8663 200:8244 201:6337 202:10405 203:10661 204:4565 205:3673 206:4549 207:3655 208:4268 209:5258 210:4740 211:2668 212:4678 213:3863 214:1041 215:52 216:6870 217:3324 218:1462 219:394 220:2150 221:1220 222:751 223:2868 End of report