IPv4 R&E Routing Table Report 21:10 GMT Fri 03 Oct, 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: 1005221 Prefixes after maximum aggregation (per Origin AS): 389670 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495797 Number of IPv4 prefixes with a valid ROA: 575080 Number of IPv4 prefixes with an invalid ROA: 146 Number of IPv4 prefixes with no ROA: 429995 Total ASes present in the Internet Routing Table: 77338 Prefixes per ASN: 13.00 Origin-only ASes present in the Internet Routing Table: 66228 Origin ASes announcing only one prefix: 27067 Transit ASes present in the Internet Routing Table: 11110 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 970 Number of instances of unregistered ASNs: 999 Number of 32-bit ASNs allocated by the RIRs: 47628 Number of 32-bit ASNs visible in the Routing Table: 39048 Prefixes from 32-bit ASNs in the Routing Table: 211067 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 429 Number of addresses announced to Internet: 3110349824 Equivalent to 185 /8s, 100 /16s and 44 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 327758 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268498 Total APNIC prefixes after maximum aggregation: 79618 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258428 Unique aggregates announced from the APNIC address blocks: 105740 APNIC Region origin ASes present in the Internet Routing Table: 14804 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 4517 APNIC Region transit ASes present in the Internet Routing Table: 1981 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10357 Number of APNIC addresses announced to Internet: 750919936 Equivalent to 44 /8s, 194 /16s and 33 /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: 295589 Total ARIN prefixes after maximum aggregation: 133819 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 297066 Unique aggregates announced from the ARIN address blocks: 142987 ARIN Region origin ASes present in the Internet Routing Table: 19327 ARIN Prefixes per ASN: 15.37 ARIN Region origin ASes announcing only one prefix: 7087 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: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5346 Number of ARIN addresses announced to Internet: 1351442432 Equivalent to 80 /8s, 141 /16s and 96 /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: 280130 Total RIPE prefixes after maximum aggregation: 138440 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279662 Unique aggregates announced from the RIPE address blocks: 180720 RIPE Region origin ASes present in the Internet Routing Table: 29059 RIPE Prefixes per ASN: 9.62 RIPE Region origin ASes announcing only one prefix: 12086 RIPE Region transit ASes present in the Internet Routing Table: 4026 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12745 Number of RIPE addresses announced to Internet: 732951296 Equivalent to 43 /8s, 175 /16s and 243 /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: 125085 Total LACNIC prefixes after maximum aggregation: 30275 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121309 Unique aggregates announced from the LACNIC address blocks: 49528 LACNIC Region origin ASes present in the Internet Routing Table: 11292 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2538 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: 9268 Number of LACNIC addresses announced to Internet: 170803200 Equivalent to 10 /8s, 46 /16s and 64 /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: 34949 Total AfriNIC prefixes after maximum aggregation: 6859 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 48326 Unique aggregates announced from the AfriNIC address blocks: 16441 AfriNIC Region origin ASes present in the Internet Routing Table: 1968 AfriNIC Prefixes per ASN: 24.56 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1332 Number of AfriNIC addresses announced to Internet: 103998720 Equivalent to 6 /8s, 50 /16s and 229 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4517 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3958 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3725 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 861 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2353 504 1506 HUTCHISON-AS-AP HGC Global Communications 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 14279 40893 5373 AMAZON-02, US 11492 4752 320 794 CABLEONE, US 22773 3974 3065 337 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3678 1320 82 SHAW, CA 396982 3268 4823 463 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 174 3181 8766 793 COGENT-174, US 4155 3085 239 1715 USDA-1, US 16625 3047 1303 2216 AKAMAI-AS, 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 7428 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4041 3395 126 AKAMAI-ASN1, NL 9009 3954 372 2235 M247, RO 12389 3123 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2466 176 1790 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1888 203 908 HOSTROYALE, IN 8452 1626 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 12385 3279 576 UNINET, MX 10620 3504 474 1047 Telmex Colombia S.A., CO 13999 2544 511 346 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 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1233 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1069 71 353 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 994 2486 56 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 1770 616 28 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 950 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 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 14279 40893 5373 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12385 3279 576 UNINET, MX 12479 7428 1711 149 UNI2-AS, ES 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4752 320 794 CABLEONE, US 18403 4517 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4041 3395 126 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12385 11809 UNINET, MX 12479 7428 7279 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4517 4492 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3958 CABLEONE, US 7552 3958 3930 VIETEL-AS-AP Viettel Group, VN 20940 4041 3915 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 /11:93 /12:301 /13:582 /14:1204 /15:2126 /16:13785 /17:8205 /18:13458 /19:24655 /20:44334 /21:51897 /22:112562 /23:104136 /24:627811 /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 6602 12385 UNINET, MX 12479 6394 7428 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3678 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2525 3974 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2388 14279 AMAZON-02, US 30036 2290 2630 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2222 3504 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) ---------------------------------------------- 1:2425 2:1554 3:946 4:10 5:4832 6:169 7:6 8:1529 9:6 11:172 12:1242 13:566 14:2636 15:401 16:304 17:389 18:904 20:574 21:4 22:188 23:7923 24:2699 25:2 27:2800 29:19 31:3354 32:31 33:1 34:81 35:267 36:4442 37:4552 38:9494 39:1089 40:295 41:4363 42:2013 43:2726 44:392 45:18881 46:5209 47:342 49:2021 50:2049 51:594 52:1593 54:359 55:1106 56:11 57:285 58:2259 59:1305 60:1188 61:2918 62:3086 63:1768 64:5667 65:2137 66:4952 67:3114 68:1093 69:3952 70:1036 71:640 72:2969 74:2838 75:1495 76:597 77:2773 78:1920 79:1749 80:2249 81:2107 82:3447 83:1476 84:1988 85:3524 86:1101 87:2132 88:1358 89:4493 90:808 91:8380 92:2779 93:2987 94:4163 95:4487 96:1495 97:310 98:952 99:735 100:71 101:1220 102:4163 103:32272 104:5359 105:777 106:892 107:2663 108:1207 109:4225 110:2245 111:3770 112:2650 113:1848 114:1992 115:2340 116:2077 117:2940 118:3058 119:1931 120:2264 121:1357 122:2820 123:2267 124:1659 125:2883 126:93 128:1607 129:963 130:1290 131:2145 132:788 133:461 134:1610 135:365 136:1492 137:1315 138:2810 139:1610 140:1643 141:1543 142:2039 143:2059 144:1273 145:627 146:2186 147:2127 148:2739 149:2910 150:1272 151:2551 152:2173 153:640 154:7381 155:2054 156:3440 157:1999 158:1425 159:2598 160:3580 161:1990 162:3947 163:2298 164:2137 165:2566 166:1560 167:2103 168:3832 169:781 170:5348 171:1021 172:4262 173:3403 174:909 175:1349 176:3803 177:4737 178:4273 179:2302 180:2621 181:4252 182:3727 183:2536 184:2070 185:21674 186:5348 187:4734 188:4313 189:4428 190:9703 191:1549 192:11407 193:9481 194:7794 195:5571 196:3269 197:3236 198:6245 199:8748 200:8234 201:6351 202:10452 203:10589 204:4597 205:3679 206:4565 207:3702 208:4277 209:5361 210:4769 211:2679 212:4801 213:3896 214:1039 215:52 216:6903 217:3351 218:1566 219:394 220:2186 221:1236 222:752 223:3018 End of report