IPv4 R&E Routing Table Report 21:10 GMT Thu 28 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: 996749 Prefixes after maximum aggregation (per Origin AS): 387315 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492046 Number of IPv4 prefixes with a valid ROA: 566238 Number of IPv4 prefixes with an invalid ROA: 152 Number of IPv4 prefixes with no ROA: 430359 Total ASes present in the Internet Routing Table: 77250 Prefixes per ASN: 12.90 Origin-only ASes present in the Internet Routing Table: 66171 Origin ASes announcing only one prefix: 27010 Transit ASes present in the Internet Routing Table: 11079 Transit-only ASes present in the Internet Routing Table: 556 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1056 Number of instances of unregistered ASNs: 1097 Number of 32-bit ASNs allocated by the RIRs: 47273 Number of 32-bit ASNs visible in the Routing Table: 38885 Prefixes from 32-bit ASNs in the Routing Table: 208821 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 451 Number of addresses announced to Internet: 3107227904 Equivalent to 185 /8s, 52 /16s and 137 /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: 324941 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265118 Total APNIC prefixes after maximum aggregation: 78922 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255602 Unique aggregates announced from the APNIC address blocks: 105098 APNIC Region origin ASes present in the Internet Routing Table: 14781 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 4504 APNIC Region transit ASes present in the Internet Routing Table: 1979 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: 10326 Number of APNIC addresses announced to Internet: 749913088 Equivalent to 44 /8s, 178 /16s and 196 /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: 292743 Total ARIN prefixes after maximum aggregation: 133269 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294893 Unique aggregates announced from the ARIN address blocks: 142408 ARIN Region origin ASes present in the Internet Routing Table: 19288 ARIN Prefixes per ASN: 15.29 ARIN Region origin ASes announcing only one prefix: 7060 ARIN Region transit ASes present in the Internet Routing Table: 1984 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5309 Number of ARIN addresses announced to Internet: 1349590528 Equivalent to 80 /8s, 113 /16s and 30 /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: 278360 Total RIPE prefixes after maximum aggregation: 137419 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277713 Unique aggregates announced from the RIPE address blocks: 179395 RIPE Region origin ASes present in the Internet Routing Table: 29036 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 3988 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: 12675 Number of RIPE addresses announced to Internet: 732219648 Equivalent to 43 /8s, 164 /16s and 201 /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: 124460 Total LACNIC prefixes after maximum aggregation: 30196 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120681 Unique aggregates announced from the LACNIC address blocks: 49395 LACNIC Region origin ASes present in the Internet Routing Table: 11285 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2548 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: 9252 Number of LACNIC addresses announced to Internet: 170753280 Equivalent to 10 /8s, 45 /16s and 125 /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: 35012 Total AfriNIC prefixes after maximum aggregation: 6812 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 47408 Unique aggregates announced from the AfriNIC address blocks: 15363 AfriNIC Region origin ASes present in the Internet Routing Table: 1962 AfriNIC Prefixes per ASN: 24.16 AfriNIC Region origin ASes announcing only one prefix: 719 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1323 Number of AfriNIC addresses announced to Internet: 104506880 Equivalent to 6 /8s, 58 /16s and 166 /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 12918 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4390 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3943 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3664 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2848 834 618 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2169 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 14016 40854 5394 AMAZON-02, US 11492 4744 315 801 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3651 1320 82 SHAW, CA 22773 3350 3034 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3219 3858 437 GOOGLE-CLOUD-PLATFORM, US 174 3172 8759 846 COGENT-174, US 16625 3046 1296 2210 AKAMAI-AS, US 4155 2958 230 1748 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 7505 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3830 363 2178 M247, RO 12389 3117 2315 865 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2352 168 1716 CDNEXT, GB 203020 1835 221 843 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 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 12295 3272 572 UNINET, MX 10620 3493 473 1047 Telmex Colombia S.A., CO 13999 2532 511 348 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1207 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1181 371 22 Telefonica del Peru S.A.A., PE 22884 1059 70 381 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1792 660 28 RAYA-AS, EG 29571 1498 94 37 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1243 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 990 523 45 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 576 82 3 KENET-AS, KE 15399 546 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 14016 40854 5394 AMAZON-02, US 9808 12918 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12295 3272 572 UNINET, MX 12479 7505 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4744 315 801 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4390 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4030 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 12918 12804 CHINAMOBILE-CN China Mobile Communications Grou 8151 12295 11723 UNINET, MX 12479 7505 7355 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4390 4365 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4744 3943 CABLEONE, US 7552 3943 3916 VIETEL-AS-AP Viettel Group, VN 20940 4030 3903 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 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 /15:2149 /16:13768 /17:8202 /18:13471 /19:24595 /20:44293 /21:51890 /22:112350 /23:103388 /24:620392 /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 6500 12295 UNINET, MX 12479 6456 7505 UNI2-AS, ES 11492 3560 4744 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3448 3651 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2501 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2396 14016 AMAZON-02, US 30036 2319 2662 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 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) ---------------------------------------------- 1:2417 2:1539 3:921 4:10 5:4820 6:156 7:6 8:1542 9:4 11:172 12:1255 13:488 14:2602 15:391 16:285 17:386 18:902 20:565 21:4 22:188 23:7879 24:2710 25:2 27:2819 29:19 31:3358 32:29 33:1 34:81 35:260 36:4292 37:4529 38:9305 39:993 40:264 41:4315 42:1947 43:2693 44:385 45:18737 46:5123 47:342 49:1985 50:2064 51:591 52:1562 54:334 55:1111 56:11 57:286 58:2245 59:1279 60:1182 61:2869 62:3037 63:1781 64:5603 65:2139 66:4821 67:3102 68:1065 69:3907 70:1030 71:637 72:2858 74:2813 75:1509 76:601 77:2777 78:1918 79:1746 80:2230 81:2093 82:3265 83:1447 84:1924 85:3484 86:1127 87:2132 88:1355 89:4471 90:792 91:8425 92:2768 93:2990 94:4150 95:4450 96:1470 97:310 98:952 99:724 100:71 101:1214 102:3981 103:32320 104:5312 105:769 106:876 107:2656 108:1237 109:4189 110:2232 111:3581 112:2475 113:1826 114:1977 115:2223 116:2075 117:2703 118:3023 119:1921 120:2200 121:1336 122:2807 123:2235 124:1661 125:2879 126:91 128:1592 129:966 130:1298 131:2112 132:786 133:459 134:1624 135:366 136:1475 137:1313 138:2825 139:1598 140:1617 141:1540 142:1905 143:2003 144:1205 145:603 146:2185 147:2108 148:2721 149:2904 150:1250 151:2411 152:2109 153:629 154:7137 155:1972 156:3071 157:1958 158:1476 159:2545 160:3610 161:1939 162:3904 163:2302 164:1909 165:2516 166:1555 167:2074 168:3856 169:784 170:5261 171:996 172:4250 173:3402 174:904 175:1321 176:3788 177:4786 178:4024 179:2315 180:2594 181:4189 182:3626 183:2244 184:2073 185:21640 186:5307 187:4613 188:4310 189:4343 190:9422 191:1538 192:11386 193:9483 194:7787 195:5659 196:3301 197:3219 198:6241 199:8644 200:8221 201:6369 202:10437 203:10661 204:4592 205:3684 206:4521 207:3651 208:4295 209:5213 210:4725 211:2651 212:4636 213:3837 214:1039 215:51 216:6830 217:3303 218:1453 219:392 220:2154 221:1210 222:748 223:2813 End of report