IPv4 R&E Routing Table Report 21:10 GMT Mon 25 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: 996279 Prefixes after maximum aggregation (per Origin AS): 386754 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 491759 Number of IPv4 prefixes with a valid ROA: 565430 Number of IPv4 prefixes with an invalid ROA: 154 Number of IPv4 prefixes with no ROA: 430695 Total ASes present in the Internet Routing Table: 77244 Prefixes per ASN: 12.90 Origin-only ASes present in the Internet Routing Table: 66126 Origin ASes announcing only one prefix: 27029 Transit ASes present in the Internet Routing Table: 11118 Transit-only ASes present in the Internet Routing Table: 554 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: 1039 Number of instances of unregistered ASNs: 1080 Number of 32-bit ASNs allocated by the RIRs: 47270 Number of 32-bit ASNs visible in the Routing Table: 38864 Prefixes from 32-bit ASNs in the Routing Table: 208299 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: 424 Number of addresses announced to Internet: 3106706944 Equivalent to 185 /8s, 44 /16s and 150 /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: 324542 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265148 Total APNIC prefixes after maximum aggregation: 78815 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255706 Unique aggregates announced from the APNIC address blocks: 105145 APNIC Region origin ASes present in the Internet Routing Table: 14780 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4516 APNIC Region transit ASes present in the Internet Routing Table: 1993 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10316 Number of APNIC addresses announced to Internet: 749833472 Equivalent to 44 /8s, 177 /16s and 141 /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: 292657 Total ARIN prefixes after maximum aggregation: 133134 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294452 Unique aggregates announced from the ARIN address blocks: 142105 ARIN Region origin ASes present in the Internet Routing Table: 19293 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7064 ARIN Region transit ASes present in the Internet Routing Table: 1989 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: 5307 Number of ARIN addresses announced to Internet: 1349064960 Equivalent to 80 /8s, 105 /16s and 25 /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: 278054 Total RIPE prefixes after maximum aggregation: 137141 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277359 Unique aggregates announced from the RIPE address blocks: 179182 RIPE Region origin ASes present in the Internet Routing Table: 29038 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12088 RIPE Region transit ASes present in the Internet Routing Table: 3991 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: 12673 Number of RIPE addresses announced to Internet: 732303360 Equivalent to 43 /8s, 166 /16s and 16 /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: 124506 Total LACNIC prefixes after maximum aggregation: 30179 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120733 Unique aggregates announced from the LACNIC address blocks: 49428 LACNIC Region origin ASes present in the Internet Routing Table: 11283 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2643 LACNIC Region transit ASes present in the Internet Routing Table: 2565 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: 9249 Number of LACNIC addresses announced to Internet: 170752256 Equivalent to 10 /8s, 45 /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: 34875 Total AfriNIC prefixes after maximum aggregation: 6795 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 47604 Unique aggregates announced from the AfriNIC address blocks: 15530 AfriNIC Region origin ASes present in the Internet Routing Table: 1956 AfriNIC Prefixes per ASN: 24.34 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 378 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: 1319 Number of AfriNIC addresses announced to Internet: 104513792 Equivalent to 6 /8s, 58 /16s and 193 /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 12928 8761 115 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 4406 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3941 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3665 1044 71 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2970 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2175 427 184 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 13971 40850 5389 AMAZON-02, US 11492 4742 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3649 1320 82 SHAW, CA 174 3539 8759 846 COGENT-174, US 22773 3332 3026 158 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3219 3858 437 GOOGLE-CLOUD-PLATFORM, US 16625 3040 1292 2209 AKAMAI-AS, US 4155 2954 230 1744 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 7531 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4026 3395 127 AKAMAI-ASN1, NL 9009 3868 366 2186 M247, RO 12389 3113 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2339 166 1707 CDNEXT, GB 203020 1813 220 836 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1601 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 12285 3272 572 UNINET, MX 10620 3483 472 1054 Telmex Colombia S.A., CO 13999 2529 511 351 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 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1215 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1180 371 22 Telefonica del Peru S.A.A., PE 22884 1059 70 381 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1019 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 1770 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1041 1096 13 MOBINIL, EG 36935 972 520 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 563 82 3 KENET-AS, KE 15399 543 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 13971 40850 5389 AMAZON-02, US 9808 12928 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12285 3272 572 UNINET, MX 12479 7531 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4406 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4026 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 12928 12813 CHINAMOBILE-CN China Mobile Communications Grou 8151 12285 11713 UNINET, MX 12479 7531 7381 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4406 4381 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4742 3963 CABLEONE, US 7552 3941 3914 VIETEL-AS-AP Viettel Group, VN 20940 4026 3899 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 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 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 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 /14:1208 /15:2149 /16:13775 /17:8206 /18:13479 /19:24606 /20:44023 /21:51907 /22:112315 /23:103293 /24:620276 /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 6492 12285 UNINET, MX 12479 6492 7531 UNI2-AS, ES 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3446 3649 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2492 3332 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2371 13971 AMAZON-02, US 30036 2315 2658 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2203 3483 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) ---------------------------------------------- 1:2415 2:1537 3:917 4:10 5:4805 6:156 7:6 8:1542 9:4 11:172 12:1256 13:487 14:2605 15:386 16:285 17:379 18:901 20:564 21:4 22:188 23:7868 24:2703 25:2 27:2817 29:19 31:3375 32:29 33:1 34:81 35:259 36:4292 37:4560 38:9232 39:991 40:262 41:4270 42:1956 43:2686 44:385 45:18819 46:5123 47:337 49:1980 50:2061 51:591 52:1556 54:335 55:1111 56:11 57:286 58:2243 59:1280 60:1176 61:2870 62:3028 63:1785 64:5610 65:2140 66:4816 67:3107 68:1065 69:3905 70:1031 71:635 72:2855 74:2816 75:1509 76:601 77:2777 78:1914 79:1737 80:2228 81:2089 82:3271 83:1435 84:1921 85:3484 86:1123 87:2143 88:1354 89:4464 90:776 91:8416 92:2756 93:2971 94:4129 95:4451 96:1467 97:310 98:953 99:712 100:71 101:1218 102:3937 103:32321 104:5278 105:764 106:876 107:2651 108:1235 109:4188 110:2238 111:3582 112:2475 113:1867 114:1977 115:2234 116:2060 117:2701 118:3020 119:1913 120:2208 121:1334 122:2809 123:2235 124:1655 125:2884 126:91 128:1594 129:966 130:1302 131:2076 132:781 133:460 134:1626 135:358 136:1481 137:1310 138:2833 139:1599 140:1618 141:1541 142:1913 143:2015 144:1204 145:587 146:2165 147:2105 148:2714 149:2938 150:1251 151:2384 152:2113 153:624 154:7301 155:1940 156:3167 157:1957 158:1382 159:2541 160:3610 161:1959 162:3901 163:2294 164:1885 165:2497 166:1554 167:2070 168:3878 169:766 170:5247 171:997 172:4259 173:3415 174:904 175:1325 176:3788 177:4787 178:3993 179:2317 180:2593 181:4177 182:3620 183:2243 184:2076 185:21629 186:5313 187:4627 188:4304 189:4346 190:9414 191:1529 192:11367 193:9479 194:7805 195:5646 196:3300 197:3193 198:6241 199:8642 200:8219 201:6378 202:10418 203:10677 204:4848 205:3681 206:4512 207:3645 208:4289 209:5193 210:4724 211:2652 212:4622 213:3836 214:1040 215:51 216:6813 217:3305 218:1439 219:397 220:2140 221:1210 222:748 223:2811 End of report