IPv4 R&E Routing Table Report 21:10 GMT Mon 01 Dec, 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: 1017360 Prefixes after maximum aggregation (per Origin AS): 393529 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504005 Number of IPv4 prefixes with a valid ROA: 593144 Number of IPv4 prefixes with an invalid ROA: 124 Number of IPv4 prefixes with no ROA: 424092 Total ASes present in the Internet Routing Table: 77577 Prefixes per ASN: 13.11 Origin-only ASes present in the Internet Routing Table: 66403 Origin ASes announcing only one prefix: 27102 Transit ASes present in the Internet Routing Table: 11174 Transit-only ASes present in the Internet Routing Table: 569 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 950 Number of instances of unregistered ASNs: 980 Number of 32-bit ASNs allocated by the RIRs: 48107 Number of 32-bit ASNs visible in the Routing Table: 39388 Prefixes from 32-bit ASNs in the Routing Table: 216896 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 449 Number of addresses announced to Internet: 3100506112 Equivalent to 184 /8s, 205 /16s and 248 /24s Percentage of available address space announced: 83.7 Percentage of allocated address space announced: 83.7 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: 332745 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274116 Total APNIC prefixes after maximum aggregation: 80983 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 261892 Unique aggregates announced from the APNIC address blocks: 106312 APNIC Region origin ASes present in the Internet Routing Table: 14891 APNIC Prefixes per ASN: 17.59 APNIC Region origin ASes announcing only one prefix: 4519 APNIC Region transit ASes present in the Internet Routing Table: 2005 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10453 Number of APNIC addresses announced to Internet: 752918016 Equivalent to 44 /8s, 224 /16s and 158 /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: 298921 Total ARIN prefixes after maximum aggregation: 134487 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298513 Unique aggregates announced from the ARIN address blocks: 145561 ARIN Region origin ASes present in the Internet Routing Table: 19387 ARIN Prefixes per ASN: 15.40 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1991 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: 5424 Number of ARIN addresses announced to Internet: 1337423104 Equivalent to 79 /8s, 183 /16s and 117 /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: 282276 Total RIPE prefixes after maximum aggregation: 139921 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283242 Unique aggregates announced from the RIPE address blocks: 183780 RIPE Region origin ASes present in the Internet Routing Table: 29107 RIPE Prefixes per ASN: 9.73 RIPE Region origin ASes announcing only one prefix: 12075 RIPE Region transit ASes present in the Internet Routing Table: 4042 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12841 Number of RIPE addresses announced to Internet: 735886848 Equivalent to 43 /8s, 220 /16s and 190 /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: 125634 Total LACNIC prefixes after maximum aggregation: 30588 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121621 Unique aggregates announced from the LACNIC address blocks: 49686 LACNIC Region origin ASes present in the Internet Routing Table: 11313 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2556 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9310 Number of LACNIC addresses announced to Internet: 170740992 Equivalent to 10 /8s, 45 /16s and 77 /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: 35463 Total AfriNIC prefixes after maximum aggregation: 6908 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 51642 Unique aggregates announced from the AfriNIC address blocks: 18281 AfriNIC Region origin ASes present in the Internet Routing Table: 1997 AfriNIC Prefixes per ASN: 25.86 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 381 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: 1360 Number of AfriNIC addresses announced to Internet: 103305216 Equivalent to 6 /8s, 40 /16s and 80 /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 13496 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6049 832 592 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4585 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4384 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4009 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3711 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3330 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3314 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2944 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2514 275 1936 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14240 37207 5389 AMAZON-02, US 22773 4779 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 83 SHAW, CA 396982 3304 4861 482 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 2996 1287 2185 AKAMAI-AS, US 36352 2826 231 907 AS-COLOCROSSING, US 30036 2652 366 341 MEDIACOM-ENTERPRISE-BUSINESS, 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 7255 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4003 376 2277 M247, RO 20940 3988 3395 126 AKAMAI-ASN1, NL 12389 3146 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2535 180 1833 CDNEXT, GB 34984 2423 363 577 TELLCOM-AS, TR 8452 1699 1852 14 TE-AS TE-AS, EG 203020 1614 241 782 HOSTROYALE, IN 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 12673 3301 571 UNINET, MX 10620 3457 463 1100 Telmex Colombia S.A., CO 13999 2509 509 348 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1372 2432 263 Claro NXT Telecomunicacoes Ltda, BR 3816 1348 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1265 371 22 Telefonica del Peru S.A.A., PE 11664 1107 278 30 Techtel LMDS Comunicaciones Interactivas 22884 1056 70 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 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 1970 630 32 RAYA-AS, EG 36992 1683 1509 399 ETISALAT-MISR, EG 24863 1263 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1056 523 34 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 573 82 3 KENET-AS, KE 15399 545 57 58 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 14240 37207 5389 AMAZON-02, US 9808 13496 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12673 3301 571 UNINET, MX 12479 7255 1711 149 UNI2-AS, ES 7545 6049 832 592 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4779 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4585 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4384 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13496 13379 CHINAMOBILE-CN China Mobile Communications Grou 8151 12673 12102 UNINET, MX 12479 7255 7106 UNI2-AS, ES 7545 6049 5457 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4779 4411 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4384 4360 FPT-AS-AP FPT Telecom Company, VN 9498 4585 4250 BBIL-AP BHARTI Airtel Ltd., IN 7552 4009 3981 VIETEL-AS-AP Viettel Group, VN 20940 3988 3862 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 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 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 /11:94 /12:298 /13:582 /14:1202 /15:2094 /16:13682 /17:8226 /18:13499 /19:24785 /20:44588 /21:52061 /22:113070 /23:105256 /24:637851 /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 6854 12673 UNINET, MX 12479 6192 7255 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 3052 4779 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2430 14240 AMAZON-02, US 30036 2309 2652 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3457 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) ---------------------------------------------- 1:2441 2:1571 3:972 4:10 5:4943 6:190 7:6 8:1500 9:6 11:172 12:1228 13:570 14:2609 15:413 16:303 17:388 18:912 20:586 21:4 22:188 23:8134 24:2554 25:2 27:2809 29:19 31:3392 32:31 33:1 34:81 35:286 36:4580 37:4463 38:9319 39:1186 40:455 41:4450 42:1952 43:2838 44:403 45:19499 46:5102 47:377 49:2152 50:2050 51:597 52:1567 54:289 55:1108 56:11 57:303 58:2295 59:1336 60:1169 61:3057 62:3098 63:1746 64:5955 65:2126 66:5929 67:3245 68:1496 69:4180 70:1024 71:627 72:3028 74:2933 75:1516 76:599 77:2768 78:1915 79:1781 80:2292 81:2095 82:3825 83:1467 84:2017 85:3644 86:1102 87:2152 88:1339 89:4574 90:840 91:8439 92:2838 93:3015 94:4203 95:4565 96:1451 97:312 98:957 99:773 100:67 101:1195 102:4313 103:32239 104:5501 105:804 106:904 107:2806 108:1199 109:4240 110:2295 111:3892 112:2779 113:1917 114:2096 115:2285 116:2141 117:3121 118:3019 119:2051 120:2371 121:1512 122:2949 123:2304 124:1602 125:2897 126:125 128:1616 129:964 130:1514 131:2259 132:770 133:462 134:1613 135:482 136:1497 137:1337 138:2879 139:1604 140:1728 141:1550 142:2319 143:2134 144:1342 145:630 146:2189 147:2151 148:2788 149:2874 150:1300 151:2638 152:2277 153:790 154:9156 155:2248 156:4093 157:2225 158:1455 159:2672 160:3754 161:1993 162:3998 163:2332 164:1964 165:2604 166:1306 167:2132 168:3869 169:797 170:5446 171:1116 172:4502 173:3416 174:906 175:1341 176:3777 177:4705 178:4306 179:2295 180:2836 181:4299 182:3839 183:2606 184:2049 185:21703 186:5504 187:4757 188:4431 189:4485 190:9709 191:1541 192:11456 193:9506 194:7857 195:5617 196:3255 197:3197 198:6235 199:6094 200:8218 201:6386 202:10440 203:10587 204:4642 205:3713 206:4413 207:3911 208:4264 209:5455 210:4773 211:2674 212:4905 213:4008 214:1045 215:52 216:7119 217:3383 218:1583 219:403 220:2198 221:1285 222:775 223:3159 End of report