IPv4 R&E Routing Table Report 21:10 GMT Thu 11 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: 1000759 Prefixes after maximum aggregation (per Origin AS): 388401 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493769 Number of IPv4 prefixes with a valid ROA: 570487 Number of IPv4 prefixes with an invalid ROA: 160 Number of IPv4 prefixes with no ROA: 430108 Total ASes present in the Internet Routing Table: 77278 Prefixes per ASN: 12.95 Origin-only ASes present in the Internet Routing Table: 66174 Origin ASes announcing only one prefix: 27034 Transit ASes present in the Internet Routing Table: 11104 Transit-only ASes present in the Internet Routing Table: 555 Paths with bogon ASNs present in the IPv4 Routing Table: 5 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: 1069 Number of instances of unregistered ASNs: 1098 Number of 32-bit ASNs allocated by the RIRs: 47369 Number of 32-bit ASNs visible in the Routing Table: 38929 Prefixes from 32-bit ASNs in the Routing Table: 209880 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: 451 Number of addresses announced to Internet: 3107424768 Equivalent to 185 /8s, 55 /16s and 138 /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: 326091 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266708 Total APNIC prefixes after maximum aggregation: 79203 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 256818 Unique aggregates announced from the APNIC address blocks: 105560 APNIC Region origin ASes present in the Internet Routing Table: 14793 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 4516 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: 10340 Number of APNIC addresses announced to Internet: 750242560 Equivalent to 44 /8s, 183 /16s and 203 /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: 293971 Total ARIN prefixes after maximum aggregation: 133612 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295342 Unique aggregates announced from the ARIN address blocks: 142653 ARIN Region origin ASes present in the Internet Routing Table: 19290 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7060 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: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5326 Number of ARIN addresses announced to Internet: 1349374976 Equivalent to 80 /8s, 109 /16s and 212 /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: 278925 Total RIPE prefixes after maximum aggregation: 137852 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 278207 Unique aggregates announced from the RIPE address blocks: 179843 RIPE Region origin ASes present in the Internet Routing Table: 29045 RIPE Prefixes per ASN: 9.58 RIPE Region origin ASes announcing only one prefix: 12096 RIPE Region transit ASes present in the Internet Routing Table: 4018 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: 12690 Number of RIPE addresses announced to Internet: 732176896 Equivalent to 43 /8s, 164 /16s and 34 /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: 125019 Total LACNIC prefixes after maximum aggregation: 30207 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121240 Unique aggregates announced from the LACNIC address blocks: 49478 LACNIC Region origin ASes present in the Internet Routing Table: 11283 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2647 LACNIC Region transit ASes present in the Internet Routing Table: 2535 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: 9250 Number of LACNIC addresses announced to Internet: 170704384 Equivalent to 10 /8s, 44 /16s and 190 /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: 35067 Total AfriNIC prefixes after maximum aggregation: 6820 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 48700 Unique aggregates announced from the AfriNIC address blocks: 15839 AfriNIC Region origin ASes present in the Internet Routing Table: 1964 AfriNIC Prefixes per ASN: 24.80 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 384 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: 1323 Number of AfriNIC addresses announced to Internet: 104664576 Equivalent to 6 /8s, 61 /16s and 14 /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 13267 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6138 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4448 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3937 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3659 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3293 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3011 811 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2916 862 507 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2168 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 14376 40863 5379 AMAZON-02, US 11492 4733 314 822 CABLEONE, US 22773 3959 3062 317 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3659 1320 81 SHAW, CA 174 3284 8766 829 COGENT-174, US 396982 3228 3859 444 GOOGLE-CLOUD-PLATFORM, US 749 3219 54766 2470 DNIC-AS-00749, US 16625 3038 1293 2205 AKAMAI-AS, US 4155 2997 233 1739 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 7490 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3866 364 2188 M247, RO 12389 3119 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 1615 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 12371 3280 573 UNINET, MX 10620 3493 473 1047 Telmex Colombia S.A., CO 13999 2533 510 352 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1375 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1216 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1177 371 22 Telefonica del Peru S.A.A., PE 22884 1064 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1013 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 1823 652 28 RAYA-AS, EG 36992 1504 1498 379 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 29571 1247 102 38 ORANGE-COTE-IVOIRE, CI 24863 1245 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1066 523 46 Vodafone-, EG 36914 578 82 3 KENET-AS, KE 20011 576 154 212 NTT-DATA-Inc, ZA 15399 547 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 14376 40863 5379 AMAZON-02, US 9808 13267 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12371 3280 573 UNINET, MX 12479 7490 1711 149 UNI2-AS, ES 7545 6138 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4733 314 822 CABLEONE, US 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4448 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 13267 13153 CHINAMOBILE-CN China Mobile Communications Grou 8151 12371 11798 UNINET, MX 12479 7490 7341 UNI2-AS, ES 7545 6138 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4448 4423 FPT-AS-AP FPT Telecom Company, VN 9498 4466 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4733 3911 CABLEONE, US 7552 3937 3910 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 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 /16:13765 /17:8213 /18:13468 /19:24593 /20:44301 /21:52018 /22:112517 /23:103554 /24:623931 /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 6571 12371 UNINET, MX 12479 6448 7490 UNI2-AS, ES 11492 3549 4733 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3457 3659 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3959 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2439 14376 AMAZON-02, US 30036 2308 2650 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 2:1548 3:935 4:10 5:4822 6:157 7:6 8:1541 9:4 11:172 12:1248 13:558 14:2617 15:399 16:302 17:389 18:905 20:569 21:4 22:188 23:7885 24:2702 25:2 27:2821 29:19 31:3366 32:30 33:1 34:81 35:266 36:4319 37:4541 38:9378 39:1030 40:281 41:4341 42:1963 43:2699 44:377 45:18950 46:5128 47:343 49:2010 50:2058 51:590 52:1606 54:371 55:1112 56:11 57:285 58:2246 59:1288 60:1182 61:2879 62:3054 63:1770 64:5625 65:2140 66:4853 67:3108 68:1075 69:3919 70:1031 71:635 72:2876 74:2823 75:1506 76:600 77:2778 78:1918 79:1761 80:2234 81:2093 82:3316 83:1458 84:1973 85:3503 86:1101 87:2130 88:1356 89:4495 90:804 91:8408 92:2785 93:2980 94:4158 95:4449 96:1469 97:312 98:946 99:751 100:70 101:1218 102:4087 103:32285 104:5295 105:784 106:877 107:2655 108:1222 109:4201 110:2235 111:3670 112:2532 113:1827 114:1995 115:2239 116:2070 117:2806 118:3062 119:1928 120:2206 121:1353 122:2792 123:2254 124:1670 125:2875 126:91 128:1595 129:965 130:1300 131:2153 132:790 133:461 134:1613 135:365 136:1487 137:1327 138:2835 139:1604 140:1627 141:1539 142:1912 143:2045 144:1248 145:609 146:2184 147:2112 148:2719 149:2902 150:1269 151:2403 152:2120 153:629 154:7442 155:2040 156:3501 157:1983 158:1425 159:2559 160:3613 161:1947 162:3918 163:2305 164:1922 165:2586 166:1557 167:2083 168:3804 169:780 170:5334 171:1005 172:4247 173:3404 174:902 175:1342 176:3795 177:4836 178:4109 179:2318 180:2601 181:4201 182:3691 183:2420 184:2069 185:21664 186:5424 187:4631 188:4267 189:4384 190:9666 191:1573 192:11403 193:9466 194:7797 195:5557 196:3307 197:3244 198:6235 199:8666 200:8236 201:6332 202:10428 203:10657 204:4566 205:3686 206:4543 207:3650 208:4263 209:5225 210:4741 211:2665 212:4684 213:3857 214:1044 215:52 216:6861 217:3317 218:1461 219:394 220:2152 221:1219 222:752 223:2864 End of report