IPv4 R&E Routing Table Report 21:10 GMT Sun 14 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: 1000932 Prefixes after maximum aggregation (per Origin AS): 388519 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493793 Number of IPv4 prefixes with a valid ROA: 570607 Number of IPv4 prefixes with an invalid ROA: 161 Number of IPv4 prefixes with no ROA: 430164 Total ASes present in the Internet Routing Table: 77299 Prefixes per ASN: 12.95 Origin-only ASes present in the Internet Routing Table: 66203 Origin ASes announcing only one prefix: 27034 Transit ASes present in the Internet Routing Table: 11096 Transit-only ASes present in the Internet Routing Table: 552 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: 1059 Number of instances of unregistered ASNs: 1088 Number of 32-bit ASNs allocated by the RIRs: 47419 Number of 32-bit ASNs visible in the Routing Table: 38953 Prefixes from 32-bit ASNs in the Routing Table: 209887 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: 449 Number of addresses announced to Internet: 3107637248 Equivalent to 185 /8s, 58 /16s and 200 /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: 326128 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266802 Total APNIC prefixes after maximum aggregation: 79255 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 256913 Unique aggregates announced from the APNIC address blocks: 105548 APNIC Region origin ASes present in the Internet Routing Table: 14799 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 4520 APNIC Region transit ASes present in the Internet Routing Table: 1973 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: 10349 Number of APNIC addresses announced to Internet: 750181376 Equivalent to 44 /8s, 182 /16s and 220 /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: 294086 Total ARIN prefixes after maximum aggregation: 133675 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295450 Unique aggregates announced from the ARIN address blocks: 142646 ARIN Region origin ASes present in the Internet Routing Table: 19306 ARIN Prefixes per ASN: 15.30 ARIN Region origin ASes announcing only one prefix: 7068 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: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5331 Number of ARIN addresses announced to Internet: 1349547008 Equivalent to 80 /8s, 112 /16s and 116 /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: 279004 Total RIPE prefixes after maximum aggregation: 137848 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 278330 Unique aggregates announced from the RIPE address blocks: 179884 RIPE Region origin ASes present in the Internet Routing Table: 29046 RIPE Prefixes per ASN: 9.58 RIPE Region origin ASes announcing only one prefix: 12084 RIPE Region transit ASes present in the Internet Routing Table: 4009 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: 12698 Number of RIPE addresses announced to Internet: 732221696 Equivalent to 43 /8s, 164 /16s and 209 /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: 124920 Total LACNIC prefixes after maximum aggregation: 30205 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121128 Unique aggregates announced from the LACNIC address blocks: 49478 LACNIC Region origin ASes present in the Internet Routing Table: 11281 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2537 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9248 Number of LACNIC addresses announced to Internet: 170746112 Equivalent to 10 /8s, 45 /16s and 97 /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: 35061 Total AfriNIC prefixes after maximum aggregation: 6835 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 48661 Unique aggregates announced from the AfriNIC address blocks: 15839 AfriNIC Region origin ASes present in the Internet Routing Table: 1967 AfriNIC Prefixes per ASN: 24.74 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 386 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: 1327 Number of AfriNIC addresses announced to Internet: 104691456 Equivalent to 6 /8s, 61 /16s and 119 /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 6137 838 615 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3937 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3664 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3010 811 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2912 862 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2170 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 14361 40863 5383 AMAZON-02, US 11492 4734 314 823 CABLEONE, US 22773 3961 3062 317 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3667 1320 81 SHAW, CA 174 3286 8766 829 COGENT-174, US 396982 3229 3858 445 GOOGLE-CLOUD-PLATFORM, US 749 3221 54766 2472 DNIC-AS-00749, US 16625 3028 1289 2203 AKAMAI-AS, US 4155 3000 233 1731 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 7484 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4021 3395 127 AKAMAI-ASN1, NL 9009 3869 364 2190 M247, RO 12389 3120 2316 867 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 1617 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 12370 3280 573 UNINET, MX 10620 3494 473 1048 Telmex Colombia S.A., CO 13999 2543 511 348 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 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 1180 371 22 Telefonica del Peru S.A.A., PE 22884 1064 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1009 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 1503 1498 380 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1245 389 20 LINKdotNET-AS, EG 29571 1241 102 51 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1066 523 46 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 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 14361 40863 5383 AMAZON-02, US 9808 13267 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12370 3280 573 UNINET, MX 12479 7484 1711 149 UNI2-AS, ES 7545 6137 838 615 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4734 314 823 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4021 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 12370 11797 UNINET, MX 12479 7484 7335 UNI2-AS, ES 7545 6137 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4454 4429 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4734 3911 CABLEONE, US 7552 3937 3910 VIETEL-AS-AP Viettel Group, VN 20940 4021 3894 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 23.135.216.0/24 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 /16:13770 /17:8215 /18:13466 /19:24596 /20:44291 /21:52026 /22:112549 /23:103591 /24:624029 /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 6569 12370 UNINET, MX 12479 6445 7484 UNI2-AS, ES 11492 3550 4734 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3465 3667 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2507 3961 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2440 14361 AMAZON-02, US 30036 2309 2651 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3494 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) ---------------------------------------------- 1:2418 2:1544 3:925 4:10 5:4819 6:157 7:6 8:1543 9:4 11:172 12:1250 13:561 14:2616 15:398 16:303 17:387 18:903 20:571 21:4 22:188 23:7879 24:2707 25:2 27:2813 29:19 31:3362 32:30 33:1 34:81 35:266 36:4326 37:4543 38:9383 39:1030 40:281 41:4348 42:1966 43:2706 44:380 45:18956 46:5125 47:343 49:2010 50:2055 51:591 52:1610 54:369 55:1109 56:11 57:286 58:2246 59:1289 60:1182 61:2880 62:3054 63:1772 64:5623 65:2131 66:4856 67:3101 68:1076 69:3927 70:1031 71:637 72:2878 74:2830 75:1506 76:600 77:2781 78:1918 79:1757 80:2242 81:2091 82:3320 83:1457 84:1974 85:3498 86:1098 87:2130 88:1355 89:4497 90:804 91:8420 92:2785 93:2984 94:4156 95:4461 96:1470 97:312 98:947 99:751 100:71 101:1218 102:4102 103:32302 104:5290 105:784 106:877 107:2654 108:1221 109:4203 110:2235 111:3657 112:2532 113:1826 114:1992 115:2288 116:2071 117:2806 118:3060 119:1928 120:2206 121:1354 122:2790 123:2253 124:1669 125:2877 126:91 128:1597 129:963 130:1298 131:2155 132:790 133:458 134:1605 135:364 136:1487 137:1325 138:2825 139:1603 140:1626 141:1539 142:1914 143:2029 144:1247 145:608 146:2182 147:2113 148:2730 149:2913 150:1264 151:2414 152:2121 153:629 154:7433 155:2022 156:3504 157:1989 158:1421 159:2562 160:3614 161:1954 162:3919 163:2301 164:1917 165:2574 166:1557 167:2081 168:3815 169:783 170:5363 171:1006 172:4250 173:3405 174:902 175:1343 176:3797 177:4751 178:4111 179:2316 180:2605 181:4198 182:3708 183:2425 184:2079 185:21663 186:5418 187:4647 188:4271 189:4371 190:9677 191:1540 192:11412 193:9474 194:7796 195:5561 196:3304 197:3228 198:6245 199:8671 200:8235 201:6342 202:10421 203:10660 204:4576 205:3682 206:4548 207:3649 208:4266 209:5236 210:4742 211:2666 212:4686 213:3864 214:1041 215:52 216:6867 217:3317 218:1462 219:394 220:2151 221:1219 222:752 223:2868 End of report