IPv4 R&E Routing Table Report 21:10 GMT Sat 26 Jul, 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: 991289 Prefixes after maximum aggregation (per Origin AS): 383704 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 487812 Number of IPv4 prefixes with a valid ROA: 557747 Number of IPv4 prefixes with an invalid ROA: 135 Number of IPv4 prefixes with no ROA: 433407 Total ASes present in the Internet Routing Table: 77058 Prefixes per ASN: 12.86 Origin-only ASes present in the Internet Routing Table: 65997 Origin ASes announcing only one prefix: 26954 Transit ASes present in the Internet Routing Table: 11061 Transit-only ASes present in the Internet Routing Table: 557 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 1131 Number of instances of unregistered ASNs: 1169 Number of 32-bit ASNs allocated by the RIRs: 46946 Number of 32-bit ASNs visible in the Routing Table: 38657 Prefixes from 32-bit ASNs in the Routing Table: 206350 Number of bogon 32-bit ASNs visible in the Routing Table: 101 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 460 Number of addresses announced to Internet: 3107123712 Equivalent to 185 /8s, 50 /16s and 242 /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: 323412 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 262285 Total APNIC prefixes after maximum aggregation: 77985 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 253239 Unique aggregates announced from the APNIC address blocks: 105009 APNIC Region origin ASes present in the Internet Routing Table: 14723 APNIC Prefixes per ASN: 17.20 APNIC Region origin ASes announcing only one prefix: 4505 APNIC Region transit ASes present in the Internet Routing Table: 1980 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: 10265 Number of APNIC addresses announced to Internet: 749245952 Equivalent to 44 /8s, 168 /16s and 150 /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: 291719 Total ARIN prefixes after maximum aggregation: 132159 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293508 Unique aggregates announced from the ARIN address blocks: 141440 ARIN Region origin ASes present in the Internet Routing Table: 19240 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7036 ARIN Region transit ASes present in the Internet Routing Table: 1995 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5264 Number of ARIN addresses announced to Internet: 1349255680 Equivalent to 80 /8s, 108 /16s and 2 /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: 276756 Total RIPE prefixes after maximum aggregation: 136301 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275713 Unique aggregates announced from the RIPE address blocks: 177980 RIPE Region origin ASes present in the Internet Routing Table: 28954 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12052 RIPE Region transit ASes present in the Internet Routing Table: 3997 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12588 Number of RIPE addresses announced to Internet: 732176640 Equivalent to 43 /8s, 164 /16s and 33 /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: 124796 Total LACNIC prefixes after maximum aggregation: 29744 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 121067 Unique aggregates announced from the LACNIC address blocks: 49090 LACNIC Region origin ASes present in the Internet Routing Table: 11272 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2514 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9239 Number of LACNIC addresses announced to Internet: 171151616 Equivalent to 10 /8s, 51 /16s and 145 /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: 34602 Total AfriNIC prefixes after maximum aggregation: 6764 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 47301 Unique aggregates announced from the AfriNIC address blocks: 13911 AfriNIC Region origin ASes present in the Internet Routing Table: 1935 AfriNIC Prefixes per ASN: 24.44 AfriNIC Region origin ASes announcing only one prefix: 699 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: 1301 Number of AfriNIC addresses announced to Internet: 105037312 Equivalent to 6 /8s, 66 /16s and 190 /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 12058 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6137 840 617 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4502 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3696 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3279 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2911 864 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2814 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2180 429 190 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 13690 40975 5284 AMAZON-02, US 11492 4819 319 605 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3464 8771 862 COGENT-174, US 22773 3342 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3197 3856 433 GOOGLE-CLOUD-PLATFORM, US 16625 3063 1297 2223 AKAMAI-AS, US 4155 2874 218 1726 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 7595 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4038 3395 127 AKAMAI-ASN1, NL 9009 3816 362 2132 M247, RO 12389 3116 2315 870 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2321 164 1689 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1580 1852 14 TE-AS TE-AS, EG 203020 1523 191 672 HOSTROYALE, IN 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 12319 3260 575 UNINET, MX 10620 3484 474 1024 Telmex Colombia S.A., CO 13999 2525 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1369 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1207 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1188 371 22 Telefonica del Peru S.A.A., PE 22884 1069 71 371 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1020 373 162 Axtel, S.A.B. de C.V., MX 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 1732 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1312 1489 355 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1228 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 832 520 43 Vodafone-, EG 36914 577 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 532 56 54 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 13690 40975 5284 AMAZON-02, US 8151 12319 3260 575 UNINET, MX 9808 12058 8761 115 CHINAMOBILE-CN China Mobile Communication 12479 7595 1712 148 UNI2-AS, ES 7545 6137 840 617 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4819 319 605 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4502 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4038 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 12058 11943 CHINAMOBILE-CN China Mobile Communications Grou 8151 12319 11744 UNINET, MX 12479 7595 7447 UNI2-AS, ES 7545 6137 5520 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4502 4477 FPT-AS-AP FPT Telecom Company, VN 11492 4819 4214 CABLEONE, US 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 20940 4038 3911 AKAMAI-ASN1, NL 7552 3918 3891 VIETEL-AS-AP Viettel Group, VN 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-spar 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /13:582 /14:1210 /15:2150 /16:13791 /17:8226 /18:13514 /19:24569 /20:43965 /21:51761 /22:112012 /23:102971 /24:616076 /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 12479 6543 7595 UNI2-AS, ES 8151 6537 12319 UNINET, MX 11492 3611 4819 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2351 13690 AMAZON-02, US 30036 2286 2627 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3484 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) ---------------------------------------------- 1:2408 2:1523 3:858 4:10 5:4759 6:163 7:6 8:1556 9:1 11:172 12:1339 13:463 14:2571 15:367 16:286 17:375 18:897 20:559 21:4 22:188 23:7773 24:2723 25:2 27:2804 29:19 31:3353 32:35 33:1 34:80 35:260 36:3836 37:4562 38:9483 39:940 40:248 41:4247 42:1995 43:2689 44:379 45:18613 46:5097 47:336 49:1880 50:2015 51:591 52:1553 54:325 55:1110 56:11 57:275 58:2175 59:1293 60:1171 61:2793 62:2979 63:1793 64:5542 65:2154 66:4738 67:3111 68:1070 69:3905 70:1042 71:629 72:2854 74:2809 75:1506 76:606 77:2776 78:1919 79:1690 80:2204 81:2057 82:3196 83:1437 84:1896 85:3485 86:1090 87:2135 88:1345 89:4406 90:777 91:8421 92:2706 93:2956 94:4070 95:4421 96:1472 97:310 98:954 99:692 100:71 101:1189 102:3895 103:32260 104:5244 105:801 106:971 107:2655 108:1268 109:4187 110:2231 111:3325 112:2281 113:1842 114:1968 115:2257 116:2066 117:2623 118:2985 119:1895 120:2160 121:1334 122:2793 123:2245 124:1656 125:2871 126:91 128:1619 129:968 130:1312 131:2055 132:773 133:450 134:1591 135:351 136:1465 137:1323 138:2835 139:1586 140:1631 141:1515 142:1914 143:1945 144:1173 145:565 146:2181 147:2097 148:2724 149:2932 150:1281 151:2221 152:2074 153:590 154:7532 155:1842 156:3082 157:1952 158:1352 159:2528 160:3596 161:1901 162:3882 163:2257 164:1868 165:2383 166:1525 167:2018 168:3979 169:787 170:5132 171:1002 172:4240 173:3397 174:917 175:1325 176:3735 177:4772 178:3931 179:2310 180:2586 181:4131 182:3530 183:2184 184:2082 185:21608 186:5250 187:4675 188:4271 189:4357 190:9561 191:1496 192:11352 193:9476 194:7773 195:5587 196:3291 197:3186 198:6206 199:8615 200:8295 201:6380 202:10391 203:10676 204:4668 205:3641 206:4526 207:3641 208:4287 209:5183 210:4660 211:2599 212:4552 213:3821 214:1021 215:48 216:6762 217:3235 218:1373 219:395 220:2144 221:1203 222:745 223:2708 End of report