IPv4 R&E Routing Table Report 21:10 GMT Thu 19 Jun, 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: 986277 Prefixes after maximum aggregation (per Origin AS): 380421 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482354 Number of IPv4 prefixes with a valid ROA: 550190 Number of IPv4 prefixes with an invalid ROA: 148 Number of IPv4 prefixes with no ROA: 435939 Total ASes present in the Internet Routing Table: 76879 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65856 Origin ASes announcing only one prefix: 26879 Transit ASes present in the Internet Routing Table: 11023 Transit-only ASes present in the Internet Routing Table: 548 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 78 Max AS path prepend of ASN (133647) 73 Prefixes from unregistered ASNs in the Routing Table: 1151 Number of instances of unregistered ASNs: 1189 Number of 32-bit ASNs allocated by the RIRs: 46680 Number of 32-bit ASNs visible in the Routing Table: 38374 Prefixes from 32-bit ASNs in the Routing Table: 204058 Number of bogon 32-bit ASNs visible in the Routing Table: 102 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 455 Number of addresses announced to Internet: 3106004480 Equivalent to 185 /8s, 33 /16s and 222 /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: 322918 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259293 Total APNIC prefixes after maximum aggregation: 77323 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250504 Unique aggregates announced from the APNIC address blocks: 104327 APNIC Region origin ASes present in the Internet Routing Table: 14624 APNIC Prefixes per ASN: 17.13 APNIC Region origin ASes announcing only one prefix: 4446 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 78 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10148 Number of APNIC addresses announced to Internet: 748691712 Equivalent to 44 /8s, 160 /16s and 33 /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: 291146 Total ARIN prefixes after maximum aggregation: 131231 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 293015 Unique aggregates announced from the ARIN address blocks: 139414 ARIN Region origin ASes present in the Internet Routing Table: 19235 ARIN Prefixes per ASN: 15.23 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 2000 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: 5238 Number of ARIN addresses announced to Internet: 1349543936 Equivalent to 80 /8s, 112 /16s and 104 /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: 275370 Total RIPE prefixes after maximum aggregation: 134927 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 274089 Unique aggregates announced from the RIPE address blocks: 175727 RIPE Region origin ASes present in the Internet Routing Table: 28913 RIPE Prefixes per ASN: 9.48 RIPE Region origin ASes announcing only one prefix: 12049 RIPE Region transit ASes present in the Internet Routing Table: 3993 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12489 Number of RIPE addresses announced to Internet: 731171328 Equivalent to 43 /8s, 148 /16s and 202 /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: 124017 Total LACNIC prefixes after maximum aggregation: 29569 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120558 Unique aggregates announced from the LACNIC address blocks: 48952 LACNIC Region origin ASes present in the Internet Routing Table: 11262 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2502 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9212 Number of LACNIC addresses announced to Internet: 171294208 Equivalent to 10 /8s, 53 /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: 35300 Total AfriNIC prefixes after maximum aggregation: 6626 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 47655 Unique aggregates announced from the AfriNIC address blocks: 13530 AfriNIC Region origin ASes present in the Internet Routing Table: 1924 AfriNIC Prefixes per ASN: 24.77 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 27 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1287 Number of AfriNIC addresses announced to Internet: 105090816 Equivalent to 6 /8s, 67 /16s and 143 /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 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 7545 6196 847 650 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4475 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4328 534 309 BBIL-AP BHARTI Airtel Ltd., IN 7552 3917 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2888 856 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2191 811 178 CMNET-JIANGSU-AP China Mobile communicati 4755 2176 434 194 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 13642 40935 5238 AMAZON-02, US 11492 4780 317 603 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 22773 3605 3037 210 ASN-CXA-ALL-CCI-22773-RDC, US 174 3547 8744 869 COGENT-174, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3191 3854 427 GOOGLE-CLOUD-PLATFORM, US 16625 3133 1311 2260 AKAMAI-AS, US 36352 2816 230 846 AS-COLOCROSSING, 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 7674 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 4064 3395 127 AKAMAI-ASN1, NL 9009 3887 358 2090 M247, RO 12389 3107 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 576 TELLCOM-AS, TR 212238 2319 170 1701 CDNEXT, GB 8452 1627 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1413 94 737 CLOUVIDER Clouvider - Global ASN, GB 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 12206 3256 574 UNINET, MX 10620 3501 481 1018 Telmex Colombia S.A., CO 13999 2536 537 353 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1208 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1199 371 22 Telefonica del Peru S.A.A., PE 22884 1063 70 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1048 2503 52 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 1820 644 27 RAYA-AS, EG 24863 1624 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1078 523 47 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 566 82 3 KENET-AS, KE 15399 530 56 53 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 13642 40935 5238 AMAZON-02, US 8151 12206 3256 574 UNINET, MX 9808 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 12479 7674 1713 148 UNI2-AS, ES 7545 6196 847 650 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4780 317 603 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 18403 4475 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4328 534 309 BBIL-AP BHARTI Airtel Ltd., IN 20940 4064 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 8151 12206 11632 UNINET, MX 9808 11227 11122 CHINAMOBILE-CN China Mobile Communications Grou 12479 7674 7526 UNI2-AS, ES 7545 6196 5546 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4475 4450 FPT-AS-AP FPT Telecom Company, VN 11492 4780 4177 CABLEONE, US 9498 4328 4019 BBIL-AP BHARTI Airtel Ltd., IN 20940 4064 3937 AKAMAI-ASN1, NL 7552 3917 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 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 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: 6939 HURRICANE, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:300 /13:584 /14:1209 /15:2153 /16:13850 /17:8258 /18:13531 /19:24560 /20:44006 /21:51756 /22:112160 /23:102868 /24:610878 /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 6596 7674 UNI2-AS, ES 8151 6422 12206 UNINET, MX 11492 3576 4780 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2735 3605 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2353 13642 AMAZON-02, US 30036 2257 2599 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3501 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) ---------------------------------------------- 1:2376 2:1523 3:821 4:10 5:4767 6:161 7:6 8:1568 9:1 11:172 12:1347 13:452 14:2524 15:361 16:285 17:377 18:922 20:547 21:4 22:188 23:7640 24:2893 25:2 27:2783 29:19 31:3295 32:35 33:1 34:80 35:255 36:3148 37:4582 38:9367 39:906 40:174 41:4258 42:1993 43:2621 44:383 45:18596 46:5111 47:319 49:1945 50:1887 51:591 52:1566 54:319 55:1081 56:11 57:271 58:2217 59:1185 60:1172 61:2793 62:2937 63:1798 64:5483 65:2061 66:4673 67:3078 68:1152 69:3942 70:1133 71:631 72:2876 74:2806 75:1516 76:616 77:2726 78:1901 79:1714 80:2208 81:2057 82:3174 83:1443 84:1871 85:3462 86:1087 87:2117 88:1338 89:4415 90:770 91:8417 92:2734 93:2920 94:4023 95:4367 96:1472 97:311 98:1022 99:687 100:72 101:1408 102:3870 103:32358 104:5163 105:764 106:1043 107:2686 108:1242 109:4101 110:2227 111:3281 112:2124 113:1806 114:1990 115:2161 116:2062 117:2574 118:2900 119:1902 120:2053 121:1377 122:2786 123:2209 124:1590 125:2866 126:91 128:1615 129:951 130:1310 131:2018 132:775 133:451 134:1555 135:346 136:1348 137:1310 138:2862 139:1592 140:1601 141:1500 142:1901 143:1847 144:1168 145:546 146:2185 147:2114 148:2695 149:2908 150:1263 151:1968 152:2088 153:590 154:7353 155:1751 156:2844 157:1923 158:1329 159:2498 160:3599 161:1850 162:3863 163:2229 164:1853 165:1999 166:1494 167:1974 168:3982 169:793 170:5134 171:1011 172:4474 173:3336 174:927 175:1302 176:3706 177:4725 178:3737 179:2319 180:2638 181:4076 182:3455 183:2074 184:2127 185:21565 186:5178 187:4559 188:4262 189:4314 190:9571 191:1498 192:11321 193:9482 194:7811 195:5538 196:3299 197:3235 198:6202 199:8502 200:8216 201:6386 202:10289 203:10687 204:4577 205:3657 206:4500 207:3593 208:4290 209:5172 210:4621 211:2535 212:4585 213:3748 214:1028 215:48 216:6782 217:3194 218:1356 219:389 220:2085 221:1145 222:724 223:2497 End of report