IPv4 R&E Routing Table Report 21:10 GMT Thu 12 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: 986397 Prefixes after maximum aggregation (per Origin AS): 380417 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482238 Number of IPv4 prefixes with a valid ROA: 550087 Number of IPv4 prefixes with an invalid ROA: 151 Number of IPv4 prefixes with no ROA: 436159 Total ASes present in the Internet Routing Table: 76904 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65885 Origin ASes announcing only one prefix: 26891 Transit ASes present in the Internet Routing Table: 11019 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN (139693) 35 Prefixes from unregistered ASNs in the Routing Table: 1122 Number of instances of unregistered ASNs: 1156 Number of 32-bit ASNs allocated by the RIRs: 46631 Number of 32-bit ASNs visible in the Routing Table: 38359 Prefixes from 32-bit ASNs in the Routing Table: 203510 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 451 Number of addresses announced to Internet: 3110290176 Equivalent to 185 /8s, 99 /16s and 67 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 322994 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258689 Total APNIC prefixes after maximum aggregation: 77243 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250012 Unique aggregates announced from the APNIC address blocks: 104279 APNIC Region origin ASes present in the Internet Routing Table: 14618 APNIC Prefixes per ASN: 17.10 APNIC Region origin ASes announcing only one prefix: 4451 APNIC Region transit ASes present in the Internet Routing Table: 1962 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10142 Number of APNIC addresses announced to Internet: 748820224 Equivalent to 44 /8s, 162 /16s and 23 /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: 291297 Total ARIN prefixes after maximum aggregation: 131287 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 293204 Unique aggregates announced from the ARIN address blocks: 139424 ARIN Region origin ASes present in the Internet Routing Table: 19230 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 1998 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: 5230 Number of ARIN addresses announced to Internet: 1353149952 Equivalent to 80 /8s, 167 /16s and 110 /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: 275434 Total RIPE prefixes after maximum aggregation: 134850 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 274029 Unique aggregates announced from the RIPE address blocks: 175631 RIPE Region origin ASes present in the Internet Routing Table: 28933 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 3992 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: 12490 Number of RIPE addresses announced to Internet: 731238912 Equivalent to 43 /8s, 149 /16s and 210 /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: 124215 Total LACNIC prefixes after maximum aggregation: 29575 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120495 Unique aggregates announced from the LACNIC address blocks: 48973 LACNIC Region origin ASes present in the Internet Routing Table: 11259 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2500 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: 9210 Number of LACNIC addresses announced to Internet: 171832064 Equivalent to 10 /8s, 61 /16s and 243 /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: 35640 Total AfriNIC prefixes after maximum aggregation: 6710 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48205 Unique aggregates announced from the AfriNIC address blocks: 13531 AfriNIC Region origin ASes present in the Internet Routing Table: 1924 AfriNIC Prefixes per ASN: 25.05 AfriNIC Region origin ASes announcing only one prefix: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1287 Number of AfriNIC addresses announced to Internet: 105038848 Equivalent to 6 /8s, 66 /16s and 196 /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 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6174 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4493 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4308 534 305 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3271 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2176 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13694 40941 5246 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 22773 3606 3037 211 ASN-CXA-ALL-CCI-22773-RDC, US 174 3536 8745 882 COGENT-174, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3185 3854 426 GOOGLE-CLOUD-PLATFORM, US 16625 3145 1314 2263 AKAMAI-AS, US 36352 2817 230 857 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 7704 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4065 3395 127 AKAMAI-ASN1, NL 9009 3887 358 2090 M247, RO 12389 3106 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 579 TELLCOM-AS, TR 212238 2265 165 1653 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1578 1852 14 TE-AS TE-AS, EG 62240 1414 94 738 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 12198 3255 580 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2490 541 360 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 1204 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1200 371 22 Telefonica del Peru S.A.A., PE 22884 1065 71 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1041 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 1820 644 27 RAYA-AS, EG 24863 1634 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 1066 523 47 Vodafone-, EG 20011 980 185 285 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 13694 40941 5246 AMAZON-02, US 8151 12198 3255 580 UNINET, MX 9808 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7704 1714 148 UNI2-AS, ES 7545 6174 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4493 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4308 534 305 BBIL-AP BHARTI Airtel Ltd., IN 20940 4065 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 12198 11618 UNINET, MX 9808 11080 10980 CHINAMOBILE-CN China Mobile Communications Grou 12479 7704 7556 UNI2-AS, ES 7545 6174 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4493 4468 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4308 4003 BBIL-AP BHARTI Airtel Ltd., IN 20940 4065 3938 AKAMAI-ASN1, NL 7552 3924 3898 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 398728 UNALLOCATED 8.10.134.0/24 174 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 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 54338 UNALLOCATED 8.33.241.0/24 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 /14:1220 /15:2165 /16:13903 /17:8260 /18:13696 /19:24572 /20:44025 /21:51845 /22:112112 /23:102812 /24:610739 /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 6622 7704 UNI2-AS, ES 8151 6412 12198 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2734 3606 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2375 13694 AMAZON-02, US 30036 2248 2590 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 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) ---------------------------------------------- 1:2371 2:1515 3:815 4:10 5:4703 6:162 7:6 8:1573 9:1 11:172 12:1350 13:451 14:2520 15:359 16:285 17:378 18:923 20:545 21:4 22:188 23:7636 24:2883 25:2 27:2778 29:19 31:3290 32:36 33:1 34:80 35:256 36:3084 37:4599 38:9347 39:907 40:174 41:4203 42:2013 43:2604 44:381 45:18582 46:5139 47:318 49:1941 50:1893 51:591 52:1569 54:328 55:1085 56:11 57:269 58:2217 59:1184 60:1171 61:2795 62:2936 63:1799 64:5473 65:2066 66:4675 67:3067 68:1155 69:3945 70:1137 71:633 72:2850 74:2801 75:1515 76:616 77:2716 78:1901 79:1716 80:2222 81:2066 82:3163 83:1449 84:1876 85:3459 86:1076 87:2145 88:1333 89:4402 90:770 91:8403 92:2731 93:2912 94:4023 95:4364 96:1465 97:311 98:1021 99:698 100:73 101:1411 102:3843 103:32270 104:5141 105:766 106:1034 107:2687 108:1240 109:4086 110:2227 111:3275 112:2128 113:1805 114:1993 115:2140 116:2057 117:2565 118:2895 119:1897 120:2001 121:1382 122:2777 123:2202 124:1586 125:2858 126:91 128:1619 129:951 130:1308 131:2019 132:778 133:449 134:1536 135:346 136:1352 137:1308 138:2837 139:1606 140:1602 141:1508 142:1900 143:1842 144:1123 145:543 146:2184 147:2111 148:2705 149:2888 150:1254 151:1965 152:2094 153:578 154:7473 155:1745 156:3003 157:1918 158:1325 159:2492 160:3601 161:1853 162:3851 163:2211 164:1854 165:1984 166:1494 167:1962 168:4018 169:799 170:5118 171:1023 172:4469 173:3330 174:927 175:1304 176:3700 177:4685 178:3722 179:2307 180:2637 181:4061 182:3443 183:2099 184:2124 185:21598 186:5188 187:4517 188:4256 189:4285 190:9609 191:1484 192:11321 193:9483 194:7809 195:5544 196:3290 197:3665 198:6209 199:8509 200:8220 201:6370 202:10282 203:10672 204:4581 205:3661 206:4517 207:3618 208:4272 209:5166 210:4609 211:2535 212:4577 213:3741 214:1027 215:48 216:6780 217:3165 218:1355 219:390 220:2089 221:1139 222:724 223:2459 End of report