IPv4 R&E Routing Table Report 21:10 GMT Sun 15 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: 986282 Prefixes after maximum aggregation (per Origin AS): 380548 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482527 Number of IPv4 prefixes with a valid ROA: 550003 Number of IPv4 prefixes with an invalid ROA: 150 Number of IPv4 prefixes with no ROA: 436125 Total ASes present in the Internet Routing Table: 76914 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65897 Origin ASes announcing only one prefix: 26897 Transit ASes present in the Internet Routing Table: 11017 Transit-only ASes present in the Internet Routing Table: 560 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 55 Max AS path prepend of ASN ( 24691) 51 Prefixes from unregistered ASNs in the Routing Table: 1133 Number of instances of unregistered ASNs: 1167 Number of 32-bit ASNs allocated by the RIRs: 46661 Number of 32-bit ASNs visible in the Routing Table: 38371 Prefixes from 32-bit ASNs in the Routing Table: 203665 Number of bogon 32-bit ASNs visible in the Routing Table: 96 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 447 Number of addresses announced to Internet: 3109833728 Equivalent to 185 /8s, 92 /16s and 76 /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: 322959 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258642 Total APNIC prefixes after maximum aggregation: 77299 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250035 Unique aggregates announced from the APNIC address blocks: 104502 APNIC Region origin ASes present in the Internet Routing Table: 14622 APNIC Prefixes per ASN: 17.10 APNIC Region origin ASes announcing only one prefix: 4452 APNIC Region transit ASes present in the Internet Routing Table: 1957 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: 10146 Number of APNIC addresses announced to Internet: 748784128 Equivalent to 44 /8s, 161 /16s and 138 /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: 291273 Total ARIN prefixes after maximum aggregation: 131368 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 293174 Unique aggregates announced from the ARIN address blocks: 139407 ARIN Region origin ASes present in the Internet Routing Table: 19232 ARIN Prefixes per ASN: 15.24 ARIN Region origin ASes announcing only one prefix: 7027 ARIN Region transit ASes present in the Internet Routing Table: 1997 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: 5227 Number of ARIN addresses announced to Internet: 1352681472 Equivalent to 80 /8s, 160 /16s and 72 /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: 275430 Total RIPE prefixes after maximum aggregation: 134839 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 274057 Unique aggregates announced from the RIPE address blocks: 175733 RIPE Region origin ASes present in the Internet Routing Table: 28938 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12060 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: 55 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12496 Number of RIPE addresses announced to Internet: 731288320 Equivalent to 43 /8s, 150 /16s and 147 /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: 124150 Total LACNIC prefixes after maximum aggregation: 29575 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120458 Unique aggregates announced from the LACNIC address blocks: 48969 LACNIC Region origin ASes present in the Internet Routing Table: 11261 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2507 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: 9216 Number of LACNIC addresses announced to Internet: 171813888 Equivalent to 10 /8s, 61 /16s and 172 /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: 35654 Total AfriNIC prefixes after maximum aggregation: 6719 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48110 Unique aggregates announced from the AfriNIC address blocks: 13520 AfriNIC Region origin ASes present in the Internet Routing Table: 1923 AfriNIC Prefixes per ASN: 25.02 AfriNIC Region origin ASes announcing only one prefix: 699 AfriNIC Region transit ASes present in the Internet Routing Table: 375 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: 1286 Number of AfriNIC addresses announced to Internet: 105059072 Equivalent to 6 /8s, 67 /16s and 19 /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 847 651 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4450 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4313 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2886 856 531 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 13678 40939 5246 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3862 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 22773 3607 3037 211 ASN-CXA-ALL-CCI-22773-RDC, US 174 3546 8745 880 COGENT-174, US 749 3230 54783 2481 DNIC-AS-00749, US 396982 3186 3854 426 GOOGLE-CLOUD-PLATFORM, US 16625 3139 1313 2258 AKAMAI-AS, US 36352 2815 230 855 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 7697 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4064 3395 127 AKAMAI-ASN1, NL 9009 3887 358 2090 M247, RO 12389 3106 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 579 TELLCOM-AS, TR 212238 2246 164 1635 CDNEXT, GB 8452 1636 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 12195 3254 578 UNINET, MX 10620 3502 481 1019 Telmex Colombia S.A., CO 13999 2491 541 357 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 1201 371 22 Telefonica del Peru S.A.A., PE 22884 1063 70 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1035 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 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 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 559 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 13678 40939 5246 AMAZON-02, US 8151 12195 3254 578 UNINET, MX 9808 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7697 1713 148 UNI2-AS, ES 7545 6174 847 651 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4450 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4313 534 304 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 12195 11617 UNINET, MX 9808 11080 10980 CHINAMOBILE-CN China Mobile Communications Grou 12479 7697 7549 UNI2-AS, ES 7545 6174 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4450 4425 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4313 4009 BBIL-AP BHARTI Airtel Ltd., IN 20940 4064 3937 AKAMAI-ASN1, NL 7552 3919 3893 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 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, 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: 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 /15:2161 /16:13909 /17:8263 /18:13698 /19:24579 /20:44017 /21:51738 /22:112157 /23:102816 /24:610676 /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 6617 7697 UNI2-AS, ES 8151 6413 12195 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2821 3862 VIASAT-SP-BACKBONE, US 22773 2736 3607 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2371 13678 AMAZON-02, US 30036 2251 2593 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2189 3502 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) ---------------------------------------------- 1:2366 2:1518 3:816 4:10 5:4763 6:162 7:6 8:1572 9:1 11:172 12:1346 13:454 14:2520 15:360 16:285 17:378 18:921 20:545 21:4 22:188 23:7639 24:2869 25:2 27:2783 29:19 31:3296 32:36 33:1 34:80 35:256 36:3085 37:4580 38:9357 39:908 40:166 41:4232 42:1992 43:2610 44:384 45:18586 46:5132 47:317 49:1941 50:1890 51:591 52:1571 54:329 55:1090 56:11 57:269 58:2219 59:1183 60:1171 61:2798 62:2939 63:1801 64:5468 65:2064 66:4665 67:3071 68:1157 69:3948 70:1133 71:632 72:2831 74:2800 75:1512 76:616 77:2717 78:1899 79:1717 80:2217 81:2055 82:3167 83:1445 84:1877 85:3464 86:1082 87:2147 88:1330 89:4410 90:770 91:8413 92:2732 93:2918 94:3999 95:4359 96:1467 97:311 98:1022 99:696 100:73 101:1409 102:3842 103:32247 104:5149 105:761 106:1034 107:2690 108:1244 109:4089 110:2228 111:3274 112:2130 113:1806 114:1989 115:2142 116:2061 117:2571 118:2884 119:1910 120:2000 121:1380 122:2779 123:2197 124:1588 125:2860 126:91 128:1619 129:952 130:1311 131:2032 132:782 133:449 134:1529 135:346 136:1349 137:1309 138:2837 139:1597 140:1603 141:1510 142:1901 143:1837 144:1163 145:544 146:2185 147:2107 148:2700 149:2893 150:1253 151:1974 152:2094 153:577 154:7325 155:1743 156:2999 157:1921 158:1327 159:2494 160:3604 161:1855 162:3856 163:2216 164:1855 165:1985 166:1493 167:1962 168:4022 169:799 170:5121 171:1023 172:4485 173:3327 174:927 175:1303 176:3704 177:4688 178:3723 179:2314 180:2637 181:4059 182:3441 183:2095 184:2126 185:21583 186:5194 187:4517 188:4263 189:4273 190:9611 191:1490 192:11314 193:9488 194:7809 195:5546 196:3306 197:3657 198:6210 199:8507 200:8224 201:6369 202:10281 203:10661 204:4577 205:3655 206:4501 207:3615 208:4279 209:5165 210:4609 211:2535 212:4580 213:3744 214:1026 215:48 216:6769 217:3170 218:1355 219:389 220:2086 221:1139 222:725 223:2465 End of report