IPv4 R&E Routing Table Report 21:10 GMT Sat 10 May, 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: 982137 Prefixes after maximum aggregation (per Origin AS): 378092 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479155 Number of IPv4 prefixes with a valid ROA: 544069 Number of IPv4 prefixes with an invalid ROA: 147 Number of IPv4 prefixes with no ROA: 437920 Total ASes present in the Internet Routing Table: 76807 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65795 Origin ASes announcing only one prefix: 26961 Transit ASes present in the Internet Routing Table: 11012 Transit-only ASes present in the Internet Routing Table: 545 Paths with bogon ASNs present in the IPv4 Routing Table: 22 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 60 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 971 Number of instances of unregistered ASNs: 977 Number of 32-bit ASNs allocated by the RIRs: 46388 Number of 32-bit ASNs visible in the Routing Table: 38204 Prefixes from 32-bit ASNs in the Routing Table: 201827 Number of bogon 32-bit ASNs visible in the Routing Table: 32 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 467 Number of addresses announced to Internet: 3109647360 Equivalent to 185 /8s, 89 /16s and 116 /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: 321854 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257377 Total APNIC prefixes after maximum aggregation: 76978 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248539 Unique aggregates announced from the APNIC address blocks: 103165 APNIC Region origin ASes present in the Internet Routing Table: 14603 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4469 APNIC Region transit ASes present in the Internet Routing Table: 1968 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10122 Number of APNIC addresses announced to Internet: 748384000 Equivalent to 44 /8s, 155 /16s and 111 /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: 290528 Total ARIN prefixes after maximum aggregation: 130366 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 291859 Unique aggregates announced from the ARIN address blocks: 138624 ARIN Region origin ASes present in the Internet Routing Table: 19242 ARIN Prefixes per ASN: 15.17 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1992 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: 5201 Number of ARIN addresses announced to Internet: 1353178880 Equivalent to 80 /8s, 167 /16s and 223 /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: 273976 Total RIPE prefixes after maximum aggregation: 133965 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 271854 Unique aggregates announced from the RIPE address blocks: 174261 RIPE Region origin ASes present in the Internet Routing Table: 28906 RIPE Prefixes per ASN: 9.40 RIPE Region origin ASes announcing only one prefix: 12044 RIPE Region transit ASes present in the Internet Routing Table: 3984 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12418 Number of RIPE addresses announced to Internet: 730975488 Equivalent to 43 /8s, 145 /16s and 205 /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: 123770 Total LACNIC prefixes after maximum aggregation: 29398 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120174 Unique aggregates announced from the LACNIC address blocks: 48855 LACNIC Region origin ASes present in the Internet Routing Table: 11236 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2709 LACNIC Region transit ASes present in the Internet Routing Table: 2488 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9183 Number of LACNIC addresses announced to Internet: 171749376 Equivalent to 10 /8s, 60 /16s and 176 /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: 35515 Total AfriNIC prefixes after maximum aggregation: 6780 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49243 Unique aggregates announced from the AfriNIC address blocks: 13866 AfriNIC Region origin ASes present in the Internet Routing Table: 1914 AfriNIC Prefixes per ASN: 25.73 AfriNIC Region origin ASes announcing only one prefix: 700 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 60 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1280 Number of AfriNIC addresses announced to Internet: 105137152 Equivalent to 6 /8s, 68 /16s and 68 /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 10798 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6161 842 655 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4390 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4272 533 298 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3259 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2863 852 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2188 11523 648 KIXS-AS-KR Korea Telecom, KR 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 13322 40835 4803 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3621 1320 81 SHAW, CA 22773 3613 3052 212 ASN-CXA-ALL-CCI-22773-RDC, US 174 3449 8750 897 COGENT-174, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3146 3851 415 GOOGLE-CLOUD-PLATFORM, US 16625 3130 1314 2261 AKAMAI-AS, US 36352 2776 227 851 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 7696 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 4054 3395 127 AKAMAI-ASN1, NL 9009 3793 327 1987 M247, RO 12389 3069 2302 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2143 151 1578 CDNEXT, GB 8452 1647 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1420 94 736 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 12073 3247 582 UNINET, MX 10620 3505 481 1018 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1207 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1185 371 22 Telefonica del Peru S.A.A., PE 22884 1055 70 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 374 163 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1573 102 39 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1036 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 549 82 3 KENET-AS, KE 15399 528 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 13322 40835 4803 AMAZON-02, US 8151 12073 3247 582 UNINET, MX 9808 10798 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7696 1714 148 UNI2-AS, ES 7545 6161 842 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 18403 4390 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4272 533 298 BBIL-AP BHARTI Airtel Ltd., IN 20940 4054 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 12073 11491 UNINET, MX 9808 10798 10702 CHINAMOBILE-CN China Mobile Communications Grou 12479 7696 7548 UNI2-AS, ES 7545 6161 5506 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4390 4365 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4272 3974 BBIL-AP BHARTI Airtel Ltd., IN 20940 4054 3927 AKAMAI-ASN1, NL 7552 3908 3882 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 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 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 /9:16 /10:41 /11:93 /12:300 /13:582 /14:1223 /15:2168 /16:13988 /17:8281 /18:13718 /19:24613 /20:43729 /21:51723 /22:111970 /23:101915 /24:607760 /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 7696 UNI2-AS, ES 8151 6269 12073 UNINET, MX 11492 3533 4726 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3621 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2740 3613 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2325 13322 AMAZON-02, US 30036 2224 2565 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2191 3505 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) ---------------------------------------------- 1:2333 2:1528 3:706 4:11 5:4673 6:162 7:6 8:1569 9:1 11:172 12:1365 13:383 14:2516 15:353 16:285 17:372 18:918 20:518 21:4 22:188 23:7552 24:2807 25:2 27:2774 29:19 31:3251 32:37 33:1 34:80 35:208 36:2757 37:4639 38:9118 39:909 40:167 41:4225 42:1999 43:2578 44:376 45:18558 46:5062 47:294 49:1929 50:1894 51:590 52:1554 54:304 55:1094 56:11 57:258 58:2215 59:1216 60:1164 61:2771 62:2920 63:1812 64:5480 65:2119 66:4674 67:3070 68:1156 69:3930 70:1146 71:639 72:2873 74:2783 75:1619 76:614 77:2734 78:1889 79:1760 80:2201 81:2053 82:3159 83:1432 84:1854 85:3445 86:1050 87:2158 88:1316 89:4358 90:774 91:8347 92:2714 93:2893 94:4023 95:4347 96:1462 97:312 98:1020 99:677 100:72 101:1154 102:3925 103:32210 104:4997 105:768 106:1033 107:2645 108:1217 109:4078 110:2231 111:3357 112:2057 113:1788 114:1968 115:2205 116:2046 117:2668 118:2892 119:1955 120:1892 121:1373 122:2754 123:2183 124:1568 125:2845 126:91 128:1606 129:955 130:1304 131:1957 132:784 133:451 134:1537 135:331 136:1308 137:1304 138:2880 139:1642 140:1580 141:1505 142:1901 143:1715 144:1091 145:504 146:2162 147:2096 148:2612 149:2855 150:1246 151:1852 152:2086 153:564 154:8105 155:1688 156:3340 157:1902 158:1301 159:2445 160:3564 161:1891 162:3737 163:2148 164:1690 165:2202 166:1476 167:1902 168:4033 169:795 170:5083 171:1010 172:4423 173:3270 174:918 175:1301 176:3672 177:4688 178:3621 179:2274 180:2621 181:4063 182:3425 183:2082 184:2114 185:21570 186:5123 187:4442 188:4225 189:4245 190:9620 191:1471 192:11251 193:9492 194:7763 195:5507 196:3298 197:3713 198:6209 199:8484 200:8214 201:6337 202:10281 203:10620 204:4547 205:3623 206:4516 207:3571 208:4282 209:5214 210:4590 211:2537 212:4527 213:3708 214:1031 215:48 216:6737 217:3130 218:1342 219:376 220:2083 221:1080 222:718 223:2362 End of report