IPv4 R&E Routing Table Report 21:10 GMT Thu 10 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: 986185 Prefixes after maximum aggregation (per Origin AS): 382383 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485350 Number of IPv4 prefixes with a valid ROA: 554555 Number of IPv4 prefixes with an invalid ROA: 142 Number of IPv4 prefixes with no ROA: 431488 Total ASes present in the Internet Routing Table: 76960 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65917 Origin ASes announcing only one prefix: 26887 Transit ASes present in the Internet Routing Table: 11043 Transit-only ASes present in the Internet Routing Table: 550 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 40933) 31 Prefixes from unregistered ASNs in the Routing Table: 1150 Number of instances of unregistered ASNs: 1186 Number of 32-bit ASNs allocated by the RIRs: 46773 Number of 32-bit ASNs visible in the Routing Table: 38520 Prefixes from 32-bit ASNs in the Routing Table: 204989 Number of bogon 32-bit ASNs visible in the Routing Table: 112 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 479 Number of addresses announced to Internet: 3105913600 Equivalent to 185 /8s, 32 /16s and 123 /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: 322643 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260675 Total APNIC prefixes after maximum aggregation: 77619 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251849 Unique aggregates announced from the APNIC address blocks: 104836 APNIC Region origin ASes present in the Internet Routing Table: 14695 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4473 APNIC Region transit ASes present in the Internet Routing Table: 1977 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10222 Number of APNIC addresses announced to Internet: 749181952 Equivalent to 44 /8s, 167 /16s and 156 /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: 291307 Total ARIN prefixes after maximum aggregation: 131851 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293306 Unique aggregates announced from the ARIN address blocks: 140548 ARIN Region origin ASes present in the Internet Routing Table: 19215 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7022 ARIN Region transit ASes present in the Internet Routing Table: 1993 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: 5246 Number of ARIN addresses announced to Internet: 1349168896 Equivalent to 80 /8s, 106 /16s and 175 /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: 276323 Total RIPE prefixes after maximum aggregation: 135761 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 275108 Unique aggregates announced from the RIPE address blocks: 176804 RIPE Region origin ASes present in the Internet Routing Table: 28930 RIPE Prefixes per ASN: 9.51 RIPE Region origin ASes announcing only one prefix: 12036 RIPE Region transit ASes present in the Internet Routing Table: 3985 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: 12538 Number of RIPE addresses announced to Internet: 731343616 Equivalent to 43 /8s, 151 /16s and 107 /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: 124482 Total LACNIC prefixes after maximum aggregation: 29696 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120833 Unique aggregates announced from the LACNIC address blocks: 49081 LACNIC Region origin ASes present in the Internet Routing Table: 11270 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2520 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9231 Number of LACNIC addresses announced to Internet: 171194368 Equivalent to 10 /8s, 52 /16s and 56 /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: 32248 Total AfriNIC prefixes after maximum aggregation: 6682 AfriNIC Deaggregation factor: 4.83 Prefixes being announced from the AfriNIC address blocks: 44609 Unique aggregates announced from the AfriNIC address blocks: 13659 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 23.27 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1283 Number of AfriNIC addresses announced to Internet: 104762624 Equivalent to 6 /8s, 62 /16s and 141 /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 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6148 840 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4359 535 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3926 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3279 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2649 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2182 434 193 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 13667 40959 5257 AMAZON-02, US 11492 4787 317 605 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 22773 3605 3038 209 ASN-CXA-ALL-CCI-22773-RDC, US 174 3467 8769 848 COGENT-174, US 749 3225 54767 2476 DNIC-AS-00749, US 396982 3195 3854 432 GOOGLE-CLOUD-PLATFORM, US 16625 3108 1309 2249 AKAMAI-AS, US 4155 2839 216 1738 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 7638 1713 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4080 3395 127 AKAMAI-ASN1, NL 9009 3766 358 2097 M247, RO 12389 3118 2305 882 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2346 167 1714 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 203020 1426 160 609 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 12291 3255 575 UNINET, MX 10620 3510 481 1021 Telmex Colombia S.A., CO 13999 2526 538 352 Mega Cable, S.A. de C.V., MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 11664 1188 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 70 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1023 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 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 24835 1116 633 33 RAYA-AS, EG 36992 872 1430 279 ETISALAT-MISR, EG 36935 779 522 46 Vodafone-, EG 37069 600 1112 11 MOBINIL, EG 24863 597 389 22 LINKdotNET-AS, EG 36914 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 531 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 13667 40959 5257 AMAZON-02, US 8151 12291 3255 575 UNINET, MX 9808 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7638 1713 150 UNI2-AS, ES 7545 6148 840 623 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4787 317 605 CABLEONE, US 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4359 535 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4080 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 12291 11716 UNINET, MX 9808 11755 11639 CHINAMOBILE-CN China Mobile Communications Grou 12479 7638 7488 UNI2-AS, ES 7545 6148 5525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4454 4429 FPT-AS-AP FPT Telecom Company, VN 11492 4787 4182 CABLEONE, US 9498 4359 4047 BBIL-AP BHARTI Airtel Ltd., IN 20940 4080 3953 AKAMAI-ASN1, NL 7552 3926 3899 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: 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 23.142.24.0/24 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 /13:580 /14:1203 /15:2149 /16:13759 /17:8230 /18:13445 /19:24467 /20:43421 /21:51623 /22:110895 /23:102886 /24:613065 /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 6571 7638 UNI2-AS, ES 8151 6513 12291 UNINET, MX 11492 3581 4787 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2734 3605 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13667 AMAZON-02, US 30036 2271 2613 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2197 3510 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) ---------------------------------------------- 1:2398 2:1528 3:848 4:10 5:4741 6:161 7:6 8:1558 9:1 11:172 12:1341 13:457 14:2554 15:364 16:285 17:377 18:896 20:556 21:4 22:188 23:7752 24:2729 25:2 27:2815 29:19 31:3318 32:35 33:1 34:80 35:259 36:3526 37:4577 38:9395 39:908 40:236 41:4049 42:1948 43:2678 44:375 45:18429 46:5101 47:334 49:1884 50:1891 51:592 52:1554 54:324 55:1107 56:11 57:273 58:2188 59:1187 60:1174 61:2790 62:2879 63:1794 64:5531 65:2062 66:4722 67:3107 68:1124 69:3917 70:1108 71:631 72:2873 74:2793 75:1511 76:608 77:2762 78:1920 79:1720 80:2191 81:2071 82:3166 83:1441 84:1862 85:3461 86:1089 87:2137 88:1347 89:4423 90:774 91:8407 92:2747 93:2946 94:4086 95:4402 96:1480 97:309 98:1003 99:697 100:72 101:1179 102:3896 103:32272 104:5271 105:787 106:975 107:2657 108:1258 109:4153 110:2233 111:3272 112:2221 113:1842 114:1963 115:2250 116:2058 117:2595 118:2987 119:1915 120:2116 121:1332 122:2788 123:2229 124:1633 125:2880 126:91 128:1611 129:965 130:1302 131:2060 132:786 133:450 134:1577 135:349 136:1428 137:1320 138:2834 139:1592 140:1633 141:1526 142:1898 143:1965 144:1176 145:558 146:2178 147:2104 148:2701 149:2940 150:1227 151:2211 152:2078 153:592 154:7433 155:1822 156:2928 157:1933 158:1345 159:2497 160:3621 161:1858 162:3883 163:2242 164:1866 165:2073 166:1504 167:2022 168:3984 169:785 170:5131 171:1008 172:4431 173:3361 174:927 175:1326 176:3713 177:4711 178:3936 179:2331 180:2606 181:4128 182:3492 183:2133 184:2108 185:21561 186:5239 187:4624 188:4266 189:4313 190:9640 191:1471 192:11333 193:9472 194:7775 195:5561 196:3276 197:3145 198:6209 199:8533 200:8215 201:6385 202:10363 203:10649 204:4598 205:3672 206:4528 207:3620 208:4293 209:5157 210:4618 211:2571 212:4555 213:3794 214:1026 215:46 216:6784 217:3158 218:1361 219:393 220:2142 221:1186 222:713 223:2609 End of report