IPv4 R&E Routing Table Report 21:10 GMT Sat 06 Sep, 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: 997931 Prefixes after maximum aggregation (per Origin AS): 387574 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492894 Number of IPv4 prefixes with a valid ROA: 567823 Number of IPv4 prefixes with an invalid ROA: 164 Number of IPv4 prefixes with no ROA: 429944 Total ASes present in the Internet Routing Table: 77241 Prefixes per ASN: 12.92 Origin-only ASes present in the Internet Routing Table: 66160 Origin ASes announcing only one prefix: 27010 Transit ASes present in the Internet Routing Table: 11081 Transit-only ASes present in the Internet Routing Table: 547 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 92 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1040 Number of instances of unregistered ASNs: 1069 Number of 32-bit ASNs allocated by the RIRs: 47334 Number of 32-bit ASNs visible in the Routing Table: 38906 Prefixes from 32-bit ASNs in the Routing Table: 209104 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 446 Number of addresses announced to Internet: 3106832128 Equivalent to 185 /8s, 46 /16s and 127 /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: 325438 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265388 Total APNIC prefixes after maximum aggregation: 78909 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255730 Unique aggregates announced from the APNIC address blocks: 105484 APNIC Region origin ASes present in the Internet Routing Table: 14777 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4509 APNIC Region transit ASes present in the Internet Routing Table: 1976 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10328 Number of APNIC addresses announced to Internet: 749955584 Equivalent to 44 /8s, 179 /16s and 106 /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: 293099 Total ARIN prefixes after maximum aggregation: 133305 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294803 Unique aggregates announced from the ARIN address blocks: 142460 ARIN Region origin ASes present in the Internet Routing Table: 19287 ARIN Prefixes per ASN: 15.29 ARIN Region origin ASes announcing only one prefix: 7051 ARIN Region transit ASes present in the Internet Routing Table: 1982 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5318 Number of ARIN addresses announced to Internet: 1349194752 Equivalent to 80 /8s, 107 /16s and 20 /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: 278576 Total RIPE prefixes after maximum aggregation: 137673 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 277745 Unique aggregates announced from the RIPE address blocks: 179445 RIPE Region origin ASes present in the Internet Routing Table: 29046 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12091 RIPE Region transit ASes present in the Internet Routing Table: 4004 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12685 Number of RIPE addresses announced to Internet: 731962112 Equivalent to 43 /8s, 160 /16s and 219 /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: 124761 Total LACNIC prefixes after maximum aggregation: 30202 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120965 Unique aggregates announced from the LACNIC address blocks: 49408 LACNIC Region origin ASes present in the Internet Routing Table: 11283 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2645 LACNIC Region transit ASes present in the Internet Routing Table: 2541 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 92 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9253 Number of LACNIC addresses announced to Internet: 170710272 Equivalent to 10 /8s, 44 /16s and 213 /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: 35067 Total AfriNIC prefixes after maximum aggregation: 6792 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 48241 Unique aggregates announced from the AfriNIC address blocks: 15709 AfriNIC Region origin ASes present in the Internet Routing Table: 1960 AfriNIC Prefixes per ASN: 24.61 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1322 Number of AfriNIC addresses announced to Internet: 104765440 Equivalent to 6 /8s, 62 /16s and 152 /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 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4405 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3932 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3653 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3293 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2169 427 183 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 14319 40862 5419 AMAZON-02, US 11492 4732 314 822 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 22773 3748 3067 312 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3659 1320 82 SHAW, CA 396982 3225 3859 443 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 174 3136 8759 840 COGENT-174, US 16625 3052 1299 2213 AKAMAI-AS, US 4155 2983 232 1740 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 7492 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4033 3395 127 AKAMAI-ASN1, NL 9009 3857 364 2187 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2413 361 586 TELLCOM-AS, TR 212238 2411 171 1746 CDNEXT, GB 203020 1874 225 863 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1605 1852 14 TE-AS TE-AS, EG 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 12340 3277 574 UNINET, MX 10620 3486 472 1048 Telmex Colombia S.A., CO 13999 2529 510 352 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1216 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 22 Telefonica del Peru S.A.A., PE 22884 1061 70 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1012 2487 55 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 1824 652 28 RAYA-AS, EG 36992 1425 1495 377 ETISALAT-MISR, EG 29571 1371 102 38 ORANGE-COTE-IVOIRE, CI 36903 1250 554 97 MT-MPLS, MA 24863 1244 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1066 523 46 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 571 82 3 KENET-AS, KE 15399 548 57 59 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 14319 40862 5419 AMAZON-02, US 9808 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12340 3277 574 UNINET, MX 12479 7492 1711 150 UNI2-AS, ES 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4732 314 822 CABLEONE, US 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4405 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4033 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 9808 12913 12799 CHINAMOBILE-CN China Mobile Communications Grou 8151 12340 11766 UNINET, MX 12479 7492 7342 UNI2-AS, ES 7545 6140 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4405 4380 FPT-AS-AP FPT Telecom Company, VN 9498 4466 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4732 3910 CABLEONE, US 20940 4033 3906 AKAMAI-ASN1, NL 7552 3932 3905 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS 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: 21859 ZEN-ECN, 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 23.145.20.0/24 Origin: 63023 AS-GLOBALTELEHOST, US 23.145.20.0/24 Transit: 6461 ZAYO-6461, 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 /14:1209 /15:2149 /16:13748 /17:8205 /18:13459 /19:24590 /20:44296 /21:51893 /22:112400 /23:103478 /24:621462 /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 8151 6540 12340 UNINET, MX 12479 6447 7492 UNI2-AS, ES 11492 3548 4732 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3456 3659 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3748 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2411 14319 AMAZON-02, US 30036 2326 2669 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2206 3486 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) ---------------------------------------------- 1:2418 2:1542 3:933 4:10 5:4812 6:156 7:6 8:1538 9:4 11:172 12:1253 13:561 14:2614 15:397 16:302 17:388 18:902 20:568 21:4 22:188 23:7857 24:2706 25:2 27:2819 29:19 31:3357 32:29 33:1 34:81 35:268 36:4296 37:4526 38:9314 39:999 40:261 41:4264 42:1940 43:2691 44:381 45:18834 46:5144 47:342 49:1991 50:2056 51:591 52:1608 54:361 55:902 56:11 57:283 58:2241 59:1282 60:1183 61:2873 62:3044 63:1781 64:5618 65:2133 66:4841 67:3111 68:1070 69:3905 70:1031 71:635 72:2860 74:2819 75:1507 76:599 77:2780 78:1918 79:1751 80:2227 81:2094 82:3305 83:1454 84:1951 85:3494 86:1099 87:2129 88:1354 89:4479 90:803 91:8412 92:2770 93:2973 94:4159 95:4443 96:1468 97:310 98:950 99:735 100:71 101:1219 102:4032 103:32271 104:5281 105:776 106:876 107:2652 108:1218 109:4203 110:2222 111:3581 112:2467 113:1839 114:1979 115:2251 116:2067 117:2697 118:3037 119:1921 120:2204 121:1338 122:2795 123:2250 124:1664 125:2877 126:90 128:1598 129:967 130:1302 131:2161 132:784 133:460 134:1602 135:367 136:1488 137:1313 138:2823 139:1588 140:1625 141:1541 142:1913 143:2008 144:1221 145:607 146:2185 147:2114 148:2714 149:2913 150:1249 151:2357 152:2115 153:629 154:7409 155:1961 156:3367 157:1955 158:1417 159:2562 160:3602 161:1943 162:3904 163:2305 164:1910 165:2559 166:1556 167:2069 168:3828 169:784 170:5263 171:1002 172:4261 173:3408 174:903 175:1336 176:3795 177:4757 178:4034 179:2310 180:2580 181:4178 182:3665 183:2248 184:2069 185:21658 186:5354 187:4643 188:4283 189:4349 190:9682 191:1541 192:11399 193:9481 194:7798 195:5555 196:3298 197:3245 198:6232 199:8664 200:8214 201:6356 202:10439 203:10662 204:4568 205:3674 206:4548 207:3659 208:4261 209:5215 210:4741 211:2652 212:4668 213:3855 214:1036 215:51 216:6861 217:3300 218:1454 219:393 220:2152 221:1210 222:748 223:2808 End of report