IPv4 R&E Routing Table Report 21:10 GMT Sun 03 Aug, 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: 992999 Prefixes after maximum aggregation (per Origin AS): 384497 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488512 Number of IPv4 prefixes with a valid ROA: 547267 Number of IPv4 prefixes with an invalid ROA: 478 Number of IPv4 prefixes with no ROA: 445254 Total ASes present in the Internet Routing Table: 77085 Prefixes per ASN: 12.88 Origin-only ASes present in the Internet Routing Table: 65988 Origin ASes announcing only one prefix: 26939 Transit ASes present in the Internet Routing Table: 11097 Transit-only ASes present in the Internet Routing Table: 552 Paths with bogon ASNs present in the IPv4 Routing Table: 12 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1070 Number of instances of unregistered ASNs: 1114 Number of 32-bit ASNs allocated by the RIRs: 47047 Number of 32-bit ASNs visible in the Routing Table: 38691 Prefixes from 32-bit ASNs in the Routing Table: 206562 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 412 Number of addresses announced to Internet: 3107607296 Equivalent to 185 /8s, 58 /16s and 83 /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: 323781 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263140 Total APNIC prefixes after maximum aggregation: 78145 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254308 Unique aggregates announced from the APNIC address blocks: 105066 APNIC Region origin ASes present in the Internet Routing Table: 14727 APNIC Prefixes per ASN: 17.27 APNIC Region origin ASes announcing only one prefix: 4492 APNIC Region transit ASes present in the Internet Routing Table: 1986 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10262 Number of APNIC addresses announced to Internet: 749626880 Equivalent to 44 /8s, 174 /16s and 102 /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: 292291 Total ARIN prefixes after maximum aggregation: 132426 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293844 Unique aggregates announced from the ARIN address blocks: 141740 ARIN Region origin ASes present in the Internet Routing Table: 19260 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7046 ARIN Region transit ASes present in the Internet Routing Table: 1991 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: 5274 Number of ARIN addresses announced to Internet: 1349383424 Equivalent to 80 /8s, 109 /16s and 245 /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: 276896 Total RIPE prefixes after maximum aggregation: 136489 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275798 Unique aggregates announced from the RIPE address blocks: 178195 RIPE Region origin ASes present in the Internet Routing Table: 28975 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12050 RIPE Region transit ASes present in the Internet Routing Table: 3995 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12610 Number of RIPE addresses announced to Internet: 732036352 Equivalent to 43 /8s, 161 /16s and 253 /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: 124740 Total LACNIC prefixes after maximum aggregation: 29891 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121101 Unique aggregates announced from the LACNIC address blocks: 49170 LACNIC Region origin ASes present in the Internet Routing Table: 11273 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2642 LACNIC Region transit ASes present in the Internet Routing Table: 2556 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9236 Number of LACNIC addresses announced to Internet: 171212288 Equivalent to 10 /8s, 52 /16s and 126 /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: 34862 Total AfriNIC prefixes after maximum aggregation: 6838 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 47535 Unique aggregates announced from the AfriNIC address blocks: 13984 AfriNIC Region origin ASes present in the Internet Routing Table: 1945 AfriNIC Prefixes per ASN: 24.44 AfriNIC Region origin ASes announcing only one prefix: 709 AfriNIC Region transit ASes present in the Internet Routing Table: 375 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1309 Number of AfriNIC addresses announced to Internet: 105107712 Equivalent to 6 /8s, 67 /16s and 209 /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 12383 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6137 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4563 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3282 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2915 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2887 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2172 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 13703 41056 5286 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3460 8770 857 COGENT-174, US 22773 3341 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3200 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 3059 1296 2224 AKAMAI-AS, US 4155 2886 219 1732 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 7580 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4024 3395 126 AKAMAI-ASN1, NL 9009 3837 364 2152 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2307 163 1677 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1579 1852 14 TE-AS TE-AS, EG 203020 1523 191 672 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 12320 3271 573 UNINET, MX 10620 3480 473 1036 Telmex Colombia S.A., CO 13999 2522 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1186 371 22 Telefonica del Peru S.A.A., PE 11664 1094 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1066 71 380 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1022 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 1734 660 28 RAYA-AS, EG 29571 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1409 1494 372 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1232 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 939 520 43 Vodafone-, EG 36914 572 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 541 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 13703 41056 5286 AMAZON-02, US 9808 12383 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12320 3271 573 UNINET, MX 12479 7580 1711 149 UNI2-AS, ES 7545 6137 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4563 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4024 3395 126 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 12383 12267 CHINAMOBILE-CN China Mobile Communications Grou 8151 12320 11747 UNINET, MX 12479 7580 7431 UNI2-AS, ES 7545 6137 5514 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4563 4538 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 20940 4024 3898 AKAMAI-ASN1, NL 7552 3909 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 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 395195 UNALLOCATED 8.38.115.0/24 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 23.147.224.0/24 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 /13:581 /14:1209 /15:2153 /16:13799 /17:8228 /18:13506 /19:24589 /20:44005 /21:51782 /22:112111 /23:103010 /24:617564 /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 6543 12320 UNINET, MX 12479 6538 7580 UNI2-AS, ES 11492 3619 4827 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2493 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13703 AMAZON-02, US 30036 2292 2633 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2196 3480 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) ---------------------------------------------- 1:2413 2:1527 3:863 4:10 5:4754 6:163 7:6 8:1546 9:1 11:172 12:1329 13:457 14:2576 15:368 16:286 17:376 18:899 20:561 21:4 22:188 23:7776 24:2725 25:2 27:2805 29:19 31:3351 32:35 33:1 34:80 35:263 36:4043 37:4563 38:9524 39:948 40:248 41:4272 42:2046 43:2693 44:381 45:18643 46:5086 47:336 49:1893 50:2048 51:591 52:1554 54:325 55:1098 56:11 57:274 58:2181 59:1293 60:1172 61:2882 62:2993 63:1786 64:5551 65:2167 66:4750 67:3107 68:1067 69:3909 70:1038 71:633 72:2852 74:2811 75:1507 76:610 77:2776 78:1918 79:1713 80:2206 81:2057 82:3199 83:1440 84:1907 85:3492 86:1095 87:2137 88:1346 89:4419 90:778 91:8417 92:2722 93:2950 94:4068 95:4427 96:1468 97:309 98:955 99:695 100:71 101:1218 102:3908 103:32285 104:5288 105:807 106:971 107:2642 108:1265 109:4177 110:2231 111:3432 112:2349 113:1845 114:1969 115:2257 116:2072 117:2638 118:2990 119:1912 120:2179 121:1334 122:2793 123:2246 124:1656 125:2876 126:91 128:1622 129:969 130:1306 131:2074 132:786 133:450 134:1602 135:351 136:1467 137:1316 138:2846 139:1595 140:1625 141:1520 142:1892 143:1955 144:1173 145:568 146:2186 147:2103 148:2727 149:2938 150:1274 151:2251 152:2097 153:590 154:7573 155:1852 156:3061 157:1939 158:1357 159:2525 160:3607 161:1899 162:3896 163:2256 164:1870 165:2432 166:1532 167:2016 168:3986 169:786 170:5173 171:999 172:4245 173:3407 174:919 175:1327 176:3736 177:4794 178:3938 179:2317 180:2587 181:4138 182:3550 183:2208 184:2080 185:21612 186:5267 187:4677 188:4272 189:4386 190:9553 191:1504 192:11339 193:9484 194:7787 195:5590 196:3294 197:3191 198:6238 199:8612 200:8226 201:6407 202:10390 203:10678 204:4666 205:3616 206:4522 207:3642 208:4289 209:5181 210:4696 211:2602 212:4558 213:3822 214:1021 215:48 216:6794 217:3256 218:1394 219:398 220:2149 221:1206 222:740 223:2731 End of report