IPv4 R&E Routing Table Report 21:10 GMT Thu 14 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: 994907 Prefixes after maximum aggregation (per Origin AS): 385489 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 489265 Number of IPv4 prefixes with a valid ROA: 562104 Number of IPv4 prefixes with an invalid ROA: 148 Number of IPv4 prefixes with no ROA: 432579 Total ASes present in the Internet Routing Table: 77157 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66058 Origin ASes announcing only one prefix: 26992 Transit ASes present in the Internet Routing Table: 11099 Transit-only ASes present in the Internet Routing Table: 554 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 1089 Number of instances of unregistered ASNs: 1133 Number of 32-bit ASNs allocated by the RIRs: 47139 Number of 32-bit ASNs visible in the Routing Table: 38785 Prefixes from 32-bit ASNs in the Routing Table: 207326 Number of bogon 32-bit ASNs visible in the Routing Table: 100 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 424 Number of addresses announced to Internet: 3107713024 Equivalent to 185 /8s, 59 /16s and 240 /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: 324182 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264728 Total APNIC prefixes after maximum aggregation: 78450 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 255484 Unique aggregates announced from the APNIC address blocks: 105123 APNIC Region origin ASes present in the Internet Routing Table: 14760 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4514 APNIC Region transit ASes present in the Internet Routing Table: 1979 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: 10297 Number of APNIC addresses announced to Internet: 749516032 Equivalent to 44 /8s, 172 /16s and 181 /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: 292252 Total ARIN prefixes after maximum aggregation: 132736 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 293907 Unique aggregates announced from the ARIN address blocks: 141909 ARIN Region origin ASes present in the Internet Routing Table: 19255 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7040 ARIN Region transit ASes present in the Internet Routing Table: 1994 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5286 Number of ARIN addresses announced to Internet: 1349373696 Equivalent to 80 /8s, 109 /16s and 207 /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: 277684 Total RIPE prefixes after maximum aggregation: 136916 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276837 Unique aggregates announced from the RIPE address blocks: 178724 RIPE Region origin ASes present in the Internet Routing Table: 28996 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12064 RIPE Region transit ASes present in the Internet Routing Table: 3989 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12635 Number of RIPE addresses announced to Internet: 732167680 Equivalent to 43 /8s, 163 /16s and 254 /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: 124326 Total LACNIC prefixes after maximum aggregation: 29860 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120582 Unique aggregates announced from the LACNIC address blocks: 49117 LACNIC Region origin ASes present in the Internet Routing Table: 11280 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2562 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9250 Number of LACNIC addresses announced to Internet: 171173376 Equivalent to 10 /8s, 51 /16s and 230 /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: 34828 Total AfriNIC prefixes after maximum aggregation: 6810 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 47672 Unique aggregates announced from the AfriNIC address blocks: 14018 AfriNIC Region origin ASes present in the Internet Routing Table: 1955 AfriNIC Prefixes per ASN: 24.38 AfriNIC Region origin ASes announcing only one prefix: 712 AfriNIC Region transit ASes present in the Internet Routing Table: 380 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: 1317 Number of AfriNIC addresses announced to Internet: 105241088 Equivalent to 6 /8s, 69 /16s and 218 /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 12877 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6137 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4594 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3963 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3696 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3289 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2966 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2174 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 13816 41098 5328 AMAZON-02, US 11492 4753 315 752 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3645 1320 82 SHAW, CA 174 3455 8769 862 COGENT-174, US 22773 3345 3029 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3207 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 3046 1287 2211 AKAMAI-AS, US 4155 2934 229 1746 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 7554 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3857 365 2174 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2329 165 1693 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1572 1852 14 TE-AS TE-AS, EG 203020 1520 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 12329 3272 580 UNINET, MX 10620 3481 472 1050 Telmex Colombia S.A., CO 13999 2528 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1219 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1184 371 22 Telefonica del Peru S.A.A., PE 22884 1060 70 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 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 1770 660 28 RAYA-AS, EG 29571 1494 94 32 ORANGE-COTE-IVOIRE, CI 36992 1422 1501 378 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1242 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 991 523 47 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 574 82 3 KENET-AS, KE 15399 536 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 13816 41098 5328 AMAZON-02, US 9808 12877 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12329 3272 580 UNINET, MX 12479 7554 1711 149 UNI2-AS, ES 7545 6137 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4753 315 752 CABLEONE, US 18403 4594 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4030 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 12877 12762 CHINAMOBILE-CN China Mobile Communications Grou 8151 12329 11749 UNINET, MX 12479 7554 7405 UNI2-AS, ES 7545 6137 5520 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4594 4569 FPT-AS-AP FPT Telecom Company, VN 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 11492 4753 4001 CABLEONE, US 7552 3963 3936 VIETEL-AS-AP Viettel Group, VN 20940 4030 3903 AKAMAI-ASN1, NL 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 32182 UNALLOCATED 8.9.96.0/23 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 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 /15:2154 /16:13795 /17:8221 /18:13502 /19:24576 /20:43995 /21:51856 /22:112187 /23:103143 /24:619226 /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 6551 12329 UNINET, MX 12479 6514 7554 UNI2-AS, ES 11492 3564 4753 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3442 3645 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2498 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2358 13816 AMAZON-02, US 30036 2298 2640 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2201 3481 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) ---------------------------------------------- 1:2419 2:1528 3:880 4:10 5:4767 6:157 7:6 8:1546 9:3 11:172 12:1255 13:480 14:2581 15:373 16:286 17:379 18:899 20:563 21:4 22:188 23:7806 24:2704 25:2 27:2814 29:19 31:3359 32:29 33:1 34:80 35:264 36:4274 37:4577 38:9472 39:982 40:264 41:4277 42:2070 43:2693 44:385 45:18653 46:5133 47:338 49:1925 50:2051 51:591 52:1553 54:317 55:1108 56:11 57:275 58:2229 59:1284 60:1175 61:2882 62:3018 63:1783 64:5590 65:2140 66:4782 67:3104 68:1074 69:3911 70:1031 71:634 72:2844 74:2816 75:1509 76:603 77:2783 78:1913 79:1738 80:2210 81:2074 82:3265 83:1440 84:1923 85:3460 86:1120 87:2147 88:1353 89:4453 90:775 91:8417 92:2766 93:2969 94:4137 95:4463 96:1464 97:310 98:959 99:707 100:71 101:1214 102:3906 103:32266 104:5266 105:771 106:874 107:2644 108:1263 109:4185 110:2235 111:3579 112:2451 113:1847 114:1976 115:2226 116:2068 117:2692 118:3042 119:1895 120:2206 121:1337 122:2799 123:2239 124:1657 125:2882 126:90 128:1623 129:976 130:1302 131:2058 132:784 133:450 134:1621 135:355 136:1472 137:1326 138:2832 139:1598 140:1618 141:1534 142:1913 143:1978 144:1170 145:584 146:2178 147:2105 148:2704 149:2978 150:1275 151:2351 152:2108 153:593 154:7536 155:1879 156:3130 157:1949 158:1378 159:2530 160:3613 161:1908 162:3888 163:2265 164:1878 165:2467 166:1537 167:2038 168:3881 169:785 170:5219 171:1004 172:4243 173:3396 174:905 175:1323 176:3740 177:4698 178:3986 179:2313 180:2592 181:4169 182:3592 183:2266 184:2075 185:21634 186:5246 187:4649 188:4276 189:4335 190:9501 191:1522 192:11344 193:9481 194:7796 195:5623 196:3268 197:3209 198:6230 199:8636 200:8213 201:6362 202:10412 203:10669 204:4603 205:3653 206:4559 207:3643 208:4296 209:5196 210:4723 211:2646 212:4597 213:3835 214:1037 215:52 216:6816 217:3305 218:1432 219:398 220:2137 221:1210 222:743 223:2811 End of report