IPv4 R&E Routing Table Report 21:10 GMT Sat 09 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: 993911 Prefixes after maximum aggregation (per Origin AS): 384925 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488817 Number of IPv4 prefixes with a valid ROA: 548701 Number of IPv4 prefixes with an invalid ROA: 488 Number of IPv4 prefixes with no ROA: 444722 Total ASes present in the Internet Routing Table: 77141 Prefixes per ASN: 12.88 Origin-only ASes present in the Internet Routing Table: 66023 Origin ASes announcing only one prefix: 26971 Transit ASes present in the Internet Routing Table: 11118 Transit-only ASes present in the Internet Routing Table: 560 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: 84 Max AS path prepend of ASN ( 37447) 47 Prefixes from unregistered ASNs in the Routing Table: 1074 Number of instances of unregistered ASNs: 1118 Number of 32-bit ASNs allocated by the RIRs: 47097 Number of 32-bit ASNs visible in the Routing Table: 38762 Prefixes from 32-bit ASNs in the Routing Table: 206814 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: 433 Number of addresses announced to Internet: 3107609344 Equivalent to 185 /8s, 58 /16s and 91 /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: 323907 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263979 Total APNIC prefixes after maximum aggregation: 78265 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254845 Unique aggregates announced from the APNIC address blocks: 104879 APNIC Region origin ASes present in the Internet Routing Table: 14756 APNIC Prefixes per ASN: 17.27 APNIC Region origin ASes announcing only one prefix: 4507 APNIC Region transit ASes present in the Internet Routing Table: 1988 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10293 Number of APNIC addresses announced to Internet: 749473280 Equivalent to 44 /8s, 172 /16s and 14 /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: 292483 Total ARIN prefixes after maximum aggregation: 132585 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 294064 Unique aggregates announced from the ARIN address blocks: 141906 ARIN Region origin ASes present in the Internet Routing Table: 19267 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1996 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5287 Number of ARIN addresses announced to Internet: 1349508864 Equivalent to 80 /8s, 111 /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: 277330 Total RIPE prefixes after maximum aggregation: 136691 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276323 Unique aggregates announced from the RIPE address blocks: 178533 RIPE Region origin ASes present in the Internet Routing Table: 28987 RIPE Prefixes per ASN: 9.53 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3994 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: 12628 Number of RIPE addresses announced to Internet: 732014336 Equivalent to 43 /8s, 161 /16s and 167 /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: 124283 Total LACNIC prefixes after maximum aggregation: 29890 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120614 Unique aggregates announced from the LACNIC address blocks: 49095 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2565 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: 9246 Number of LACNIC addresses announced to Internet: 171166720 Equivalent to 10 /8s, 51 /16s and 204 /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: 34762 Total AfriNIC prefixes after maximum aggregation: 6789 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 47631 Unique aggregates announced from the AfriNIC address blocks: 14026 AfriNIC Region origin ASes present in the Internet Routing Table: 1946 AfriNIC Prefixes per ASN: 24.48 AfriNIC Region origin ASes announcing only one prefix: 710 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 84 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1308 Number of AfriNIC addresses announced to Internet: 105203712 Equivalent to 6 /8s, 69 /16s and 72 /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 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6140 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4571 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3286 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2964 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2918 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2173 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 13783 41095 5312 AMAZON-02, US 11492 4783 317 680 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3642 1320 82 SHAW, CA 174 3606 8769 852 COGENT-174, US 22773 3338 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3204 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 3051 1291 2216 AKAMAI-AS, US 4155 2908 227 1731 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 7568 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4034 3395 127 AKAMAI-ASN1, NL 9009 3858 366 2175 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2326 164 1691 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1581 1852 14 TE-AS TE-AS, EG 203020 1521 191 669 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 12326 3272 577 UNINET, MX 10620 3475 472 1052 Telmex Colombia S.A., CO 13999 2529 511 354 Mega Cable, S.A. de C.V., MX 11830 1986 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, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 11664 1142 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1068 71 373 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 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 1488 94 32 ORANGE-COTE-IVOIRE, CI 36992 1416 1494 373 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 562 82 3 KENET-AS, KE 15399 535 57 58 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 13783 41095 5312 AMAZON-02, US 9808 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12326 3272 577 UNINET, MX 12479 7568 1711 153 UNI2-AS, ES 7545 6140 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4783 317 680 CABLEONE, US 18403 4571 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4034 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 12613 12498 CHINAMOBILE-CN China Mobile Communications Grou 8151 12326 11749 UNINET, MX 12479 7568 7415 UNI2-AS, ES 7545 6140 5516 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4571 4546 FPT-AS-AP FPT Telecom Company, VN 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 11492 4783 4103 CABLEONE, US 7552 3942 3915 VIETEL-AS-AP Viettel Group, VN 20940 4034 3907 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 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 /16:13806 /17:8229 /18:13510 /19:24569 /20:43999 /21:51837 /22:112228 /23:103150 /24:618178 /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 6545 12326 UNINET, MX 12479 6529 7568 UNI2-AS, ES 11492 3593 4783 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3439 3642 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2490 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 13783 AMAZON-02, US 30036 2297 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3475 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) ---------------------------------------------- 1:2423 2:1530 3:875 4:10 5:4755 6:157 7:6 8:1543 9:2 11:172 12:1336 13:471 14:2580 15:370 16:286 17:379 18:898 20:563 21:4 22:188 23:7804 24:2702 25:2 27:2809 29:19 31:3368 32:35 33:1 34:80 35:263 36:4209 37:4575 38:9521 39:965 40:256 41:4281 42:2051 43:2692 44:384 45:18618 46:5116 47:338 49:1882 50:2050 51:591 52:1553 54:324 55:1109 56:11 57:274 58:2187 59:1286 60:1173 61:2880 62:3012 63:1782 64:5565 65:2143 66:4762 67:3105 68:1069 69:3908 70:1031 71:634 72:2853 74:2821 75:1509 76:606 77:2791 78:1920 79:1734 80:2206 81:2077 82:3230 83:1439 84:1925 85:3468 86:1111 87:2147 88:1346 89:4437 90:774 91:8415 92:2747 93:2961 94:4101 95:4452 96:1470 97:310 98:954 99:702 100:71 101:1216 102:3915 103:32269 104:5260 105:764 106:875 107:2654 108:1262 109:4194 110:2233 111:3514 112:2417 113:1848 114:1975 115:2229 116:2071 117:2682 118:2974 119:1889 120:2197 121:1339 122:2797 123:2247 124:1656 125:2880 126:91 128:1615 129:972 130:1314 131:2057 132:783 133:450 134:1594 135:355 136:1471 137:1321 138:2826 139:1595 140:1619 141:1530 142:1923 143:1949 144:1188 145:575 146:2179 147:2103 148:2703 149:2947 150:1278 151:2304 152:2100 153:594 154:7613 155:1869 156:3072 157:1941 158:1374 159:2528 160:3601 161:1902 162:3885 163:2264 164:1874 165:2462 166:1535 167:2029 168:3872 169:784 170:5187 171:995 172:4243 173:3399 174:910 175:1323 176:3729 177:4684 178:3970 179:2315 180:2589 181:4147 182:3592 183:2240 184:2079 185:21623 186:5205 187:4646 188:4275 189:4345 190:9501 191:1499 192:11359 193:9474 194:7785 195:5599 196:3265 197:3166 198:6234 199:8610 200:8201 201:6398 202:10391 203:10672 204:4614 205:3687 206:4563 207:3645 208:4298 209:5159 210:4711 211:2644 212:4586 213:3835 214:1026 215:50 216:6793 217:3279 218:1421 219:397 220:2147 221:1210 222:742 223:2778 End of report