IPv4 R&E Routing Table Report 21:10 GMT Sun 10 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: 993980 Prefixes after maximum aggregation (per Origin AS): 384974 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488808 Number of IPv4 prefixes with a valid ROA: 560863 Number of IPv4 prefixes with an invalid ROA: 151 Number of IPv4 prefixes with no ROA: 432966 Total ASes present in the Internet Routing Table: 77126 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66013 Origin ASes announcing only one prefix: 26974 Transit ASes present in the Internet Routing Table: 11113 Transit-only ASes present in the Internet Routing Table: 557 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: 47114 Number of 32-bit ASNs visible in the Routing Table: 38743 Prefixes from 32-bit ASNs in the Routing Table: 206763 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: 3107655680 Equivalent to 185 /8s, 59 /16s and 16 /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: 323988 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263898 Total APNIC prefixes after maximum aggregation: 78250 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254783 Unique aggregates announced from the APNIC address blocks: 104818 APNIC Region origin ASes present in the Internet Routing Table: 14734 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 4497 APNIC Region transit ASes present in the Internet Routing Table: 1984 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: 10270 Number of APNIC addresses announced to Internet: 749467392 Equivalent to 44 /8s, 171 /16s and 247 /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: 292540 Total ARIN prefixes after maximum aggregation: 132623 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 294075 Unique aggregates announced from the ARIN address blocks: 141891 ARIN Region origin ASes present in the Internet Routing Table: 19262 ARIN Prefixes per ASN: 15.27 ARIN Region origin ASes announcing only one prefix: 7037 ARIN Region transit ASes present in the Internet Routing Table: 1995 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: 5284 Number of ARIN addresses announced to Internet: 1349508096 Equivalent to 80 /8s, 111 /16s and 220 /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: 277375 Total RIPE prefixes after maximum aggregation: 136713 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276404 Unique aggregates announced from the RIPE address blocks: 178586 RIPE Region origin ASes present in the Internet Routing Table: 29000 RIPE Prefixes per ASN: 9.53 RIPE Region origin ASes announcing only one prefix: 12070 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: 12636 Number of RIPE addresses announced to Internet: 732025856 Equivalent to 43 /8s, 161 /16s and 212 /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: 124276 Total LACNIC prefixes after maximum aggregation: 29887 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120593 Unique aggregates announced from the LACNIC address blocks: 49094 LACNIC Region origin ASes present in the Internet Routing Table: 11274 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2659 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: 9242 Number of LACNIC addresses announced to Internet: 171184128 Equivalent to 10 /8s, 52 /16s and 16 /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: 34817 Total AfriNIC prefixes after maximum aggregation: 6796 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 47691 Unique aggregates announced from the AfriNIC address blocks: 14041 AfriNIC Region origin ASes present in the Internet Routing Table: 1950 AfriNIC Prefixes per ASN: 24.46 AfriNIC Region origin ASes announcing only one prefix: 711 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: 1311 Number of AfriNIC addresses announced to Internet: 105227776 Equivalent to 6 /8s, 69 /16s and 166 /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 4569 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 2965 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 13793 41096 5317 AMAZON-02, US 11492 4783 317 680 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3641 1320 82 SHAW, CA 174 3607 8769 853 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 2902 227 1728 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 7566 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 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2325 164 1690 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 1181 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 1418 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1239 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 556 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 13793 41096 5317 AMAZON-02, US 9808 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12326 3272 577 UNINET, MX 12479 7566 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 4569 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 7566 7413 UNI2-AS, ES 7545 6140 5516 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4569 4544 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 /18:13512 /19:24577 /20:44007 /21:51844 /22:112228 /23:103135 /24:618237 /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 6528 7566 UNI2-AS, ES 11492 3593 4783 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3438 3641 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2490 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13793 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) ---------------------------------------------- 1:2419 2:1532 3:875 4:10 5:4757 6:157 7:6 8:1546 9:2 11:172 12:1334 13:471 14:2580 15:370 16:286 17:379 18:899 20:563 21:4 22:188 23:7803 24:2703 25:2 27:2814 29:19 31:3371 32:35 33:1 34:80 35:263 36:4210 37:4573 38:9525 39:965 40:256 41:4281 42:2048 43:2690 44:384 45:18611 46:5128 47:338 49:1881 50:2051 51:591 52:1552 54:324 55:1109 56:11 57:274 58:2187 59:1286 60:1173 61:2880 62:3015 63:1782 64:5579 65:2144 66:4761 67:3104 68:1069 69:3908 70:1031 71:634 72:2852 74:2821 75:1509 76:606 77:2790 78:1919 79:1733 80:2211 81:2076 82:3232 83:1439 84:1924 85:3466 86:1110 87:2146 88:1347 89:4438 90:774 91:8421 92:2753 93:2961 94:4107 95:4452 96:1471 97:310 98:954 99:702 100:71 101:1216 102:3922 103:32243 104:5266 105:764 106:875 107:2654 108:1249 109:4195 110:2233 111:3473 112:2417 113:1848 114:1975 115:2230 116:2071 117:2681 118:2973 119:1888 120:2199 121:1338 122:2797 123:2250 124:1655 125:2880 126:91 128:1614 129:972 130:1312 131:2054 132:781 133:450 134:1599 135:355 136:1471 137:1322 138:2820 139:1594 140:1620 141:1530 142:1922 143:1950 144:1188 145:575 146:2180 147:2103 148:2705 149:2947 150:1278 151:2312 152:2100 153:594 154:7619 155:1876 156:3070 157:1942 158:1374 159:2527 160:3594 161:1904 162:3883 163:2260 164:1875 165:2463 166:1533 167:2032 168:3875 169:784 170:5200 171:998 172:4242 173:3403 174:910 175:1322 176:3732 177:4689 178:3980 179:2313 180:2589 181:4143 182:3592 183:2244 184:2079 185:21618 186:5195 187:4648 188:4275 189:4348 190:9496 191:1519 192:11355 193:9479 194:7779 195:5601 196:3284 197:3169 198:6237 199:8606 200:8202 201:6397 202:10400 203:10671 204:4617 205:3674 206:4560 207:3642 208:4298 209:5163 210:4713 211:2643 212:4585 213:3838 214:1025 215:50 216:6807 217:3281 218:1421 219:397 220:2144 221:1210 222:742 223:2779 End of report