IPv4 R&E Routing Table Report 21:10 GMT Fri 09 Jan, 2026 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: 1024352 Prefixes after maximum aggregation (per Origin AS): 394465 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 506366 Number of IPv4 prefixes with a valid ROA: 610367 Number of IPv4 prefixes with an invalid ROA: 118 Number of IPv4 prefixes with no ROA: 413867 Total ASes present in the Internet Routing Table: 77718 Prefixes per ASN: 13.18 Origin-only ASes present in the Internet Routing Table: 66525 Origin ASes announcing only one prefix: 27130 Transit ASes present in the Internet Routing Table: 11193 Transit-only ASes present in the Internet Routing Table: 567 Paths with bogon ASNs present in the IPv4 Routing Table: 16 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1032 Number of instances of unregistered ASNs: 1072 Number of 32-bit ASNs allocated by the RIRs: 48328 Number of 32-bit ASNs visible in the Routing Table: 39594 Prefixes from 32-bit ASNs in the Routing Table: 219657 Number of bogon 32-bit ASNs visible in the Routing Table: 90 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 544 Number of addresses announced to Internet: 3103870464 Equivalent to 185 /8s, 1 /16s and 78 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 334204 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 277537 Total APNIC prefixes after maximum aggregation: 81230 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 264192 Unique aggregates announced from the APNIC address blocks: 106793 APNIC Region origin ASes present in the Internet Routing Table: 14971 APNIC Prefixes per ASN: 17.65 APNIC Region origin ASes announcing only one prefix: 4560 APNIC Region transit ASes present in the Internet Routing Table: 2014 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: 10533 Number of APNIC addresses announced to Internet: 752750848 Equivalent to 44 /8s, 222 /16s and 17 /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: 301079 Total ARIN prefixes after maximum aggregation: 135135 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301136 Unique aggregates announced from the ARIN address blocks: 145793 ARIN Region origin ASes present in the Internet Routing Table: 19387 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7067 ARIN Region transit ASes present in the Internet Routing Table: 1981 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 31 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5442 Number of ARIN addresses announced to Internet: 1343242752 Equivalent to 80 /8s, 16 /16s and 66 /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: 282662 Total RIPE prefixes after maximum aggregation: 139917 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283927 Unique aggregates announced from the RIPE address blocks: 184090 RIPE Region origin ASes present in the Internet Routing Table: 29117 RIPE Prefixes per ASN: 9.75 RIPE Region origin ASes announcing only one prefix: 12080 RIPE Region transit ASes present in the Internet Routing Table: 4040 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12912 Number of RIPE addresses announced to Internet: 733797376 Equivalent to 43 /8s, 188 /16s and 220 /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: 125664 Total LACNIC prefixes after maximum aggregation: 30565 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121447 Unique aggregates announced from the LACNIC address blocks: 49774 LACNIC Region origin ASes present in the Internet Routing Table: 11334 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2680 LACNIC Region transit ASes present in the Internet Routing Table: 2564 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9338 Number of LACNIC addresses announced to Internet: 170477824 Equivalent to 10 /8s, 41 /16s and 73 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36378 Total AfriNIC prefixes after maximum aggregation: 6927 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 53105 Unique aggregates announced from the AfriNIC address blocks: 19440 AfriNIC Region origin ASes present in the Internet Routing Table: 2007 AfriNIC Prefixes per ASN: 26.46 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 64 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1369 Number of AfriNIC addresses announced to Internet: 103264256 Equivalent to 6 /8s, 39 /16s and 176 /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 13405 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6029 833 576 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4670 543 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4321 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4059 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3406 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3325 1868 97 VNPT-AS-VN VNPT Corp, VN 17561 3174 199 623 LCS-AS-AP LARUS Limited, HK 24560 2953 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14165 38565 5444 AMAZON-02, US 22773 4777 3115 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4634 308 1032 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3695 1321 70 SHAW, CA 396982 3325 4868 493 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 174 3129 8767 844 COGENT-174, US 16625 2956 1277 2171 AKAMAI-AS, US 36352 2696 222 897 AS-COLOCROSSING, 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 7265 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 112 AKAMAI-ASN1, NL 9009 3920 366 2243 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2572 183 1869 CDNEXT, GB 34984 2424 372 576 TELLCOM-AS, TR 8452 1709 1852 14 TE-AS TE-AS, EG 203020 1622 243 799 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12704 3307 595 UNINET, MX 10620 3433 457 1107 Telmex Colombia S.A., CO 13999 2485 507 353 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1375 2433 265 Claro NXT Telecomunicacoes Ltda, BR 11664 1363 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 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 1982 638 33 RAYA-AS, EG 36992 1849 1534 341 ETISALAT-MISR, EG 24863 1262 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1110 524 47 Vodafone-, EG 37069 1099 1084 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 328608 568 52 163 Africa-on-Cloud-AS, ZA 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 14165 38565 5444 AMAZON-02, US 9808 13405 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12704 3307 595 UNINET, MX 12479 7265 1711 149 UNI2-AS, ES 7545 6029 833 576 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4777 3115 366 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4670 543 336 BBIL-AP BHARTI Airtel Ltd., IN 11492 4634 308 1032 CABLEONE, US 18403 4321 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13405 13285 CHINAMOBILE-CN China Mobile Communications Grou 8151 12704 12109 UNINET, MX 12479 7265 7116 UNI2-AS, ES 7545 6029 5453 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4777 4411 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4670 4334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4321 4297 FPT-AS-AP FPT Telecom Company, VN 7552 4059 4030 VIETEL-AS-AP Viettel Group, VN 20940 3943 3831 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 202485 UNALLOCATED 5.83.128.0/24 49581 FERDINANDZINK, DE 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 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 /10:40 /11:93 /12:302 /13:581 /14:1202 /15:2095 /16:13675 /17:8238 /18:13522 /19:24859 /20:44845 /21:52081 /22:113294 /23:105975 /24:643519 /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 6879 12704 UNINET, MX 12479 6196 7265 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4634 CABLEONE, US 6327 3478 3695 SHAW, CA 22773 3048 4777 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2499 14165 AMAZON-02, US 30036 2307 2648 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3433 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) ---------------------------------------------- 1:2457 2:1525 3:990 4:9 5:4989 6:187 7:6 8:1506 9:15 11:172 12:1234 13:625 14:2634 15:418 16:275 17:389 18:917 20:594 21:4 22:188 23:8181 24:2671 25:2 27:2825 29:19 31:3399 32:31 34:81 35:288 36:4614 37:4492 38:9901 39:1237 40:437 41:4510 42:1916 43:2928 44:412 45:19630 46:4996 47:395 49:2158 50:2057 51:598 52:1257 54:233 55:1118 56:11 57:313 58:2294 59:1337 60:1171 61:3061 62:3102 63:1774 64:6127 65:2140 66:6008 67:3269 68:1499 69:4230 70:1022 71:625 72:3068 74:2974 75:1520 76:599 77:2757 78:1914 79:1785 80:2294 81:2083 82:3981 83:1478 84:2034 85:3676 86:1099 87:2214 88:1353 89:4609 90:826 91:8423 92:2836 93:3018 94:4228 95:4533 96:1457 97:312 98:958 99:787 100:69 101:1305 102:4351 103:32345 104:5460 105:793 106:907 107:2814 108:1216 109:4220 110:2301 111:4017 112:2963 113:1928 114:2096 115:2306 116:2152 117:3255 118:2974 119:2080 120:2436 121:1521 122:2957 123:2305 124:1606 125:2947 126:125 128:1608 129:979 130:1563 131:2268 132:769 133:461 134:1635 135:536 136:1611 137:1423 138:2978 139:1608 140:1776 141:1563 142:2444 143:2129 144:1419 145:627 146:2197 147:2168 148:2784 149:2918 150:1315 151:2589 152:2254 153:916 154:9630 155:2316 156:4617 157:2259 158:1488 159:2739 160:3746 161:1991 162:3996 163:2326 164:1968 165:2647 166:1301 167:2194 168:3910 169:814 170:5420 171:1117 172:4581 173:3423 174:894 175:1344 176:3773 177:4704 178:4238 179:2297 180:2826 181:4337 182:3885 183:2701 184:2040 185:21731 186:5502 187:4780 188:4593 189:4476 190:9646 191:1508 192:11453 193:9505 194:7833 195:5680 196:3263 197:3190 198:6238 199:6109 200:8143 201:6384 202:10604 203:10616 204:4698 205:3754 206:4406 207:3976 208:4378 209:5511 210:4784 211:2684 212:4920 213:4039 214:1065 215:54 216:7152 217:3459 218:1618 219:412 220:2187 221:1306 222:776 223:3258 End of report