IPv4 R&E Routing Table Report 21:10 GMT Sun 12 Apr, 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: 1040264 Prefixes after maximum aggregation (per Origin AS): 399279 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 513546 Number of IPv4 prefixes with a valid ROA: 630948 Number of IPv4 prefixes with an invalid ROA: 96 Number of IPv4 prefixes with no ROA: 409220 Total ASes present in the Internet Routing Table: 78294 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 67036 Origin ASes announcing only one prefix: 27393 Transit ASes present in the Internet Routing Table: 11258 Transit-only ASes present in the Internet Routing Table: 579 Paths with bogon ASNs present in the IPv4 Routing Table: 8 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: 959 Number of instances of unregistered ASNs: 989 Number of 32-bit ASNs allocated by the RIRs: 49317 Number of 32-bit ASNs visible in the Routing Table: 40347 Prefixes from 32-bit ASNs in the Routing Table: 227050 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 417 Number of addresses announced to Internet: 3103499264 Equivalent to 184 /8s, 251 /16s and 164 /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: 338667 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283036 Total APNIC prefixes after maximum aggregation: 82567 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269352 Unique aggregates announced from the APNIC address blocks: 107747 APNIC Region origin ASes present in the Internet Routing Table: 15165 APNIC Prefixes per ASN: 17.76 APNIC Region origin ASes announcing only one prefix: 4663 APNIC Region transit ASes present in the Internet Routing Table: 2045 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10731 Number of APNIC addresses announced to Internet: 748730112 Equivalent to 44 /8s, 160 /16s and 183 /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: 303743 Total ARIN prefixes after maximum aggregation: 135897 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303278 Unique aggregates announced from the ARIN address blocks: 146865 ARIN Region origin ASes present in the Internet Routing Table: 19427 ARIN Prefixes per ASN: 15.61 ARIN Region origin ASes announcing only one prefix: 7109 ARIN Region transit ASes present in the Internet Routing Table: 1978 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: 5550 Number of ARIN addresses announced to Internet: 1348167936 Equivalent to 80 /8s, 91 /16s and 105 /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, 393216-404380 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: 287831 Total RIPE prefixes after maximum aggregation: 142341 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290381 Unique aggregates announced from the RIPE address blocks: 188977 RIPE Region origin ASes present in the Internet Routing Table: 29385 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12176 RIPE Region transit ASes present in the Internet Routing Table: 4043 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: 13269 Number of RIPE addresses announced to Internet: 733124352 Equivalent to 43 /8s, 178 /16s and 151 /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: 127830 Total LACNIC prefixes after maximum aggregation: 30867 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122751 Unique aggregates announced from the LACNIC address blocks: 50283 LACNIC Region origin ASes present in the Internet Routing Table: 11390 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2711 LACNIC Region transit ASes present in the Internet Routing Table: 2612 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9415 Number of LACNIC addresses announced to Internet: 169856768 Equivalent to 10 /8s, 31 /16s and 207 /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: 36865 Total AfriNIC prefixes after maximum aggregation: 7000 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 54084 Unique aggregates announced from the AfriNIC address blocks: 19317 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 26.81 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103426048 Equivalent to 6 /8s, 42 /16s and 40 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13821 8729 119 CHINAMOBILE-CN China Mobile Communication 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4906 550 329 BBIL-AP BHARTI Airtel Ltd., IN 18403 4567 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4060 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3666 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3483 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3470 218 574 LCS-AS-AP LARUS Limited, HK 45899 3344 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 3012 859 517 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 14646 41276 5676 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4669 310 1035 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3722 1305 76 SHAW - Shaw Communications, CA 396982 3321 4859 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3208 8764 822 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2721 1221 2106 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2717 222 913 AS-COLOCROSSING - HostPapa, 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 7163 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3955 3389 111 AKAMAI-ASN1, NL 9009 3831 354 2247 M247, RO 12389 3145 2318 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2719 197 2001 CDNEXT, GB 34984 2450 365 572 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1637 249 809 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 12754 3300 620 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2447 506 345 Mega Cable, S.A. de C.V., MX 11830 1938 369 65 Instituto Costarricense de Electricidad y 11664 1436 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1246 371 22 INTEGRATEL PERU S.A.A., PE 26615 1065 2392 101 TIM SA, BR 22884 1055 71 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 24863 1294 389 16 LINKdotNET-AS, EG 36935 1242 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 545 57 58 WANANCHI-, KE 36914 525 82 3 KENET-AS, 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 14646 41276 5676 AMAZON-02 - Amazon.com, Inc., US 9808 13821 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 12754 3300 620 UNINET, MX 12479 7163 1711 149 UNI2-AS, ES 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4906 550 329 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4669 310 1035 CABLEONE - CABLE ONE, INC., US 18403 4567 347 25 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 13821 13702 CHINAMOBILE-CN China Mobile Communications Grou 8151 12754 12134 UNINET, MX 12479 7163 7014 UNI2-AS, ES 7545 5916 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4906 4577 BBIL-AP BHARTI Airtel Ltd., IN 18403 4567 4542 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4060 4031 VIETEL-AS-AP Viettel Group, VN 20940 3955 3844 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 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 - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:39 /11:95 /12:297 /13:585 /14:1192 /15:2109 /16:13611 /17:8304 /18:13342 /19:25487 /20:45792 /21:52362 /22:113678 /23:107258 /24:656082 /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 6944 12754 UNINET, MX 12479 6106 7163 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3530 4669 CABLEONE - CABLE ONE, INC., US 6327 3504 3722 SHAW - Shaw Communications, CA 22773 3055 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2626 14646 AMAZON-02 - Amazon.com, Inc., US 30036 2326 2674 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 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) ---------------------------------------------- 1:2496 2:1861 3:1002 4:5 5:5105 6:197 7:6 8:1490 9:39 11:172 12:1186 13:687 14:2684 15:458 16:176 17:423 18:917 20:602 21:4 22:188 23:8214 24:2774 25:2 27:2820 28:1 29:19 31:3476 32:36 34:87 35:283 36:4663 37:4458 38:10102 39:1281 40:421 41:4533 42:2176 43:3049 44:447 45:19744 46:4869 47:408 48:125 49:2229 50:2021 51:626 52:1307 54:278 55:1121 56:11 57:324 58:2344 59:1377 60:1174 61:3129 62:3122 63:1724 64:6314 65:2132 66:6084 67:3264 68:1496 69:4209 70:1055 71:621 72:3184 74:3025 75:1491 76:587 77:2929 78:1970 79:1795 80:2349 81:2219 82:4054 83:1450 84:2143 85:3794 86:1091 87:2349 88:1346 89:4710 90:782 91:8436 92:2823 93:3009 94:4360 95:4656 96:1456 97:315 98:943 99:808 100:68 101:1463 102:4483 103:32453 104:5362 105:818 106:912 107:2880 108:1230 109:4217 110:2280 111:4108 112:3159 113:1958 114:2266 115:2332 116:2160 117:3503 118:3001 119:2085 120:2699 121:1557 122:2993 123:2285 124:1658 125:2974 126:125 128:1622 129:963 130:1645 131:2478 132:834 133:475 134:1666 135:610 136:1612 137:1549 138:3303 139:1641 140:1765 141:1728 142:2528 143:2123 144:1735 145:646 146:2210 147:2205 148:2763 149:3102 150:1362 151:2801 152:2319 153:1390 154:10116 155:2285 156:4700 157:2301 158:1533 159:2858 160:3816 161:1958 162:4037 163:2499 164:2041 165:2636 166:1261 167:2296 168:4018 169:861 170:5560 171:1127 172:4583 173:3481 174:879 175:1363 176:3873 177:4849 178:4358 179:2300 180:3021 181:4522 182:4014 183:2839 184:2026 185:21828 186:5775 187:4944 188:4599 189:4503 190:9846 191:1565 192:11489 193:9617 194:7868 195:5823 196:3361 197:3230 198:6294 199:6067 200:8200 201:6383 202:10703 203:10664 204:4805 205:3760 206:4557 207:3989 208:4389 209:5452 210:4768 211:2682 212:5031 213:4134 214:1043 215:47 216:7290 217:3572 218:1701 219:414 220:2197 221:1310 222:938 223:3407 End of report