IPv4 R&E Routing Table Report 21:10 GMT Thu 12 Mar, 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: 1035555 Prefixes after maximum aggregation (per Origin AS): 398201 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510988 Number of IPv4 prefixes with a valid ROA: 623422 Number of IPv4 prefixes with an invalid ROA: 103 Number of IPv4 prefixes with no ROA: 412030 Total ASes present in the Internet Routing Table: 78103 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66865 Origin ASes announcing only one prefix: 27289 Transit ASes present in the Internet Routing Table: 11238 Transit-only ASes present in the Internet Routing Table: 586 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1076 Number of instances of unregistered ASNs: 1106 Number of 32-bit ASNs allocated by the RIRs: 48932 Number of 32-bit ASNs visible in the Routing Table: 40091 Prefixes from 32-bit ASNs in the Routing Table: 223846 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3108991744 Equivalent to 185 /8s, 79 /16s and 115 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 337297 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280870 Total APNIC prefixes after maximum aggregation: 81871 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268048 Unique aggregates announced from the APNIC address blocks: 107214 APNIC Region origin ASes present in the Internet Routing Table: 15130 APNIC Prefixes per ASN: 17.72 APNIC Region origin ASes announcing only one prefix: 4645 APNIC Region transit ASes present in the Internet Routing Table: 2039 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10683 Number of APNIC addresses announced to Internet: 751874560 Equivalent to 44 /8s, 208 /16s and 178 /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: 304296 Total ARIN prefixes after maximum aggregation: 137207 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302995 Unique aggregates announced from the ARIN address blocks: 146942 ARIN Region origin ASes present in the Internet Routing Table: 19395 ARIN Prefixes per ASN: 15.62 ARIN Region origin ASes announcing only one prefix: 7075 ARIN Region transit ASes present in the Internet Routing Table: 1984 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: 5507 Number of ARIN addresses announced to Internet: 1349777920 Equivalent to 80 /8s, 115 /16s and 250 /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: 285337 Total RIPE prefixes after maximum aggregation: 140912 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287981 Unique aggregates announced from the RIPE address blocks: 187080 RIPE Region origin ASes present in the Internet Routing Table: 29294 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12149 RIPE Region transit ASes present in the Internet Routing Table: 4047 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13153 Number of RIPE addresses announced to Internet: 733480704 Equivalent to 43 /8s, 184 /16s and 7 /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: 127166 Total LACNIC prefixes after maximum aggregation: 30574 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122884 Unique aggregates announced from the LACNIC address blocks: 50021 LACNIC Region origin ASes present in the Internet Routing Table: 11356 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2684 LACNIC Region transit ASes present in the Internet Routing Table: 2574 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: 9368 Number of LACNIC addresses announced to Internet: 170415104 Equivalent to 10 /8s, 40 /16s and 84 /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: 36810 Total AfriNIC prefixes after maximum aggregation: 6945 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53224 Unique aggregates announced from the AfriNIC address blocks: 19357 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.41 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 391 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: 1380 Number of AfriNIC addresses announced to Internet: 103242752 Equivalent to 6 /8s, 39 /16s and 92 /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 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4845 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4595 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4021 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3672 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3464 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3003 865 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2817 177 550 LCS-AS-AP LARUS Limited, HK 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 14460 41234 5554 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4635 308 1021 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3707 1321 75 SHAW - Shaw Communications, CA 396982 3290 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3189 8764 846 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2838 1246 2153 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 221 898 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 7206 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3946 3393 114 AKAMAI-ASN1, NL 9009 3828 355 2247 M247, RO 12389 3146 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2668 193 1955 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1688 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 787 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 12795 3302 594 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2454 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2475 94 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 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 ETISALAT-MISR, EG 24863 1286 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1229 521 44 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 559 82 3 KENET-AS, KE 15399 542 57 55 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 14460 41234 5554 AMAZON-02 - Amazon.com, Inc., US 9808 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12795 3302 594 UNINET, MX 12479 7206 1711 149 UNI2-AS, ES 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4845 548 320 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4635 308 1021 CABLEONE - CABLE ONE, INC., US 18403 4595 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 13730 13610 CHINAMOBILE-CN China Mobile Communications Grou 8151 12795 12201 UNINET, MX 12479 7206 7057 UNI2-AS, ES 7545 5974 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4595 4570 FPT-AS-AP FPT Telecom Company, VN 9498 4845 4525 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4021 3992 VIETEL-AS-AP Viettel Group, VN 20940 3946 3832 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 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 55002 DEFENSE-NET - F5, Inc., 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 397665 UNALLOCATED 12.24.28.0/24 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 /10:40 /11:95 /12:298 /13:584 /14:1196 /15:2103 /16:13640 /17:8293 /18:13390 /19:25417 /20:45670 /21:52354 /22:113759 /23:107279 /24:651406 /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 6958 12795 UNINET, MX 12479 6143 7206 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3504 4635 CABLEONE - CABLE ONE, INC., US 6327 3488 3707 SHAW - Shaw Communications, CA 22773 3048 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2584 14460 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2486 2:1620 3:996 4:5 5:5110 6:196 7:6 8:1499 9:29 11:172 12:1194 13:641 14:2662 15:460 16:167 17:395 18:917 20:603 21:4 22:188 23:8190 24:2740 25:2 27:2829 29:19 31:3413 32:30 34:87 35:293 36:4617 37:4459 38:9886 39:1267 40:270 41:4554 42:2098 43:2989 44:445 45:19882 46:4915 47:407 48:89 49:2186 50:2071 51:602 52:1308 54:279 55:1058 56:11 57:321 58:2342 59:1353 60:1174 61:3110 62:3122 63:1762 64:6251 65:2114 66:6013 67:3261 68:1498 69:4212 70:1039 71:621 72:3109 74:2990 75:1496 76:592 77:2837 78:1911 79:1793 80:2337 81:2214 82:4026 83:1446 84:2050 85:3817 86:1102 87:2278 88:1353 89:4698 90:797 91:8442 92:2837 93:3014 94:4305 95:4631 96:1440 97:313 98:947 99:803 100:68 101:1443 102:4477 103:32480 104:5477 105:791 106:924 107:2859 108:1211 109:4225 110:2288 111:4064 112:3150 113:1979 114:2179 115:2329 116:2162 117:3431 118:3009 119:2050 120:2686 121:1520 122:2983 123:2263 124:1642 125:2971 126:125 128:1697 129:945 130:1612 131:2462 132:800 133:463 134:1646 135:586 136:1599 137:1560 138:3155 139:1645 140:1789 141:1589 142:2540 143:2145 144:1731 145:628 146:2198 147:2162 148:2755 149:3059 150:1331 151:2687 152:2289 153:1020 154:9525 155:2313 156:4381 157:2276 158:1498 159:2770 160:3832 161:1945 162:4026 163:2398 164:2034 165:2626 166:1300 167:2253 168:3997 169:894 170:5559 171:1105 172:4615 173:3457 174:884 175:1354 176:3827 177:4901 178:4329 179:2299 180:3007 181:4448 182:4015 183:2833 184:2018 185:21782 186:5712 187:5001 188:4553 189:4509 190:9735 191:1587 192:11486 193:9598 194:7846 195:5720 196:3321 197:3234 198:6267 199:6112 200:8209 201:6402 202:10709 203:10646 204:4752 205:3778 206:4533 207:4027 208:4382 209:5438 210:4785 211:2683 212:4999 213:4100 214:1048 215:46 216:7268 217:3554 218:1679 219:418 220:2197 221:1316 222:937 223:3322 End of report