IPv4 R&E Routing Table Report 21:10 GMT Wed 04 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: 1034221 Prefixes after maximum aggregation (per Origin AS): 397375 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510279 Number of IPv4 prefixes with a valid ROA: 621919 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 412195 Total ASes present in the Internet Routing Table: 78060 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66784 Origin ASes announcing only one prefix: 27328 Transit ASes present in the Internet Routing Table: 11276 Transit-only ASes present in the Internet Routing Table: 583 Paths with bogon ASNs present in the IPv4 Routing Table: 11 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: 1081 Number of instances of unregistered ASNs: 1113 Number of 32-bit ASNs allocated by the RIRs: 48930 Number of 32-bit ASNs visible in the Routing Table: 40020 Prefixes from 32-bit ASNs in the Routing Table: 222552 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 435 Number of addresses announced to Internet: 3113372160 Equivalent to 185 /8s, 146 /16s and 74 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 336291 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280687 Total APNIC prefixes after maximum aggregation: 82016 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 267813 Unique aggregates announced from the APNIC address blocks: 107365 APNIC Region origin ASes present in the Internet Routing Table: 15094 APNIC Prefixes per ASN: 17.74 APNIC Region origin ASes announcing only one prefix: 4640 APNIC Region transit ASes present in the Internet Routing Table: 2037 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: 10651 Number of APNIC addresses announced to Internet: 751937280 Equivalent to 44 /8s, 209 /16s and 167 /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: 304180 Total ARIN prefixes after maximum aggregation: 136647 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302935 Unique aggregates announced from the ARIN address blocks: 147239 ARIN Region origin ASes present in the Internet Routing Table: 19419 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7106 ARIN Region transit ASes present in the Internet Routing Table: 1987 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: 5505 Number of ARIN addresses announced to Internet: 1352679424 Equivalent to 80 /8s, 160 /16s and 64 /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: 285047 Total RIPE prefixes after maximum aggregation: 140720 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 287677 Unique aggregates announced from the RIPE address blocks: 186366 RIPE Region origin ASes present in the Internet Routing Table: 29272 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12159 RIPE Region transit ASes present in the Internet Routing Table: 4066 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: 13115 Number of RIPE addresses announced to Internet: 733296896 Equivalent to 43 /8s, 181 /16s and 57 /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: 126377 Total LACNIC prefixes after maximum aggregation: 30355 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122096 Unique aggregates announced from the LACNIC address blocks: 49584 LACNIC Region origin ASes present in the Internet Routing Table: 11355 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2587 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: 170924800 Equivalent to 10 /8s, 48 /16s and 27 /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: 36849 Total AfriNIC prefixes after maximum aggregation: 6941 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53264 Unique aggregates announced from the AfriNIC address blocks: 19338 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.42 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 392 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: 1381 Number of AfriNIC addresses announced to Internet: 103289600 Equivalent to 6 /8s, 40 /16s and 19 /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 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5993 831 543 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4815 547 332 BBIL-AP BHARTI Airtel Ltd., IN 18403 4557 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4023 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3661 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3464 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3320 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 2985 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2788 175 550 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 14441 41237 5571 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3119 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4639 308 1018 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3707 1321 75 SHAW - Shaw Communications, CA 174 3395 8764 850 COGENT-174 - Cogent Communications, LLC, 396982 3288 4856 484 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2854 1252 2158 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2702 222 894 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 7231 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3944 3393 114 AKAMAI-ASN1, NL 9009 3825 355 2250 M247, RO 12389 3145 2318 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2658 192 1949 CDNEXT, GB 34984 2463 366 573 TELLCOM-AS, TR 8452 1699 1852 16 TE-AS TE-AS, EG 203020 1609 243 786 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 12763 3303 596 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2452 505 348 Mega Cable, S.A. de C.V., MX 11830 1954 369 65 Instituto Costarricense de Electricidad y 11664 1444 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1377 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1247 371 22 INTEGRATEL PERU S.A.A., PE 26615 1059 2475 94 TIM SA, BR 22884 1058 67 360 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 2044 648 34 RAYA-AS, EG 36992 1847 1532 340 ETISALAT-MISR, EG 24863 1285 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 561 51 166 Africa-on-Cloud-AS, ZA 15399 550 57 59 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 14441 41237 5571 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12763 3303 596 UNINET, MX 12479 7231 1711 149 UNI2-AS, ES 7545 5993 831 543 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4815 547 332 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 3119 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4639 308 1018 CABLEONE - CABLE ONE, INC., US 18403 4557 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 13726 13606 CHINAMOBILE-CN China Mobile Communications Grou 8151 12763 12167 UNINET, MX 12479 7231 7082 UNI2-AS, ES 7545 5993 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4557 4533 FPT-AS-AP FPT Telecom Company, VN 9498 4815 4483 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4023 3994 VIETEL-AS-AP Viettel Group, VN 20940 3944 3830 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 /12:299 /13:586 /14:1204 /15:2111 /16:13680 /17:8305 /18:13565 /19:25440 /20:45370 /21:52374 /22:113612 /23:107113 /24:650396 /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 6931 12763 UNINET, MX 12479 6163 7231 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3500 4639 CABLEONE - CABLE ONE, INC., US 6327 3488 3707 SHAW - Shaw Communications, CA 22773 3050 4785 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2593 14441 AMAZON-02 - Amazon.com, Inc., US 30036 2314 2661 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) ---------------------------------------------- 1:2503 2:1617 3:980 4:9 5:5154 6:194 7:6 8:1501 9:28 11:172 12:1195 13:652 14:2653 15:458 16:177 17:398 18:918 20:601 21:4 22:188 23:8217 24:2653 25:2 27:2836 29:19 31:3403 32:30 34:81 35:290 36:4635 37:4451 38:10057 39:1267 40:423 41:4541 42:2051 43:2987 44:442 45:19868 46:4905 47:401 48:86 49:2196 50:2064 51:600 52:1291 54:278 55:1122 56:11 57:320 58:2332 59:1351 60:1175 61:3113 62:3124 63:1761 64:6207 65:2116 66:6029 67:3258 68:1500 69:4241 70:1039 71:621 72:3101 74:2976 75:1497 76:590 77:2842 78:1909 79:1780 80:2333 81:2219 82:4008 83:1452 84:2048 85:3821 86:1106 87:2257 88:1348 89:4678 90:810 91:8426 92:2853 93:3012 94:4310 95:4583 96:1450 97:313 98:950 99:800 100:67 101:1486 102:4467 103:32432 104:5493 105:792 106:923 107:2844 108:1190 109:4228 110:2286 111:4091 112:3147 113:1982 114:2176 115:2322 116:2162 117:3439 118:3018 119:2072 120:2684 121:1521 122:2971 123:2263 124:1632 125:2969 126:125 128:1691 129:961 130:1603 131:2431 132:790 133:463 134:1645 135:569 136:1598 137:1554 138:3126 139:1639 140:1791 141:1583 142:2479 143:2132 144:1724 145:638 146:2201 147:2166 148:2790 149:3007 150:1327 151:2668 152:2286 153:1021 154:9647 155:2297 156:4392 157:2269 158:1489 159:2766 160:3850 161:1957 162:4007 163:2393 164:2031 165:2621 166:1299 167:2244 168:3953 169:892 170:5527 171:1112 172:4566 173:3440 174:884 175:1351 176:3809 177:4700 178:4332 179:2279 180:3015 181:4437 182:3982 183:2844 184:2015 185:21767 186:5650 187:4889 188:4555 189:4500 190:9729 191:1554 192:11423 193:9582 194:7834 195:5701 196:3321 197:3218 198:6283 199:6108 200:8163 201:6352 202:10666 203:10634 204:4770 205:3771 206:4514 207:4006 208:4382 209:5425 210:4786 211:2682 212:4986 213:4093 214:1051 215:45 216:7233 217:3530 218:1681 219:418 220:2186 221:1316 222:938 223:3315 End of report