IPv4 R&E Routing Table Report 21:10 GMT Wed 28 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: 1029377 Prefixes after maximum aggregation (per Origin AS): 395627 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507639 Number of IPv4 prefixes with a valid ROA: 614849 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 414421 Total ASes present in the Internet Routing Table: 77836 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66627 Origin ASes announcing only one prefix: 27219 Transit ASes present in the Internet Routing Table: 11209 Transit-only ASes present in the Internet Routing Table: 570 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1035 Number of instances of unregistered ASNs: 1077 Number of 32-bit ASNs allocated by the RIRs: 48515 Number of 32-bit ASNs visible in the Routing Table: 39729 Prefixes from 32-bit ASNs in the Routing Table: 220694 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 461 Number of addresses announced to Internet: 3106181888 Equivalent to 185 /8s, 36 /16s and 147 /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: 334823 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280341 Total APNIC prefixes after maximum aggregation: 82026 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266580 Unique aggregates announced from the APNIC address blocks: 107175 APNIC Region origin ASes present in the Internet Routing Table: 15025 APNIC Prefixes per ASN: 17.74 APNIC Region origin ASes announcing only one prefix: 4604 APNIC Region transit ASes present in the Internet Routing Table: 2010 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 43 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10587 Number of APNIC addresses announced to Internet: 753660160 Equivalent to 44 /8s, 235 /16s and 241 /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: 302481 Total ARIN prefixes after maximum aggregation: 135645 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302213 Unique aggregates announced from the ARIN address blocks: 146189 ARIN Region origin ASes present in the Internet Routing Table: 19397 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7079 ARIN Region transit ASes present in the Internet Routing Table: 1972 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: 5454 Number of ARIN addresses announced to Internet: 1344041216 Equivalent to 80 /8s, 28 /16s and 113 /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: 283137 Total RIPE prefixes after maximum aggregation: 140009 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285195 Unique aggregates announced from the RIPE address blocks: 185022 RIPE Region origin ASes present in the Internet Routing Table: 29165 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12099 RIPE Region transit ASes present in the Internet Routing Table: 4075 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12965 Number of RIPE addresses announced to Internet: 733895424 Equivalent to 43 /8s, 190 /16s and 91 /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: 125926 Total LACNIC prefixes after maximum aggregation: 30339 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 121754 Unique aggregates announced from the LACNIC address blocks: 49352 LACNIC Region origin ASes present in the Internet Routing Table: 11351 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2697 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: 9349 Number of LACNIC addresses announced to Internet: 170849792 Equivalent to 10 /8s, 46 /16s and 246 /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: 36457 Total AfriNIC prefixes after maximum aggregation: 6938 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 53173 Unique aggregates announced from the AfriNIC address blocks: 19506 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.43 AfriNIC Region origin ASes announcing only one prefix: 740 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1374 Number of AfriNIC addresses announced to Internet: 103453184 Equivalent to 6 /8s, 42 /16s and 146 /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 13540 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6021 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4710 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4437 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4037 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3728 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3418 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3322 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3147 197 616 LCS-AS-AP LARUS Limited, HK 24560 2963 865 501 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 14020 38807 5446 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4639 308 1019 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 174 3578 8766 851 COGENT-174 - Cogent Communications, LLC, 396982 3323 4866 497 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54729 2393 DNIC-AS-00749 - United States Department 16625 2946 1273 2171 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 222 902 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 7234 1711 149 UNI2-AS, ES 39891 4901 302 71 ALJAWWALSTC-AS, SA 20940 3939 3393 113 AKAMAI-ASN1, NL 9009 3903 365 2229 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2562 182 1861 CDNEXT, GB 34984 2425 364 577 TELLCOM-AS, TR 8452 1710 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1594 241 768 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 12678 3314 607 UNINET, MX 10620 3292 433 1195 Telmex Colombia S.A., CO 13999 2480 506 350 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 11664 1409 278 31 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1256 371 22 INTEGRATEL 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 1983 646 33 RAYA-AS, EG 36992 1843 1532 339 ETISALAT-MISR, EG 24863 1279 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1146 524 47 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 571 53 165 Africa-on-Cloud-AS, ZA 36914 557 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 14020 38807 5446 AMAZON-02 - Amazon.com, Inc., US 9808 13540 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12678 3314 607 UNINET, MX 12479 7234 1711 149 UNI2-AS, ES 7545 6021 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4710 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4639 308 1019 CABLEONE - CABLE ONE, INC., US 18403 4437 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 13540 13420 CHINAMOBILE-CN China Mobile Communications Grou 8151 12678 12071 UNINET, MX 12479 7234 7085 UNI2-AS, ES 7545 6021 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4781 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4437 4413 FPT-AS-AP FPT Telecom Company, VN 9498 4710 4372 BBIL-AP BHARTI Airtel Ltd., IN 7552 4037 4008 VIETEL-AS-AP Viettel Group, VN 20940 3939 3826 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 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 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 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: 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 - 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 /11:93 /12:302 /13:582 /14:1200 /15:2096 /16:13706 /17:8267 /18:13562 /19:24871 /20:45217 /21:52262 /22:113427 /23:106340 /24:647381 /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 6851 12678 UNINET, MX 12479 6162 7234 UNI2-AS, ES 39891 3651 4901 ALJAWWALSTC-AS, SA 11492 3499 4639 CABLEONE - CABLE ONE, INC., US 6327 3479 3698 SHAW - Shaw Communications, CA 22773 3051 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2474 14020 AMAZON-02 - Amazon.com, Inc., US 30036 2313 2657 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2146 3292 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) ---------------------------------------------- 1:2507 2:1548 3:979 4:9 5:5090 6:184 7:6 8:1503 9:14 11:172 12:1226 13:619 14:2638 15:420 16:179 17:392 18:918 20:597 21:4 22:188 23:8177 24:2626 25:2 27:2823 29:19 31:3429 32:31 34:81 35:291 36:4643 37:4510 38:10281 39:1255 40:438 41:4503 42:1976 43:2946 44:417 45:19692 46:4939 47:400 48:38 49:2184 50:2054 51:598 52:1255 54:238 55:1124 56:11 57:313 58:2313 59:1341 60:1172 61:3108 62:3104 63:1770 64:6197 65:2111 66:6012 67:3255 68:1488 69:4206 70:1028 71:625 72:3089 74:2974 75:1515 76:605 77:2752 78:1926 79:1803 80:2305 81:2149 82:4027 83:1472 84:2024 85:3691 86:1105 87:2255 88:1338 89:4647 90:822 91:8418 92:2865 93:3012 94:4281 95:4552 96:1447 97:313 98:947 99:782 100:69 101:1549 102:4369 103:32372 104:5402 105:797 106:918 107:2833 108:1225 109:4201 110:2300 111:4057 112:3126 113:1940 114:2165 115:2299 116:2160 117:3334 118:3000 119:2078 120:2670 121:1523 122:2963 123:2302 124:1612 125:2958 126:125 128:1682 129:946 130:1577 131:2351 132:769 133:461 134:1618 135:539 136:1631 137:1549 138:2952 139:1623 140:1774 141:1565 142:2479 143:2161 144:1601 145:632 146:2202 147:2283 148:2786 149:2943 150:1319 151:2653 152:2282 153:923 154:9646 155:2293 156:4578 157:2255 158:1501 159:2755 160:3742 161:1997 162:4043 163:2342 164:1967 165:2643 166:1288 167:2212 168:3935 169:914 170:5465 171:1114 172:4583 173:3434 174:889 175:1343 176:3775 177:4736 178:4341 179:2286 180:2976 181:4362 182:3914 183:2823 184:2018 185:21723 186:5537 187:4846 188:4611 189:4476 190:9657 191:1526 192:11467 193:9505 194:7818 195:5627 196:3273 197:3198 198:6233 199:6092 200:8183 201:6403 202:10625 203:10646 204:4733 205:3779 206:4470 207:3959 208:4373 209:5461 210:4805 211:2687 212:4957 213:4052 214:1073 215:54 216:7146 217:3476 218:1625 219:419 220:2186 221:1314 222:922 223:3293 End of report