IPv4 R&E Routing Table Report 21:10 GMT Tue 27 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: 1029426 Prefixes after maximum aggregation (per Origin AS): 395454 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507676 Number of IPv4 prefixes with a valid ROA: 614479 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 414840 Total ASes present in the Internet Routing Table: 77822 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 66605 Origin ASes announcing only one prefix: 27209 Transit ASes present in the Internet Routing Table: 11217 Transit-only ASes present in the Internet Routing Table: 574 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: 1037 Number of instances of unregistered ASNs: 1079 Number of 32-bit ASNs allocated by the RIRs: 48508 Number of 32-bit ASNs visible in the Routing Table: 39720 Prefixes from 32-bit ASNs in the Routing Table: 220595 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: 462 Number of addresses announced to Internet: 3106874368 Equivalent to 185 /8s, 47 /16s and 36 /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: 334840 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280223 Total APNIC prefixes after maximum aggregation: 81959 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266514 Unique aggregates announced from the APNIC address blocks: 107117 APNIC Region origin ASes present in the Internet Routing Table: 15016 APNIC Prefixes per ASN: 17.75 APNIC Region origin ASes announcing only one prefix: 4599 APNIC Region transit ASes present in the Internet Routing Table: 2008 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: 10579 Number of APNIC addresses announced to Internet: 753649920 Equivalent to 44 /8s, 235 /16s and 201 /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: 302451 Total ARIN prefixes after maximum aggregation: 135616 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302214 Unique aggregates announced from the ARIN address blocks: 146234 ARIN Region origin ASes present in the Internet Routing Table: 19394 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7077 ARIN Region transit ASes present in the Internet Routing Table: 1977 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: 5453 Number of ARIN addresses announced to Internet: 1344859904 Equivalent to 80 /8s, 40 /16s and 239 /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: 283236 Total RIPE prefixes after maximum aggregation: 140028 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285250 Unique aggregates announced from the RIPE address blocks: 184966 RIPE Region origin ASes present in the Internet Routing Table: 29164 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12102 RIPE Region transit ASes present in the Internet Routing Table: 4081 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: 12965 Number of RIPE addresses announced to Internet: 733863936 Equivalent to 43 /8s, 189 /16s and 224 /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: 125998 Total LACNIC prefixes after maximum aggregation: 30237 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121816 Unique aggregates announced from the LACNIC address blocks: 49449 LACNIC Region origin ASes present in the Internet Routing Table: 11342 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2689 LACNIC Region transit ASes present in the Internet Routing Table: 2558 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: 9344 Number of LACNIC addresses announced to Internet: 170772736 Equivalent to 10 /8s, 45 /16s and 201 /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: 36481 Total AfriNIC prefixes after maximum aggregation: 6945 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 53169 Unique aggregates announced from the AfriNIC address blocks: 19516 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 26.36 AfriNIC Region origin ASes announcing only one prefix: 742 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: 1379 Number of AfriNIC addresses announced to Internet: 103445504 Equivalent to 6 /8s, 42 /16s and 116 /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 13541 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6021 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4707 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4451 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4037 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3727 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 3131 196 615 LCS-AS-AP LARUS Limited, HK 24560 2962 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 14028 38808 5444 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4632 308 1028 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 174 3569 8766 847 COGENT-174 - Cogent Communications, LLC, 396982 3319 4866 495 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 7240 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 113 AKAMAI-ASN1, NL 9009 3910 365 2235 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 1711 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 12674 3314 607 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2479 506 350 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 11664 1402 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 1278 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1128 521 44 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 564 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 14028 38808 5444 AMAZON-02 - Amazon.com, Inc., US 9808 13541 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12674 3314 607 UNINET, MX 12479 7240 1711 149 UNI2-AS, ES 7545 6021 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4707 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4632 308 1028 CABLEONE - CABLE ONE, INC., US 18403 4451 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 13541 13421 CHINAMOBILE-CN China Mobile Communications Grou 8151 12674 12067 UNINET, MX 12479 7240 7091 UNI2-AS, ES 7545 6021 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4451 4427 FPT-AS-AP FPT Telecom Company, VN 22773 4781 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4707 4369 BBIL-AP BHARTI Airtel Ltd., IN 7552 4037 4008 VIETEL-AS-AP Viettel Group, VN 20940 3943 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 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 /14:1202 /15:2096 /16:13710 /17:8268 /18:13567 /19:24881 /20:45172 /21:52269 /22:113467 /23:106344 /24:647402 /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 6848 12674 UNINET, MX 12479 6169 7240 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3495 4632 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 2475 14028 AMAZON-02 - Amazon.com, Inc., US 30036 2310 2654 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2224 3444 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) ---------------------------------------------- 1:2505 2:1550 3:980 4:9 5:5077 6:185 7:6 8:1503 9:14 11:172 12:1226 13:621 14:2630 15:419 16:179 17:392 18:916 20:597 21:4 22:188 23:8180 24:2623 25:2 27:2827 29:19 31:3432 32:31 34:81 35:288 36:4640 37:4516 38:10277 39:1254 40:438 41:4524 42:1981 43:2935 44:417 45:19657 46:4938 47:400 48:38 49:2197 50:2055 51:598 52:1257 54:238 55:1126 56:11 57:312 58:2325 59:1342 60:1172 61:3108 62:3106 63:1769 64:6198 65:2119 66:6002 67:3255 68:1486 69:4209 70:1027 71:625 72:3091 74:2974 75:1514 76:604 77:2751 78:1926 79:1805 80:2308 81:2147 82:4031 83:1473 84:2026 85:3688 86:1105 87:2251 88:1341 89:4650 90:822 91:8422 92:2863 93:3010 94:4280 95:4543 96:1444 97:313 98:950 99:782 100:69 101:1548 102:4374 103:32370 104:5459 105:789 106:918 107:2830 108:1223 109:4202 110:2302 111:4054 112:3126 113:1940 114:2169 115:2298 116:2161 117:3308 118:2997 119:2087 120:2669 121:1531 122:2960 123:2309 124:1606 125:2956 126:125 128:1681 129:943 130:1577 131:2338 132:768 133:461 134:1619 135:540 136:1632 137:1547 138:2980 139:1621 140:1778 141:1565 142:2488 143:2159 144:1596 145:632 146:2203 147:2281 148:2789 149:2941 150:1321 151:2644 152:2282 153:921 154:9641 155:2304 156:4578 157:2273 158:1496 159:2755 160:3742 161:2015 162:4033 163:2342 164:1966 165:2639 166:1289 167:2211 168:3938 169:906 170:5467 171:1114 172:4586 173:3431 174:890 175:1329 176:3773 177:4727 178:4341 179:2284 180:2985 181:4389 182:3913 183:2819 184:2018 185:21738 186:5546 187:4841 188:4611 189:4471 190:9655 191:1515 192:11466 193:9506 194:7824 195:5638 196:3279 197:3190 198:6236 199:6098 200:8175 201:6395 202:10620 203:10639 204:4738 205:3774 206:4465 207:3963 208:4371 209:5462 210:4805 211:2687 212:4956 213:4048 214:1064 215:54 216:7147 217:3465 218:1624 219:419 220:2186 221:1314 222:920 223:3294 End of report