IPv4 R&E Routing Table Report 21:10 GMT Sun 25 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: 1028266 Prefixes after maximum aggregation (per Origin AS): 395183 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507501 Number of IPv4 prefixes with a valid ROA: 613802 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 414357 Total ASes present in the Internet Routing Table: 77827 Prefixes per ASN: 13.21 Origin-only ASes present in the Internet Routing Table: 66602 Origin ASes announcing only one prefix: 27202 Transit ASes present in the Internet Routing Table: 11225 Transit-only ASes present in the Internet Routing Table: 573 Paths with bogon ASNs present in the IPv4 Routing Table: 22 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 85 Max AS path prepend of ASN (139009) 81 Prefixes from unregistered ASNs in the Routing Table: 1048 Number of instances of unregistered ASNs: 1091 Number of 32-bit ASNs allocated by the RIRs: 48503 Number of 32-bit ASNs visible in the Routing Table: 39720 Prefixes from 32-bit ASNs in the Routing Table: 220476 Number of bogon 32-bit ASNs visible in the Routing Table: 102 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 469 Number of addresses announced to Internet: 3106040064 Equivalent to 185 /8s, 34 /16s and 105 /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: 334703 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280016 Total APNIC prefixes after maximum aggregation: 81979 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266216 Unique aggregates announced from the APNIC address blocks: 107111 APNIC Region origin ASes present in the Internet Routing Table: 15017 APNIC Prefixes per ASN: 17.73 APNIC Region origin ASes announcing only one prefix: 4594 APNIC Region transit ASes present in the Internet Routing Table: 2005 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 85 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10584 Number of APNIC addresses announced to Internet: 753653248 Equivalent to 44 /8s, 235 /16s and 214 /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: 301299 Total ARIN prefixes after maximum aggregation: 135393 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301161 Unique aggregates announced from the ARIN address blocks: 146130 ARIN Region origin ASes present in the Internet Routing Table: 19391 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7071 ARIN Region transit ASes present in the Internet Routing Table: 1980 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: 5449 Number of ARIN addresses announced to Internet: 1343683328 Equivalent to 80 /8s, 22 /16s and 251 /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: 283094 Total RIPE prefixes after maximum aggregation: 139973 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285015 Unique aggregates announced from the RIPE address blocks: 184874 RIPE Region origin ASes present in the Internet Routing Table: 29157 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12110 RIPE Region transit ASes present in the Internet Routing Table: 4074 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: 12956 Number of RIPE addresses announced to Internet: 734223104 Equivalent to 43 /8s, 195 /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: 126327 Total LACNIC prefixes after maximum aggregation: 30235 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 121947 Unique aggregates announced from the LACNIC address blocks: 49496 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2574 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: 9353 Number of LACNIC addresses announced to Internet: 170760448 Equivalent to 10 /8s, 45 /16s and 153 /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: 36482 Total AfriNIC prefixes after maximum aggregation: 6927 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53457 Unique aggregates announced from the AfriNIC address blocks: 19489 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.52 AfriNIC Region origin ASes announcing only one prefix: 744 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: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103435776 Equivalent to 6 /8s, 42 /16s and 78 /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 13531 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6024 833 574 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4409 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4037 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3418 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3321 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3195 200 626 LCS-AS-AP LARUS Limited, HK 24560 2959 865 505 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 13992 38809 5441 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4636 308 1027 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 396982 3330 4868 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54729 2393 DNIC-AS-00749 - United States Department 174 3100 8766 840 COGENT-174 - Cogent Communications, LLC, 16625 2948 1274 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 7237 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 113 AKAMAI-ASN1, NL 9009 3914 366 2238 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1860 CDNEXT, GB 34984 2425 364 577 TELLCOM-AS, TR 8452 1712 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 12668 3298 606 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2484 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 11664 1396 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 1258 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 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 556 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 13992 38809 5441 AMAZON-02 - Amazon.com, Inc., US 9808 13531 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12668 3298 606 UNINET, MX 12479 7237 1711 149 UNI2-AS, ES 7545 6024 833 574 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 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4636 308 1027 CABLEONE - CABLE ONE, INC., US 18403 4409 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 13531 13411 CHINAMOBILE-CN China Mobile Communications Grou 8151 12668 12062 UNINET, MX 12479 7237 7088 UNI2-AS, ES 7545 6024 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4781 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4409 4385 FPT-AS-AP FPT Telecom Company, VN 9498 4703 4365 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 /14:1204 /15:2095 /16:13706 /17:8264 /18:13557 /19:24881 /20:44919 /21:52235 /22:113424 /23:106321 /24:646612 /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 6841 12668 UNINET, MX 12479 6167 7237 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3496 4636 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 13992 AMAZON-02 - Amazon.com, Inc., US 30036 2306 2647 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 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) ---------------------------------------------- 1:2499 2:1544 3:968 4:9 5:5019 6:186 7:6 8:1507 9:14 11:172 12:1226 13:613 14:2635 15:418 16:179 17:390 18:916 20:597 21:4 22:188 23:8188 24:2615 25:2 27:2834 29:19 31:3431 32:31 34:81 35:289 36:4638 37:4499 38:9870 39:1254 40:438 41:4538 42:1959 43:2932 44:418 45:19680 46:4966 47:400 48:38 49:2193 50:2053 51:598 52:1257 54:238 55:1109 56:11 57:310 58:2323 59:1341 60:1172 61:3107 62:3104 63:1773 64:6193 65:2123 66:6000 67:3255 68:1485 69:4206 70:1023 71:625 72:3084 74:2965 75:1513 76:604 77:2743 78:1921 79:1804 80:2304 81:2125 82:4039 83:1477 84:2026 85:3686 86:1103 87:2253 88:1340 89:4651 90:821 91:8413 92:2859 93:3018 94:4281 95:4528 96:1445 97:313 98:951 99:782 100:69 101:1550 102:4369 103:32357 104:5453 105:789 106:916 107:2824 108:1224 109:4234 110:2304 111:4052 112:3119 113:1933 114:2170 115:2303 116:2161 117:3309 118:2996 119:2085 120:2593 121:1530 122:2959 123:2312 124:1606 125:2954 126:125 128:1677 129:950 130:1577 131:2298 132:772 133:461 134:1615 135:539 136:1622 137:1478 138:2993 139:1619 140:1771 141:1562 142:2468 143:2150 144:1574 145:632 146:2200 147:2281 148:2808 149:2937 150:1320 151:2634 152:2277 153:914 154:9637 155:2300 156:4819 157:2265 158:1495 159:2752 160:3742 161:2002 162:4027 163:2340 164:1967 165:2637 166:1288 167:2210 168:3937 169:908 170:5446 171:1116 172:4592 173:3428 174:889 175:1344 176:3760 177:4720 178:4314 179:2285 180:2986 181:4393 182:3903 183:2749 184:2015 185:21720 186:5548 187:4863 188:4612 189:4465 190:9670 191:1523 192:11466 193:9497 194:7839 195:5651 196:3279 197:3175 198:6230 199:6113 200:8186 201:6396 202:10620 203:10658 204:4741 205:3754 206:4415 207:3966 208:4373 209:5457 210:4805 211:2684 212:4953 213:4040 214:1057 215:54 216:7145 217:3463 218:1622 219:419 220:2188 221:1315 222:911 223:3290 End of report