IPv4 R&E Routing Table Report 21:10 GMT Thu 22 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: 1027849 Prefixes after maximum aggregation (per Origin AS): 395352 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507672 Number of IPv4 prefixes with a valid ROA: 613534 Number of IPv4 prefixes with an invalid ROA: 106 Number of IPv4 prefixes with no ROA: 414209 Total ASes present in the Internet Routing Table: 77790 Prefixes per ASN: 13.21 Origin-only ASes present in the Internet Routing Table: 66571 Origin ASes announcing only one prefix: 27197 Transit ASes present in the Internet Routing Table: 11219 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 19 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: 987 Number of instances of unregistered ASNs: 1028 Number of 32-bit ASNs allocated by the RIRs: 48453 Number of 32-bit ASNs visible in the Routing Table: 39679 Prefixes from 32-bit ASNs in the Routing Table: 220352 Number of bogon 32-bit ASNs visible in the Routing Table: 96 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 471 Number of addresses announced to Internet: 3106449664 Equivalent to 185 /8s, 40 /16s and 169 /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: 334779 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279854 Total APNIC prefixes after maximum aggregation: 81956 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 266095 Unique aggregates announced from the APNIC address blocks: 107008 APNIC Region origin ASes present in the Internet Routing Table: 14996 APNIC Prefixes per ASN: 17.74 APNIC Region origin ASes announcing only one prefix: 4591 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: 10561 Number of APNIC addresses announced to Internet: 753542400 Equivalent to 44 /8s, 234 /16s and 37 /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: 301394 Total ARIN prefixes after maximum aggregation: 135392 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301240 Unique aggregates announced from the ARIN address blocks: 146236 ARIN Region origin ASes present in the Internet Routing Table: 19400 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7076 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: 5454 Number of ARIN addresses announced to Internet: 1344755456 Equivalent to 80 /8s, 39 /16s and 87 /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: 283038 Total RIPE prefixes after maximum aggregation: 139909 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284966 Unique aggregates announced from the RIPE address blocks: 184801 RIPE Region origin ASes present in the Internet Routing Table: 29131 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12101 RIPE Region transit ASes present in the Internet Routing Table: 4061 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: 12933 Number of RIPE addresses announced to Internet: 733900288 Equivalent to 43 /8s, 190 /16s and 110 /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: 126061 Total LACNIC prefixes after maximum aggregation: 30497 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121872 Unique aggregates announced from the LACNIC address blocks: 49747 LACNIC Region origin ASes present in the Internet Routing Table: 11357 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2571 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: 9354 Number of LACNIC addresses announced to Internet: 170564096 Equivalent to 10 /8s, 42 /16s and 154 /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: 36515 Total AfriNIC prefixes after maximum aggregation: 6930 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53204 Unique aggregates announced from the AfriNIC address blocks: 19477 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.39 AfriNIC Region origin ASes announcing only one prefix: 746 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1377 Number of AfriNIC addresses announced to Internet: 103402752 Equivalent to 6 /8s, 41 /16s and 205 /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 13523 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6025 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4694 543 342 BBIL-AP BHARTI Airtel Ltd., IN 18403 4464 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4054 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3419 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3322 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3154 198 613 LCS-AS-AP LARUS Limited, HK 24560 2958 864 504 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 14014 38739 5452 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3695 1321 70 SHAW - Shaw Communications, CA 396982 3329 4868 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54729 2394 DNIC-AS-00749 - United States Department 174 3097 8766 838 COGENT-174 - Cogent Communications, LLC, 16625 2949 1274 2172 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2696 222 898 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 7235 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 113 AKAMAI-ASN1, NL 9009 3911 365 2236 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2562 182 1859 CDNEXT, GB 34984 2425 364 577 TELLCOM-AS, TR 8452 1713 1852 14 TE-AS TE-AS, EG 203020 1612 243 784 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 12728 3308 603 UNINET, MX 10620 3441 457 1108 Telmex Colombia S.A., CO 13999 2483 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 11664 1398 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 1257 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 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 1841 1532 339 ETISALAT-MISR, EG 24863 1279 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1144 522 45 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 570 53 164 Africa-on-Cloud-AS, ZA 36914 569 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 14014 38739 5452 AMAZON-02 - Amazon.com, Inc., US 9808 13523 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12728 3308 603 UNINET, MX 12479 7235 1711 149 UNI2-AS, ES 7545 6025 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4780 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4694 543 342 BBIL-AP BHARTI Airtel Ltd., IN 11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4464 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 13523 13403 CHINAMOBILE-CN China Mobile Communications Grou 8151 12728 12125 UNINET, MX 12479 7235 7086 UNI2-AS, ES 7545 6025 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4464 4440 FPT-AS-AP FPT Telecom Company, VN 22773 4780 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4694 4352 BBIL-AP BHARTI Airtel Ltd., IN 7552 4054 4025 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 204464 UNALLOCATED 5.175.223.0/24 211066 RYZEHOSTING-TRADING, AT 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 Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 5.182.62.0/24 Origin: 214476 CANUS, CH 5.182.62.0/24 Transit: 13030 INIT7, CH 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 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 /15:2094 /16:13707 /17:8259 /18:13552 /19:24883 /20:44864 /21:52218 /22:113435 /23:106288 /24:646299 /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 6889 12728 UNINET, MX 12479 6165 7235 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3498 4638 CABLEONE - CABLE ONE, INC., US 6327 3478 3695 SHAW - Shaw Communications, CA 22773 3051 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2478 14014 AMAZON-02 - Amazon.com, Inc., US 30036 2305 2647 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2221 3441 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 2:1543 3:965 4:9 5:4992 6:186 7:6 8:1502 9:14 11:172 12:1227 13:620 14:2630 15:415 16:179 17:391 18:917 20:596 21:4 22:188 23:8183 24:2629 25:2 27:2833 29:19 31:3435 32:31 34:81 35:289 36:4639 37:4525 38:9858 39:1254 40:439 41:4538 42:1995 43:2936 44:417 45:19674 46:4952 47:400 48:20 49:2189 50:2063 51:598 52:1259 54:238 55:1126 56:11 57:312 58:2318 59:1346 60:1172 61:3105 62:3106 63:1773 64:6195 65:2129 66:6006 67:3255 68:1482 69:4203 70:1024 71:626 72:3088 74:2958 75:1513 76:605 77:2739 78:1919 79:1805 80:2303 81:2107 82:4037 83:1476 84:2026 85:3678 86:1103 87:2252 88:1341 89:4645 90:821 91:8414 92:2858 93:3019 94:4278 95:4518 96:1450 97:312 98:954 99:780 100:69 101:1548 102:4359 103:32314 104:5457 105:816 106:916 107:2823 108:1225 109:4243 110:2296 111:4050 112:3111 113:1938 114:2168 115:2308 116:2163 117:3305 118:2992 119:2087 120:2594 121:1530 122:2956 123:2310 124:1606 125:2954 126:125 128:1618 129:949 130:1568 131:2294 132:773 133:461 134:1615 135:536 136:1626 137:1470 138:2995 139:1621 140:1764 141:1562 142:2466 143:2159 144:1567 145:626 146:2203 147:2280 148:2809 149:2925 150:1322 151:2625 152:2278 153:917 154:9623 155:2306 156:4592 157:2260 158:1503 159:2756 160:3738 161:2003 162:4028 163:2336 164:1968 165:2644 166:1301 167:2212 168:3930 169:866 170:5461 171:1120 172:4590 173:3421 174:891 175:1344 176:3775 177:4720 178:4312 179:2289 180:2995 181:4392 182:3895 183:2754 184:2026 185:21710 186:5534 187:4857 188:4615 189:4501 190:9668 191:1513 192:11474 193:9506 194:7848 195:5683 196:3275 197:3190 198:6232 199:6119 200:8171 201:6393 202:10619 203:10651 204:4744 205:3760 206:4416 207:3966 208:4378 209:5462 210:4791 211:2683 212:4963 213:4061 214:1065 215:54 216:7140 217:3454 218:1622 219:419 220:2187 221:1312 222:907 223:3274 End of report