IPv4 R&E Routing Table Report 21:10 GMT Thu 05 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: 1034530 Prefixes after maximum aggregation (per Origin AS): 397183 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510229 Number of IPv4 prefixes with a valid ROA: 622324 Number of IPv4 prefixes with an invalid ROA: 106 Number of IPv4 prefixes with no ROA: 412100 Total ASes present in the Internet Routing Table: 78075 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66810 Origin ASes announcing only one prefix: 27330 Transit ASes present in the Internet Routing Table: 11265 Transit-only ASes present in the Internet Routing Table: 577 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 1079 Number of instances of unregistered ASNs: 1110 Number of 32-bit ASNs allocated by the RIRs: 48940 Number of 32-bit ASNs visible in the Routing Table: 40039 Prefixes from 32-bit ASNs in the Routing Table: 222629 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 435 Number of addresses announced to Internet: 3113229824 Equivalent to 185 /8s, 144 /16s and 30 /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: 336581 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280706 Total APNIC prefixes after maximum aggregation: 81842 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267976 Unique aggregates announced from the APNIC address blocks: 107306 APNIC Region origin ASes present in the Internet Routing Table: 15098 APNIC Prefixes per ASN: 17.75 APNIC Region origin ASes announcing only one prefix: 4637 APNIC Region transit ASes present in the Internet Routing Table: 2038 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10653 Number of APNIC addresses announced to Internet: 751852032 Equivalent to 44 /8s, 208 /16s and 90 /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: 304259 Total ARIN prefixes after maximum aggregation: 136625 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303032 Unique aggregates announced from the ARIN address blocks: 147198 ARIN Region origin ASes present in the Internet Routing Table: 19418 ARIN Prefixes per ASN: 15.61 ARIN Region origin ASes announcing only one prefix: 7100 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: 5510 Number of ARIN addresses announced to Internet: 1352655872 Equivalent to 80 /8s, 159 /16s and 228 /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: 285016 Total RIPE prefixes after maximum aggregation: 140723 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 287520 Unique aggregates announced from the RIPE address blocks: 186236 RIPE Region origin ASes present in the Internet Routing Table: 29286 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12166 RIPE Region transit ASes present in the Internet Routing Table: 4068 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: 13124 Number of RIPE addresses announced to Internet: 733214720 Equivalent to 43 /8s, 179 /16s and 248 /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: 126659 Total LACNIC prefixes after maximum aggregation: 30357 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122375 Unique aggregates announced from the LACNIC address blocks: 49745 LACNIC Region origin ASes present in the Internet Routing Table: 11358 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2687 LACNIC Region transit ASes present in the Internet Routing Table: 2582 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: 9370 Number of LACNIC addresses announced to Internet: 170914048 Equivalent to 10 /8s, 47 /16s and 241 /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: 36811 Total AfriNIC prefixes after maximum aggregation: 6940 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53191 Unique aggregates announced from the AfriNIC address blocks: 19357 AfriNIC Region origin ASes present in the Internet Routing Table: 2018 AfriNIC Prefixes per ASN: 26.36 AfriNIC Region origin ASes announcing only one prefix: 740 AfriNIC Region transit ASes present in the Internet Routing Table: 391 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: 1382 Number of AfriNIC addresses announced to Internet: 103348992 Equivalent to 6 /8s, 40 /16s and 251 /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 5990 831 540 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4818 547 332 BBIL-AP BHARTI Airtel Ltd., IN 18403 4561 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4048 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3654 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3464 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3324 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 2985 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2787 175 549 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 14461 41237 5573 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3119 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 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 3421 8764 848 COGENT-174 - Cogent Communications, LLC, 396982 3289 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2853 1252 2157 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 3947 3393 114 AKAMAI-ASN1, NL 9009 3823 355 2248 M247, RO 12389 3144 2318 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2664 192 1953 CDNEXT, GB 34984 2463 366 573 TELLCOM-AS, TR 8452 1695 1852 14 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 12768 3299 596 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2454 506 348 Mega Cable, S.A. de C.V., MX 11830 1957 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 1248 371 22 INTEGRATEL PERU S.A.A., PE 26615 1060 2475 94 TIM SA, BR 22884 1059 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 1242 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 36914 555 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 14461 41237 5573 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12768 3299 596 UNINET, MX 12479 7231 1711 149 UNI2-AS, ES 7545 5990 831 540 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4818 547 332 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 3119 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1018 CABLEONE - CABLE ONE, INC., US 18403 4561 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 12768 12172 UNINET, MX 12479 7231 7082 UNI2-AS, ES 7545 5990 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4561 4537 FPT-AS-AP FPT Telecom Company, VN 9498 4818 4486 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4048 4019 VIETEL-AS-AP Viettel Group, VN 20940 3947 3833 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 /17:8304 /18:13564 /19:25429 /20:45380 /21:52356 /22:113580 /23:107157 /24:650714 /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 6938 12768 UNINET, MX 12479 6165 7231 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3501 4640 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 2594 14461 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2663 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) ---------------------------------------------- 1:2500 2:1614 3:985 4:5 5:5156 6:194 7:6 8:1503 9:28 11:172 12:1195 13:652 14:2659 15:458 16:177 17:398 18:920 20:603 21:4 22:188 23:8228 24:2653 25:2 27:2830 29:19 31:3393 32:30 34:81 35:290 36:4631 37:4468 38:10016 39:1267 40:423 41:4541 42:2050 43:2990 44:441 45:19857 46:4901 47:401 48:86 49:2196 50:2068 51:600 52:1294 54:278 55:1106 56:11 57:321 58:2342 59:1350 60:1175 61:3112 62:3123 63:1760 64:6209 65:2119 66:6012 67:3260 68:1499 69:4241 70:1036 71:621 72:3102 74:2982 75:1498 76:592 77:2832 78:1908 79:1791 80:2329 81:2219 82:3992 83:1452 84:2049 85:3815 86:1105 87:2258 88:1348 89:4680 90:810 91:8413 92:2854 93:3015 94:4308 95:4585 96:1452 97:313 98:950 99:800 100:67 101:1489 102:4463 103:32479 104:5489 105:792 106:924 107:2844 108:1194 109:4234 110:2284 111:4089 112:3148 113:1980 114:2174 115:2324 116:2160 117:3440 118:3016 119:2072 120:2685 121:1521 122:2974 123:2270 124:1633 125:2967 126:125 128:1694 129:962 130:1601 131:2428 132:790 133:463 134:1644 135:569 136:1592 137:1551 138:3124 139:1642 140:1792 141:1583 142:2502 143:2141 144:1723 145:639 146:2206 147:2145 148:2794 149:3036 150:1330 151:2668 152:2287 153:1026 154:9619 155:2299 156:4385 157:2271 158:1496 159:2766 160:3813 161:1954 162:4008 163:2394 164:2031 165:2624 166:1299 167:2248 168:3948 169:890 170:5522 171:1110 172:4583 173:3447 174:886 175:1351 176:3820 177:4856 178:4318 179:2308 180:3009 181:4438 182:3991 183:2842 184:2015 185:21761 186:5656 187:4915 188:4554 189:4516 190:9747 191:1557 192:11443 193:9569 194:7828 195:5697 196:3308 197:3243 198:6282 199:6102 200:8163 201:6359 202:10698 203:10631 204:4766 205:3765 206:4511 207:4022 208:4386 209:5431 210:4785 211:2683 212:4992 213:4094 214:1054 215:46 216:7238 217:3539 218:1682 219:418 220:2194 221:1316 222:937 223:3316 End of report