IPv4 R&E Routing Table Report 21:10 GMT Wed 01 Oct, 2025 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: 1004696 Prefixes after maximum aggregation (per Origin AS): 389741 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495737 Number of IPv4 prefixes with a valid ROA: 574346 Number of IPv4 prefixes with an invalid ROA: 147 Number of IPv4 prefixes with no ROA: 430203 Total ASes present in the Internet Routing Table: 77348 Prefixes per ASN: 12.99 Origin-only ASes present in the Internet Routing Table: 66235 Origin ASes announcing only one prefix: 27078 Transit ASes present in the Internet Routing Table: 11113 Transit-only ASes present in the Internet Routing Table: 553 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 968 Number of instances of unregistered ASNs: 997 Number of 32-bit ASNs allocated by the RIRs: 47597 Number of 32-bit ASNs visible in the Routing Table: 39055 Prefixes from 32-bit ASNs in the Routing Table: 211067 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 440 Number of addresses announced to Internet: 3111596800 Equivalent to 185 /8s, 119 /16s and 51 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 327455 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268599 Total APNIC prefixes after maximum aggregation: 79579 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 258519 Unique aggregates announced from the APNIC address blocks: 105784 APNIC Region origin ASes present in the Internet Routing Table: 14805 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 4506 APNIC Region transit ASes present in the Internet Routing Table: 1980 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10358 Number of APNIC addresses announced to Internet: 750904320 Equivalent to 44 /8s, 193 /16s and 228 /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: 295370 Total ARIN prefixes after maximum aggregation: 133773 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296666 Unique aggregates announced from the ARIN address blocks: 143010 ARIN Region origin ASes present in the Internet Routing Table: 19324 ARIN Prefixes per ASN: 15.35 ARIN Region origin ASes announcing only one prefix: 7091 ARIN Region transit ASes present in the Internet Routing Table: 1986 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5351 Number of ARIN addresses announced to Internet: 1352763904 Equivalent to 80 /8s, 161 /16s and 138 /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: 279921 Total RIPE prefixes after maximum aggregation: 138384 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279495 Unique aggregates announced from the RIPE address blocks: 180587 RIPE Region origin ASes present in the Internet Routing Table: 29074 RIPE Prefixes per ASN: 9.61 RIPE Region origin ASes announcing only one prefix: 12097 RIPE Region transit ASes present in the Internet Routing Table: 4029 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12752 Number of RIPE addresses announced to Internet: 732905728 Equivalent to 43 /8s, 175 /16s and 65 /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: 125001 Total LACNIC prefixes after maximum aggregation: 30486 LACNIC Deaggregation factor: 4.10 Prefixes being announced from the LACNIC address blocks: 121238 Unique aggregates announced from the LACNIC address blocks: 49515 LACNIC Region origin ASes present in the Internet Routing Table: 11292 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2534 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9262 Number of LACNIC addresses announced to Internet: 170777088 Equivalent to 10 /8s, 45 /16s and 218 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 34837 Total AfriNIC prefixes after maximum aggregation: 6858 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 48337 Unique aggregates announced from the AfriNIC address blocks: 16451 AfriNIC Region origin ASes present in the Internet Routing Table: 1969 AfriNIC Prefixes per ASN: 24.55 AfriNIC Region origin ASes announcing only one prefix: 723 AfriNIC Region transit ASes present in the Internet Routing Table: 384 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: 1332 Number of AfriNIC addresses announced to Internet: 104007424 Equivalent to 6 /8s, 51 /16s and 7 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6181 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4498 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3954 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3722 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3296 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2925 862 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2350 504 1503 HUTCHISON-AS-AP HGC Global Communications 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 14298 40897 5388 AMAZON-02, US 11492 4749 320 797 CABLEONE, US 22773 3974 3065 337 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3677 1320 81 SHAW, CA 396982 3272 4824 461 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 174 3196 8768 795 COGENT-174, US 4155 3076 238 1716 USDA-1, US 16625 3047 1303 2216 AKAMAI-AS, 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 7436 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4038 3395 126 AKAMAI-ASN1, NL 9009 3914 367 2199 M247, RO 12389 3123 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2453 174 1777 CDNEXT, GB 34984 2416 363 577 TELLCOM-AS, TR 203020 1888 203 908 HOSTROYALE, IN 8452 1628 1852 14 TE-AS TE-AS, EG 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 12361 3272 582 UNINET, MX 10620 3505 474 1048 Telmex Colombia S.A., CO 13999 2542 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1067 71 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2486 56 TIM SA, BR 11664 934 278 31 Techtel LMDS Comunicaciones Interactivas 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 1770 616 28 RAYA-AS, EG 36992 1509 1498 384 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1249 389 20 LINKdotNET-AS, EG 29571 1187 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 843 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 15399 548 57 59 WANANCHI-, 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 14298 40897 5388 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12361 3272 582 UNINET, MX 12479 7436 1711 149 UNI2-AS, ES 7545 6181 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4749 320 797 CABLEONE, US 18403 4498 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4038 3395 126 AKAMAI-ASN1, NL 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12361 11779 UNINET, MX 12479 7436 7287 UNI2-AS, ES 7545 6181 5576 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4498 4473 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4749 3952 CABLEONE, US 7552 3954 3926 VIETEL-AS-AP Viettel Group, VN 20940 4038 3912 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 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.146.124.0/24 Origin: 7029 WINDSTREAM, US 23.146.124.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 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 /10:41 /11:93 /12:301 /13:583 /14:1204 /15:2132 /16:13777 /17:8211 /18:13459 /19:24633 /20:44311 /21:51889 /22:112510 /23:103925 /24:627596 /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 6587 12361 UNINET, MX 12479 6399 7436 UNI2-AS, ES 11492 3562 4749 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3677 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2525 3974 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2395 14298 AMAZON-02, US 30036 2289 2629 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2223 3505 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) ---------------------------------------------- 1:2424 2:1553 3:942 4:10 5:4834 6:169 7:6 8:1528 9:6 11:172 12:1241 13:568 14:2637 15:401 16:303 17:387 18:906 20:574 21:4 22:188 23:7918 24:2698 25:2 27:2799 29:19 31:3343 32:31 33:1 34:81 35:267 36:4439 37:4549 38:9497 39:1089 40:296 41:4363 42:2001 43:2727 44:392 45:18860 46:5192 47:339 49:2019 50:2051 51:594 52:1600 54:359 55:1177 56:11 57:286 58:2258 59:1329 60:1187 61:2981 62:3086 63:1767 64:5654 65:2131 66:4939 67:3107 68:1096 69:3947 70:1036 71:639 72:2925 74:2834 75:1495 76:597 77:2776 78:1918 79:1758 80:2250 81:2120 82:3450 83:1470 84:1984 85:3524 86:1097 87:2135 88:1358 89:4499 90:808 91:8379 92:2777 93:2986 94:4160 95:4488 96:1493 97:312 98:953 99:741 100:71 101:1219 102:4151 103:32269 104:5359 105:775 106:895 107:2661 108:1211 109:4220 110:2242 111:3779 112:2650 113:1846 114:1991 115:2338 116:2079 117:2939 118:3055 119:1928 120:2264 121:1355 122:2819 123:2265 124:1661 125:2882 126:93 128:1604 129:967 130:1291 131:2148 132:784 133:461 134:1610 135:365 136:1489 137:1312 138:2804 139:1610 140:1630 141:1551 142:1918 143:2054 144:1266 145:628 146:2181 147:2124 148:2735 149:2906 150:1271 151:2543 152:2174 153:643 154:7426 155:2054 156:3491 157:1991 158:1418 159:2587 160:3582 161:1991 162:3946 163:2233 164:2131 165:2586 166:1557 167:2100 168:3833 169:781 170:5368 171:1019 172:4248 173:3407 174:909 175:1342 176:3804 177:4767 178:4259 179:2269 180:2617 181:4250 182:3724 183:2532 184:2071 185:21682 186:5371 187:4692 188:4303 189:4392 190:9699 191:1559 192:11411 193:9484 194:7797 195:5574 196:3284 197:3243 198:6244 199:8729 200:8220 201:6354 202:10452 203:10666 204:4590 205:3667 206:4556 207:3697 208:4276 209:5345 210:4762 211:2685 212:4794 213:3893 214:1035 215:52 216:6912 217:3351 218:1566 219:394 220:2187 221:1236 222:752 223:3014 End of report