IPv4 R&E Routing Table Report 21:10 GMT Thu 09 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: 1008278 Prefixes after maximum aggregation (per Origin AS): 391135 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 496423 Number of IPv4 prefixes with a valid ROA: 577819 Number of IPv4 prefixes with an invalid ROA: 146 Number of IPv4 prefixes with no ROA: 430309 Total ASes present in the Internet Routing Table: 77382 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66274 Origin ASes announcing only one prefix: 27073 Transit ASes present in the Internet Routing Table: 11108 Transit-only ASes present in the Internet Routing Table: 558 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: 1004 Number of instances of unregistered ASNs: 1033 Number of 32-bit ASNs allocated by the RIRs: 47652 Number of 32-bit ASNs visible in the Routing Table: 39094 Prefixes from 32-bit ASNs in the Routing Table: 212458 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: 489 Number of addresses announced to Internet: 3111495680 Equivalent to 185 /8s, 117 /16s and 168 /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: 328482 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269259 Total APNIC prefixes after maximum aggregation: 79984 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259082 Unique aggregates announced from the APNIC address blocks: 105801 APNIC Region origin ASes present in the Internet Routing Table: 14821 APNIC Prefixes per ASN: 17.48 APNIC Region origin ASes announcing only one prefix: 4513 APNIC Region transit ASes present in the Internet Routing Table: 1982 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10378 Number of APNIC addresses announced to Internet: 751469056 Equivalent to 44 /8s, 202 /16s and 130 /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: 297367 Total ARIN prefixes after maximum aggregation: 134514 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 298253 Unique aggregates announced from the ARIN address blocks: 143861 ARIN Region origin ASes present in the Internet Routing Table: 19331 ARIN Prefixes per ASN: 15.43 ARIN Region origin ASes announcing only one prefix: 7098 ARIN Region transit ASes present in the Internet Routing Table: 1983 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: 5356 Number of ARIN addresses announced to Internet: 1352350720 Equivalent to 80 /8s, 155 /16s and 60 /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: 280717 Total RIPE prefixes after maximum aggregation: 138770 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280279 Unique aggregates announced from the RIPE address blocks: 181043 RIPE Region origin ASes present in the Internet Routing Table: 29065 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12086 RIPE Region transit ASes present in the Internet Routing Table: 4015 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: 12748 Number of RIPE addresses announced to Internet: 732711168 Equivalent to 43 /8s, 172 /16s and 73 /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: 125043 Total LACNIC prefixes after maximum aggregation: 30325 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121223 Unique aggregates announced from the LACNIC address blocks: 49425 LACNIC Region origin ASes present in the Internet Routing Table: 11302 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2542 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9279 Number of LACNIC addresses announced to Internet: 170712064 Equivalent to 10 /8s, 44 /16s and 220 /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: 34888 Total AfriNIC prefixes after maximum aggregation: 6867 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 48951 Unique aggregates announced from the AfriNIC address blocks: 15863 AfriNIC Region origin ASes present in the Internet Routing Table: 1970 AfriNIC Prefixes per ASN: 24.85 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1333 Number of AfriNIC addresses announced to Internet: 103995904 Equivalent to 6 /8s, 50 /16s and 218 /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 13699 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4605 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4471 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3708 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3299 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2927 863 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2466 512 1595 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 14343 40998 5375 AMAZON-02, US 11492 4755 321 797 CABLEONE, US 22773 4014 3067 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3273 4824 465 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3110 241 1736 USDA-1, US 174 3092 8767 805 COGENT-174, US 16625 3041 1301 2212 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 7403 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4044 3395 126 AKAMAI-ASN1, NL 9009 3943 371 2229 M247, RO 12389 3139 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2490 178 1807 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 2022 221 988 HOSTROYALE, IN 8452 1653 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 12392 3282 574 UNINET, MX 10620 3476 468 1086 Telmex Colombia S.A., CO 13999 2543 511 346 Mega Cable, S.A. de C.V., MX 11830 1988 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, 11664 1239 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 23 Telefonica del Peru S.A.A., PE 22884 1066 71 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 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 1765 600 27 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1249 389 20 LINKdotNET-AS, EG 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 15399 544 57 55 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 14343 40998 5375 AMAZON-02, US 9808 13699 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12392 3282 574 UNINET, MX 12479 7403 1711 149 UNI2-AS, ES 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4755 321 797 CABLEONE, US 18403 4605 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4471 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4044 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 13699 13582 CHINAMOBILE-CN China Mobile Communications Grou 8151 12392 11818 UNINET, MX 12479 7403 7254 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4605 4580 FPT-AS-AP FPT Telecom Company, VN 9498 4471 4159 BBIL-AP BHARTI Airtel Ltd., IN 11492 4755 3958 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 20940 4044 3918 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 210537 UNALLOCATED 5.83.148.0/24 215828 TMW-GLOBAL-NETWORKS TMW 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 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 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 /13:584 /14:1203 /15:2128 /16:13785 /17:8214 /18:13469 /19:24679 /20:44339 /21:51941 /22:112684 /23:104344 /24:630442 /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 6614 12392 UNINET, MX 12479 6367 7403 UNI2-AS, ES 11492 3569 4755 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2524 4014 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2410 14343 AMAZON-02, US 30036 2294 2634 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3476 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) ---------------------------------------------- 1:2427 2:1560 3:943 4:10 5:4846 6:170 7:6 8:1531 9:6 11:172 12:1240 13:569 14:2643 15:401 16:304 17:386 18:908 20:574 21:4 22:188 23:7946 24:2702 25:2 27:2810 29:19 31:3359 32:31 33:1 34:81 35:267 36:4445 37:4551 38:9534 39:1089 40:469 41:4305 42:2081 43:2733 44:397 45:19117 46:5210 47:342 49:2083 50:2054 51:596 52:1593 54:359 55:1183 56:11 57:283 58:2307 59:1306 60:1189 61:2922 62:3088 63:1768 64:5681 65:2131 66:5073 67:3126 68:1212 69:4009 70:1040 71:642 72:2982 74:2838 75:1505 76:603 77:2777 78:1917 79:1752 80:2243 81:2126 82:3474 83:1473 84:1990 85:3526 86:1098 87:2144 88:1358 89:4507 90:806 91:8386 92:2806 93:2986 94:4163 95:4519 96:1495 97:312 98:949 99:752 100:71 101:1220 102:4154 103:32271 104:5466 105:787 106:895 107:2665 108:1210 109:4229 110:2247 111:3751 112:2648 113:1855 114:2059 115:2340 116:2073 117:3011 118:3058 119:1980 120:2279 121:1467 122:2810 123:2266 124:1657 125:2883 126:125 128:1604 129:963 130:1384 131:2162 132:792 133:462 134:1614 135:363 136:1492 137:1318 138:2825 139:1602 140:1643 141:1539 142:2061 143:2086 144:1270 145:628 146:2184 147:2135 148:2746 149:2917 150:1271 151:2603 152:2170 153:641 154:7874 155:2114 156:3290 157:1988 158:1431 159:2604 160:3628 161:1995 162:3949 163:2301 164:1949 165:2544 166:1562 167:2108 168:3837 169:780 170:5378 171:1025 172:4479 173:3413 174:906 175:1345 176:3809 177:4773 178:4289 179:2277 180:2691 181:4243 182:3750 183:2551 184:2076 185:21671 186:5377 187:4720 188:4381 189:4418 190:9668 191:1548 192:11405 193:9479 194:7793 195:5576 196:3271 197:3230 198:6241 199:8779 200:8202 201:6346 202:10470 203:10600 204:4602 205:3705 206:4446 207:3727 208:4258 209:5368 210:4747 211:2685 212:4826 213:3894 214:1037 215:52 216:6957 217:3359 218:1571 219:394 220:2186 221:1248 222:753 223:3019 End of report