IPv4 R&E Routing Table Report 21:10 GMT Wed 15 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: 1009193 Prefixes after maximum aggregation (per Origin AS): 391421 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 497574 Number of IPv4 prefixes with a valid ROA: 579418 Number of IPv4 prefixes with an invalid ROA: 135 Number of IPv4 prefixes with no ROA: 429640 Total ASes present in the Internet Routing Table: 77437 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66323 Origin ASes announcing only one prefix: 27120 Transit ASes present in the Internet Routing Table: 11114 Transit-only ASes present in the Internet Routing Table: 562 Paths with bogon ASNs present in the IPv4 Routing Table: 45 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: 994 Number of instances of unregistered ASNs: 1060 Number of 32-bit ASNs allocated by the RIRs: 47715 Number of 32-bit ASNs visible in the Routing Table: 39144 Prefixes from 32-bit ASNs in the Routing Table: 213041 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 443 Number of addresses announced to Internet: 3111406336 Equivalent to 185 /8s, 116 /16s and 75 /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: 329010 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269790 Total APNIC prefixes after maximum aggregation: 80072 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259473 Unique aggregates announced from the APNIC address blocks: 105915 APNIC Region origin ASes present in the Internet Routing Table: 14835 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4531 APNIC Region transit ASes present in the Internet Routing Table: 1976 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: 10391 Number of APNIC addresses announced to Internet: 751517184 Equivalent to 44 /8s, 203 /16s and 62 /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: 298008 Total ARIN prefixes after maximum aggregation: 134529 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298915 Unique aggregates announced from the ARIN address blocks: 144294 ARIN Region origin ASes present in the Internet Routing Table: 19349 ARIN Prefixes per ASN: 15.45 ARIN Region origin ASes announcing only one prefix: 7105 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: 5370 Number of ARIN addresses announced to Internet: 1352409600 Equivalent to 80 /8s, 156 /16s and 34 /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: 280443 Total RIPE prefixes after maximum aggregation: 138917 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280561 Unique aggregates announced from the RIPE address blocks: 181179 RIPE Region origin ASes present in the Internet Routing Table: 29087 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12100 RIPE Region transit ASes present in the Internet Routing Table: 4019 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: 12768 Number of RIPE addresses announced to Internet: 732771328 Equivalent to 43 /8s, 173 /16s and 52 /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: 125077 Total LACNIC prefixes after maximum aggregation: 30360 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121176 Unique aggregates announced from the LACNIC address blocks: 49436 LACNIC Region origin ASes present in the Internet Routing Table: 11301 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2553 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9278 Number of LACNIC addresses announced to Internet: 170702336 Equivalent to 10 /8s, 44 /16s and 182 /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: 34881 Total AfriNIC prefixes after maximum aggregation: 6874 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 48624 Unique aggregates announced from the AfriNIC address blocks: 16358 AfriNIC Region origin ASes present in the Internet Routing Table: 1975 AfriNIC Prefixes per ASN: 24.62 AfriNIC Region origin ASes announcing only one prefix: 721 AfriNIC Region transit ASes present in the Internet Routing Table: 383 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: 1337 Number of AfriNIC addresses announced to Internet: 103767552 Equivalent to 6 /8s, 47 /16s and 94 /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 13822 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6180 834 600 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4400 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3908 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3686 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3160 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2929 863 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2508 516 1613 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 14300 40988 5352 AMAZON-02, US 11492 4770 322 786 CABLEONE, US 22773 4255 3083 368 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3275 4825 466 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3116 241 1748 USDA-1, US 174 3075 8766 794 COGENT-174, US 16625 3029 1296 2206 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 7404 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4035 3395 126 AKAMAI-ASN1, NL 9009 3945 371 2237 M247, RO 12389 3138 2313 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2517 180 1830 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1686 197 993 HOSTROYALE, IN 8452 1646 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 12387 3283 578 UNINET, MX 10620 3478 468 1087 Telmex Colombia S.A., CO 13999 2526 511 346 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1370 2430 259 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1272 371 23 Telefonica del Peru S.A.A., PE 11664 1247 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1064 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 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 1767 594 28 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1010 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 576 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 14300 40988 5352 AMAZON-02, US 9808 13822 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12387 3283 578 UNINET, MX 12479 7404 1711 149 UNI2-AS, ES 7545 6180 834 600 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4770 322 786 CABLEONE, US 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4400 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4255 3083 368 ASN-CXA-ALL-CCI-22773-RDC, US 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 13822 13705 CHINAMOBILE-CN China Mobile Communications Grou 8151 12387 11809 UNINET, MX 12479 7404 7255 UNI2-AS, ES 7545 6180 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4400 4376 FPT-AS-AP FPT Telecom Company, VN 9498 4477 4165 BBIL-AP BHARTI Airtel Ltd., IN 11492 4770 3984 CABLEONE, US 20940 4035 3909 AKAMAI-ASN1, NL 22773 4255 3887 ASN-CXA-ALL-CCI-22773-RDC, US 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 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 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, 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 /12:300 /13:583 /14:1203 /15:2127 /16:13784 /17:8216 /18:13489 /19:24699 /20:44276 /21:51889 /22:112658 /23:104488 /24:631316 /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 6609 12387 UNINET, MX 12479 6371 7404 UNI2-AS, ES 11492 3583 4770 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2651 4255 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2393 14300 AMAZON-02, US 30036 2307 2647 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3478 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) ---------------------------------------------- 1:2422 2:1564 3:945 4:10 5:4849 6:170 7:6 8:1527 9:6 11:172 12:1238 13:563 14:2651 15:402 16:303 17:387 18:908 20:575 21:4 22:188 23:8061 24:2700 25:2 27:2802 29:19 31:3339 32:31 33:1 34:81 35:271 36:4465 37:4539 38:9497 39:1107 40:472 41:4270 42:1952 43:2757 44:400 45:19097 46:5192 47:369 49:2083 50:2053 51:596 52:1592 54:359 55:1035 56:11 57:284 58:2290 59:1308 60:1189 61:2923 62:3085 63:1763 64:5658 65:2119 66:5144 67:3118 68:1357 69:4094 70:1035 71:634 72:2989 74:2835 75:1506 76:603 77:2763 78:1918 79:1752 80:2246 81:2141 82:3482 83:1476 84:1992 85:3532 86:1100 87:2147 88:1358 89:4514 90:815 91:8372 92:2817 93:2989 94:4147 95:4527 96:1495 97:312 98:949 99:755 100:71 101:1223 102:4200 103:32260 104:5446 105:786 106:894 107:2796 108:1209 109:4227 110:2248 111:3787 112:2707 113:1850 114:2071 115:2335 116:2083 117:3040 118:3042 119:1988 120:2296 121:1489 122:2810 123:2267 124:1654 125:2881 126:125 128:1602 129:965 130:1415 131:2183 132:793 133:462 134:1625 135:364 136:1492 137:1322 138:2817 139:1602 140:1639 141:1547 142:2155 143:2091 144:1277 145:629 146:2182 147:2141 148:2747 149:2941 150:1282 151:2626 152:2186 153:641 154:7789 155:2113 156:3172 157:1992 158:1441 159:2606 160:3642 161:1998 162:3970 163:2303 164:1954 165:2555 166:1564 167:2109 168:3816 169:783 170:5380 171:1059 172:4477 173:3418 174:906 175:1344 176:3741 177:4761 178:4297 179:2274 180:2738 181:4238 182:3750 183:2548 184:2081 185:21665 186:5349 187:4722 188:4377 189:4414 190:9719 191:1549 192:11408 193:9484 194:7823 195:5586 196:3298 197:3245 198:6246 199:8803 200:8189 201:6362 202:10485 203:10625 204:4628 205:3689 206:4478 207:3744 208:4265 209:5390 210:4744 211:2691 212:4856 213:3918 214:1029 215:52 216:6970 217:3364 218:1579 219:395 220:2194 221:1251 222:753 223:3071 End of report