IPv4 R&E Routing Table Report 21:10 GMT Sat 08 Nov, 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: 1011439 Prefixes after maximum aggregation (per Origin AS): 391919 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 501076 Number of IPv4 prefixes with a valid ROA: 585648 Number of IPv4 prefixes with an invalid ROA: 132 Number of IPv4 prefixes with no ROA: 425658 Total ASes present in the Internet Routing Table: 77471 Prefixes per ASN: 13.06 Origin-only ASes present in the Internet Routing Table: 66323 Origin ASes announcing only one prefix: 27112 Transit ASes present in the Internet Routing Table: 11148 Transit-only ASes present in the Internet Routing Table: 556 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 ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 933 Number of instances of unregistered ASNs: 962 Number of 32-bit ASNs allocated by the RIRs: 47936 Number of 32-bit ASNs visible in the Routing Table: 39249 Prefixes from 32-bit ASNs in the Routing Table: 214700 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: 418 Number of addresses announced to Internet: 3102378240 Equivalent to 184 /8s, 234 /16s and 137 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 331810 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270847 Total APNIC prefixes after maximum aggregation: 80483 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 260623 Unique aggregates announced from the APNIC address blocks: 106285 APNIC Region origin ASes present in the Internet Routing Table: 14848 APNIC Prefixes per ASN: 17.55 APNIC Region origin ASes announcing only one prefix: 4543 APNIC Region transit ASes present in the Internet Routing Table: 1999 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: 10407 Number of APNIC addresses announced to Internet: 748361472 Equivalent to 44 /8s, 155 /16s and 23 /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: 297995 Total ARIN prefixes after maximum aggregation: 133788 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 298188 Unique aggregates announced from the ARIN address blocks: 145334 ARIN Region origin ASes present in the Internet Routing Table: 19378 ARIN Prefixes per ASN: 15.39 ARIN Region origin ASes announcing only one prefix: 7102 ARIN Region transit ASes present in the Internet Routing Table: 1985 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5411 Number of ARIN addresses announced to Internet: 1344901888 Equivalent to 80 /8s, 41 /16s and 147 /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: 281334 Total RIPE prefixes after maximum aggregation: 139638 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 281955 Unique aggregates announced from the RIPE address blocks: 182457 RIPE Region origin ASes present in the Internet Routing Table: 29084 RIPE Prefixes per ASN: 9.69 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 4035 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12794 Number of RIPE addresses announced to Internet: 735322112 Equivalent to 43 /8s, 212 /16s and 32 /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: 125152 Total LACNIC prefixes after maximum aggregation: 30458 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121208 Unique aggregates announced from the LACNIC address blocks: 49551 LACNIC Region origin ASes present in the Internet Routing Table: 11309 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2555 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: 9295 Number of LACNIC addresses announced to Internet: 170605312 Equivalent to 10 /8s, 43 /16s and 59 /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: 35178 Total AfriNIC prefixes after maximum aggregation: 6911 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 49046 Unique aggregates announced from the AfriNIC address blocks: 17079 AfriNIC Region origin ASes present in the Internet Routing Table: 1983 AfriNIC Prefixes per ASN: 24.73 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1342 Number of AfriNIC addresses announced to Internet: 102963968 Equivalent to 6 /8s, 35 /16s and 27 /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 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6093 833 590 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4519 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4456 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3980 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3717 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3307 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2938 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2489 273 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14310 37221 5392 AMAZON-02, US 11492 4781 317 802 CABLEONE, US 22773 4626 3107 405 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3686 1320 82 SHAW, CA 396982 3290 4827 474 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 3019 1293 2194 AKAMAI-AS, US 36352 2841 231 919 AS-COLOCROSSING, US 30036 2655 365 299 MEDIACOM-ENTERPRISE-BUSINESS, 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 7283 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4015 3395 127 AKAMAI-ASN1, NL 9009 4011 377 2278 M247, RO 12389 3143 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2539 179 1829 CDNEXT, GB 34984 2417 363 576 TELLCOM-AS, TR 8452 1667 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1459 166 840 HOSTROYALE, IN 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 12506 3297 576 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2504 511 350 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1375 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1306 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1271 371 23 Telefonica del Peru S.A.A., PE 22884 1061 70 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 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 1788 594 28 RAYA-AS, EG 36992 1679 1509 397 ETISALAT-MISR, EG 24863 1265 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1165 100 70 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 998 521 44 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 545 82 3 KENET-AS, KE 15399 543 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 14310 37221 5392 AMAZON-02, US 9808 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12506 3297 576 UNINET, MX 12479 7283 1711 149 UNI2-AS, ES 7545 6093 833 590 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4781 317 802 CABLEONE, US 22773 4626 3107 405 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4519 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4456 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 13392 13275 CHINAMOBILE-CN China Mobile Communications Grou 8151 12506 11930 UNINET, MX 12479 7283 7134 UNI2-AS, ES 7545 6093 5503 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4456 4432 FPT-AS-AP FPT Telecom Company, VN 22773 4626 4221 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4519 4205 BBIL-AP BHARTI Airtel Ltd., IN 11492 4781 3979 CABLEONE, US 7552 3980 3952 VIETEL-AS-AP Viettel Group, VN 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 3737 AS-PTD, 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /8:18 /9:14 /10:41 /11:94 /12:298 /13:581 /14:1199 /15:2094 /16:13670 /17:8205 /18:13479 /19:24716 /20:44413 /21:52028 /22:112657 /23:105048 /24:632883 /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 6715 12506 UNINET, MX 12479 6227 7283 UNI2-AS, ES 11492 3594 4781 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3475 3686 SHAW, CA 22773 2976 4626 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2450 14310 AMAZON-02, US 30036 2312 2655 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 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) ---------------------------------------------- 1:2423 2:1558 3:970 4:10 5:4932 6:189 7:6 8:1507 9:6 11:172 12:1230 13:561 14:2648 15:405 16:303 17:385 18:910 20:583 21:4 22:188 23:8100 24:2610 25:2 27:2810 29:19 31:3360 32:31 33:1 34:81 35:275 36:4502 37:4578 38:9348 39:1174 40:467 41:4352 42:1978 43:2782 44:405 45:19135 46:5207 47:364 49:2148 50:2057 51:596 52:1625 54:357 55:1096 56:11 57:291 58:2291 59:1310 60:1188 61:2983 62:3113 63:1759 64:5901 65:2127 66:5899 67:3247 68:1488 69:4145 70:1030 71:634 72:2997 74:2898 75:1515 76:600 77:2773 78:1927 79:1791 80:2278 81:2136 82:3599 83:1468 84:2009 85:3584 86:1107 87:2146 88:1365 89:4508 90:831 91:8406 92:2829 93:2987 94:4140 95:4562 96:1484 97:312 98:951 99:762 100:68 101:1338 102:4225 103:32211 104:5466 105:786 106:912 107:2796 108:1199 109:4215 110:2245 111:3861 112:2756 113:1881 114:2088 115:2289 116:2107 117:3095 118:3057 119:2016 120:2342 121:1506 122:2846 123:2273 124:1595 125:2898 126:125 128:1609 129:963 130:1497 131:2225 132:780 133:461 134:1632 135:365 136:1491 137:1333 138:2839 139:1602 140:1694 141:1573 142:2229 143:2124 144:1333 145:633 146:2190 147:2117 148:2779 149:2840 150:1279 151:2649 152:2268 153:655 154:8058 155:2220 156:3240 157:2099 158:1405 159:2635 160:3768 161:2000 162:3998 163:2329 164:1948 165:2549 166:1320 167:2117 168:3815 169:785 170:5445 171:1066 172:4519 173:3429 174:905 175:1346 176:3758 177:4725 178:4302 179:2278 180:2747 181:4315 182:3802 183:2596 184:2081 185:21692 186:5376 187:4733 188:4379 189:4450 190:9697 191:1536 192:11453 193:9505 194:7821 195:5590 196:3289 197:3229 198:6215 199:6083 200:8165 201:6370 202:10491 203:10590 204:4631 205:3711 206:4408 207:3869 208:4260 209:5378 210:4748 211:2645 212:4890 213:3980 214:1037 215:54 216:7149 217:3356 218:1574 219:400 220:2196 221:1268 222:764 223:3113 End of report