IPv4 R&E Routing Table Report 21:10 GMT Mon 08 Dec, 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: 1018962 Prefixes after maximum aggregation (per Origin AS): 393371 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504538 Number of IPv4 prefixes with a valid ROA: 600119 Number of IPv4 prefixes with an invalid ROA: 120 Number of IPv4 prefixes with no ROA: 418723 Total ASes present in the Internet Routing Table: 77602 Prefixes per ASN: 13.13 Origin-only ASes present in the Internet Routing Table: 66418 Origin ASes announcing only one prefix: 27137 Transit ASes present in the Internet Routing Table: 11184 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 17 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: 941 Number of instances of unregistered ASNs: 982 Number of 32-bit ASNs allocated by the RIRs: 48170 Number of 32-bit ASNs visible in the Routing Table: 39424 Prefixes from 32-bit ASNs in the Routing Table: 217523 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 438 Number of addresses announced to Internet: 3100039680 Equivalent to 184 /8s, 198 /16s and 218 /24s Percentage of available address space announced: 83.7 Percentage of allocated address space announced: 83.7 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: 333075 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274729 Total APNIC prefixes after maximum aggregation: 80744 APNIC Deaggregation factor: 3.40 Prefixes being announced from the APNIC address blocks: 262262 Unique aggregates announced from the APNIC address blocks: 106197 APNIC Region origin ASes present in the Internet Routing Table: 14903 APNIC Prefixes per ASN: 17.60 APNIC Region origin ASes announcing only one prefix: 4549 APNIC Region transit ASes present in the Internet Routing Table: 2002 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: 10466 Number of APNIC addresses announced to Internet: 752700416 Equivalent to 44 /8s, 221 /16s and 76 /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: 299240 Total ARIN prefixes after maximum aggregation: 134606 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298834 Unique aggregates announced from the ARIN address blocks: 145712 ARIN Region origin ASes present in the Internet Routing Table: 19387 ARIN Prefixes per ASN: 15.41 ARIN Region origin ASes announcing only one prefix: 7102 ARIN Region transit ASes present in the Internet Routing Table: 1988 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: 5426 Number of ARIN addresses announced to Internet: 1337365760 Equivalent to 79 /8s, 182 /16s and 149 /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: 282421 Total RIPE prefixes after maximum aggregation: 139894 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283572 Unique aggregates announced from the RIPE address blocks: 183917 RIPE Region origin ASes present in the Internet Routing Table: 29111 RIPE Prefixes per ASN: 9.74 RIPE Region origin ASes announcing only one prefix: 12064 RIPE Region transit ASes present in the Internet Routing Table: 4046 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: 12857 Number of RIPE addresses announced to Internet: 735821568 Equivalent to 43 /8s, 219 /16s and 191 /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: 125706 Total LACNIC prefixes after maximum aggregation: 30534 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121675 Unique aggregates announced from the LACNIC address blocks: 49727 LACNIC Region origin ASes present in the Internet Routing Table: 11322 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2559 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: 9318 Number of LACNIC addresses announced to Internet: 170617600 Equivalent to 10 /8s, 43 /16s and 107 /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: 35925 Total AfriNIC prefixes after maximum aggregation: 6953 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 52180 Unique aggregates announced from the AfriNIC address blocks: 18606 AfriNIC Region origin ASes present in the Internet Routing Table: 1997 AfriNIC Prefixes per ASN: 26.13 AfriNIC Region origin ASes announcing only one prefix: 739 AfriNIC Region transit ASes present in the Internet Routing Table: 389 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 64 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1357 Number of AfriNIC addresses announced to Internet: 103370240 Equivalent to 6 /8s, 41 /16s and 78 /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 13284 8729 118 CHINAMOBILE-CN China Mobile Communication 7545 6041 834 589 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4600 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4411 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4014 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3336 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3312 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 2952 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2515 275 1936 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 14281 37210 5410 AMAZON-02, US 22773 4779 3116 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 83 SHAW, CA 396982 3314 4862 488 GOOGLE-CLOUD-PLATFORM, US 749 3208 54760 2459 DNIC-AS-00749, US 16625 3001 1289 2188 AKAMAI-AS, US 36352 2823 229 918 AS-COLOCROSSING, US 174 2662 8768 846 COGENT-174, 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 7288 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3989 375 2284 M247, RO 20940 3980 3395 126 AKAMAI-ASN1, NL 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2542 181 1840 CDNEXT, GB 34984 2423 363 575 TELLCOM-AS, TR 8452 1686 1852 14 TE-AS TE-AS, EG 203020 1615 242 782 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 12653 3291 583 UNINET, MX 10620 3457 463 1100 Telmex Colombia S.A., CO 13999 2507 509 351 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1373 2431 267 Claro NXT Telecomunicacoes Ltda, BR 11664 1356 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1347 779 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1263 371 22 Telefonica del Peru S.A.A., PE 22884 1058 70 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 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 1925 368 14 RAYA-AS, EG 36992 1683 1509 399 ETISALAT-MISR, EG 24863 1258 389 20 LINKdotNET-AS, EG 36903 1249 554 96 MT-MPLS, MA 37069 1093 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1041 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 567 82 3 KENET-AS, KE 15399 550 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 14281 37210 5410 AMAZON-02, US 9808 13284 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 12653 3291 583 UNINET, MX 12479 7288 1711 149 UNI2-AS, ES 7545 6041 834 589 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4779 3116 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4600 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4411 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 13284 13166 CHINAMOBILE-CN China Mobile Communications Grou 8151 12653 12070 UNINET, MX 12479 7288 7139 UNI2-AS, ES 7545 6041 5452 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4779 4411 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4411 4387 FPT-AS-AP FPT Telecom Company, VN 9498 4600 4264 BBIL-AP BHARTI Airtel Ltd., IN 7552 4014 3986 VIETEL-AS-AP Viettel Group, VN 20940 3980 3854 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, 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 7018 ATT-INTERNET4, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 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 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /11:94 /12:298 /13:582 /14:1203 /15:2093 /16:13681 /17:8227 /18:13484 /19:24804 /20:44631 /21:52118 /22:113011 /23:105413 /24:639251 /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 6851 12653 UNINET, MX 12479 6218 7288 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 3049 4779 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2435 14281 AMAZON-02, US 30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3457 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) ---------------------------------------------- 1:2441 2:1568 3:974 4:10 5:4928 6:190 7:6 8:1500 9:6 11:172 12:1230 13:571 14:2600 15:414 16:303 17:389 18:913 20:587 21:4 22:188 23:8128 24:2609 25:2 27:2815 29:19 31:3389 32:31 33:1 34:81 35:285 36:4599 37:4553 38:9363 39:1193 40:447 41:4439 42:1949 43:2839 44:402 45:19527 46:5106 47:387 49:2149 50:2056 51:596 52:1567 54:289 55:1099 56:11 57:303 58:2290 59:1317 60:1167 61:3055 62:3099 63:1747 64:5965 65:2121 66:5879 67:3241 68:1491 69:4199 70:1020 71:623 72:3037 74:2939 75:1521 76:595 77:2769 78:1920 79:1787 80:2300 81:2073 82:3849 83:1462 84:2034 85:3643 86:1106 87:2169 88:1347 89:4575 90:840 91:8432 92:2853 93:3019 94:4228 95:4559 96:1466 97:312 98:951 99:773 100:68 101:1338 102:4327 103:32216 104:5493 105:799 106:916 107:2800 108:1206 109:4210 110:2302 111:3911 112:2790 113:1925 114:2099 115:2309 116:2154 117:3134 118:3011 119:2062 120:2382 121:1511 122:2948 123:2295 124:1600 125:2906 126:125 128:1617 129:964 130:1521 131:2266 132:769 133:462 134:1627 135:510 136:1498 137:1341 138:2983 139:1600 140:1725 141:1557 142:2339 143:2128 144:1355 145:629 146:2191 147:2142 148:2795 149:2886 150:1304 151:2623 152:2280 153:836 154:9260 155:2260 156:4368 157:2248 158:1471 159:2696 160:3740 161:1996 162:4009 163:2327 164:1960 165:2619 166:1295 167:2145 168:3915 169:806 170:5422 171:1115 172:4535 173:3414 174:908 175:1339 176:3768 177:4741 178:4301 179:2280 180:2836 181:4333 182:3839 183:2622 184:2070 185:21696 186:5516 187:4769 188:4444 189:4509 190:9694 191:1546 192:11453 193:9508 194:7859 195:5622 196:3297 197:3196 198:6213 199:6099 200:8206 201:6391 202:10461 203:10577 204:4649 205:3731 206:4408 207:3919 208:4284 209:5438 210:4772 211:2678 212:4900 213:4020 214:1029 215:53 216:7067 217:3387 218:1596 219:404 220:2190 221:1288 222:777 223:3181 End of report