IPv4 R&E Routing Table Report 21:10 GMT Fri 05 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: 1018541 Prefixes after maximum aggregation (per Origin AS): 393349 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504182 Number of IPv4 prefixes with a valid ROA: 598415 Number of IPv4 prefixes with an invalid ROA: 122 Number of IPv4 prefixes with no ROA: 420004 Total ASes present in the Internet Routing Table: 77593 Prefixes per ASN: 13.13 Origin-only ASes present in the Internet Routing Table: 66417 Origin ASes announcing only one prefix: 27127 Transit ASes present in the Internet Routing Table: 11176 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 18 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: 48152 Number of 32-bit ASNs visible in the Routing Table: 39426 Prefixes from 32-bit ASNs in the Routing Table: 217290 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 436 Number of addresses announced to Internet: 3100077824 Equivalent to 184 /8s, 199 /16s and 111 /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: 333358 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274468 Total APNIC prefixes after maximum aggregation: 80727 APNIC Deaggregation factor: 3.40 Prefixes being announced from the APNIC address blocks: 261996 Unique aggregates announced from the APNIC address blocks: 105975 APNIC Region origin ASes present in the Internet Routing Table: 14904 APNIC Prefixes per ASN: 17.58 APNIC Region origin ASes announcing only one prefix: 4550 APNIC Region transit ASes present in the Internet Routing Table: 2000 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10467 Number of APNIC addresses announced to Internet: 752673280 Equivalent to 44 /8s, 220 /16s and 226 /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: 299284 Total ARIN prefixes after maximum aggregation: 134625 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298976 Unique aggregates announced from the ARIN address blocks: 145744 ARIN Region origin ASes present in the Internet Routing Table: 19390 ARIN Prefixes per ASN: 15.42 ARIN Region origin ASes announcing only one prefix: 7102 ARIN Region transit ASes present in the Internet Routing Table: 1980 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: 5432 Number of ARIN addresses announced to Internet: 1337498112 Equivalent to 79 /8s, 184 /16s and 154 /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: 282533 Total RIPE prefixes after maximum aggregation: 139947 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283594 Unique aggregates announced from the RIPE address blocks: 184031 RIPE Region origin ASes present in the Internet Routing Table: 29114 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: 4054 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: 12861 Number of RIPE addresses announced to Internet: 735812352 Equivalent to 43 /8s, 219 /16s and 155 /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: 125787 Total LACNIC prefixes after maximum aggregation: 30521 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121749 Unique aggregates announced from the LACNIC address blocks: 49740 LACNIC Region origin ASes present in the Internet Routing Table: 11320 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2677 LACNIC Region transit ASes present in the Internet Routing Table: 2565 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: 9313 Number of LACNIC addresses announced to Internet: 170687232 Equivalent to 10 /8s, 44 /16s and 123 /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: 35528 Total AfriNIC prefixes after maximum aggregation: 6890 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 51789 Unique aggregates announced from the AfriNIC address blocks: 18314 AfriNIC Region origin ASes present in the Internet Routing Table: 1993 AfriNIC Prefixes per ASN: 25.99 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 387 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: 1353 Number of AfriNIC addresses announced to Internet: 103243776 Equivalent to 6 /8s, 39 /16s and 96 /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 13288 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6047 835 593 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4598 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4403 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4012 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3709 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3337 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3315 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2706 847 483 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 14283 37210 5408 AMAZON-02, US 22773 4774 3115 372 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 3312 4861 486 GOOGLE-CLOUD-PLATFORM, US 749 3208 54760 2459 DNIC-AS-00749, US 16625 3001 1289 2188 AKAMAI-AS, US 36352 2818 231 916 AS-COLOCROSSING, US 174 2664 8767 841 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 7282 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 2540 180 1838 CDNEXT, GB 34984 2424 363 576 TELLCOM-AS, TR 8452 1662 1852 14 TE-AS TE-AS, EG 203020 1614 241 782 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 12652 3291 583 UNINET, MX 10620 3458 463 1101 Telmex Colombia S.A., CO 13999 2508 509 352 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 1352 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1344 777 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1265 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 1924 368 14 RAYA-AS, EG 36992 1681 1509 399 ETISALAT-MISR, EG 24863 1260 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1093 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1036 519 30 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 15399 547 57 58 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 14283 37210 5408 AMAZON-02, US 9808 13288 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12652 3291 583 UNINET, MX 12479 7282 1711 149 UNI2-AS, ES 7545 6047 835 593 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4774 3115 372 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4598 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4403 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 13288 13168 CHINAMOBILE-CN China Mobile Communications Grou 8151 12652 12069 UNINET, MX 12479 7282 7133 UNI2-AS, ES 7545 6047 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4774 4402 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4403 4379 FPT-AS-AP FPT Telecom Company, VN 9498 4598 4262 BBIL-AP BHARTI Airtel Ltd., IN 7552 4012 3984 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 /15:2094 /16:13680 /17:8225 /18:13480 /19:24802 /20:44612 /21:52095 /22:113052 /23:105432 /24:638820 /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 6852 12652 UNINET, MX 12479 6212 7282 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 3049 4774 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2435 14283 AMAZON-02, US 30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3458 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) ---------------------------------------------- 1:2444 2:1569 3:977 4:10 5:4931 6:190 7:6 8:1498 9:6 11:172 12:1229 13:571 14:2603 15:414 16:303 17:388 18:913 20:587 21:4 22:188 23:8129 24:2609 25:2 27:2813 29:19 31:3390 32:31 33:1 34:81 35:285 36:4596 37:4557 38:9356 39:1193 40:426 41:4426 42:1949 43:2842 44:397 45:19471 46:5107 47:386 49:2149 50:2057 51:597 52:1567 54:289 55:1102 56:11 57:304 58:2291 59:1318 60:1166 61:3055 62:3099 63:1743 64:5963 65:2127 66:5909 67:3247 68:1496 69:4209 70:1022 71:627 72:3043 74:2940 75:1520 76:600 77:2771 78:1917 79:1783 80:2303 81:2098 82:3834 83:1462 84:2035 85:3644 86:1105 87:2171 88:1347 89:4574 90:838 91:8446 92:2851 93:3018 94:4226 95:4564 96:1466 97:312 98:951 99:773 100:68 101:1339 102:4317 103:32212 104:5524 105:790 106:912 107:2807 108:1202 109:4254 110:2303 111:3916 112:2790 113:1925 114:2098 115:2306 116:2151 117:3134 118:3012 119:2061 120:2382 121:1513 122:2750 123:2296 124:1604 125:2890 126:125 128:1620 129:963 130:1519 131:2267 132:770 133:462 134:1626 135:493 136:1484 137:1342 138:2911 139:1599 140:1725 141:1550 142:2343 143:2137 144:1361 145:628 146:2189 147:2143 148:2793 149:2884 150:1303 151:2617 152:2296 153:835 154:9168 155:2261 156:4239 157:2235 158:1475 159:2693 160:3749 161:1993 162:4009 163:2325 164:1965 165:2619 166:1306 167:2153 168:3883 169:804 170:5452 171:1110 172:4529 173:3424 174:908 175:1339 176:3777 177:4734 178:4302 179:2289 180:2835 181:4340 182:3839 183:2615 184:2070 185:21692 186:5515 187:4783 188:4439 189:4507 190:9704 191:1559 192:11436 193:9511 194:7851 195:5621 196:3293 197:3193 198:6221 199:6094 200:8203 201:6389 202:10456 203:10590 204:4644 205:3720 206:4404 207:3918 208:4280 209:5452 210:4773 211:2679 212:4894 213:4017 214:1028 215:53 216:7084 217:3391 218:1593 219:404 220:2192 221:1288 222:776 223:3183 End of report