IPv4 R&E Routing Table Report 21:10 GMT Tue 09 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: 1019695 Prefixes after maximum aggregation (per Origin AS): 393314 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504575 Number of IPv4 prefixes with a valid ROA: 602036 Number of IPv4 prefixes with an invalid ROA: 121 Number of IPv4 prefixes with no ROA: 417538 Total ASes present in the Internet Routing Table: 77601 Prefixes per ASN: 13.14 Origin-only ASes present in the Internet Routing Table: 66423 Origin ASes announcing only one prefix: 27137 Transit ASes present in the Internet Routing Table: 11178 Transit-only ASes present in the Internet Routing Table: 573 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: 935 Number of instances of unregistered ASNs: 976 Number of 32-bit ASNs allocated by the RIRs: 48170 Number of 32-bit ASNs visible in the Routing Table: 39430 Prefixes from 32-bit ASNs in the Routing Table: 218186 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: 439 Number of addresses announced to Internet: 3099803136 Equivalent to 184 /8s, 195 /16s and 62 /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: 333038 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 275338 Total APNIC prefixes after maximum aggregation: 80625 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 262509 Unique aggregates announced from the APNIC address blocks: 106238 APNIC Region origin ASes present in the Internet Routing Table: 14900 APNIC Prefixes per ASN: 17.62 APNIC Region origin ASes announcing only one prefix: 4556 APNIC Region transit ASes present in the Internet Routing Table: 1995 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: 752856576 Equivalent to 44 /8s, 223 /16s and 174 /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: 299343 Total ARIN prefixes after maximum aggregation: 134657 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 299392 Unique aggregates announced from the ARIN address blocks: 145719 ARIN Region origin ASes present in the Internet Routing Table: 19385 ARIN Prefixes per ASN: 15.44 ARIN Region origin ASes announcing only one prefix: 7101 ARIN Region transit ASes present in the Internet Routing Table: 1983 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: 5427 Number of ARIN addresses announced to Internet: 1336884480 Equivalent to 79 /8s, 175 /16s and 61 /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: 282437 Total RIPE prefixes after maximum aggregation: 139915 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283555 Unique aggregates announced from the RIPE address blocks: 183885 RIPE Region origin ASes present in the Internet Routing Table: 29119 RIPE Prefixes per ASN: 9.74 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 4053 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: 12862 Number of RIPE addresses announced to Internet: 735783424 Equivalent to 43 /8s, 219 /16s and 42 /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: 125713 Total LACNIC prefixes after maximum aggregation: 30523 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121649 Unique aggregates announced from the LACNIC address blocks: 49750 LACNIC Region origin ASes present in the Internet Routing Table: 11318 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2558 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: 170696960 Equivalent to 10 /8s, 44 /16s and 161 /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: 35929 Total AfriNIC prefixes after maximum aggregation: 6953 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 52150 Unique aggregates announced from the AfriNIC address blocks: 18601 AfriNIC Region origin ASes present in the Internet Routing Table: 1995 AfriNIC Prefixes per ASN: 26.14 AfriNIC Region origin ASes announcing only one prefix: 737 AfriNIC Region transit ASes present in the Internet Routing Table: 384 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: 103352320 Equivalent to 6 /8s, 41 /16s and 8 /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 13282 8729 118 CHINAMOBILE-CN China Mobile Communication 7545 6039 834 588 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4646 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4602 541 336 BBIL-AP BHARTI Airtel Ltd., IN 7552 4014 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3721 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3336 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3314 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 14182 37206 5396 AMAZON-02, US 22773 4779 3115 367 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 4862 488 GOOGLE-CLOUD-PLATFORM, US 749 3208 54760 2459 DNIC-AS-00749, US 16625 3001 1289 2188 AKAMAI-AS, US 36352 2815 229 914 AS-COLOCROSSING, US 30036 2664 367 305 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 7282 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3976 372 2274 M247, RO 20940 3974 3394 123 AKAMAI-ASN1, NL 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2541 181 1839 CDNEXT, GB 34984 2423 363 577 TELLCOM-AS, TR 8452 1685 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 12659 3293 584 UNINET, MX 10620 3457 463 1100 Telmex Colombia S.A., CO 13999 2509 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 1360 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1347 779 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1058 70 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1021 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 1926 368 14 RAYA-AS, EG 36992 1684 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 1047 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 557 82 3 KENET-AS, KE 15399 545 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 14182 37206 5396 AMAZON-02, US 9808 13282 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 12659 3293 584 UNINET, MX 12479 7282 1711 149 UNI2-AS, ES 7545 6039 834 588 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4779 3115 367 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 18403 4646 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4602 541 336 BBIL-AP BHARTI Airtel Ltd., IN 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 13282 13164 CHINAMOBILE-CN China Mobile Communications Grou 8151 12659 12075 UNINET, MX 12479 7282 7133 UNI2-AS, ES 7545 6039 5451 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4646 4622 FPT-AS-AP FPT Telecom Company, VN 22773 4779 4412 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4602 4266 BBIL-AP BHARTI Airtel Ltd., IN 7552 4014 3986 VIETEL-AS-AP Viettel Group, VN 20940 3974 3851 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 /16:13677 /17:8227 /18:13483 /19:24799 /20:44601 /21:52085 /22:113014 /23:105429 /24:640038 /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 6855 12659 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 3050 4779 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2421 14182 AMAZON-02, US 30036 2321 2664 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 2:1570 3:971 4:10 5:4936 6:190 7:6 8:1500 9:6 11:172 12:1230 13:547 14:2601 15:414 16:303 17:388 18:911 20:587 21:4 22:188 23:8135 24:2608 25:2 27:2817 29:19 31:3386 32:31 33:1 34:81 35:285 36:4598 37:4552 38:9902 39:1194 40:426 41:4432 42:2150 43:2849 44:405 45:19557 46:5105 47:386 49:2149 50:2057 51:597 52:1562 54:275 55:1119 56:11 57:303 58:2320 59:1328 60:1167 61:3060 62:3102 63:1747 64:5979 65:2120 66:5874 67:3240 68:1492 69:4199 70:1020 71:626 72:3026 74:2937 75:1519 76:596 77:2769 78:1921 79:1773 80:2300 81:2076 82:3843 83:1468 84:2033 85:3645 86:1106 87:2167 88:1347 89:4556 90:835 91:8430 92:2842 93:3023 94:4238 95:4546 96:1462 97:312 98:951 99:774 100:68 101:1327 102:4335 103:32217 104:5497 105:800 106:916 107:2808 108:1204 109:4237 110:2305 111:3912 112:2790 113:1891 114:2100 115:2305 116:2154 117:3133 118:3006 119:2063 120:2382 121:1510 122:2949 123:2294 124:1601 125:2905 126:125 128:1618 129:963 130:1520 131:2253 132:770 133:462 134:1650 135:525 136:1496 137:1340 138:2984 139:1602 140:1726 141:1554 142:2382 143:2122 144:1366 145:631 146:2192 147:2145 148:2792 149:2879 150:1308 151:2605 152:2278 153:856 154:9255 155:2268 156:4366 157:2239 158:1470 159:2705 160:3742 161:1993 162:4006 163:2330 164:1960 165:2622 166:1292 167:2147 168:3913 169:810 170:5422 171:1116 172:4536 173:3425 174:908 175:1343 176:3766 177:4704 178:4302 179:2276 180:2836 181:4323 182:3839 183:2634 184:2069 185:21699 186:5518 187:4764 188:4434 189:4496 190:9688 191:1529 192:11451 193:9512 194:7856 195:5620 196:3297 197:3191 198:6210 199:6100 200:8206 201:6390 202:10460 203:10586 204:4649 205:3741 206:4419 207:3917 208:4284 209:5448 210:4774 211:2678 212:4901 213:4027 214:1025 215:53 216:7084 217:3386 218:1596 219:404 220:2190 221:1288 222:777 223:3182 End of report