IPv4 R&E Routing Table Report 21:10 GMT Wed 03 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: 1018361 Prefixes after maximum aggregation (per Origin AS): 393324 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504494 Number of IPv4 prefixes with a valid ROA: 597550 Number of IPv4 prefixes with an invalid ROA: 121 Number of IPv4 prefixes with no ROA: 420690 Total ASes present in the Internet Routing Table: 77566 Prefixes per ASN: 13.13 Origin-only ASes present in the Internet Routing Table: 66398 Origin ASes announcing only one prefix: 27098 Transit ASes present in the Internet Routing Table: 11168 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: 4.4 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 937 Number of instances of unregistered ASNs: 978 Number of 32-bit ASNs allocated by the RIRs: 48125 Number of 32-bit ASNs visible in the Routing Table: 39389 Prefixes from 32-bit ASNs in the Routing Table: 217242 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: 440 Number of addresses announced to Internet: 3100815616 Equivalent to 184 /8s, 210 /16s and 177 /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: 333129 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274633 Total APNIC prefixes after maximum aggregation: 80768 APNIC Deaggregation factor: 3.40 Prefixes being announced from the APNIC address blocks: 262014 Unique aggregates announced from the APNIC address blocks: 106334 APNIC Region origin ASes present in the Internet Routing Table: 14902 APNIC Prefixes per ASN: 17.58 APNIC Region origin ASes announcing only one prefix: 4537 APNIC Region transit ASes present in the Internet Routing Table: 2001 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10464 Number of APNIC addresses announced to Internet: 752921088 Equivalent to 44 /8s, 224 /16s and 170 /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: 298991 Total ARIN prefixes after maximum aggregation: 134654 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298690 Unique aggregates announced from the ARIN address blocks: 145594 ARIN Region origin ASes present in the Internet Routing Table: 19391 ARIN Prefixes per ASN: 15.40 ARIN Region origin ASes announcing only one prefix: 7108 ARIN Region transit ASes present in the Internet Routing Table: 1983 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: 5426 Number of ARIN addresses announced to Internet: 1337610240 Equivalent to 79 /8s, 186 /16s and 80 /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: 282496 Total RIPE prefixes after maximum aggregation: 139885 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283524 Unique aggregates announced from the RIPE address blocks: 183967 RIPE Region origin ASes present in the Internet Routing Table: 29094 RIPE Prefixes per ASN: 9.75 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 4049 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: 12832 Number of RIPE addresses announced to Internet: 736081408 Equivalent to 43 /8s, 223 /16s and 182 /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: 125808 Total LACNIC prefixes after maximum aggregation: 30483 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121793 Unique aggregates announced from the LACNIC address blocks: 49711 LACNIC Region origin ASes present in the Internet Routing Table: 11312 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2561 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: 9310 Number of LACNIC addresses announced to Internet: 170722816 Equivalent to 10 /8s, 45 /16s and 6 /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: 35496 Total AfriNIC prefixes after maximum aggregation: 6898 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 51899 Unique aggregates announced from the AfriNIC address blocks: 18508 AfriNIC Region origin ASes present in the Internet Routing Table: 1998 AfriNIC Prefixes per ASN: 25.98 AfriNIC Region origin ASes announcing only one prefix: 739 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: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1357 Number of AfriNIC addresses announced to Internet: 103250176 Equivalent to 6 /8s, 39 /16s and 121 /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 13264 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6047 835 593 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4589 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4398 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4012 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3712 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3331 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3315 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2946 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2663 168 596 LCS-AS-AP LARUS Limited, HK 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 14269 37209 5403 AMAZON-02, US 22773 4778 3099 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 3306 4861 484 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2992 1286 2184 AKAMAI-AS, US 36352 2818 231 917 AS-COLOCROSSING, US 30036 2654 366 338 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 7289 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3990 375 2280 M247, RO 20940 3988 3395 126 AKAMAI-ASN1, NL 12389 3154 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2537 180 1835 CDNEXT, GB 34984 2423 363 577 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 12688 3301 571 UNINET, MX 10620 3457 463 1100 Telmex Colombia S.A., CO 13999 2504 509 348 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1372 2432 263 Claro NXT Telecomunicacoes Ltda, BR 11664 1351 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1344 778 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1057 70 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 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 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1054 521 33 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 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 14269 37209 5403 AMAZON-02, US 9808 13264 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12688 3301 571 UNINET, MX 12479 7289 1711 149 UNI2-AS, ES 7545 6047 835 593 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4778 3099 367 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4589 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4398 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 13264 13144 CHINAMOBILE-CN China Mobile Communications Grou 8151 12688 12117 UNINET, MX 12479 7289 7140 UNI2-AS, ES 7545 6047 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4778 4411 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4398 4374 FPT-AS-AP FPT Telecom Company, VN 9498 4589 4253 BBIL-AP BHARTI Airtel Ltd., IN 7552 4012 3984 VIETEL-AS-AP Viettel Group, VN 20940 3988 3862 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 /15:2095 /16:13684 /17:8231 /18:13488 /19:24799 /20:44601 /21:52094 /22:113035 /23:105346 /24:638739 /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 6867 12688 UNINET, MX 12479 6219 7289 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 3052 4778 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2429 14269 AMAZON-02, US 30036 2311 2654 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) ---------------------------------------------- 1:2438 2:1572 3:973 4:10 5:4942 6:189 7:6 8:1500 9:6 11:172 12:1231 13:571 14:2611 15:414 16:303 17:388 18:913 20:586 21:4 22:188 23:8131 24:2560 25:2 27:2812 29:19 31:3387 32:31 33:1 34:81 35:286 36:4585 37:4565 38:9374 39:1185 40:445 41:4452 42:1954 43:2836 44:400 45:19490 46:5103 47:386 49:2152 50:2050 51:597 52:1567 54:289 55:1103 56:11 57:303 58:2295 59:1315 60:1166 61:3050 62:3093 63:1744 64:5958 65:2129 66:5921 67:3239 68:1497 69:4186 70:1024 71:627 72:3039 74:2928 75:1516 76:599 77:2771 78:1916 79:1783 80:2302 81:2098 82:3830 83:1458 84:2030 85:3649 86:1105 87:2164 88:1341 89:4567 90:840 91:8443 92:2841 93:3013 94:4222 95:4564 96:1450 97:312 98:953 99:773 100:68 101:1200 102:4324 103:32259 104:5521 105:798 106:906 107:2806 108:1200 109:4254 110:2302 111:3907 112:2780 113:1923 114:2094 115:2299 116:2144 117:3127 118:3036 119:2061 120:2376 121:1513 122:2942 123:2296 124:1602 125:2900 126:125 128:1615 129:964 130:1516 131:2263 132:771 133:462 134:1619 135:490 136:1499 137:1339 138:2905 139:1601 140:1725 141:1551 142:2347 143:2141 144:1352 145:630 146:2190 147:2148 148:2787 149:2881 150:1303 151:2622 152:2268 153:830 154:9150 155:2257 156:4375 157:2229 158:1468 159:2686 160:3750 161:1991 162:3995 163:2327 164:1962 165:2607 166:1301 167:2150 168:3842 169:804 170:5455 171:1118 172:4509 173:3418 174:911 175:1343 176:3773 177:4741 178:4300 179:2291 180:2836 181:4313 182:3838 183:2601 184:2055 185:21709 186:5509 187:4766 188:4448 189:4508 190:9708 191:1585 192:11452 193:9505 194:7856 195:5609 196:3279 197:3199 198:6235 199:6095 200:8207 201:6382 202:10444 203:10594 204:4643 205:3732 206:4415 207:3906 208:4273 209:5448 210:4774 211:2676 212:4896 213:4018 214:1032 215:53 216:7084 217:3390 218:1583 219:404 220:2191 221:1286 222:776 223:3166 End of report