IPv4 R&E Routing Table Report 21:10 GMT Sun 31 Aug, 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: 997005 Prefixes after maximum aggregation (per Origin AS): 387209 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492088 Number of IPv4 prefixes with a valid ROA: 566457 Number of IPv4 prefixes with an invalid ROA: 152 Number of IPv4 prefixes with no ROA: 430396 Total ASes present in the Internet Routing Table: 77247 Prefixes per ASN: 12.91 Origin-only ASes present in the Internet Routing Table: 66166 Origin ASes announcing only one prefix: 27024 Transit ASes present in the Internet Routing Table: 11081 Transit-only ASes present in the Internet Routing Table: 558 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 (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1049 Number of instances of unregistered ASNs: 1078 Number of 32-bit ASNs allocated by the RIRs: 47304 Number of 32-bit ASNs visible in the Routing Table: 38886 Prefixes from 32-bit ASNs in the Routing Table: 208902 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: 451 Number of addresses announced to Internet: 3107116800 Equivalent to 185 /8s, 50 /16s and 215 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 324944 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265161 Total APNIC prefixes after maximum aggregation: 78795 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 255648 Unique aggregates announced from the APNIC address blocks: 105125 APNIC Region origin ASes present in the Internet Routing Table: 14773 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4502 APNIC Region transit ASes present in the Internet Routing Table: 1982 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10318 Number of APNIC addresses announced to Internet: 750026496 Equivalent to 44 /8s, 180 /16s and 127 /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: 292944 Total ARIN prefixes after maximum aggregation: 133227 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295156 Unique aggregates announced from the ARIN address blocks: 142467 ARIN Region origin ASes present in the Internet Routing Table: 19287 ARIN Prefixes per ASN: 15.30 ARIN Region origin ASes announcing only one prefix: 7064 ARIN Region transit ASes present in the Internet Routing Table: 1981 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: 5313 Number of ARIN addresses announced to Internet: 1349491968 Equivalent to 80 /8s, 111 /16s and 157 /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: 278457 Total RIPE prefixes after maximum aggregation: 137464 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277668 Unique aggregates announced from the RIPE address blocks: 179343 RIPE Region origin ASes present in the Internet Routing Table: 29043 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12095 RIPE Region transit ASes present in the Internet Routing Table: 3989 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 48 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12680 Number of RIPE addresses announced to Internet: 732206592 Equivalent to 43 /8s, 164 /16s and 150 /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: 124326 Total LACNIC prefixes after maximum aggregation: 30224 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 120582 Unique aggregates announced from the LACNIC address blocks: 49454 LACNIC Region origin ASes present in the Internet Routing Table: 11285 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2648 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: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9251 Number of LACNIC addresses announced to Internet: 170649600 Equivalent to 10 /8s, 43 /16s and 232 /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: 35068 Total AfriNIC prefixes after maximum aggregation: 6805 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47499 Unique aggregates announced from the AfriNIC address blocks: 15312 AfriNIC Region origin ASes present in the Internet Routing Table: 1961 AfriNIC Prefixes per ASN: 24.22 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1324 Number of AfriNIC addresses announced to Internet: 104497408 Equivalent to 6 /8s, 58 /16s and 129 /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 12916 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4382 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3943 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3663 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2918 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2170 427 183 TATACOMM-AS TATA Communications formerly 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 14111 40856 5402 AMAZON-02, US 11492 4744 315 801 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3651 1320 82 SHAW, CA 22773 3351 3034 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3218 3858 436 GOOGLE-CLOUD-PLATFORM, US 174 3165 8759 840 COGENT-174, US 16625 3046 1296 2210 AKAMAI-AS, US 4155 2958 230 1738 USDA-1, 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 7505 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3842 364 2179 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2369 169 1725 CDNEXT, GB 203020 1835 221 843 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 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 12287 3249 577 UNINET, MX 10620 3486 472 1048 Telmex Colombia S.A., CO 13999 2532 511 347 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1202 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1177 371 22 Telefonica del Peru S.A.A., PE 22884 1058 70 381 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2487 55 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 1793 660 28 RAYA-AS, EG 29571 1498 94 37 ORANGE-COTE-IVOIRE, CI 36992 1421 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1243 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 972 521 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 553 82 3 KENET-AS, KE 15399 548 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 14111 40856 5402 AMAZON-02, US 9808 12916 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12287 3249 577 UNINET, MX 12479 7505 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4744 315 801 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4382 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4030 3395 127 AKAMAI-ASN1, NL 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 12916 12802 CHINAMOBILE-CN China Mobile Communications Grou 8151 12287 11710 UNINET, MX 12479 7505 7355 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4382 4357 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4744 3943 CABLEONE, US 7552 3943 3916 VIETEL-AS-AP Viettel Group, VN 20940 4030 3903 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, 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 /8:16 /9:14 /10:41 /11:92 /12:298 /13:580 /14:1209 /15:2149 /16:13767 /17:8206 /18:13470 /19:24577 /20:44300 /21:51922 /22:112358 /23:103383 /24:620622 /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 6499 12287 UNINET, MX 12479 6456 7505 UNI2-AS, ES 11492 3560 4744 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3448 3651 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2502 3351 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2385 14111 AMAZON-02, US 30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2206 3486 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) ---------------------------------------------- 1:2415 2:1539 3:922 4:10 5:4825 6:156 7:6 8:1539 9:4 11:172 12:1253 13:504 14:2602 15:393 16:286 17:386 18:902 20:567 21:4 22:188 23:7881 24:2710 25:2 27:2816 29:19 31:3357 32:29 33:1 34:81 35:259 36:4292 37:4523 38:9372 39:993 40:266 41:4287 42:1941 43:2691 44:384 45:18741 46:5125 47:342 49:1987 50:2066 51:591 52:1597 54:359 55:1110 56:11 57:284 58:2245 59:1279 60:1182 61:2866 62:3036 63:1783 64:5604 65:2130 66:4826 67:3101 68:1067 69:3909 70:1030 71:636 72:2853 74:2816 75:1509 76:601 77:2776 78:1919 79:1745 80:2227 81:2092 82:3275 83:1450 84:1924 85:3490 86:1127 87:2131 88:1354 89:4472 90:792 91:8426 92:2772 93:2986 94:4147 95:4451 96:1469 97:310 98:949 99:723 100:71 101:1215 102:4012 103:32302 104:5320 105:762 106:876 107:2658 108:1236 109:4188 110:2228 111:3578 112:2473 113:1828 114:1980 115:2234 116:2073 117:2701 118:3023 119:1921 120:2205 121:1336 122:2809 123:2235 124:1657 125:2882 126:91 128:1594 129:965 130:1296 131:2160 132:782 133:459 134:1622 135:366 136:1479 137:1313 138:2828 139:1594 140:1618 141:1543 142:1905 143:2005 144:1204 145:605 146:2184 147:2132 148:2713 149:2911 150:1248 151:2394 152:2114 153:629 154:7184 155:1966 156:3097 157:1950 158:1473 159:2545 160:3601 161:1942 162:3907 163:2291 164:1905 165:2522 166:1553 167:2067 168:3838 169:783 170:5252 171:996 172:4257 173:3403 174:904 175:1319 176:3790 177:4846 178:4020 179:2291 180:2592 181:4188 182:3625 183:2241 184:2073 185:21636 186:5291 187:4610 188:4307 189:4333 190:9434 191:1531 192:11389 193:9486 194:7788 195:5660 196:3293 197:3225 198:6235 199:8647 200:8209 201:6390 202:10421 203:10661 204:4597 205:3685 206:4531 207:3655 208:4296 209:5221 210:4724 211:2651 212:4634 213:3840 214:1040 215:51 216:6838 217:3298 218:1452 219:392 220:2150 221:1210 222:749 223:2814 End of report