IPv4 R&E Routing Table Report 23:05 GMT Mon 18 Apr, 2022 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 879982 Prefixes after maximum aggregation (per Origin AS): 334711 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429500 Number of IPv4 prefixes with a valid ROA: 314586 Number of IPv4 prefixes with an invalid ROA: 1186 Number of IPv4 prefixes with no ROA: 564210 Total ASes present in the Internet Routing Table: 72799 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62507 Origin ASes announcing only one prefix: 25692 Transit ASes present in the Internet Routing Table: 10292 Transit-only ASes present in the Internet Routing Table: 369 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 878 Number of instances of unregistered ASNs: 883 Number of 32-bit ASNs allocated by the RIRs: 39125 Number of 32-bit ASNs visible in the Routing Table: 32433 Prefixes from 32-bit ASNs in the Routing Table: 152612 Number of bogon 32-bit ASNs visible in the Routing Table: 17 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 517 Number of addresses announced to Internet: 3066383872 Equivalent to 182 /8s, 197 /16s and 78 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 295647 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228891 Total APNIC prefixes after maximum aggregation: 65924 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223769 Unique aggregates announced from the APNIC address blocks: 94528 APNIC Region origin ASes present in the Internet Routing Table: 12476 APNIC Prefixes per ASN: 17.94 APNIC Region origin ASes announcing only one prefix: 3543 APNIC Region transit ASes present in the Internet Routing Table: 1701 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7739 Number of APNIC addresses announced to Internet: 773335808 Equivalent to 46 /8s, 24 /16s and 43 /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, 131072-151865 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: 259280 Total ARIN prefixes after maximum aggregation: 119346 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259415 Unique aggregates announced from the ARIN address blocks: 124353 ARIN Region origin ASes present in the Internet Routing Table: 18924 ARIN Prefixes per ASN: 13.71 ARIN Region origin ASes announcing only one prefix: 6897 ARIN Region transit ASes present in the Internet Routing Table: 1877 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4431 Number of ARIN addresses announced to Internet: 1295089408 Equivalent to 77 /8s, 49 /16s and 127 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 248873 Total RIPE prefixes after maximum aggregation: 115845 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246212 Unique aggregates announced from the RIPE address blocks: 150366 RIPE Region origin ASes present in the Internet Routing Table: 28090 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12037 RIPE Region transit ASes present in the Internet Routing Table: 3999 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10671 Number of RIPE addresses announced to Internet: 714089216 Equivalent to 42 /8s, 144 /16s and 35 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 114197 Total LACNIC prefixes after maximum aggregation: 27464 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 114089 Unique aggregates announced from the LACNIC address blocks: 48151 LACNIC Region origin ASes present in the Internet Routing Table: 10945 LACNIC Prefixes per ASN: 10.42 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2217 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8642 Number of LACNIC addresses announced to Internet: 176239616 Equivalent to 10 /8s, 129 /16s and 52 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 27863 Total AfriNIC prefixes after maximum aggregation: 5460 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35980 Unique aggregates announced from the AfriNIC address blocks: 11678 AfriNIC Region origin ASes present in the Internet Routing Table: 1616 AfriNIC Prefixes per ASN: 22.26 AfriNIC Region origin ASes announcing only one prefix: 558 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 950 Number of AfriNIC addresses announced to Internet: 107328256 Equivalent to 6 /8s, 101 /16s and 179 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9218 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5910 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3496 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3424 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2395 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2130 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2115 429 197 TATACOMM-AS TATA Communications formerl 24560 2047 854 380 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6210 10268 2702 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3619 1855 2553 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2609 373 149 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2254 3042 494 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6799 1730 147 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3912 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2899 2273 906 ROSTELECOM-AS, RU 6849 2761 355 21 UKRTELNET, UA 9009 2464 245 1276 M247, GB 34984 2236 357 632 TELLCOM-AS, TR 58224 1803 931 602 TCI, IR 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10560 3392 560 Uninet S.A. de C.V., MX 10620 3467 518 757 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1736 294 473 Mega Cable, S.A. de C.V., MX 6503 1454 355 524 Axtel, S.A.B. de C.V., MX 28573 1385 2333 253 CLARO S.A., BR 3816 1254 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1083 369 21 Telefonica del Peru S.A.A., PE 11664 1022 191 446 Techtel LMDS Comunicaciones Interactiva 11172 960 133 63 Alestra, S. de R.L. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1663 393 21 LINKdotNET-AS, EG 24835 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 902 65 59 ORANGE-COTE-IVOIRE, CI 36935 772 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 520 51 35 WANANCHI-, KE 37342 468 32 1 MOVITEL, MZ 23889 421 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10560 3392 560 Uninet S.A. de C.V., MX 9808 9218 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6799 1730 147 UNI2-AS, ES 16509 6210 10268 2702 AMAZON-02, US 7545 5910 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3912 3360 192 AKAMAI-ASN1, NL 7155 3900 264 31 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9218 9177 CHINAMOBILE-CN China Mobile Communications Grou 12479 6799 6652 UNI2-AS, ES 7545 5910 5213 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4474 3784 CABLEONE, US 20940 3912 3720 AKAMAI-ASN1, NL 7552 3607 3588 VIETEL-AS-AP Viettel Group, VN 22773 3931 3573 ASN-CXA-ALL-CCI-22773-RDC, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 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 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 41.57.124.0/24 Origin: 37442 UNASSIGNED 41.57.124.0/24 Transit: 37204 TELONE, ZW Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:303 /13:588 /14:1200 /15:2093 /16:13504 /17:8176 /18:13752 /19:24827 /20:42313 /21:50859 /22:106993 /23:94211 /24:520987 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5780 6799 UNI2-AS, ES 8151 4218 10560 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2936 3931 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2623 2761 UKRTELNET, UA 30036 2265 2609 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1928 2:1035 3:154 4:7 5:3790 6:103 7:5 8:1525 9:1 11:172 12:1702 13:294 14:2374 15:192 16:45 17:381 18:156 20:194 21:4 22:188 23:5599 24:2274 25:4 27:2595 29:19 31:2422 32:96 34:1 35:73 36:1777 37:4420 38:2791 39:732 40:153 41:3941 42:1086 43:2155 44:291 45:15948 46:4121 47:314 49:1674 50:1925 51:99 52:1411 53:1 54:363 55:707 56:8 57:59 58:1690 59:1115 60:957 61:2257 62:2478 63:1952 64:5482 65:2300 66:4807 67:2975 68:1196 69:4141 70:1339 71:657 72:3046 74:2658 75:1388 76:589 77:2171 78:1835 79:3116 80:1975 81:1600 82:1486 83:1201 84:1345 85:2893 86:707 87:1960 88:1093 89:3262 90:525 91:7607 92:1979 93:2584 94:3477 95:3864 96:1295 97:346 98:989 99:739 100:75 101:1285 102:2048 103:28796 104:4349 105:468 106:856 107:2512 108:817 109:4206 110:2053 111:3261 112:2026 113:1453 114:1483 115:1957 116:1880 117:2529 118:2329 119:1884 120:1668 121:1013 122:2534 123:2098 124:1535 125:2047 128:1167 129:1080 130:956 131:2040 132:792 133:373 134:1917 135:289 136:880 137:857 138:2434 139:1493 140:854 141:1385 142:1279 143:1478 144:1208 145:343 146:1784 147:1483 148:2220 149:1701 150:854 151:1083 152:1840 153:458 154:3511 155:1437 156:1771 157:1225 158:1033 159:2086 160:2463 161:1315 162:3453 163:1245 164:1623 165:1613 166:694 167:1731 168:3769 169:708 170:4435 171:827 172:3130 173:3076 174:1021 175:1143 176:3508 177:4621 178:3478 179:2020 180:2305 181:2935 182:3190 183:1949 184:2389 185:19448 186:4355 187:3641 188:3858 189:3171 190:8866 191:1320 192:10971 193:8581 194:6944 195:4936 196:2968 197:2411 198:5976 199:6020 200:7371 201:5677 202:10101 203:9979 204:4563 205:3374 206:3691 207:3361 208:4048 209:4646 210:4049 211:2340 212:3984 213:3420 214:1162 215:66 216:6430 217:2668 218:1251 219:406 220:1672 221:978 222:670 223:2115 End of report