IPv4 R&E Routing Table Report 23:05 GMT Thu 21 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: 880567 Prefixes after maximum aggregation (per Origin AS): 334813 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430059 Number of IPv4 prefixes with a valid ROA: 315426 Number of IPv4 prefixes with an invalid ROA: 1202 Number of IPv4 prefixes with no ROA: 563939 Total ASes present in the Internet Routing Table: 72849 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62555 Origin ASes announcing only one prefix: 25722 Transit ASes present in the Internet Routing Table: 10294 Transit-only ASes present in the Internet Routing Table: 378 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: 867 Number of instances of unregistered ASNs: 872 Number of 32-bit ASNs allocated by the RIRs: 39156 Number of 32-bit ASNs visible in the Routing Table: 32483 Prefixes from 32-bit ASNs in the Routing Table: 152965 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 499 Number of addresses announced to Internet: 3066318592 Equivalent to 182 /8s, 196 /16s and 79 /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: 295833 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 229030 Total APNIC prefixes after maximum aggregation: 65965 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223884 Unique aggregates announced from the APNIC address blocks: 94583 APNIC Region origin ASes present in the Internet Routing Table: 12489 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 3549 APNIC Region transit ASes present in the Internet Routing Table: 1706 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: 7755 Number of APNIC addresses announced to Internet: 773400320 Equivalent to 46 /8s, 25 /16s and 39 /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: 259537 Total ARIN prefixes after maximum aggregation: 119452 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259657 Unique aggregates announced from the ARIN address blocks: 124456 ARIN Region origin ASes present in the Internet Routing Table: 18937 ARIN Prefixes per ASN: 13.71 ARIN Region origin ASes announcing only one prefix: 6902 ARIN Region transit ASes present in the Internet Routing Table: 1874 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: 4441 Number of ARIN addresses announced to Internet: 1295163648 Equivalent to 77 /8s, 50 /16s and 161 /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: 248962 Total RIPE prefixes after maximum aggregation: 115902 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246339 Unique aggregates announced from the RIPE address blocks: 150494 RIPE Region origin ASes present in the Internet Routing Table: 28106 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 12047 RIPE Region transit ASes present in the Internet Routing Table: 4004 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: 10695 Number of RIPE addresses announced to Internet: 713799424 Equivalent to 42 /8s, 139 /16s and 183 /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: 114338 Total LACNIC prefixes after maximum aggregation: 27367 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114224 Unique aggregates announced from the LACNIC address blocks: 48464 LACNIC Region origin ASes present in the Internet Routing Table: 10944 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2210 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: 8641 Number of LACNIC addresses announced to Internet: 176323072 Equivalent to 10 /8s, 130 /16s and 122 /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: 27833 Total AfriNIC prefixes after maximum aggregation: 5464 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35964 Unique aggregates announced from the AfriNIC address blocks: 11652 AfriNIC Region origin ASes present in the Internet Routing Table: 1621 AfriNIC Prefixes per ASN: 22.19 AfriNIC Region origin ASes announcing only one prefix: 562 AfriNIC Region transit ASes present in the Internet Routing Table: 328 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 951 Number of AfriNIC addresses announced to Internet: 107343616 Equivalent to 6 /8s, 101 /16s and 239 /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 9135 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5911 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3610 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3427 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2397 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 2117 429 197 TATACOMM-AS TATA Communications formerl 24560 2048 855 376 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 6203 10264 2701 AMAZON-02, US 11492 4473 297 692 CABLEONE, US 22773 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3621 1857 2555 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2617 374 132 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2253 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 6787 1730 150 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3913 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2907 355 21 UKRTELNET, UA 12389 2899 2273 907 ROSTELECOM-AS, RU 9009 2472 247 1284 M247, GB 34984 2240 357 634 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 10578 3392 560 Uninet S.A. de C.V., MX 10620 3469 518 742 Telmex Colombia S.A., CO 11830 2427 369 63 Instituto Costarricense de Electricidad 13999 1753 296 469 Mega Cable, S.A. de C.V., MX 6503 1453 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 1023 191 447 Techtel LMDS Comunicaciones Interactiva 11172 961 133 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 1656 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 907 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 514 51 32 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 10578 3392 560 Uninet S.A. de C.V., MX 9808 9135 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6787 1730 150 UNI2-AS, ES 16509 6203 10264 2701 AMAZON-02, US 7545 5911 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4473 297 692 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3913 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 9135 9094 CHINAMOBILE-CN China Mobile Communications Grou 12479 6787 6637 UNI2-AS, ES 7545 5911 5214 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4473 3781 CABLEONE, US 20940 3913 3721 AKAMAI-ASN1, NL 7552 3610 3591 VIETEL-AS-AP Viettel Group, VN 22773 3934 3576 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 /10:40 /11:100 /12:303 /13:590 /14:1201 /15:2094 /16:13503 /17:8187 /18:13761 /19:24844 /20:42378 /21:50874 /22:107104 /23:94345 /24:521206 /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 5769 6787 UNI2-AS, ES 8151 4236 10578 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3379 4473 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2940 3934 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2273 2617 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1927 2:1034 3:154 4:7 5:3786 6:103 7:5 8:1525 9:1 11:172 12:1711 13:298 14:2366 15:193 16:45 17:381 18:153 20:194 21:4 22:188 23:5609 24:2282 25:6 27:2600 29:19 31:2414 32:94 34:1 35:73 36:1777 37:4410 38:2805 39:699 40:153 41:3958 42:1085 43:2182 44:289 45:15958 46:4110 47:307 49:1681 50:1929 51:99 52:1412 53:1 54:363 55:713 56:8 57:59 58:1689 59:1116 60:957 61:2260 62:2451 63:1950 64:5490 65:2296 66:4813 67:2972 68:1192 69:4128 70:1338 71:657 72:3045 74:2657 75:1387 76:590 77:2177 78:1844 79:3114 80:1974 81:1574 82:1496 83:1205 84:1353 85:2896 86:705 87:1959 88:1094 89:3268 90:521 91:7609 92:1995 93:2588 94:3497 95:3865 96:1298 97:351 98:991 99:739 100:75 101:1283 102:2059 103:28834 104:4351 105:466 106:856 107:2512 108:824 109:4210 110:2054 111:3243 112:2028 113:1459 114:1479 115:1959 116:1878 117:2517 118:2337 119:1870 120:1660 121:1018 122:2538 123:2097 124:1535 125:2049 128:1171 129:1067 130:954 131:2038 132:788 133:373 134:1918 135:291 136:883 137:859 138:2435 139:1501 140:857 141:1386 142:1282 143:1469 144:1208 145:343 146:1791 147:1484 148:2218 149:1715 150:853 151:1081 152:1847 153:458 154:3521 155:1428 156:1773 157:1226 158:1036 159:2096 160:2470 161:1310 162:3454 163:1248 164:1626 165:1616 166:697 167:1739 168:3775 169:710 170:4423 171:827 172:3135 173:3073 174:1021 175:1143 176:3507 177:4608 178:3507 179:2020 180:2309 181:2958 182:3191 183:1951 184:2389 185:19432 186:4373 187:3660 188:3851 189:3178 190:8857 191:1322 192:10972 193:8591 194:6950 195:4948 196:2977 197:2400 198:5972 199:6017 200:7412 201:5667 202:10088 203:9989 204:4553 205:3388 206:3695 207:3345 208:4054 209:4630 210:4048 211:2339 212:3994 213:3419 214:1162 215:66 216:6416 217:2659 218:1250 219:406 220:1673 221:978 222:670 223:2113 End of report