IPv4 R&E Routing Table Report 23:05 GMT Thu 28 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: 881167 Prefixes after maximum aggregation (per Origin AS): 335231 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430286 Number of IPv4 prefixes with a valid ROA: 317937 Number of IPv4 prefixes with an invalid ROA: 1225 Number of IPv4 prefixes with no ROA: 562005 Total ASes present in the Internet Routing Table: 72901 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62575 Origin ASes announcing only one prefix: 25717 Transit ASes present in the Internet Routing Table: 10326 Transit-only ASes present in the Internet Routing Table: 374 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 848 Number of instances of unregistered ASNs: 851 Number of 32-bit ASNs allocated by the RIRs: 39238 Number of 32-bit ASNs visible in the Routing Table: 32560 Prefixes from 32-bit ASNs in the Routing Table: 153182 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 481 Number of addresses announced to Internet: 3066284288 Equivalent to 182 /8s, 195 /16s and 201 /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: 296195 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228878 Total APNIC prefixes after maximum aggregation: 66045 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223827 Unique aggregates announced from the APNIC address blocks: 94657 APNIC Region origin ASes present in the Internet Routing Table: 12528 APNIC Prefixes per ASN: 17.87 APNIC Region origin ASes announcing only one prefix: 3559 APNIC Region transit ASes present in the Internet Routing Table: 1717 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7788 Number of APNIC addresses announced to Internet: 773392896 Equivalent to 46 /8s, 25 /16s and 10 /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: 260291 Total ARIN prefixes after maximum aggregation: 119531 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260465 Unique aggregates announced from the ARIN address blocks: 124720 ARIN Region origin ASes present in the Internet Routing Table: 18939 ARIN Prefixes per ASN: 13.75 ARIN Region origin ASes announcing only one prefix: 6898 ARIN Region transit ASes present in the Internet Routing Table: 1878 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: 4455 Number of ARIN addresses announced to Internet: 1295432192 Equivalent to 77 /8s, 54 /16s and 186 /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: 249254 Total RIPE prefixes after maximum aggregation: 116075 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246568 Unique aggregates announced from the RIPE address blocks: 150511 RIPE Region origin ASes present in the Internet Routing Table: 28116 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: 4012 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10711 Number of RIPE addresses announced to Internet: 713846272 Equivalent to 42 /8s, 140 /16s and 110 /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: 114291 Total LACNIC prefixes after maximum aggregation: 27481 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 114145 Unique aggregates announced from the LACNIC address blocks: 48376 LACNIC Region origin ASes present in the Internet Routing Table: 10949 LACNIC Prefixes per ASN: 10.43 LACNIC Region origin ASes announcing only one prefix: 2656 LACNIC Region transit ASes present in the Internet Routing Table: 2214 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: 8647 Number of LACNIC addresses announced to Internet: 176226816 Equivalent to 10 /8s, 129 /16s and 2 /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: 27605 Total AfriNIC prefixes after maximum aggregation: 5442 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 35681 Unique aggregates announced from the AfriNIC address blocks: 11605 AfriNIC Region origin ASes present in the Internet Routing Table: 1629 AfriNIC Prefixes per ASN: 21.90 AfriNIC Region origin ASes announcing only one prefix: 567 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: 959 Number of AfriNIC addresses announced to Internet: 107113984 Equivalent to 6 /8s, 98 /16s and 110 /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 9149 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5910 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3430 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2400 491 239 BBIL-AP BHARTI Airtel Ltd., IN 4766 2252 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2116 429 198 TATACOMM-AS TATA Communications formerl 24560 2050 855 379 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 6267 10276 2711 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3923 3071 356 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3597 1839 2540 AKAMAI-AS, US 6327 3430 1318 60 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2622 374 123 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2519 4962 422 CENTURYLINK-US-LEGACY-QWEST, US 20115 2249 3051 492 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 6768 1730 150 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3927 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2907 355 21 UKRTELNET, UA 12389 2897 2273 908 ROSTELECOM-AS, RU 9009 2478 247 1289 M247, GB 34984 2237 357 631 TELLCOM-AS, TR 58224 1813 931 613 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 10610 3389 561 Uninet S.A. de C.V., MX 10620 3372 506 889 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1764 296 471 Mega Cable, S.A. de C.V., MX 6503 1454 355 526 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 1078 369 21 Telefonica del Peru S.A.A., PE 11664 1021 191 442 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 1654 393 21 LINKdotNET-AS, EG 24835 1444 515 32 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 908 65 59 ORANGE-COTE-IVOIRE, CI 36935 634 520 43 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 512 51 33 WANANCHI-, KE 37342 467 32 1 MOVITEL, MZ 23889 420 232 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 10610 3389 561 Uninet S.A. de C.V., MX 9808 9149 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6768 1730 150 UNI2-AS, ES 16509 6267 10276 2711 AMAZON-02, US 7545 5910 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3927 3360 192 AKAMAI-ASN1, NL 22773 3923 3071 356 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 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 9149 9108 CHINAMOBILE-CN China Mobile Communications Grou 12479 6768 6618 UNI2-AS, ES 7545 5910 5214 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4474 3784 CABLEONE, US 20940 3927 3735 AKAMAI-ASN1, NL 7552 3592 3573 VIETEL-AS-AP Viettel Group, VN 22773 3923 3567 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 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 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 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 /13:589 /14:1202 /15:2099 /16:13509 /17:8196 /18:13760 /19:24845 /20:42436 /21:50843 /22:106917 /23:94344 /24:521947 /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 5749 6768 UNI2-AS, ES 8151 4267 10610 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3244 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2936 3923 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2278 2622 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 5:3780 6:104 7:5 8:1531 9:1 11:172 12:1708 13:299 14:2370 15:193 16:45 17:384 18:160 20:191 21:4 22:188 23:5633 24:2283 25:6 27:2600 29:19 31:2417 32:93 34:1 35:73 36:1777 37:4418 38:2825 39:700 40:153 41:3947 42:1078 43:2176 44:300 45:15917 46:4109 47:315 49:1676 50:2159 51:99 52:1416 54:364 55:737 56:8 57:59 58:1693 59:1116 60:958 61:2252 62:2477 63:1951 64:5481 65:2315 66:4808 67:2968 68:1192 69:4150 70:1340 71:655 72:3046 74:2655 75:1386 76:591 77:2178 78:1848 79:3112 80:1979 81:1590 82:1498 83:1207 84:1354 85:2903 86:710 87:1959 88:1102 89:3282 90:520 91:7607 92:1997 93:2581 94:3500 95:3856 96:1305 97:350 98:988 99:736 100:75 101:1271 102:2070 103:28880 104:4352 105:464 106:857 107:2521 108:828 109:4202 110:2020 111:3246 112:2025 113:1472 114:1480 115:1969 116:1878 117:2515 118:2332 119:1858 120:1661 121:1018 122:2542 123:2095 124:1537 125:2054 128:1187 129:1094 130:954 131:2042 132:791 133:372 134:1907 135:289 136:885 137:857 138:2440 139:1498 140:847 141:1397 142:1285 143:1465 144:1213 145:344 146:1802 147:1465 148:2221 149:1720 150:848 151:1079 152:1845 153:458 154:3508 155:1434 156:1761 157:1228 158:1038 159:2128 160:2479 161:1278 162:3465 163:1254 164:1626 165:1611 166:697 167:1730 168:3770 169:834 170:4486 171:829 172:3137 173:3085 174:1022 175:1130 176:3509 177:4652 178:3504 179:2008 180:2316 181:2941 182:3202 183:1953 184:2386 185:19441 186:4287 187:3689 188:3852 189:3205 190:8829 191:1325 192:10977 193:8590 194:6978 195:4948 196:2989 197:2388 198:5974 199:6020 200:7383 201:5693 202:10092 203:9997 204:4547 205:3446 206:3691 207:3347 208:4043 209:4650 210:4056 211:2341 212:4010 213:3431 214:1157 215:67 216:6424 217:2657 218:1249 219:405 220:1673 221:978 222:670 223:2107 End of report