IPv4 R&E Routing Table Report 23:05 GMT Tue 26 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: 881016 Prefixes after maximum aggregation (per Origin AS): 335020 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430341 Number of IPv4 prefixes with a valid ROA: 317106 Number of IPv4 prefixes with an invalid ROA: 1191 Number of IPv4 prefixes with no ROA: 562719 Total ASes present in the Internet Routing Table: 72868 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62552 Origin ASes announcing only one prefix: 25681 Transit ASes present in the Internet Routing Table: 10316 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: 856 Number of instances of unregistered ASNs: 859 Number of 32-bit ASNs allocated by the RIRs: 39200 Number of 32-bit ASNs visible in the Routing Table: 32521 Prefixes from 32-bit ASNs in the Routing Table: 153172 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: 494 Number of addresses announced to Internet: 3066446848 Equivalent to 182 /8s, 198 /16s and 68 /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: 296185 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228720 Total APNIC prefixes after maximum aggregation: 66006 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223674 Unique aggregates announced from the APNIC address blocks: 94579 APNIC Region origin ASes present in the Internet Routing Table: 12504 APNIC Prefixes per ASN: 17.89 APNIC Region origin ASes announcing only one prefix: 3544 APNIC Region transit ASes present in the Internet Routing Table: 1713 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: 7770 Number of APNIC addresses announced to Internet: 773390848 Equivalent to 46 /8s, 25 /16s and 2 /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: 260061 Total ARIN prefixes after maximum aggregation: 119507 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260205 Unique aggregates announced from the ARIN address blocks: 124685 ARIN Region origin ASes present in the Internet Routing Table: 18939 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6899 ARIN Region transit ASes present in the Internet Routing Table: 1872 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: 4453 Number of ARIN addresses announced to Internet: 1295299840 Equivalent to 77 /8s, 52 /16s and 181 /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: 249104 Total RIPE prefixes after maximum aggregation: 116017 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246434 Unique aggregates announced from the RIPE address blocks: 150528 RIPE Region origin ASes present in the Internet Routing Table: 28111 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12028 RIPE Region transit ASes present in the Internet Routing Table: 4011 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: 10698 Number of RIPE addresses announced to Internet: 713725184 Equivalent to 42 /8s, 138 /16s and 149 /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: 114395 Total LACNIC prefixes after maximum aggregation: 27360 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114253 Unique aggregates announced from the LACNIC address blocks: 48469 LACNIC Region origin ASes present in the Internet Routing Table: 10948 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2646 LACNIC Region transit ASes present in the Internet Routing Table: 2217 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8645 Number of LACNIC addresses announced to Internet: 176341248 Equivalent to 10 /8s, 130 /16s and 193 /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: 27880 Total AfriNIC prefixes after maximum aggregation: 5469 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35956 Unique aggregates announced from the AfriNIC address blocks: 11650 AfriNIC Region origin ASes present in the Internet Routing Table: 1622 AfriNIC Prefixes per ASN: 22.17 AfriNIC Region origin ASes announcing only one prefix: 564 AfriNIC Region transit ASes present in the Internet Routing Table: 330 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: 955 Number of AfriNIC addresses announced to Internet: 107413504 Equivalent to 6 /8s, 103 /16s and 0 /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 9143 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5908 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 3427 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 429 197 TATACOMM-AS TATA Communications formerl 24560 2049 854 382 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 6245 10272 2705 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3937 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3600 1842 2543 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2615 373 137 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2518 4962 422 CENTURYLINK-US-LEGACY-QWEST, US 20115 2253 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 6779 1730 150 UNI2-AS, ES 8551 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3922 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 2239 358 633 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 10463 3390 569 Uninet S.A. de C.V., MX 10620 3472 519 741 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1755 296 478 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 1083 369 21 Telefonica del Peru S.A.A., PE 11664 1017 191 443 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 1473 523 33 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 773 520 42 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 10463 3390 569 Uninet S.A. de C.V., MX 9808 9143 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6779 1730 150 UNI2-AS, ES 16509 6245 10272 2705 AMAZON-02, US 7545 5908 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3937 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3922 3360 192 AKAMAI-ASN1, NL 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 9143 9102 CHINAMOBILE-CN China Mobile Communications Grou 12479 6779 6629 UNI2-AS, ES 7545 5908 5212 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4008 3969 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 3922 3730 AKAMAI-ASN1, NL 22773 3937 3579 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3592 3573 VIETEL-AS-AP Viettel Group, VN 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 /14:1203 /15:2099 /16:13510 /17:8191 /18:13756 /19:24838 /20:42398 /21:50759 /22:107076 /23:94389 /24:521727 /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 5760 6779 UNI2-AS, ES 8151 4227 10463 Uninet S.A. de C.V., MX 8551 3474 4008 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2942 3937 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2271 2615 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 5:3776 6:104 7:5 8:1529 9:1 11:172 12:1709 13:298 14:2366 15:193 16:45 17:380 18:158 20:191 21:4 22:188 23:5628 24:2283 25:6 27:2601 29:19 31:2413 32:93 34:1 35:73 36:1777 37:4417 38:2835 39:700 40:153 41:3950 42:1088 43:2175 44:291 45:15939 46:4097 47:308 49:1675 50:2156 51:99 52:1419 54:363 55:663 56:8 57:59 58:1692 59:1117 60:958 61:2254 62:2478 63:1947 64:5480 65:2317 66:4818 67:2969 68:1175 69:4154 70:1339 71:657 72:3046 74:2655 75:1387 76:591 77:2176 78:1834 79:3110 80:1976 81:1588 82:1497 83:1205 84:1355 85:2893 86:703 87:1955 88:1101 89:3274 90:521 91:7604 92:2000 93:2584 94:3498 95:3870 96:1300 97:350 98:992 99:737 100:75 101:1271 102:2063 103:28856 104:4348 105:467 106:857 107:2511 108:827 109:4208 110:2021 111:3242 112:2024 113:1461 114:1477 115:1960 116:1877 117:2516 118:2330 119:1856 120:1660 121:1018 122:2542 123:2093 124:1535 125:2048 128:1183 129:1093 130:955 131:2041 132:789 133:372 134:1910 135:289 136:886 137:858 138:2435 139:1497 140:858 141:1403 142:1285 143:1453 144:1211 145:345 146:1801 147:1467 148:2224 149:1720 150:852 151:1078 152:1848 153:457 154:3508 155:1426 156:1764 157:1232 158:1038 159:2118 160:2478 161:1317 162:3454 163:1248 164:1627 165:1606 166:696 167:1734 168:3773 169:830 170:4479 171:829 172:3133 173:3080 174:1022 175:1134 176:3502 177:4642 178:3504 179:2020 180:2302 181:2960 182:3194 183:1953 184:2388 185:19434 186:4326 187:3688 188:3851 189:3181 190:8867 191:1333 192:10974 193:8598 194:6971 195:4945 196:2965 197:2409 198:5973 199:6019 200:7404 201:5675 202:10082 203:9984 204:4548 205:3421 206:3693 207:3343 208:4046 209:4640 210:4048 211:2343 212:4003 213:3426 214:1162 215:67 216:6438 217:2656 218:1248 219:404 220:1674 221:977 222:671 223:2107 End of report