IPv4 R&E Routing Table Report 23:05 GMT Sat 23 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: 880953 Prefixes after maximum aggregation (per Origin AS): 334894 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430180 Number of IPv4 prefixes with a valid ROA: 315775 Number of IPv4 prefixes with an invalid ROA: 1188 Number of IPv4 prefixes with no ROA: 563990 Total ASes present in the Internet Routing Table: 72853 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62539 Origin ASes announcing only one prefix: 25705 Transit ASes present in the Internet Routing Table: 10314 Transit-only ASes present in the Internet Routing Table: 370 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: 852 Number of instances of unregistered ASNs: 855 Number of 32-bit ASNs allocated by the RIRs: 39186 Number of 32-bit ASNs visible in the Routing Table: 32494 Prefixes from 32-bit ASNs in the Routing Table: 153044 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: 486 Number of addresses announced to Internet: 3066390784 Equivalent to 182 /8s, 197 /16s and 105 /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: 296038 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228915 Total APNIC prefixes after maximum aggregation: 65965 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223825 Unique aggregates announced from the APNIC address blocks: 94564 APNIC Region origin ASes present in the Internet Routing Table: 12498 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 3544 APNIC Region transit ASes present in the Internet Routing Table: 1712 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: 7763 Number of APNIC addresses announced to Internet: 773397504 Equivalent to 46 /8s, 25 /16s and 28 /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: 259902 Total ARIN prefixes after maximum aggregation: 119487 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260026 Unique aggregates announced from the ARIN address blocks: 124609 ARIN Region origin ASes present in the Internet Routing Table: 18943 ARIN Prefixes per ASN: 13.73 ARIN Region origin ASes announcing only one prefix: 6906 ARIN Region transit ASes present in the Internet Routing Table: 1875 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: 4445 Number of ARIN addresses announced to Internet: 1295244544 Equivalent to 77 /8s, 51 /16s and 221 /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: 249157 Total RIPE prefixes after maximum aggregation: 115969 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246525 Unique aggregates announced from the RIPE address blocks: 150569 RIPE Region origin ASes present in the Internet Routing Table: 28112 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 4008 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: 713757440 Equivalent to 42 /8s, 139 /16s and 19 /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: 114235 Total LACNIC prefixes after maximum aggregation: 27344 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114115 Unique aggregates announced from the LACNIC address blocks: 48361 LACNIC Region origin ASes present in the Internet Routing Table: 10938 LACNIC Prefixes per ASN: 10.43 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2213 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: 8635 Number of LACNIC addresses announced to Internet: 176301568 Equivalent to 10 /8s, 130 /16s and 38 /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: 27892 Total AfriNIC prefixes after maximum aggregation: 5469 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35976 Unique aggregates announced from the AfriNIC address blocks: 11655 AfriNIC Region origin ASes present in the Internet Routing Table: 1622 AfriNIC Prefixes per ASN: 22.18 AfriNIC Region origin ASes announcing only one prefix: 562 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: 953 Number of AfriNIC addresses announced to Internet: 107413248 Equivalent to 6 /8s, 102 /16s and 255 /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 9136 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5909 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3593 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 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2114 429 197 TATACOMM-AS TATA Communications formerl 24560 2049 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 6253 10274 2707 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3620 1856 2555 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 374 124 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2519 4962 422 CENTURYLINK-US-LEGACY-QWEST, US 20115 2255 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 6786 1730 150 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3921 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2907 355 21 UKRTELNET, UA 12389 2900 2273 907 ROSTELECOM-AS, RU 9009 2473 247 1284 M247, GB 34984 2237 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 10592 3392 559 Uninet S.A. de C.V., MX 10620 3471 518 740 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1758 296 471 Mega Cable, S.A. de C.V., MX 6503 1454 355 525 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 1085 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 1655 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 613 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 10592 3392 559 Uninet S.A. de C.V., MX 9808 9136 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6786 1730 150 UNI2-AS, ES 16509 6253 10274 2707 AMAZON-02, US 7545 5909 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3921 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 9136 9095 CHINAMOBILE-CN China Mobile Communications Grou 12479 6786 6636 UNI2-AS, ES 7545 5909 5213 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 4474 3784 CABLEONE, US 20940 3921 3729 AKAMAI-ASN1, NL 22773 3934 3576 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3593 3574 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 /14:1201 /15:2094 /16:13503 /17:8191 /18:13764 /19:24846 /20:42376 /21:50859 /22:107091 /23:94370 /24:521588 /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 5768 6786 UNI2-AS, ES 8151 4249 10592 Uninet S.A. de C.V., MX 8551 3476 4010 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 2940 3934 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2274 2618 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 2:1033 3:154 4:7 5:3780 6:103 7:5 8:1527 9:1 11:172 12:1709 13:300 14:2367 15:193 16:45 17:379 18:159 20:194 21:4 22:188 23:5622 24:2282 25:6 27:2601 29:19 31:2414 32:93 34:1 35:73 36:1776 37:4414 38:2812 39:699 40:153 41:3951 42:1088 43:2172 44:289 45:15954 46:4111 47:308 49:1675 50:1949 51:100 52:1418 54:363 55:716 56:8 57:59 58:1692 59:1116 60:957 61:2260 62:2483 63:1950 64:5485 65:2293 66:4814 67:2970 68:1193 69:4147 70:1338 71:657 72:3046 74:2657 75:1387 76:589 77:2176 78:1844 79:3114 80:1975 81:1593 82:1495 83:1205 84:1351 85:2898 86:705 87:1955 88:1096 89:3267 90:521 91:7619 92:1999 93:2585 94:3501 95:3868 96:1293 97:351 98:991 99:737 100:75 101:1283 102:2063 103:28861 104:4357 105:466 106:857 107:2513 108:831 109:4211 110:2045 111:3243 112:2028 113:1461 114:1480 115:1958 116:1874 117:2515 118:2331 119:1870 120:1660 121:1018 122:2540 123:2092 124:1534 125:2045 128:1173 129:1092 130:956 131:2043 132:788 133:373 134:1917 135:289 136:882 137:862 138:2430 139:1498 140:857 141:1388 142:1282 143:1469 144:1210 145:342 146:1801 147:1483 148:2119 149:1724 150:853 151:1081 152:1848 153:458 154:3534 155:1425 156:1767 157:1227 158:1038 159:2120 160:2473 161:1319 162:3443 163:1248 164:1624 165:1615 166:692 167:1734 168:3777 169:834 170:4479 171:826 172:3136 173:3079 174:1022 175:1143 176:3516 177:4617 178:3507 179:2008 180:2309 181:2964 182:3190 183:1950 184:2390 185:19445 186:4369 187:3667 188:3855 189:3177 190:8849 191:1319 192:10964 193:8600 194:6970 195:4947 196:2980 197:2413 198:5971 199:6020 200:7409 201:5693 202:10085 203:9982 204:4550 205:3404 206:3695 207:3345 208:4049 209:4638 210:4048 211:2337 212:3999 213:3427 214:1159 215:67 216:6428 217:2661 218:1249 219:406 220:1673 221:977 222:670 223:2109 End of report