IPv4 R&E Routing Table Report 23:05 GMT Mon 25 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: 881059 Prefixes after maximum aggregation (per Origin AS): 334892 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430328 Number of IPv4 prefixes with a valid ROA: 316479 Number of IPv4 prefixes with an invalid ROA: 1193 Number of IPv4 prefixes with no ROA: 563387 Total ASes present in the Internet Routing Table: 72876 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62551 Origin ASes announcing only one prefix: 25720 Transit ASes present in the Internet Routing Table: 10325 Transit-only ASes present in the Internet Routing Table: 373 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: 854 Number of instances of unregistered ASNs: 858 Number of 32-bit ASNs allocated by the RIRs: 39201 Number of 32-bit ASNs visible in the Routing Table: 32519 Prefixes from 32-bit ASNs in the Routing Table: 153100 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 497 Number of addresses announced to Internet: 3066472448 Equivalent to 182 /8s, 198 /16s and 168 /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: 296053 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228921 Total APNIC prefixes after maximum aggregation: 66001 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223815 Unique aggregates announced from the APNIC address blocks: 94623 APNIC Region origin ASes present in the Internet Routing Table: 12515 APNIC Prefixes per ASN: 17.88 APNIC Region origin ASes announcing only one prefix: 3555 APNIC Region transit ASes present in the Internet Routing Table: 1714 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: 7779 Number of APNIC addresses announced to Internet: 773470976 Equivalent to 46 /8s, 26 /16s and 59 /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: 260110 Total ARIN prefixes after maximum aggregation: 119484 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260260 Unique aggregates announced from the ARIN address blocks: 124678 ARIN Region origin ASes present in the Internet Routing Table: 18938 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6895 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: 4445 Number of ARIN addresses announced to Internet: 1295261952 Equivalent to 77 /8s, 52 /16s and 33 /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: 248872 Total RIPE prefixes after maximum aggregation: 115943 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246281 Unique aggregates announced from the RIPE address blocks: 150490 RIPE Region origin ASes present in the Internet Routing Table: 28119 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 12052 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: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10703 Number of RIPE addresses announced to Internet: 713724416 Equivalent to 42 /8s, 138 /16s and 146 /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: 114459 Total LACNIC prefixes after maximum aggregation: 27343 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114301 Unique aggregates announced from the LACNIC address blocks: 48463 LACNIC Region origin ASes present in the Internet Routing Table: 10942 LACNIC Prefixes per ASN: 10.45 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2218 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: 8638 Number of LACNIC addresses announced to Internet: 176338176 Equivalent to 10 /8s, 130 /16s and 181 /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: 27843 Total AfriNIC prefixes after maximum aggregation: 5462 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35905 Unique aggregates announced from the AfriNIC address blocks: 11641 AfriNIC Region origin ASes present in the Internet Routing Table: 1621 AfriNIC Prefixes per ASN: 22.15 AfriNIC Region origin ASes announcing only one prefix: 566 AfriNIC Region transit ASes present in the Internet Routing Table: 329 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: 954 Number of AfriNIC addresses announced to Internet: 107397632 Equivalent to 6 /8s, 102 /16s and 194 /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 9142 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5908 789 695 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 3426 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2400 491 239 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 2116 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 6260 10274 2702 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 3614 1852 2550 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2614 373 141 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 6772 1730 150 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3924 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 2477 247 1288 M247, GB 34984 2239 358 633 TELLCOM-AS, TR 58224 1803 931 602 TCI, IR 13188 1571 98 67 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 10595 3391 561 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 1758 296 471 Mega Cable, S.A. de C.V., MX 6503 1455 355 525 Axtel, S.A.B. de C.V., MX 28573 1386 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 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 513 51 33 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 10595 3391 561 Uninet S.A. de C.V., MX 9808 9142 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6772 1730 150 UNI2-AS, ES 16509 6260 10274 2702 AMAZON-02, US 7545 5908 789 695 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3924 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 9142 9101 CHINAMOBILE-CN China Mobile Communications Grou 12479 6772 6622 UNI2-AS, ES 7545 5908 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 3924 3732 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 /16:13515 /17:8188 /18:13767 /19:24839 /20:42376 /21:50857 /22:107065 /23:94369 /24:521718 /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 5753 6772 UNI2-AS, ES 8151 4251 10595 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 2940 3934 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2270 2614 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 2:1035 3:154 4:7 5:3779 6:103 7:5 8:1530 9:1 11:172 12:1710 13:298 14:2369 15:193 16:45 17:381 18:159 20:194 21:4 22:188 23:5629 24:2282 25:6 27:2599 29:19 31:2410 32:93 34:2 35:73 36:1777 37:4412 38:2821 39:699 40:153 41:3906 42:1088 43:2174 44:290 45:15943 46:4098 47:308 49:1676 50:2160 51:100 52:1419 54:364 55:716 56:8 57:59 58:1693 59:1117 60:957 61:2258 62:2477 63:1951 64:5481 65:2317 66:4818 67:2969 68:1193 69:4147 70:1339 71:657 72:3046 74:2654 75:1388 76:590 77:2182 78:1847 79:3113 80:1973 81:1576 82:1496 83:1205 84:1342 85:2890 86:703 87:1957 88:1099 89:3267 90:521 91:7610 92:2000 93:2582 94:3494 95:3869 96:1295 97:351 98:991 99:737 100:75 101:1272 102:2062 103:28867 104:4348 105:464 106:856 107:2514 108:829 109:4187 110:2032 111:3242 112:2028 113:1459 114:1478 115:1958 116:1877 117:2516 118:2329 119:1860 120:1659 121:1018 122:2542 123:2093 124:1533 125:2051 128:1176 129:1092 130:958 131:2042 132:790 133:372 134:1913 135:289 136:886 137:856 138:2434 139:1498 140:857 141:1387 142:1283 143:1467 144:1213 145:343 146:1802 147:1465 148:2216 149:1722 150:851 151:1077 152:1846 153:458 154:3525 155:1425 156:1768 157:1229 158:1038 159:2115 160:2480 161:1320 162:3453 163:1248 164:1625 165:1607 166:693 167:1735 168:3776 169:830 170:4483 171:829 172:3134 173:3077 174:1022 175:1133 176:3516 177:4640 178:3507 179:2022 180:2309 181:2959 182:3194 183:1953 184:2388 185:19421 186:4308 187:3684 188:3854 189:3182 190:8857 191:1321 192:10969 193:8593 194:6956 195:4941 196:2985 197:2409 198:5969 199:6019 200:7409 201:5696 202:10083 203:9994 204:4546 205:3420 206:3693 207:3346 208:4048 209:4640 210:4048 211:2340 212:4001 213:3421 214:1160 215:67 216:6429 217:2661 218:1246 219:404 220:1675 221:977 222:672 223:2109 End of report