Global R&E Routing Table Report 23:15 GMT Fri 28 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 835991 Prefixes after maximum aggregation (per Origin AS): 318088 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 408801 Total ASes present in the Internet Routing Table: 71110 Prefixes per ASN: 11.76 Origin-only ASes present in the Internet Routing Table: 61194 Origin ASes announcing only one prefix: 25256 Transit ASes present in the Internet Routing Table: 9916 Transit-only ASes present in the Internet Routing Table: 315 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 53 Max AS path prepend of ASN ( 48366) 51 Prefixes from unregistered ASNs in the Routing Table: 1119 Number of instances of unregistered ASNs: 1123 Number of 32-bit ASNs allocated by the RIRs: 36147 Number of 32-bit ASNs visible in the Routing Table: 30002 Prefixes from 32-bit ASNs in the Routing Table: 135384 Number of bogon 32-bit ASNs visible in the Routing Table: 17 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 596 Number of addresses announced to Internet: 3040543488 Equivalent to 181 /8s, 59 /16s and 3 /24s Percentage of available address space announced: 82.1 Percentage of allocated address space announced: 82.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 282149 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 215498 Total APNIC prefixes after maximum aggregation: 62597 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 211549 Unique aggregates announced from the APNIC address blocks: 90152 APNIC Region origin ASes present in the Internet Routing Table: 11514 APNIC Prefixes per ASN: 18.37 APNIC Region origin ASes announcing only one prefix: 3293 APNIC Region transit ASes present in the Internet Routing Table: 1622 Average APNIC Region AS path length visible: 3.1 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 6733 Number of APNIC addresses announced to Internet: 774861312 Equivalent to 46 /8s, 47 /16s and 114 /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, 131072-147769 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: 246629 Total ARIN prefixes after maximum aggregation: 112800 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 246872 Unique aggregates announced from the ARIN address blocks: 118149 ARIN Region origin ASes present in the Internet Routing Table: 18715 ARIN Prefixes per ASN: 13.19 ARIN Region origin ASes announcing only one prefix: 6786 ARIN Region transit ASes present in the Internet Routing Table: 1916 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 3871 Number of ARIN addresses announced to Internet: 1271136256 Equivalent to 75 /8s, 196 /16s and 0 /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: 237095 Total RIPE prefixes after maximum aggregation: 110765 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 233174 Unique aggregates announced from the RIPE address blocks: 142374 RIPE Region origin ASes present in the Internet Routing Table: 27930 RIPE Prefixes per ASN: 8.35 RIPE Region origin ASes announcing only one prefix: 12000 RIPE Region transit ASes present in the Internet Routing Table: 3912 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 53 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10187 Number of RIPE addresses announced to Internet: 710693376 Equivalent to 42 /8s, 92 /16s and 82 /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: 109933 Total LACNIC prefixes after maximum aggregation: 26191 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 111085 Unique aggregates announced from the LACNIC address blocks: 47064 LACNIC Region origin ASes present in the Internet Routing Table: 10757 LACNIC Prefixes per ASN: 10.33 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2020 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 32 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8399 Number of LACNIC addresses announced to Internet: 176148224 Equivalent to 10 /8s, 127 /16s and 207 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 25708 Total AfriNIC prefixes after maximum aggregation: 4990 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 32715 Unique aggregates announced from the AfriNIC address blocks: 10591 AfriNIC Region origin ASes present in the Internet Routing Table: 1467 AfriNIC Prefixes per ASN: 22.30 AfriNIC Region origin ASes announcing only one prefix: 495 AfriNIC Region transit ASes present in the Internet Routing Table: 293 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 36 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 812 Number of AfriNIC addresses announced to Internet: 107268096 Equivalent to 6 /8s, 100 /16s and 200 /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 7545 5778 782 672 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5260 8995 48 CMNET-GD Guangdong Mobile Communication 7552 3519 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3519 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 2890 1896 54 VNPT-AS-VN VNPT Corp, VN 9498 2340 482 242 BBIL-AP BHARTI Airtel Ltd., IN 4766 2202 11359 558 KIXS-AS-KR Korea Telecom, KR 4755 2127 441 192 TATACOMM-AS TATA Communications formerl 45090 2081 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 23969 1949 314 16 TOT-NET TOT Public Company Limited, TH 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 5229 9379 2281 AMAZON-02, US 11492 4741 313 711 CABLEONE, US 7155 4027 264 32 VIASAT-SP-BACKBONE, US 22773 3930 3001 239 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3457 1770 2425 AKAMAI-AS, US 6327 3359 1317 67 SHAW, CA 30036 2566 372 160 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2520 5037 482 CENTURYLINK-US-LEGACY-QWEST, US 5972 2228 450 787 DNIC-ASBLK-05800-06055, US 20115 2170 2928 508 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 6672 1725 146 UNI2-AS, ES 20940 3612 3359 186 AKAMAI-ASN1, NL 39891 3266 187 22 ALJAWWALSTC-AS, SA 8551 3061 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2871 2281 891 ROSTELECOM-AS, RU 9009 2429 253 1305 M247, GB 34984 2200 355 590 TELLCOM-AS, TR 13188 1609 100 31 TRIOLAN, UA 58224 1593 886 575 TCI, IR 61317 1545 283 787 ASDETUK http://www.heficed.com, GB 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 8620 3483 572 Uninet S.A. de C.V., MX 10620 3422 526 613 Telmex Colombia S.A., CO 11830 2498 369 62 Instituto Costarricense de Electricidad 13999 1731 434 453 Mega Cable, S.A. de C.V., MX 6503 1450 311 476 Axtel, S.A.B. de C.V., MX 28573 1390 2282 227 CLARO S.A., BR 3816 1232 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1113 374 31 Telefonica del Peru S.A.A., PE 11664 1003 208 417 Techtel LMDS Comunicaciones Interactiva 11172 963 111 69 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 1590 391 54 LINKdotNET-AS, EG 24835 1454 498 30 RAYA-AS, EG 36992 1240 1473 176 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 730 68 11 ORANGE-COTE-IVOIRE, CI 6713 613 1863 34 IAM-AS, MA 36935 528 522 40 Vodafone-, EG 37342 484 32 1 MOVITEL, MZ 15399 481 48 23 WANANCHI-, KE 23889 436 232 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 8620 3483 572 Uninet S.A. de C.V., MX 12479 6672 1725 146 UNI2-AS, ES 7545 5778 782 672 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5260 8995 48 CMNET-GD Guangdong Mobile Communication 16509 5229 9379 2281 AMAZON-02, US 11492 4741 313 711 CABLEONE, US 7155 4027 264 32 VIASAT-SP-BACKBONE, US 22773 3930 3001 239 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3612 3359 186 AKAMAI-ASN1, NL 7552 3519 1330 20 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 12479 6672 6526 UNI2-AS, ES 9808 5260 5212 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5778 5106 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4741 4030 CABLEONE, US 7155 4027 3995 VIASAT-SP-BACKBONE, US 22773 3930 3691 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3519 3499 VIETEL-AS-AP Viettel Group, VN 7713 3519 3463 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 20940 3612 3426 AKAMAI-ASN1, NL 6327 3359 3292 SHAW, CA 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 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 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US 46505 UNALLOCATED 12.7.131.0/24 7018 ATT-INTERNET4, US 15132 UNALLOCATED 12.9.150.0/24 1239 SPRINTLINK, 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 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.80.0/24 Origin: 398481 REDMERCURY, US Transit: 209319 IPV6ROUTING, US 23.162.32.0/24 Origin: 32444 SAFELINK-MV, US Transit: 6939 HURRICANE, US 23.249.162.0/24 Origin: 36352 AS-COLOCROSSING, US Transit: 1299 TELIANET Telia Carrier, SE 27.100.7.0/24 Origin: 56096 UNASSIGNED Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 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 /13:584 /14:1183 /15:1989 /16:13435 /17:8189 /18:13693 /19:24813 /20:40313 /21:48672 /22:104202 /23:89040 /24:489396 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:4 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5625 6672 UNI2-AS, ES 11492 3777 4741 CABLEONE, US 8151 3170 8620 Uninet S.A. de C.V., MX 6327 3167 3359 SHAW, CA 7155 3115 4027 VIASAT-SP-BACKBONE, US 22773 2961 3930 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2801 3266 ALJAWWALSTC-AS, SA 8551 2526 3061 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2233 2566 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1921 2498 Instituto Costarricense de Electricidad y Telec Complete listing at https://bgp.nsrc.org/REN/singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1872 2:1190 3:137 4:23 5:3587 6:74 7:5 8:1499 11:164 12:1741 13:363 14:2192 15:77 16:15 17:322 18:107 20:122 21:1 22:188 23:4753 24:2380 25:2 27:2531 29:19 31:2284 32:107 34:16 35:45 36:1398 37:3775 38:2143 39:589 40:159 41:3769 42:938 43:2087 44:259 45:14895 46:3689 47:262 49:1571 50:1784 51:100 52:1279 54:234 55:738 56:7 57:50 58:1598 59:1042 60:926 61:2179 62:2258 63:1962 64:5330 65:2348 66:5026 67:2888 68:1165 69:4032 70:1387 71:680 72:3143 74:2594 75:1488 76:693 77:2018 78:1691 79:2256 80:1857 81:1509 82:1362 83:1130 84:1258 85:2673 86:706 87:1820 88:968 89:2975 90:470 91:7352 92:1777 93:2528 94:3113 95:3507 96:1283 97:344 98:998 99:968 100:78 101:1289 102:1444 103:26050 104:3763 105:435 106:778 107:2267 108:700 109:3986 110:1885 111:2810 112:1875 113:1276 114:1444 115:1939 116:1798 117:2170 118:2277 119:1832 120:1095 121:962 122:2458 123:2162 124:1520 125:1872 128:1191 129:1200 130:848 131:2017 132:703 133:357 134:1601 135:294 136:760 137:928 138:2326 139:1180 140:726 141:1179 142:1184 143:1290 144:1251 145:328 146:1427 147:1313 148:2163 149:1417 150:812 151:1073 152:1540 153:412 154:2485 155:1330 156:1513 157:1174 158:909 159:2033 160:2331 161:1161 162:3271 163:996 164:1531 165:1408 166:593 167:1788 168:3592 169:678 170:4247 171:774 172:2396 173:2932 174:993 175:1076 176:3149 177:4338 178:2897 179:1891 180:2324 181:2630 182:3153 183:1589 184:2419 185:18257 186:4137 187:3102 188:3286 189:2910 190:8840 191:1362 192:10650 193:8143 194:6595 195:4709 196:2869 197:2179 198:6017 199:6002 200:7372 201:5275 202:10106 203:10037 204:4607 205:3352 206:3480 207:3324 208:3986 209:4666 210:3961 211:2105 212:3655 213:3384 214:1213 215:62 216:6221 217:2542 218:1057 219:460 220:2016 221:931 222:693 223:1703 End of report