Global R&E Routing Table Report 23:15 GMT Tue 08 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 847346 Prefixes after maximum aggregation (per Origin AS): 322724 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 408998 Total ASes present in the Internet Routing Table: 71264 Prefixes per ASN: 11.89 Origin-only ASes present in the Internet Routing Table: 61197 Origin ASes announcing only one prefix: 25283 Transit ASes present in the Internet Routing Table: 10067 Transit-only ASes present in the Internet Routing Table: 333 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 52 Max AS path prepend of ASN ( 48366) 51 Prefixes from unregistered ASNs in the Routing Table: 1039 Number of instances of unregistered ASNs: 1048 Number of 32-bit ASNs allocated by the RIRs: 36263 Number of 32-bit ASNs visible in the Routing Table: 30103 Prefixes from 32-bit ASNs in the Routing Table: 136196 Number of bogon 32-bit ASNs visible in the Routing Table: 32 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 520 Number of addresses announced to Internet: 3040686848 Equivalent to 181 /8s, 61 /16s and 51 /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: 290372 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 216465 Total APNIC prefixes after maximum aggregation: 62682 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 212205 Unique aggregates announced from the APNIC address blocks: 89829 APNIC Region origin ASes present in the Internet Routing Table: 11516 APNIC Prefixes per ASN: 18.43 APNIC Region origin ASes announcing only one prefix: 3287 APNIC Region transit ASes present in the Internet Routing Table: 1625 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: 6749 Number of APNIC addresses announced to Internet: 775504896 Equivalent to 46 /8s, 57 /16s and 68 /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: 247328 Total ARIN prefixes after maximum aggregation: 113288 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 247684 Unique aggregates announced from the ARIN address blocks: 118372 ARIN Region origin ASes present in the Internet Routing Table: 18784 ARIN Prefixes per ASN: 13.19 ARIN Region origin ASes announcing only one prefix: 6815 ARIN Region transit ASes present in the Internet Routing Table: 1945 Average ARIN Region AS path length visible: 3.5 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 3894 Number of ARIN addresses announced to Internet: 1271203072 Equivalent to 75 /8s, 197 /16s and 5 /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: 246253 Total RIPE prefixes after maximum aggregation: 114464 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 242265 Unique aggregates announced from the RIPE address blocks: 142536 RIPE Region origin ASes present in the Internet Routing Table: 27968 RIPE Prefixes per ASN: 8.66 RIPE Region origin ASes announcing only one prefix: 12019 RIPE Region transit ASes present in the Internet Routing Table: 3992 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10233 Number of RIPE addresses announced to Internet: 710285824 Equivalent to 42 /8s, 86 /16s and 26 /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: 110438 Total LACNIC prefixes after maximum aggregation: 26454 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 111572 Unique aggregates announced from the LACNIC address blocks: 47096 LACNIC Region origin ASes present in the Internet Routing Table: 10762 LACNIC Prefixes per ASN: 10.37 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2033 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8406 Number of LACNIC addresses announced to Internet: 176245760 Equivalent to 10 /8s, 129 /16s and 76 /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: 25811 Total AfriNIC prefixes after maximum aggregation: 5090 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 33100 Unique aggregates announced from the AfriNIC address blocks: 10705 AfriNIC Region origin ASes present in the Internet Routing Table: 1478 AfriNIC Prefixes per ASN: 22.40 AfriNIC Region origin ASes announcing only one prefix: 508 AfriNIC Region transit ASes present in the Internet Routing Table: 294 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 36 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 821 Number of AfriNIC addresses announced to Internet: 107017472 Equivalent to 6 /8s, 96 /16s and 245 /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 5790 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5257 8999 55 CMNET-GD Guangdong Mobile Communication 7713 3525 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 7552 3509 1330 20 VIETEL-AS-AP Viettel Group, VN 45899 2891 1896 54 VNPT-AS-VN VNPT Corp, VN 9498 2350 483 246 BBIL-AP BHARTI Airtel Ltd., IN 4766 2204 11359 559 KIXS-AS-KR Korea Telecom, KR 4755 2128 441 192 TATACOMM-AS TATA Communications formerl 45090 2116 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 23969 1943 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 5175 9384 2302 AMAZON-02, US 11492 4708 311 703 CABLEONE, US 7155 4026 264 32 VIASAT-SP-BACKBONE, US 22773 3935 3002 244 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3471 1778 2427 AKAMAI-AS, US 6327 3361 1317 69 SHAW, CA 30036 2582 374 120 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2543 5036 481 CENTURYLINK-US-LEGACY-QWEST, US 5972 2244 452 787 DNIC-ASBLK-05800-06055, US 20115 2170 2929 502 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 47331 7840 1054 3509 TTNET, TR 12479 6724 1725 146 UNI2-AS, ES 20940 3640 3359 188 AKAMAI-ASN1, NL 8551 3312 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3266 187 22 ALJAWWALSTC-AS, SA 12389 2884 2283 896 ROSTELECOM-AS, RU 9009 2429 254 1304 M247, GB 34984 2204 355 591 TELLCOM-AS, TR 61317 1628 282 790 ASDETUK http://www.heficed.com, GB 13188 1609 100 31 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 8649 3483 573 Uninet S.A. de C.V., MX 10620 3422 526 613 Telmex Colombia S.A., CO 11830 2503 369 62 Instituto Costarricense de Electricidad 13999 1739 435 455 Mega Cable, S.A. de C.V., MX 6503 1451 311 477 Axtel, S.A.B. de C.V., MX 28573 1391 2283 229 CLARO S.A., BR 3816 1237 649 151 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1113 374 31 Telefonica del Peru S.A.A., PE 11664 1006 208 420 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 1596 393 22 LINKdotNET-AS, EG 24835 1451 498 30 RAYA-AS, EG 36992 1259 1457 265 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 734 68 11 ORANGE-COTE-IVOIRE, CI 6713 613 1863 34 IAM-AS, MA 36935 528 522 40 Vodafone-, EG 15399 492 48 24 WANANCHI-, KE 37342 473 32 1 MOVITEL, MZ 23889 438 232 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 8649 3483 573 Uninet S.A. de C.V., MX 47331 7840 1054 3509 TTNET, TR 12479 6724 1725 146 UNI2-AS, ES 7545 5790 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5257 8999 55 CMNET-GD Guangdong Mobile Communication 16509 5175 9384 2302 AMAZON-02, US 11492 4708 311 703 CABLEONE, US 7155 4026 264 32 VIASAT-SP-BACKBONE, US 22773 3935 3002 244 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3640 3359 188 AKAMAI-ASN1, NL 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 6724 6578 UNI2-AS, ES 9808 5257 5202 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5790 5116 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 7840 4331 TTNET, TR 11492 4708 4005 CABLEONE, US 7155 4026 3994 VIASAT-SP-BACKBONE, US 22773 3935 3691 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3509 3489 VIETEL-AS-AP Viettel Group, VN 7713 3525 3469 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 20940 3640 3452 AKAMAI-ASN1, NL 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 8.33.224.0/24 174 COGENT-174, 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: 209319 IPV6ROUTING, US Transit: 46573 LAYER-HOST, US 23.162.32.0/24 Origin: 32444 SAFELINK-MV, US Transit: 6939 HURRICANE, US 27.100.7.0/24 Origin: 56096 UNASSIGNED Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.67.224.0/22 Origin: 15964 CAMNET-AS, CM Transit: 12956 TELEFONICA TELXIUS, ES 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 /12:307 /13:585 /14:1188 /15:2028 /16:13445 /17:8214 /18:13729 /19:24886 /20:40485 /21:49633 /22:105088 /23:90379 /24:497197 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 47331 7007 7840 TTNET, TR 12479 5674 6724 UNI2-AS, ES 11492 3755 4708 CABLEONE, US 8151 3193 8649 Uninet S.A. de C.V., MX 6327 3167 3361 SHAW, CA 7155 3114 4026 VIASAT-SP-BACKBONE, US 22773 2966 3935 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2801 3266 ALJAWWALSTC-AS, SA 8551 2776 3312 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2249 2582 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1888 2:1205 3:134 4:19 5:3602 6:74 7:5 8:1509 11:164 12:1735 13:362 14:2193 15:78 16:15 17:324 18:93 20:122 21:1 22:188 23:4771 24:2404 25:2 27:2553 29:19 31:2295 32:106 34:1 35:40 36:1417 37:3769 38:2160 39:588 40:159 41:3735 42:941 43:2054 44:260 45:15000 46:3704 47:382 49:1611 50:1790 51:100 52:1248 54:223 55:769 56:10 57:54 58:1611 59:1045 60:931 61:2184 62:2275 63:1964 64:5330 65:2379 66:5028 67:2883 68:1165 69:4068 70:1387 71:680 72:3137 74:2593 75:1485 76:697 77:2020 78:3705 79:2635 80:1866 81:1653 82:1366 83:1117 84:1266 85:3418 86:713 87:1809 88:2702 89:2996 90:488 91:7348 92:1795 93:2551 94:3127 95:4458 96:1286 97:343 98:970 99:969 100:77 101:1294 102:1487 103:26051 104:3761 105:434 106:780 107:2232 108:712 109:3856 110:1890 111:2805 112:1867 113:1276 114:1431 115:1947 116:1799 117:2212 118:2277 119:1838 120:1100 121:972 122:2485 123:2150 124:1531 125:1880 128:1244 129:1206 130:848 131:2030 132:737 133:360 134:1605 135:299 136:764 137:932 138:2361 139:1187 140:732 141:1178 142:1189 143:1286 144:1255 145:333 146:1443 147:1323 148:2195 149:1436 150:815 151:1073 152:1512 153:414 154:2596 155:1328 156:1555 157:1185 158:917 159:2005 160:2322 161:1160 162:3288 163:991 164:1535 165:1386 166:598 167:1808 168:3594 169:693 170:4273 171:775 172:2429 173:2969 174:995 175:1077 176:3156 177:4339 178:2911 179:1877 180:2324 181:2641 182:3156 183:1589 184:2405 185:18356 186:4181 187:3098 188:3304 189:2905 190:8887 191:1397 192:10656 193:8184 194:6670 195:4786 196:2942 197:2172 198:6001 199:6003 200:7408 201:5281 202:10141 203:10083 204:4621 205:3346 206:3496 207:3339 208:3999 209:4675 210:3968 211:2123 212:3711 213:3405 214:1215 215:61 216:6237 217:2568 218:1058 219:459 220:2032 221:930 222:693 223:1709 End of report