Global R&E Routing Table Report 23:15 GMT Mon 24 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 846132 Prefixes after maximum aggregation (per Origin AS): 322078 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 407960 Total ASes present in the Internet Routing Table: 71177 Prefixes per ASN: 11.89 Origin-only ASes present in the Internet Routing Table: 61132 Origin ASes announcing only one prefix: 25242 Transit ASes present in the Internet Routing Table: 10045 Transit-only ASes present in the Internet Routing Table: 323 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 58 Max AS path prepend of ASN (203986) 55 Prefixes from unregistered ASNs in the Routing Table: 1160 Number of instances of unregistered ASNs: 1173 Number of 32-bit ASNs allocated by the RIRs: 36113 Number of 32-bit ASNs visible in the Routing Table: 29988 Prefixes from 32-bit ASNs in the Routing Table: 135387 Number of bogon 32-bit ASNs visible in the Routing Table: 33 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 626 Number of addresses announced to Internet: 3040347392 Equivalent to 181 /8s, 56 /16s and 5 /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: 290033 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 215727 Total APNIC prefixes after maximum aggregation: 62530 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 211811 Unique aggregates announced from the APNIC address blocks: 89849 APNIC Region origin ASes present in the Internet Routing Table: 11498 APNIC Prefixes per ASN: 18.42 APNIC Region origin ASes announcing only one prefix: 3280 APNIC Region transit ASes present in the Internet Routing Table: 1619 Average APNIC Region AS path length visible: 3.2 Max APNIC Region AS path length visible: 30 Number of APNIC region 32-bit ASNs visible in the Routing Table: 6713 Number of APNIC addresses announced to Internet: 774430208 Equivalent to 46 /8s, 40 /16s and 222 /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: 247029 Total ARIN prefixes after maximum aggregation: 113030 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 247357 Unique aggregates announced from the ARIN address blocks: 118035 ARIN Region origin ASes present in the Internet Routing Table: 18776 ARIN Prefixes per ASN: 13.17 ARIN Region origin ASes announcing only one prefix: 6810 ARIN Region transit ASes present in the Internet Routing Table: 1946 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: 3881 Number of ARIN addresses announced to Internet: 1271397376 Equivalent to 75 /8s, 199 /16s and 252 /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: 245731 Total RIPE prefixes after maximum aggregation: 114247 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 241774 Unique aggregates announced from the RIPE address blocks: 142025 RIPE Region origin ASes present in the Internet Routing Table: 27930 RIPE Prefixes per ASN: 8.66 RIPE Region origin ASes announcing only one prefix: 11978 RIPE Region transit ASes present in the Internet Routing Table: 3983 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 58 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10192 Number of RIPE addresses announced to Internet: 710549760 Equivalent to 42 /8s, 90 /16s and 33 /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: 110918 Total LACNIC prefixes after maximum aggregation: 26533 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 112037 Unique aggregates announced from the LACNIC address blocks: 47084 LACNIC Region origin ASes present in the Internet Routing Table: 10755 LACNIC Prefixes per ASN: 10.42 LACNIC Region origin ASes announcing only one prefix: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2027 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: 8393 Number of LACNIC addresses announced to Internet: 176224512 Equivalent to 10 /8s, 128 /16s and 249 /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: 25555 Total AfriNIC prefixes after maximum aggregation: 4956 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 32527 Unique aggregates announced from the AfriNIC address blocks: 10474 AfriNIC Region origin ASes present in the Internet Routing Table: 1465 AfriNIC Prefixes per ASN: 22.20 AfriNIC Region origin ASes announcing only one prefix: 499 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: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 809 Number of AfriNIC addresses announced to Internet: 107292672 Equivalent to 6 /8s, 101 /16s and 40 /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 5780 783 671 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5266 8995 52 CMNET-GD Guangdong Mobile Communication 7713 3521 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 7552 3507 1330 20 VIETEL-AS-AP Viettel Group, VN 45899 2889 1896 54 VNPT-AS-VN VNPT Corp, VN 9498 2342 482 241 BBIL-AP BHARTI Airtel Ltd., IN 4766 2203 11359 558 KIXS-AS-KR Korea Telecom, KR 4755 2127 441 192 TATACOMM-AS TATA Communications formerl 45090 2116 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 23969 1944 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 5221 9380 2285 AMAZON-02, US 11492 4795 317 601 CABLEONE, US 7155 4027 264 32 VIASAT-SP-BACKBONE, US 22773 3933 3002 244 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3443 1767 2422 AKAMAI-AS, US 6327 3360 1317 68 SHAW, CA 30036 2564 372 172 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2525 5037 481 CENTURYLINK-US-LEGACY-QWEST, US 5972 2243 452 778 DNIC-ASBLK-05800-06055, US 20115 2168 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 47331 7741 1038 3499 TTNET, TR 12479 6647 1725 146 UNI2-AS, ES 20940 3608 3359 188 AKAMAI-ASN1, NL 8551 3417 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3266 187 22 ALJAWWALSTC-AS, SA 12389 2888 2281 891 ROSTELECOM-AS, RU 9009 2427 253 1303 M247, GB 34984 2203 355 591 TELLCOM-AS, TR 13188 1609 100 31 TRIOLAN, UA 58224 1595 886 577 TCI, IR 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 8612 3483 571 Uninet S.A. de C.V., MX 10620 3422 526 613 Telmex Colombia S.A., CO 11830 2494 369 62 Instituto Costarricense de Electricidad 13999 1730 435 445 Mega Cable, S.A. de C.V., MX 6503 1451 311 477 Axtel, S.A.B. de C.V., MX 28573 1392 2282 227 CLARO S.A., BR 3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1120 377 38 Telefonica del Peru S.A.A., PE 11664 1004 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 1593 393 22 LINKdotNET-AS, EG 24835 1452 494 28 RAYA-AS, EG 36992 1196 1473 176 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 731 68 11 ORANGE-COTE-IVOIRE, CI 6713 612 1863 34 IAM-AS, MA 36935 526 522 40 Vodafone-, EG 15399 483 48 24 WANANCHI-, KE 23889 435 232 14 MauritiusTelecom, MU 2018 321 319 74 TENET-1, ZA 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 8612 3483 571 Uninet S.A. de C.V., MX 47331 7741 1038 3499 TTNET, TR 12479 6647 1725 146 UNI2-AS, ES 7545 5780 783 671 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5266 8995 52 CMNET-GD Guangdong Mobile Communication 16509 5221 9380 2285 AMAZON-02, US 11492 4795 317 601 CABLEONE, US 7155 4027 264 32 VIASAT-SP-BACKBONE, US 22773 3933 3002 244 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3608 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 6647 6501 UNI2-AS, ES 9808 5266 5214 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5780 5109 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 7741 4242 TTNET, TR 11492 4795 4194 CABLEONE, US 7155 4027 3995 VIASAT-SP-BACKBONE, US 22773 3933 3689 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3507 3487 VIETEL-AS-AP Viettel Group, VN 7713 3521 3465 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 20940 3608 3420 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: 398481 REDMERCURY, US Transit: 209319 IPV6ROUTING, 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 27.126.156.0/22 Origin: 55827 UNASSIGNED Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala 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 /14:1185 /15:2031 /16:13456 /17:8224 /18:13676 /19:25243 /20:40449 /21:49550 /22:105000 /23:90150 /24:496095 /25:0 /26:1 /27:0 /28:0 /29:1 /30:3 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 47331 6928 7741 TTNET, TR 12479 5604 6647 UNI2-AS, ES 11492 3831 4795 CABLEONE, US 6327 3167 3360 SHAW, CA 8151 3163 8612 Uninet S.A. de C.V., MX 7155 3115 4027 VIASAT-SP-BACKBONE, US 22773 2964 3933 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2881 3417 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2801 3266 ALJAWWALSTC-AS, SA 30036 2231 2564 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1881 2:1195 3:128 4:20 5:3565 6:74 7:5 8:1502 11:164 12:1740 13:363 14:2201 15:76 16:15 17:322 18:107 20:122 21:1 22:188 23:4758 24:2429 25:2 27:2527 29:19 31:2316 32:107 34:16 35:45 36:1397 37:3771 38:2143 39:589 40:158 41:3768 42:939 43:2075 44:257 45:14954 46:3689 47:319 49:1605 50:1782 51:100 52:1276 54:237 55:753 56:7 57:55 58:1597 59:1045 60:923 61:2186 62:2267 63:1966 64:5339 65:2398 66:5044 67:2906 68:1162 69:4058 70:1384 71:680 72:3153 74:2600 75:1486 76:692 77:2007 78:3691 79:2599 80:1900 81:1638 82:1366 83:1130 84:1266 85:3398 86:705 87:1827 88:2696 89:3007 90:469 91:7320 92:1776 93:2528 94:3127 95:4475 96:1274 97:345 98:999 99:970 100:78 101:1289 102:1443 103:26045 104:3752 105:433 106:715 107:2270 108:712 109:4012 110:1890 111:2807 112:1878 113:1273 114:1448 115:1951 116:1804 117:2230 118:2268 119:1842 120:1089 121:957 122:2316 123:2190 124:1536 125:1857 128:1212 129:1248 130:842 131:2036 132:743 133:356 134:1614 135:293 136:742 137:932 138:2325 139:1177 140:730 141:1183 142:1187 143:1279 144:1263 145:329 146:1394 147:1311 148:2201 149:1423 150:811 151:1073 152:1544 153:412 154:2453 155:1325 156:1507 157:1176 158:909 159:2044 160:2310 161:1164 162:3269 163:996 164:1531 165:1408 166:596 167:1803 168:3561 169:682 170:4257 171:766 172:2384 173:2960 174:993 175:1075 176:3144 177:4363 178:2899 179:1944 180:2317 181:2606 182:3158 183:1586 184:2431 185:18282 186:4153 187:3123 188:3303 189:2901 190:8949 191:1424 192:10658 193:8122 194:6622 195:4740 196:2871 197:1949 198:6035 199:6000 200:7414 201:5298 202:10168 203:10086 204:4610 205:3337 206:3461 207:3331 208:4008 209:4683 210:3966 211:2102 212:3710 213:3366 214:1217 215:62 216:6223 217:2520 218:1054 219:462 220:2043 221:929 222:687 223:1703 End of report