Global R&E Routing Table Report 23:15 GMT Thu 06 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 845179 Prefixes after maximum aggregation (per Origin AS): 321858 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 407022 Total ASes present in the Internet Routing Table: 71076 Prefixes per ASN: 11.89 Origin-only ASes present in the Internet Routing Table: 61012 Origin ASes announcing only one prefix: 25211 Transit ASes present in the Internet Routing Table: 10064 Transit-only ASes present in the Internet Routing Table: 339 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: 1095 Number of instances of unregistered ASNs: 1110 Number of 32-bit ASNs allocated by the RIRs: 35949 Number of 32-bit ASNs visible in the Routing Table: 29861 Prefixes from 32-bit ASNs in the Routing Table: 134992 Number of bogon 32-bit ASNs visible in the Routing Table: 36 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 585 Number of addresses announced to Internet: 3030711040 Equivalent to 180 /8s, 164 /16s and 251 /24s Percentage of available address space announced: 81.9 Percentage of allocated address space announced: 81.9 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: 289673 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 215443 Total APNIC prefixes after maximum aggregation: 62997 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 211649 Unique aggregates announced from the APNIC address blocks: 89482 APNIC Region origin ASes present in the Internet Routing Table: 11444 APNIC Prefixes per ASN: 18.49 APNIC Region origin ASes announcing only one prefix: 3277 APNIC Region transit ASes present in the Internet Routing Table: 1627 Average APNIC Region AS path length visible: 3.1 Max APNIC Region AS path length visible: 30 Number of APNIC region 32-bit ASNs visible in the Routing Table: 6660 Number of APNIC addresses announced to Internet: 773186048 Equivalent to 46 /8s, 21 /16s and 226 /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, 131072-143673 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: 246245 Total ARIN prefixes after maximum aggregation: 112808 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 246625 Unique aggregates announced from the ARIN address blocks: 117938 ARIN Region origin ASes present in the Internet Routing Table: 18763 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 6799 ARIN Region transit ASes present in the Internet Routing Table: 1934 Average ARIN Region AS path length visible: 3.5 Max ARIN Region AS path length visible: 30 Number of ARIN region 32-bit ASNs visible in the Routing Table: 3852 Number of ARIN addresses announced to Internet: 1263573760 Equivalent to 75 /8s, 80 /16s and 155 /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: 244647 Total RIPE prefixes after maximum aggregation: 113941 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 240580 Unique aggregates announced from the RIPE address blocks: 141648 RIPE Region origin ASes present in the Internet Routing Table: 27899 RIPE Prefixes per ASN: 8.62 RIPE Region origin ASes announcing only one prefix: 11964 RIPE Region transit ASes present in the Internet Routing Table: 3995 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: 10166 Number of RIPE addresses announced to Internet: 710241536 Equivalent to 42 /8s, 85 /16s and 109 /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: 112145 Total LACNIC prefixes after maximum aggregation: 26425 LACNIC Deaggregation factor: 4.24 Prefixes being announced from the LACNIC address blocks: 113281 Unique aggregates announced from the LACNIC address blocks: 46942 LACNIC Region origin ASes present in the Internet Routing Table: 10751 LACNIC Prefixes per ASN: 10.54 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2025 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: 8380 Number of LACNIC addresses announced to Internet: 176250624 Equivalent to 10 /8s, 129 /16s and 95 /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: 25592 Total AfriNIC prefixes after maximum aggregation: 4917 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 32459 Unique aggregates announced from the AfriNIC address blocks: 10486 AfriNIC Region origin ASes present in the Internet Routing Table: 1452 AfriNIC Prefixes per ASN: 22.35 AfriNIC Region origin ASes announcing only one prefix: 495 AfriNIC Region transit ASes present in the Internet Routing Table: 297 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: 803 Number of AfriNIC addresses announced to Internet: 107014912 Equivalent to 6 /8s, 96 /16s and 235 /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 5713 782 670 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5194 8995 52 CMNET-GD Guangdong Mobile Communication 7713 3519 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 7552 3495 1330 20 VIETEL-AS-AP Viettel Group, VN 45899 2885 1896 54 VNPT-AS-VN VNPT Corp, VN 9498 2339 481 237 BBIL-AP BHARTI Airtel Ltd., IN 4766 2206 11358 560 KIXS-AS-KR Korea Telecom, KR 4755 2124 441 192 TATACOMM-AS TATA Communications formerl 45090 2097 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 5074 9366 2241 AMAZON-02, US 11492 4774 316 611 CABLEONE, US 7155 4027 264 32 VIASAT-SP-BACKBONE, US 22773 3929 2998 244 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3453 1776 2428 AKAMAI-AS, US 6327 3352 1317 67 SHAW, CA 30036 2552 372 193 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2538 5039 487 CENTURYLINK-US-LEGACY-QWEST, US 5650 2292 2989 1600 FRONTIER-FRTR, US 5972 2230 451 776 DNIC-ASBLK-05800-06055, 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 7783 1044 3503 TTNET, TR 12479 6576 1725 146 UNI2-AS, ES 20940 3601 3359 190 AKAMAI-ASN1, NL 8551 3395 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3266 187 22 ALJAWWALSTC-AS, SA 12389 2881 2282 892 ROSTELECOM-AS, RU 9009 2422 247 1298 M247, GB 34984 2215 357 585 TELLCOM-AS, TR 13188 1610 100 31 TRIOLAN, UA 58224 1591 886 579 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 8558 3476 579 Uninet S.A. de C.V., MX 10620 3417 526 616 Telmex Colombia S.A., CO 11830 2492 369 62 Instituto Costarricense de Electricidad 13999 1691 431 434 Mega Cable, S.A. de C.V., MX 7303 1689 2058 69 Telecom Argentina S.A., AR 6503 1445 311 477 Axtel, S.A.B. de C.V., MX 28573 1364 2280 225 CLARO S.A., BR 3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1128 377 38 Telefonica del Peru S.A.A., PE 11664 1003 210 401 Techtel LMDS Comunicaciones Interactiva 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 1591 393 22 LINKdotNET-AS, EG 24835 1425 458 25 RAYA-AS, EG 36992 1195 1473 176 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 731 68 11 ORANGE-COTE-IVOIRE, CI 6713 594 1863 34 IAM-AS, MA 37342 487 32 1 MOVITEL, MZ 15399 485 48 22 WANANCHI-, KE 23889 439 232 16 MauritiusTelecom, MU 36935 384 519 38 Vodafone-, EG 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 8558 3476 579 Uninet S.A. de C.V., MX 47331 7783 1044 3503 TTNET, TR 12479 6576 1725 146 UNI2-AS, ES 7545 5713 782 670 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5194 8995 52 CMNET-GD Guangdong Mobile Communication 16509 5074 9366 2241 AMAZON-02, US 11492 4774 316 611 CABLEONE, US 7155 4027 264 32 VIASAT-SP-BACKBONE, US 22773 3929 2998 244 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3601 3359 190 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 6576 6430 UNI2-AS, ES 9808 5194 5142 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5713 5043 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 7783 4280 TTNET, TR 11492 4774 4163 CABLEONE, US 7155 4027 3995 VIASAT-SP-BACKBONE, US 22773 3929 3685 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3495 3475 VIETEL-AS-AP Viettel Group, VN 7713 3519 3463 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 20940 3601 3411 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 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 3577 UNALLOCATED 12.19.197.0/24 7018 ATT-INTERNET4, 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 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 27.126.156.0/23 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 /11:101 /12:298 /13:585 /14:1187 /15:2035 /16:13473 /17:8227 /18:13649 /19:25250 /20:40635 /21:50060 /22:104947 /23:90163 /24:494488 /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 6964 7783 TTNET, TR 12479 5527 6576 UNI2-AS, ES 11492 3819 4774 CABLEONE, US 6327 3162 3352 SHAW, CA 8151 3121 8558 Uninet S.A. de C.V., MX 7155 3115 4027 VIASAT-SP-BACKBONE, US 22773 2968 3929 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2859 3395 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2801 3266 ALJAWWALSTC-AS, SA 30036 2223 2552 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1887 2:1195 3:122 4:19 5:3537 6:65 7:5 8:1495 11:164 12:1752 13:361 14:2201 15:75 16:15 17:324 18:93 20:122 21:1 22:188 23:4705 24:2405 25:2 27:2518 29:19 31:2337 32:105 34:2 35:40 36:1244 37:3774 38:2080 39:581 40:159 41:3716 42:927 43:2101 44:247 45:14948 46:3689 47:320 49:1599 50:1778 51:100 52:1238 54:224 55:754 56:8 57:59 58:1599 59:1070 60:896 61:2243 62:2249 63:1957 64:5330 65:2380 66:5144 67:2896 68:1151 69:4078 70:1390 71:686 72:3174 74:2589 75:1486 76:687 77:2022 78:3688 79:2531 80:1862 81:1635 82:1358 83:1122 84:1267 85:3380 86:708 87:1806 88:2684 89:2986 90:453 91:7321 92:1751 93:2517 94:3110 95:4440 96:1274 97:347 98:992 99:970 100:76 101:1212 102:1437 103:26024 104:3749 105:428 106:721 107:2263 108:715 109:4037 110:1891 111:2726 112:1859 113:1307 114:1448 115:1927 116:1809 117:2218 118:2263 119:1830 120:1085 121:987 122:2239 123:2198 124:1512 125:1897 128:1172 129:1227 130:843 131:2024 132:736 133:360 134:1590 135:289 136:737 137:930 138:2310 139:1166 140:723 141:1191 142:1158 143:1278 144:1266 145:329 146:1400 147:1300 148:2217 149:1397 150:807 151:1067 152:1551 153:396 154:2415 155:1335 156:1488 157:1176 158:913 159:2044 160:2122 161:1157 162:3269 163:989 164:1533 165:1394 166:586 167:1805 168:3564 169:679 170:4269 171:768 172:2192 173:2941 174:994 175:1071 176:3134 177:4310 178:2889 179:1928 180:2316 181:2605 182:3165 183:1635 184:2426 185:18241 186:4179 187:3154 188:3287 189:2875 190:8890 191:1393 192:10681 193:8063 194:6586 195:4728 196:2887 197:2189 198:6014 199:6009 200:7400 201:5346 202:10187 203:10094 204:4618 205:3294 206:3467 207:3338 208:4023 209:4683 210:3987 211:2068 212:3667 213:3342 214:1216 215:60 216:6166 217:2508 218:1040 219:474 220:2047 221:932 222:691 223:1701 End of report