Global R&E Routing Table Report 23:15 GMT Wed 05 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 845194 Prefixes after maximum aggregation (per Origin AS): 321705 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 406947 Total ASes present in the Internet Routing Table: 71022 Prefixes per ASN: 11.90 Origin-only ASes present in the Internet Routing Table: 60961 Origin ASes announcing only one prefix: 25187 Transit ASes present in the Internet Routing Table: 10061 Transit-only ASes present in the Internet Routing Table: 336 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: 1072 Number of instances of unregistered ASNs: 1087 Number of 32-bit ASNs allocated by the RIRs: 35928 Number of 32-bit ASNs visible in the Routing Table: 29826 Prefixes from 32-bit ASNs in the Routing Table: 134933 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: 587 Number of addresses announced to Internet: 3030147840 Equivalent to 180 /8s, 156 /16s and 99 /24s Percentage of available address space announced: 81.8 Percentage of allocated address space announced: 81.8 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: 289340 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 215451 Total APNIC prefixes after maximum aggregation: 62996 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 211666 Unique aggregates announced from the APNIC address blocks: 89475 APNIC Region origin ASes present in the Internet Routing Table: 11439 APNIC Prefixes per ASN: 18.50 APNIC Region origin ASes announcing only one prefix: 3273 APNIC Region transit ASes present in the Internet Routing Table: 1620 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: 6655 Number of APNIC addresses announced to Internet: 773160448 Equivalent to 46 /8s, 21 /16s and 126 /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: 246272 Total ARIN prefixes after maximum aggregation: 112847 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 246663 Unique aggregates announced from the ARIN address blocks: 117934 ARIN Region origin ASes present in the Internet Routing Table: 18754 ARIN Prefixes per ASN: 13.15 ARIN Region origin ASes announcing only one prefix: 6791 ARIN Region transit ASes present in the Internet Routing Table: 1936 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: 3848 Number of ARIN addresses announced to Internet: 1263554304 Equivalent to 75 /8s, 80 /16s and 79 /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: 244164 Total RIPE prefixes after maximum aggregation: 113742 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 240126 Unique aggregates announced from the RIPE address blocks: 141588 RIPE Region origin ASes present in the Internet Routing Table: 27867 RIPE Prefixes per ASN: 8.62 RIPE Region origin ASes announcing only one prefix: 11946 RIPE Region transit ASes present in the Internet Routing Table: 3990 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: 10152 Number of RIPE addresses announced to Internet: 709712640 Equivalent to 42 /8s, 77 /16s and 91 /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: 112441 Total LACNIC prefixes after maximum aggregation: 26423 LACNIC Deaggregation factor: 4.26 Prefixes being announced from the LACNIC address blocks: 113543 Unique aggregates announced from the LACNIC address blocks: 46941 LACNIC Region origin ASes present in the Internet Routing Table: 10750 LACNIC Prefixes per ASN: 10.56 LACNIC Region origin ASes announcing only one prefix: 2686 LACNIC Region transit ASes present in the Internet Routing Table: 2034 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: 8375 Number of LACNIC addresses announced to Internet: 176247040 Equivalent to 10 /8s, 129 /16s and 81 /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: 25782 Total AfriNIC prefixes after maximum aggregation: 4929 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 32609 Unique aggregates announced from the AfriNIC address blocks: 10481 AfriNIC Region origin ASes present in the Internet Routing Table: 1449 AfriNIC Prefixes per ASN: 22.50 AfriNIC Region origin ASes announcing only one prefix: 491 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: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 796 Number of AfriNIC addresses announced to Internet: 107027200 Equivalent to 6 /8s, 97 /16s and 27 /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 5715 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5181 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 2123 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 5089 9369 2248 AMAZON-02, US 11492 4768 316 625 CABLEONE, US 7155 4028 264 32 VIASAT-SP-BACKBONE, US 22773 3936 2999 247 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3446 1773 2423 AKAMAI-AS, US 6327 3351 1317 68 SHAW, CA 30036 2556 372 163 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2536 5039 485 CENTURYLINK-US-LEGACY-QWEST, US 5650 2299 2989 1606 FRONTIER-FRTR, US 5972 2228 451 775 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 7786 1044 3499 TTNET, TR 12479 6569 1725 146 UNI2-AS, ES 20940 3607 3359 190 AKAMAI-ASN1, NL 39891 3266 187 22 ALJAWWALSTC-AS, SA 8551 3152 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2881 2282 892 ROSTELECOM-AS, RU 9009 2421 247 1297 M247, GB 34984 2216 357 586 TELLCOM-AS, TR 13188 1610 100 31 TRIOLAN, UA 58224 1589 885 579 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 8554 3476 579 Uninet S.A. de C.V., MX 10620 3415 526 618 Telmex Colombia S.A., CO 11830 2492 369 62 Instituto Costarricense de Electricidad 7303 1894 2058 69 Telecom Argentina S.A., AR 13999 1697 432 432 Mega Cable, S.A. de C.V., MX 6503 1445 311 477 Axtel, S.A.B. de C.V., MX 28573 1384 2280 225 CLARO S.A., BR 3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1129 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 1587 393 22 LINKdotNET-AS, EG 24835 1445 494 28 RAYA-AS, EG 36992 1194 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 36935 522 522 40 Vodafone-, EG 37342 487 32 1 MOVITEL, MZ 15399 485 48 22 WANANCHI-, KE 23889 439 232 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 8554 3476 579 Uninet S.A. de C.V., MX 47331 7786 1044 3499 TTNET, TR 12479 6569 1725 146 UNI2-AS, ES 7545 5715 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5181 8995 52 CMNET-GD Guangdong Mobile Communication 16509 5089 9369 2248 AMAZON-02, US 11492 4768 316 625 CABLEONE, US 7155 4028 264 32 VIASAT-SP-BACKBONE, US 22773 3936 2999 247 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3607 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 6569 6423 UNI2-AS, ES 9808 5181 5129 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5715 5044 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 7786 4287 TTNET, TR 11492 4768 4143 CABLEONE, US 7155 4028 3996 VIASAT-SP-BACKBONE, US 22773 3936 3689 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 3607 3417 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 211376 UNALLOCATED 5.180.107.0/24 61135 COMNET-DATACENTER-ISTANBUL, 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 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 23.162.177.0/24 Origin: 398549 ZERO-ATTACK-VECTOR-LLC, US Transit: 20473 AS-CHOOPA, US 23.166.241.0/24 Origin: 398942 PZNET, US Transit: 7029 WINDSTREAM, US 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 /11:101 /12:298 /13:585 /14:1187 /15:2033 /16:13468 /17:8221 /18:13655 /19:25265 /20:40661 /21:50220 /22:104964 /23:90211 /24:494244 /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 6967 7786 TTNET, TR 12479 5523 6569 UNI2-AS, ES 11492 3814 4768 CABLEONE, US 6327 3160 3351 SHAW, CA 8151 3117 8554 Uninet S.A. de C.V., MX 7155 3116 4028 VIASAT-SP-BACKBONE, US 22773 2967 3936 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2801 3266 ALJAWWALSTC-AS, SA 8551 2616 3152 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2227 2556 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 5:3538 6:65 7:5 8:1496 11:164 12:1751 13:360 14:2201 15:75 16:15 17:322 18:93 20:122 21:1 22:188 23:4700 24:2398 25:2 27:2520 29:19 31:2338 32:105 34:2 35:40 36:1244 37:3769 38:2082 39:580 40:159 41:3722 42:927 43:2100 44:246 45:14959 46:3655 47:320 49:1599 50:1778 51:100 52:1240 54:225 55:775 56:8 57:59 58:1599 59:1071 60:894 61:2243 62:2243 63:1957 64:5323 65:2377 66:5151 67:2895 68:1151 69:4078 70:1396 71:686 72:3160 74:2589 75:1487 76:687 77:2015 78:3701 79:2286 80:1861 81:1646 82:1347 83:1122 84:1265 85:3393 86:707 87:1805 88:2697 89:2986 90:453 91:7301 92:1750 93:2514 94:3110 95:4440 96:1272 97:347 98:992 99:971 100:76 101:1212 102:1428 103:26033 104:3747 105:436 106:721 107:2265 108:714 109:4038 110:1890 111:2726 112:1858 113:1304 114:1448 115:1935 116:1810 117:2218 118:2260 119:1829 120:1085 121:986 122:2240 123:2196 124:1512 125:1898 128:1170 129:1228 130:843 131:2039 132:742 133:360 134:1591 135:289 136:746 137:928 138:2308 139:1166 140:715 141:1191 142:1158 143:1277 144:1265 145:329 146:1400 147:1295 148:2216 149:1399 150:807 151:1069 152:1551 153:395 154:2419 155:1328 156:1488 157:1174 158:917 159:2042 160:2128 161:1149 162:3268 163:989 164:1529 165:1393 166:586 167:1803 168:3564 169:680 170:4265 171:768 172:2186 173:2937 174:994 175:1072 176:3129 177:4314 178:2882 179:1934 180:2318 181:2603 182:3164 183:1630 184:2426 185:18222 186:4194 187:3176 188:3289 189:2872 190:8883 191:1383 192:10668 193:8048 194:6587 195:4725 196:2885 197:2189 198:6021 199:6010 200:7399 201:5345 202:10186 203:10108 204:4613 205:3339 206:3465 207:3332 208:4017 209:4676 210:3988 211:2069 212:3676 213:3337 214:1220 215:61 216:6158 217:2534 218:1040 219:476 220:2047 221:932 222:691 223:1704 End of report