Global R&E Routing Table Report 23:15 GMT Thu 29 Apr, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 845162 Prefixes after maximum aggregation (per Origin AS): 321601 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 406759 Total ASes present in the Internet Routing Table: 71042 Prefixes per ASN: 11.90 Origin-only ASes present in the Internet Routing Table: 60972 Origin ASes announcing only one prefix: 25216 Transit ASes present in the Internet Routing Table: 10070 Transit-only ASes present in the Internet Routing Table: 334 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: 1027 Number of instances of unregistered ASNs: 1040 Number of 32-bit ASNs allocated by the RIRs: 35867 Number of 32-bit ASNs visible in the Routing Table: 29809 Prefixes from 32-bit ASNs in the Routing Table: 134536 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: 528 Number of addresses announced to Internet: 3031464704 Equivalent to 180 /8s, 176 /16s and 123 /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: 289748 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 215354 Total APNIC prefixes after maximum aggregation: 62955 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 211568 Unique aggregates announced from the APNIC address blocks: 89384 APNIC Region origin ASes present in the Internet Routing Table: 11443 APNIC Prefixes per ASN: 18.49 APNIC Region origin ASes announcing only one prefix: 3269 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: 30 Number of APNIC region 32-bit ASNs visible in the Routing Table: 6656 Number of APNIC addresses announced to Internet: 773122560 Equivalent to 46 /8s, 20 /16s and 234 /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: 245835 Total ARIN prefixes after maximum aggregation: 112732 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 246289 Unique aggregates announced from the ARIN address blocks: 117846 ARIN Region origin ASes present in the Internet Routing Table: 18749 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 6807 ARIN Region transit ASes present in the Internet Routing Table: 1935 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: 3835 Number of ARIN addresses announced to Internet: 1263379456 Equivalent to 75 /8s, 77 /16s and 164 /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: 244735 Total RIPE prefixes after maximum aggregation: 113834 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 240618 Unique aggregates announced from the RIPE address blocks: 141587 RIPE Region origin ASes present in the Internet Routing Table: 27891 RIPE Prefixes per ASN: 8.63 RIPE Region origin ASes announcing only one prefix: 11958 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: 10148 Number of RIPE addresses announced to Internet: 711080192 Equivalent to 42 /8s, 98 /16s and 57 /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: 112403 Total LACNIC prefixes after maximum aggregation: 26388 LACNIC Deaggregation factor: 4.26 Prefixes being announced from the LACNIC address blocks: 113537 Unique aggregates announced from the LACNIC address blocks: 46934 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: 2696 LACNIC Region transit ASes present in the Internet Routing Table: 2045 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: 176390912 Equivalent to 10 /8s, 131 /16s and 131 /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: 25796 Total AfriNIC prefixes after maximum aggregation: 4935 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 32622 Unique aggregates announced from the AfriNIC address blocks: 10524 AfriNIC Region origin ASes present in the Internet Routing Table: 1449 AfriNIC Prefixes per ASN: 22.51 AfriNIC Region origin ASes announcing only one prefix: 486 AfriNIC Region transit ASes present in the Internet Routing Table: 293 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: 795 Number of AfriNIC addresses announced to Internet: 107065088 Equivalent to 6 /8s, 97 /16s and 175 /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 5724 782 670 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5182 8995 52 CMNET-GD Guangdong Mobile Communication 7713 3518 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 7552 3492 1330 20 VIETEL-AS-AP Viettel Group, VN 45899 2886 1896 54 VNPT-AS-VN VNPT Corp, VN 9498 2338 481 237 BBIL-AP BHARTI Airtel Ltd., IN 4766 2208 11358 561 KIXS-AS-KR Korea Telecom, KR 4755 2119 441 190 TATACOMM-AS TATA Communications formerl 45090 2098 1197 72 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 5059 9359 2231 AMAZON-02, US 11492 4771 316 664 CABLEONE, US 7155 4030 264 32 VIASAT-SP-BACKBONE, US 22773 3938 3007 248 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3470 1789 2438 AKAMAI-AS, US 6327 3361 1317 70 SHAW, CA 30036 2560 373 132 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2535 5039 485 CENTURYLINK-US-LEGACY-QWEST, US 5650 2321 2992 1623 FRONTIER-FRTR, US 5972 2233 452 781 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 7794 1045 3493 TTNET, TR 12479 6563 1725 145 UNI2-AS, ES 20940 3597 3359 190 AKAMAI-ASN1, NL 8551 3537 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3266 187 22 ALJAWWALSTC-AS, SA 12389 2886 2284 897 ROSTELECOM-AS, RU 9009 2421 247 1298 M247, GB 34984 2216 357 586 TELLCOM-AS, TR 13188 1610 100 31 TRIOLAN, UA 61317 1595 281 795 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 8534 3476 577 Uninet S.A. de C.V., MX 10620 3417 527 609 Telmex Colombia S.A., CO 11830 2494 369 62 Instituto Costarricense de Electricidad 7303 1970 2058 70 Telecom Argentina S.A., AR 13999 1689 448 425 Mega Cable, S.A. de C.V., MX 6503 1445 311 477 Axtel, S.A.B. de C.V., MX 28573 1383 2280 225 CLARO S.A., BR 3816 1229 644 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1131 377 39 Telefonica del Peru S.A.A., PE 11664 1002 210 400 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 1185 1473 176 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 730 68 11 ORANGE-COTE-IVOIRE, CI 6713 549 1863 34 IAM-AS, MA 36935 521 522 40 Vodafone-, EG 37342 487 32 1 MOVITEL, MZ 15399 483 48 24 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 8534 3476 577 Uninet S.A. de C.V., MX 47331 7794 1045 3493 TTNET, TR 12479 6563 1725 145 UNI2-AS, ES 7545 5724 782 670 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5182 8995 52 CMNET-GD Guangdong Mobile Communication 16509 5059 9359 2231 AMAZON-02, US 11492 4771 316 664 CABLEONE, US 7155 4030 264 32 VIASAT-SP-BACKBONE, US 22773 3938 3007 248 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3597 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 6563 6418 UNI2-AS, ES 9808 5182 5130 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5724 5054 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 7794 4301 TTNET, TR 11492 4771 4107 CABLEONE, US 7155 4030 3998 VIASAT-SP-BACKBONE, US 22773 3938 3690 ASN-CXA-ALL-CCI-22773-RDC, US 8551 3537 3497 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3492 3472 VIETEL-AS-AP Viettel Group, VN 7713 3518 3462 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 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 /13:584 /14:1188 /15:2035 /16:13475 /17:8226 /18:13652 /19:25265 /20:40680 /21:50200 /22:104873 /23:90114 /24:494390 /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 6973 7794 TTNET, TR 12479 5515 6563 UNI2-AS, ES 11492 3820 4771 CABLEONE, US 6327 3168 3361 SHAW, CA 7155 3118 4030 VIASAT-SP-BACKBONE, US 8151 3099 8534 Uninet S.A. de C.V., MX 8551 3001 3537 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2965 3938 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2801 3266 ALJAWWALSTC-AS, SA 30036 2232 2560 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1882 2:1101 3:122 4:19 5:3529 6:65 7:5 8:1495 11:164 12:1752 13:359 14:2200 15:75 16:15 17:322 18:93 20:122 21:1 22:188 23:4675 24:2398 25:2 27:2518 29:19 31:2336 32:107 34:2 35:39 36:1243 37:3772 38:2073 39:580 40:158 41:3774 42:926 43:2106 44:241 45:14980 46:3661 47:320 49:1598 50:1773 51:92 52:1238 54:225 55:774 56:8 57:59 58:1598 59:1067 60:889 61:2240 62:2236 63:1959 64:5314 65:2384 66:5139 67:2887 68:1155 69:4072 70:1401 71:686 72:3166 74:2583 75:1487 76:686 77:2024 78:3685 79:2700 80:1875 81:1649 82:1360 83:1118 84:1266 85:3385 86:700 87:1806 88:2698 89:3015 90:448 91:7309 92:1750 93:2520 94:3112 95:4446 96:1271 97:346 98:991 99:971 100:75 101:1208 102:1422 103:25997 104:3743 105:436 106:721 107:2265 108:708 109:4003 110:1897 111:2729 112:1859 113:1302 114:1438 115:1930 116:1809 117:2218 118:2258 119:1836 120:1074 121:987 122:2238 123:2202 124:1513 125:1899 128:1311 129:1093 130:838 131:2031 132:742 133:356 134:1589 135:289 136:749 137:922 138:2300 139:1166 140:715 141:1190 142:1155 143:1283 144:1261 145:329 146:1400 147:1298 148:2218 149:1398 150:807 151:1072 152:1554 153:394 154:2415 155:1330 156:1483 157:1175 158:915 159:2044 160:2129 161:1144 162:3257 163:990 164:1524 165:1397 166:585 167:1811 168:3567 169:679 170:4222 171:771 172:2156 173:2933 174:993 175:1072 176:3119 177:4331 178:2892 179:1940 180:2316 181:2605 182:3165 183:1642 184:2429 185:18225 186:4203 187:3211 188:3300 189:2854 190:8905 191:1387 192:10669 193:8040 194:6595 195:4722 196:2870 197:2179 198:6015 199:6007 200:7387 201:5315 202:10188 203:10103 204:4619 205:3336 206:3488 207:3309 208:4012 209:4649 210:3979 211:2072 212:3676 213:3334 214:1225 215:61 216:6170 217:2529 218:1040 219:476 220:2054 221:933 222:691 223:1704 End of report