IPv4 R&E Routing Table Report 23:05 GMT Mon 20 Feb, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 904749 Prefixes after maximum aggregation (per Origin AS): 345124 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445765 Number of IPv4 prefixes with a valid ROA: 374297 Number of IPv4 prefixes with an invalid ROA: 1529 Number of IPv4 prefixes with no ROA: 528923 Total ASes present in the Internet Routing Table: 73962 Prefixes per ASN: 12.23 Origin-only ASes present in the Internet Routing Table: 63502 Origin ASes announcing only one prefix: 26095 Transit ASes present in the Internet Routing Table: 10460 Transit-only ASes present in the Internet Routing Table: 445 Paths with bogon ASNs present in the IPv4 Routing Table: 30 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1063 Number of instances of unregistered ASNs: 1079 Number of 32-bit ASNs allocated by the RIRs: 41223 Number of 32-bit ASNs visible in the Routing Table: 34138 Prefixes from 32-bit ASNs in the Routing Table: 166832 Number of bogon 32-bit ASNs visible in the Routing Table: 38 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 579 Number of addresses announced to Internet: 3061754368 Equivalent to 182 /8s, 126 /16s and 170 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 304438 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234291 Total APNIC prefixes after maximum aggregation: 68210 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229276 Unique aggregates announced from the APNIC address blocks: 97654 APNIC Region origin ASes present in the Internet Routing Table: 13221 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 3841 APNIC Region transit ASes present in the Internet Routing Table: 1775 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8562 Number of APNIC addresses announced to Internet: 773179136 Equivalent to 46 /8s, 21 /16s and 199 /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, 131072-151865 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: 266287 Total ARIN prefixes after maximum aggregation: 121134 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268347 Unique aggregates announced from the ARIN address blocks: 130192 ARIN Region origin ASes present in the Internet Routing Table: 19006 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6972 ARIN Region transit ASes present in the Internet Routing Table: 1893 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4728 Number of ARIN addresses announced to Internet: 1285609728 Equivalent to 76 /8s, 160 /16s and 217 /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: 257122 Total RIPE prefixes after maximum aggregation: 121027 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253510 Unique aggregates announced from the RIPE address blocks: 156508 RIPE Region origin ASes present in the Internet Routing Table: 28213 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12033 RIPE Region transit ASes present in the Internet Routing Table: 3979 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11014 Number of RIPE addresses announced to Internet: 718342144 Equivalent to 42 /8s, 209 /16s and 8 /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: 116646 Total LACNIC prefixes after maximum aggregation: 28252 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 115904 Unique aggregates announced from the LACNIC address blocks: 48922 LACNIC Region origin ASes present in the Internet Routing Table: 10956 LACNIC Prefixes per ASN: 10.58 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2272 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8769 Number of LACNIC addresses announced to Internet: 176270848 Equivalent to 10 /8s, 129 /16s and 174 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29340 Total AfriNIC prefixes after maximum aggregation: 5731 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 37133 Unique aggregates announced from the AfriNIC address blocks: 12041 AfriNIC Region origin ASes present in the Internet Routing Table: 1719 AfriNIC Prefixes per ASN: 21.60 AfriNIC Region origin ASes announcing only one prefix: 596 AfriNIC Region transit ASes present in the Internet Routing Table: 336 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1065 Number of AfriNIC addresses announced to Internet: 108005888 Equivalent to 6 /8s, 112 /16s and 10 /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 9808 9446 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5835 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3666 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3378 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2778 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2298 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 7949 10726 2895 AMAZON-02, US 11492 4527 300 621 CABLEONE, US 7155 3952 279 45 VIASAT-SP-BACKBONE, US 22773 3648 3063 285 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3301 1663 2415 AKAMAI-AS, US 749 3037 50571 2304 DNIC-AS-00749, US 396982 2608 3584 354 GOOGLE-CLOUD-PLATFORM, US 7018 2597 24143 1577 ATT-INTERNET4, US 30036 2541 364 400 MEDIACOM-ENTERPRISE-BUSINESS, 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 12479 7076 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4032 3399 167 AKAMAI-ASN1, NL 8551 3896 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2653 252 1376 M247, RO 34984 2265 359 609 TELLCOM-AS, TR 6849 2259 339 19 UKRTELNET, UA 58224 1839 946 559 TCI, IR 13188 1607 100 27 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 10677 3343 606 Uninet S.A. de C.V., MX 10620 3477 507 862 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2258 375 606 Mega Cable, S.A. de C.V., MX 28573 1346 2326 259 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1020 2498 45 TIM SA, BR 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 24835 1542 533 30 RAYA-AS, EG 24863 1491 393 19 LINKdotNET-AS, EG 36992 1349 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1001 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 497 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 10677 3343 606 Uninet S.A. de C.V., MX 9808 9446 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7949 10726 2895 AMAZON-02, US 12479 7076 1706 146 UNI2-AS, ES 7545 5835 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4527 300 621 CABLEONE, US 20940 4032 3399 167 AKAMAI-ASN1, NL 7155 3952 279 45 VIASAT-SP-BACKBONE, US 8551 3896 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9446 9398 CHINAMOBILE-CN China Mobile Communications Grou 12479 7076 6930 UNI2-AS, ES 7545 5835 5129 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7949 5054 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3952 3907 VIASAT-SP-BACKBONE, US 11492 4527 3906 CABLEONE, US 20940 4032 3865 AKAMAI-ASN1, NL 8551 3896 3859 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3666 3645 VIETEL-AS-AP Viettel Group, VN 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /10:38 /11:103 /12:299 /13:577 /14:1200 /15:2072 /16:13431 /17:8204 /18:13712 /19:24797 /20:42881 /21:50798 /22:108897 /23:96647 /24:541055 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6136 7076 UNI2-AS, ES 8151 4827 10677 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3443 4527 CABLEONE, US 8551 3368 3896 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3952 VIASAT-SP-BACKBONE, US 22773 2703 3648 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2198 2541 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2105 2259 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1640 2:1228 3:168 4:5 5:4335 6:114 7:5 8:1513 9:1 11:172 12:1585 13:383 14:2343 15:293 16:103 17:365 18:394 20:249 21:4 22:188 23:6059 24:2492 25:6 27:2520 29:19 31:2502 32:107 34:9 35:104 36:1920 37:4616 38:4169 39:839 40:153 41:4015 42:1055 43:2312 44:302 45:16344 46:4201 47:374 49:1734 50:1820 51:383 52:1578 54:395 55:868 56:8 57:88 58:1665 59:1113 60:987 61:2461 62:2627 63:1933 64:5666 65:2318 66:4893 67:3036 68:1351 69:4140 70:1256 71:660 72:2986 74:2592 75:1458 76:592 77:2402 78:1841 79:3169 80:2082 81:1725 82:1499 83:1242 84:1507 85:2988 86:755 87:1969 88:1228 89:3612 90:609 91:7664 92:2012 93:2590 94:3533 95:3952 96:1335 97:346 98:1162 99:744 100:75 101:1296 102:2601 103:30929 104:4501 105:485 106:845 107:2540 108:906 109:4396 110:2077 111:3278 112:2031 113:1482 114:1611 115:2013 116:1879 117:2554 118:2295 119:1923 120:1739 121:1046 122:2581 123:2135 124:1562 125:2336 128:1266 129:1059 130:986 131:1991 132:826 133:412 134:1908 135:297 136:861 137:932 138:2565 139:1542 140:1181 141:1468 142:1416 143:1475 144:1208 145:349 146:1870 147:1557 148:2269 149:1894 150:867 151:1142 152:1954 153:484 154:3908 155:1420 156:1674 157:1299 158:1005 159:2262 160:2546 161:1450 162:3540 163:1484 164:1580 165:1684 166:840 167:1735 168:3854 169:921 170:4560 171:883 172:3502 173:2964 174:1032 175:1161 176:3719 177:4560 178:3579 179:2163 180:2400 181:3398 182:3249 183:1934 184:2355 185:20049 186:4654 187:3916 188:4122 189:3486 190:9111 191:1447 192:10931 193:8809 194:7235 195:5100 196:3121 197:2398 198:5880 199:6086 200:7638 201:5610 202:10224 203:9987 204:4596 205:3500 206:3785 207:3381 208:4069 209:4808 210:4177 211:2385 212:4102 213:3547 214:1088 215:55 216:6592 217:2640 218:1264 219:400 220:1766 221:972 222:666 223:2122 End of report