IPv4 R&E Routing Table Report 23:05 GMT Sat 18 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: 905022 Prefixes after maximum aggregation (per Origin AS): 345232 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445906 Number of IPv4 prefixes with a valid ROA: 373968 Number of IPv4 prefixes with an invalid ROA: 1543 Number of IPv4 prefixes with no ROA: 529511 Total ASes present in the Internet Routing Table: 73950 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63504 Origin ASes announcing only one prefix: 26084 Transit ASes present in the Internet Routing Table: 10446 Transit-only ASes present in the Internet Routing Table: 442 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 1058 Number of instances of unregistered ASNs: 1068 Number of 32-bit ASNs allocated by the RIRs: 41215 Number of 32-bit ASNs visible in the Routing Table: 34114 Prefixes from 32-bit ASNs in the Routing Table: 166747 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 578 Number of addresses announced to Internet: 3061704192 Equivalent to 182 /8s, 125 /16s and 230 /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: 304709 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234282 Total APNIC prefixes after maximum aggregation: 68281 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229243 Unique aggregates announced from the APNIC address blocks: 97777 APNIC Region origin ASes present in the Internet Routing Table: 13200 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3823 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: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8538 Number of APNIC addresses announced to Internet: 773006848 Equivalent to 46 /8s, 19 /16s and 38 /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: 266377 Total ARIN prefixes after maximum aggregation: 121089 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268396 Unique aggregates announced from the ARIN address blocks: 130140 ARIN Region origin ASes present in the Internet Routing Table: 19005 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6970 ARIN Region transit ASes present in the Internet Routing Table: 1891 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: 4724 Number of ARIN addresses announced to Internet: 1285489152 Equivalent to 76 /8s, 159 /16s and 2 /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: 257173 Total RIPE prefixes after maximum aggregation: 121101 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253536 Unique aggregates announced from the RIPE address blocks: 156563 RIPE Region origin ASes present in the Internet Routing Table: 28224 RIPE Prefixes per ASN: 8.98 RIPE Region origin ASes announcing only one prefix: 12041 RIPE Region transit ASes present in the Internet Routing Table: 3983 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: 11018 Number of RIPE addresses announced to Internet: 718428928 Equivalent to 42 /8s, 210 /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: 116853 Total LACNIC prefixes after maximum aggregation: 28248 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 116103 Unique aggregates announced from the LACNIC address blocks: 48892 LACNIC Region origin ASes present in the Internet Routing Table: 10960 LACNIC Prefixes per ASN: 10.59 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2256 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: 8771 Number of LACNIC addresses announced to Internet: 176390400 Equivalent to 10 /8s, 131 /16s and 129 /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: 29279 Total AfriNIC prefixes after maximum aggregation: 5742 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37166 Unique aggregates announced from the AfriNIC address blocks: 12084 AfriNIC Region origin ASes present in the Internet Routing Table: 1717 AfriNIC Prefixes per ASN: 21.65 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 335 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: 1063 Number of AfriNIC addresses announced to Internet: 108039936 Equivalent to 6 /8s, 112 /16s and 143 /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 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5834 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3662 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 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 2356 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 7951 10728 2879 AMAZON-02, US 11492 4535 300 597 CABLEONE, US 7155 3952 279 45 VIASAT-SP-BACKBONE, US 22773 3649 3063 285 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3318 1674 2421 AKAMAI-AS, US 749 3036 50571 2303 DNIC-AS-00749, US 396982 2605 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2603 24143 1581 ATT-INTERNET4, US 30036 2555 366 365 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 4033 3399 167 AKAMAI-ASN1, NL 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2609 250 1423 M247, RO 34984 2265 359 609 TELLCOM-AS, TR 6849 2256 339 19 UKRTELNET, UA 58224 1840 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 11071 3347 585 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2260 369 64 Instituto Costarricense de Electricidad 13999 2255 374 604 Mega Cable, S.A. de C.V., MX 28573 1349 2328 261 Claro NXT Telecomunicacoes Ltda, BR 6503 1297 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 1096 179 458 Techtel LMDS Comunicaciones Interactiva 26615 1019 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 1440 393 19 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1000 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 11071 3347 585 Uninet S.A. de C.V., MX 9808 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7951 10728 2879 AMAZON-02, US 12479 7076 1706 146 UNI2-AS, ES 7545 5834 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4535 300 597 CABLEONE, US 20940 4033 3399 167 AKAMAI-ASN1, NL 7155 3952 279 45 VIASAT-SP-BACKBONE, US 8551 3892 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 9444 9396 CHINAMOBILE-CN China Mobile Communications Grou 12479 7076 6930 UNI2-AS, ES 7545 5834 5128 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7951 5072 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4535 3938 CABLEONE, US 7155 3952 3907 VIASAT-SP-BACKBONE, US 20940 4033 3866 AKAMAI-ASN1, NL 8551 3892 3855 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3662 3641 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 /14:1201 /15:2072 /16:13430 /17:8200 /18:13714 /19:24811 /20:42896 /21:50885 /22:108891 /23:96672 /24:541195 /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 5111 11071 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3451 4535 CABLEONE, US 8551 3364 3892 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3952 VIASAT-SP-BACKBONE, US 22773 2704 3649 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2212 2555 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2102 2256 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1651 2:1227 3:168 4:5 5:4335 6:115 7:5 8:1513 9:1 11:172 12:1585 13:382 14:2332 15:293 16:103 17:365 18:395 20:249 21:4 22:188 23:6054 24:2495 25:4 27:2523 29:19 31:2497 32:107 34:9 35:104 36:1919 37:4628 38:4158 39:840 40:153 41:4023 42:1059 43:2301 44:301 45:16357 46:4199 47:375 49:1732 50:1831 51:383 52:1577 54:396 55:870 56:8 57:88 58:1674 59:1114 60:986 61:2460 62:2625 63:1934 64:5662 65:2316 66:4922 67:3043 68:1350 69:4140 70:1262 71:660 72:2987 74:2592 75:1458 76:597 77:2401 78:1839 79:3171 80:2083 81:1727 82:1493 83:1242 84:1507 85:2984 86:755 87:1970 88:1233 89:3611 90:609 91:7658 92:2011 93:2593 94:3525 95:3953 96:1335 97:346 98:1161 99:744 100:75 101:1297 102:2608 103:30859 104:4561 105:485 106:844 107:2527 108:911 109:4387 110:2075 111:3276 112:2040 113:1483 114:1605 115:2014 116:1878 117:2552 118:2294 119:1922 120:1738 121:1046 122:2588 123:2137 124:1561 125:2343 128:1267 129:1059 130:988 131:1974 132:785 133:411 134:1904 135:294 136:861 137:929 138:2549 139:1541 140:1178 141:1474 142:1415 143:1476 144:1203 145:349 146:1864 147:1554 148:2251 149:1895 150:867 151:1142 152:1956 153:481 154:3906 155:1417 156:1676 157:1298 158:1004 159:2259 160:2538 161:1448 162:3540 163:1528 164:1579 165:1684 166:846 167:1736 168:3817 169:920 170:4552 171:883 172:3498 173:2972 174:1031 175:1159 176:3720 177:4538 178:3580 179:2155 180:2404 181:3398 182:3251 183:1934 184:2340 185:20031 186:4629 187:3935 188:4121 189:3494 190:9104 191:1442 192:10917 193:8817 194:7240 195:5097 196:3121 197:2408 198:5885 199:6083 200:7662 201:5870 202:10233 203:9999 204:4599 205:3509 206:3779 207:3383 208:4068 209:4798 210:4174 211:2385 212:4094 213:3548 214:1086 215:55 216:6598 217:2638 218:1256 219:400 220:1764 221:972 222:666 223:2120 End of report