IPv4 R&E Routing Table Report 23:05 GMT Thu 16 Mar, 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: 907926 Prefixes after maximum aggregation (per Origin AS): 345590 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446510 Number of IPv4 prefixes with a valid ROA: 378351 Number of IPv4 prefixes with an invalid ROA: 1652 Number of IPv4 prefixes with no ROA: 527923 Total ASes present in the Internet Routing Table: 74034 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63588 Origin ASes announcing only one prefix: 26104 Transit ASes present in the Internet Routing Table: 10446 Transit-only ASes present in the Internet Routing Table: 444 Paths with bogon ASNs present in the IPv4 Routing Table: 29 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: 1103 Number of instances of unregistered ASNs: 1118 Number of 32-bit ASNs allocated by the RIRs: 41465 Number of 32-bit ASNs visible in the Routing Table: 34265 Prefixes from 32-bit ASNs in the Routing Table: 167865 Number of bogon 32-bit ASNs visible in the Routing Table: 43 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 514 Number of addresses announced to Internet: 3062595328 Equivalent to 182 /8s, 139 /16s and 127 /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: 305413 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235185 Total APNIC prefixes after maximum aggregation: 68234 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229857 Unique aggregates announced from the APNIC address blocks: 97708 APNIC Region origin ASes present in the Internet Routing Table: 13255 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 3865 APNIC Region transit ASes present in the Internet Routing Table: 1778 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8600 Number of APNIC addresses announced to Internet: 773206272 Equivalent to 46 /8s, 22 /16s and 49 /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: 266778 Total ARIN prefixes after maximum aggregation: 121213 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268901 Unique aggregates announced from the ARIN address blocks: 130147 ARIN Region origin ASes present in the Internet Routing Table: 19009 ARIN Prefixes per ASN: 14.15 ARIN Region origin ASes announcing only one prefix: 6975 ARIN Region transit ASes present in the Internet Routing Table: 1889 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4742 Number of ARIN addresses announced to Internet: 1285913600 Equivalent to 76 /8s, 165 /16s and 124 /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: 257885 Total RIPE prefixes after maximum aggregation: 121397 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254203 Unique aggregates announced from the RIPE address blocks: 157084 RIPE Region origin ASes present in the Internet Routing Table: 28248 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12016 RIPE Region transit ASes present in the Internet Routing Table: 3968 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11075 Number of RIPE addresses announced to Internet: 718358784 Equivalent to 42 /8s, 209 /16s and 73 /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: 117452 Total LACNIC prefixes after maximum aggregation: 28179 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116843 Unique aggregates announced from the LACNIC address blocks: 49017 LACNIC Region origin ASes present in the Internet Routing Table: 10967 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2285 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8777 Number of LACNIC addresses announced to Internet: 176605184 Equivalent to 10 /8s, 134 /16s and 200 /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: 29523 Total AfriNIC prefixes after maximum aggregation: 5784 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37608 Unique aggregates announced from the AfriNIC address blocks: 12146 AfriNIC Region origin ASes present in the Internet Routing Table: 1724 AfriNIC Prefixes per ASN: 21.81 AfriNIC Region origin ASes announcing only one prefix: 594 AfriNIC Region transit ASes present in the Internet Routing Table: 331 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: 1071 Number of AfriNIC addresses announced to Internet: 108123904 Equivalent to 6 /8s, 113 /16s and 215 /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 9463 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5761 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3362 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2854 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2174 440 214 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 8093 10763 2874 AMAZON-02, US 11492 4528 300 621 CABLEONE, US 7155 3966 279 45 VIASAT-SP-BACKBONE, US 22773 3645 3065 297 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3506 1320 64 SHAW, CA 16625 3162 1590 2337 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2622 3587 355 GOOGLE-CLOUD-PLATFORM, US 7018 2556 24118 1563 ATT-INTERNET4, US 30036 2505 361 493 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 7066 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4040 3399 163 AKAMAI-ASN1, NL 8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2901 2292 912 ROSTELECOM-AS, RU 9009 2638 250 1381 M247, RO 34984 2268 359 610 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1848 949 545 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 11179 3341 589 Uninet S.A. de C.V., MX 10620 3473 504 880 Telmex Colombia S.A., CO 13999 2290 373 610 Mega Cable, S.A. de C.V., MX 11830 2265 369 64 Instituto Costarricense de Electricidad 28573 1371 2325 248 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1129 370 22 Telefonica del Peru S.A.A., PE 11664 1095 180 461 Techtel LMDS Comunicaciones Interactiva 26615 1030 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 24863 1573 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1017 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 24757 495 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 11179 3341 589 Uninet S.A. de C.V., MX 9808 9463 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8093 10763 2874 AMAZON-02, US 12479 7066 1705 149 UNI2-AS, ES 7545 5761 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4528 300 621 CABLEONE, US 20940 4040 3399 163 AKAMAI-ASN1, NL 7155 3966 279 45 VIASAT-SP-BACKBONE, US 8551 3887 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 9463 9415 CHINAMOBILE-CN China Mobile Communications Grou 12479 7066 6917 UNI2-AS, ES 16509 8093 5219 AMAZON-02, US 7545 5761 5071 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3966 3921 VIASAT-SP-BACKBONE, US 11492 4528 3907 CABLEONE, US 20940 4040 3877 AKAMAI-ASN1, NL 8551 3887 3850 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 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 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 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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 /13:576 /14:1198 /15:2075 /16:13432 /17:8185 /18:13698 /19:24832 /20:42902 /21:50987 /22:108838 /23:96941 /24:543784 /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 6124 7066 UNI2-AS, ES 8151 5136 11179 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3436 4528 CABLEONE, US 8551 3359 3887 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3314 3506 SHAW, CA 7155 3041 3966 VIASAT-SP-BACKBONE, US 22773 2697 3645 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2163 2505 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2027 3473 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1667 2:1225 3:168 4:5 5:4418 6:117 7:6 8:1516 9:1 11:172 12:1577 13:395 14:2317 15:296 16:111 17:367 18:398 20:249 21:4 22:188 23:6097 24:2490 25:6 27:2499 29:19 31:2509 32:101 34:8 35:104 36:1922 37:4617 38:4327 39:807 40:150 41:4025 42:952 43:2309 44:309 45:16413 46:4228 47:371 49:1735 50:1826 51:570 52:1588 54:389 55:808 56:8 57:91 58:1677 59:1079 60:973 61:2459 62:2629 63:1934 64:5650 65:2314 66:4905 67:3019 68:1364 69:4118 70:1264 71:664 72:2970 74:2590 75:1460 76:604 77:2419 78:1839 79:3166 80:2075 81:1734 82:1507 83:1225 84:1509 85:2996 86:749 87:1952 88:1235 89:3601 90:612 91:7654 92:2020 93:2561 94:3554 95:3955 96:1328 97:331 98:1165 99:748 100:77 101:1300 102:2676 103:31041 104:4585 105:466 106:896 107:2555 108:974 109:4384 110:2063 111:3201 112:2056 113:1492 114:1622 115:2016 116:1894 117:2558 118:2280 119:1964 120:1738 121:1047 122:2585 123:2134 124:1577 125:2417 128:1252 129:1059 130:998 131:2004 132:834 133:421 134:1897 135:301 136:864 137:932 138:2559 139:1514 140:1204 141:1470 142:1424 143:1504 144:1159 145:356 146:1901 147:1561 148:2292 149:1948 150:872 151:1143 152:1960 153:488 154:4230 155:1421 156:1679 157:1279 158:1045 159:2266 160:2588 161:1470 162:3535 163:1497 164:1582 165:1701 166:844 167:1733 168:3865 169:930 170:4619 171:884 172:3505 173:2913 174:1020 175:1159 176:3658 177:4640 178:3634 179:2181 180:2433 181:3408 182:3315 183:1934 184:2343 185:20137 186:4697 187:3995 188:4056 189:3584 190:9116 191:1484 192:10945 193:8815 194:7242 195:5127 196:3173 197:2385 198:5885 199:6085 200:7722 201:5867 202:10313 203:10174 204:4614 205:3526 206:3827 207:3395 208:4067 209:4840 210:4175 211:2386 212:4093 213:3530 214:1096 215:58 216:6593 217:2659 218:1265 219:407 220:1757 221:973 222:678 223:2134 End of report