IPv4 R&E Routing Table Report 23:05 GMT Sun 21 May, 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: 917160 Prefixes after maximum aggregation (per Origin AS): 348202 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 449347 Number of IPv4 prefixes with a valid ROA: 400280 Number of IPv4 prefixes with an invalid ROA: 1875 Number of IPv4 prefixes with no ROA: 515005 Total ASes present in the Internet Routing Table: 74274 Prefixes per ASN: 12.35 Origin-only ASes present in the Internet Routing Table: 63788 Origin ASes announcing only one prefix: 26240 Transit ASes present in the Internet Routing Table: 10486 Transit-only ASes present in the Internet Routing Table: 429 Paths with bogon ASNs present in the IPv4 Routing Table: 35 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 77 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1085 Number of instances of unregistered ASNs: 1086 Number of 32-bit ASNs allocated by the RIRs: 41915 Number of 32-bit ASNs visible in the Routing Table: 34552 Prefixes from 32-bit ASNs in the Routing Table: 171125 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 617 Number of addresses announced to Internet: 3057243904 Equivalent to 182 /8s, 57 /16s and 215 /24s Percentage of available address space announced: 82.6 Percentage of allocated address space announced: 82.6 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: 307375 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 239767 Total APNIC prefixes after maximum aggregation: 68585 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 234020 Unique aggregates announced from the APNIC address blocks: 98268 APNIC Region origin ASes present in the Internet Routing Table: 13339 APNIC Prefixes per ASN: 17.54 APNIC Region origin ASes announcing only one prefix: 3932 APNIC Region transit ASes present in the Internet Routing Table: 1787 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8708 Number of APNIC addresses announced to Internet: 772987136 Equivalent to 46 /8s, 18 /16s and 217 /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: 268400 Total ARIN prefixes after maximum aggregation: 122242 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 271229 Unique aggregates announced from the ARIN address blocks: 130328 ARIN Region origin ASes present in the Internet Routing Table: 19064 ARIN Prefixes per ASN: 14.23 ARIN Region origin ASes announcing only one prefix: 6989 ARIN Region transit ASes present in the Internet Routing Table: 1901 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: 4785 Number of ARIN addresses announced to Internet: 1281159936 Equivalent to 76 /8s, 92 /16s and 243 /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: 260249 Total RIPE prefixes after maximum aggregation: 122511 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 256028 Unique aggregates announced from the RIPE address blocks: 158446 RIPE Region origin ASes present in the Internet Routing Table: 28322 RIPE Prefixes per ASN: 9.04 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 3981 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11192 Number of RIPE addresses announced to Internet: 717986304 Equivalent to 42 /8s, 203 /16s and 154 /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: 118180 Total LACNIC prefixes after maximum aggregation: 28233 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 117407 Unique aggregates announced from the LACNIC address blocks: 49503 LACNIC Region origin ASes present in the Internet Routing Table: 10991 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2647 LACNIC Region transit ASes present in the Internet Routing Table: 2281 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8779 Number of LACNIC addresses announced to Internet: 176936704 Equivalent to 10 /8s, 139 /16s and 215 /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: 29479 Total AfriNIC prefixes after maximum aggregation: 5845 AfriNIC Deaggregation factor: 5.04 Prefixes being announced from the AfriNIC address blocks: 37859 Unique aggregates announced from the AfriNIC address blocks: 12289 AfriNIC Region origin ASes present in the Internet Routing Table: 1739 AfriNIC Prefixes per ASN: 21.77 AfriNIC Region origin ASes announcing only one prefix: 610 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 77 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1088 Number of AfriNIC addresses announced to Internet: 107767040 Equivalent to 6 /8s, 108 /16s and 101 /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 9480 8705 37 CHINAMOBILE-CN China Mobile Communicati 7545 5716 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4132 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3677 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3570 1043 66 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3390 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2960 491 240 BBIL-AP BHARTI Airtel Ltd., IN 24560 2399 837 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2300 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2184 442 197 TATACOMM-AS TATA Communications formerl 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 8292 10780 2942 AMAZON-02, US 11492 4538 301 603 CABLEONE, US 7155 4020 281 51 VIASAT-SP-BACKBONE, US 22773 3560 3051 268 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3526 1320 64 SHAW, CA 749 3100 54980 2352 DNIC-AS-00749, US 16625 3087 1552 2331 AKAMAI-AS, US 396982 2655 3592 372 GOOGLE-CLOUD-PLATFORM, US 7018 2504 24148 1574 ATT-INTERNET4, US 30036 2498 361 461 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 7309 1707 141 UNI2-AS, ES 39891 4765 282 59 ALJAWWALSTC-AS, SA 20940 4097 3398 162 AKAMAI-ASN1, NL 8551 3882 370 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2292 910 ROSTELECOM-AS, RU 9009 2706 249 1398 M247, RO 34984 2279 360 608 TELLCOM-AS, TR 6849 2017 307 17 UKRTELNET, UA 58224 1848 946 541 TCI, IR 61317 1615 108 1218 ASDETUK www.heficed.com, US 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 11300 3343 603 Uninet S.A. de C.V., MX 10620 3517 508 854 Telmex Colombia S.A., CO 13999 2349 361 621 Mega Cable, S.A. de C.V., MX 11830 2271 369 64 Instituto Costarricense de Electricidad 28573 1330 2323 240 Claro NXT Telecomunicacoes Ltda, BR 6503 1300 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1094 180 440 Techtel LMDS Comunicaciones Interactiva 26615 1035 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 1604 393 19 LINKdotNET-AS, EG 24835 1496 533 29 RAYA-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1028 67 47 ORANGE-COTE-IVOIRE, CI 36935 917 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 519 54 46 WANANCHI-, KE 37342 489 32 1 MOVITEL, MZ 24757 476 73 5 EthioNet-AS, ET 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 11300 3343 603 Uninet S.A. de C.V., MX 9808 9480 8705 37 CHINAMOBILE-CN China Mobile Communicati 16509 8292 10780 2942 AMAZON-02, US 12479 7309 1707 141 UNI2-AS, ES 7545 5716 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4765 282 59 ALJAWWALSTC-AS, SA 11492 4538 301 603 CABLEONE, US 18403 4132 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4097 3398 162 AKAMAI-ASN1, NL 7155 4020 281 51 VIASAT-SP-BACKBONE, US 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 9480 9443 CHINAMOBILE-CN China Mobile Communications Grou 12479 7309 7168 UNI2-AS, ES 16509 8292 5350 AMAZON-02, US 7545 5716 5027 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4765 4706 ALJAWWALSTC-AS, SA 18403 4132 4107 FPT-AS-AP FPT Telecom Company, VN 7155 4020 3969 VIASAT-SP-BACKBONE, US 11492 4538 3935 CABLEONE, US 20940 4097 3935 AKAMAI-ASN1, NL 8551 3882 3847 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 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 2.57.241.0/24 213035 AS-SERVERION Serverion B.V., 3507 UNALLOCATED 5.105.49.0/24 213035 AS-SERVERION Serverion B.V., 3507 UNALLOCATED 5.105.69.0/24 213035 AS-SERVERION Serverion B.V., 3507 UNALLOCATED 5.105.206.0/24 213035 AS-SERVERION Serverion B.V., 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.139.232.0/24 Origin: 211619 MAXKO, HR 23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 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 /9:14 /10:38 /11:104 /12:301 /13:578 /14:1198 /15:2083 /16:13444 /17:8154 /18:13719 /19:24787 /20:43002 /21:50984 /22:109105 /23:97705 /24:551919 /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 6379 7309 UNI2-AS, ES 8151 5271 11300 Uninet S.A. de C.V., MX 39891 3628 4765 ALJAWWALSTC-AS, SA 11492 3445 4538 CABLEONE, US 8551 3355 3882 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3335 3526 SHAW, CA 7155 3070 4020 VIASAT-SP-BACKBONE, US 22773 2634 3560 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2154 2498 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2070 3517 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) ---------------------------------------------- 1:2137 2:1306 3:175 4:5 5:4539 6:131 7:6 8:1512 9:1 11:172 12:1539 13:388 14:2301 15:303 16:186 17:372 18:421 20:258 21:4 22:188 23:6268 24:2586 25:6 27:2499 29:19 31:2496 32:77 34:21 35:109 36:1967 37:4684 38:4644 39:845 40:151 41:3956 42:1948 43:2339 44:311 45:16479 46:4335 47:358 49:1743 50:1839 51:579 52:1600 54:391 55:852 56:8 57:114 58:1817 59:1102 60:987 61:2522 62:2670 63:1927 64:5669 65:2335 66:5001 67:2916 68:1343 69:4099 70:1219 71:670 72:2991 74:2606 75:1558 76:607 77:2432 78:1804 79:3169 80:2125 81:1779 82:1494 83:1273 84:1511 85:2985 86:771 87:2021 88:1165 89:3706 90:619 91:7742 92:2066 93:2613 94:3621 95:4031 96:1304 97:336 98:1090 99:746 100:70 101:1306 102:2726 103:31350 104:4674 105:492 106:941 107:2581 108:1038 109:4410 110:2095 111:3114 112:2030 113:1713 114:1644 115:1995 116:1895 117:2559 118:2611 119:2005 120:1796 121:1063 122:2588 123:2127 124:1570 125:2459 128:1342 129:1012 130:1013 131:1976 132:846 133:422 134:1920 135:305 136:839 137:950 138:2572 139:1548 140:1244 141:1437 142:1446 143:1516 144:1149 145:346 146:1918 147:1582 148:2348 149:2205 150:874 151:1157 152:1931 153:486 154:4397 155:1443 156:1777 157:1317 158:1075 159:2235 160:2545 161:1539 162:3506 163:1519 164:1601 165:1759 166:1063 167:1729 168:3858 169:934 170:4591 171:897 172:3560 173:2946 174:1048 175:1170 176:3622 177:4637 178:3584 179:2226 180:2613 181:3485 182:3351 183:2099 184:2351 185:20272 186:4780 187:4016 188:4092 189:3630 190:9186 191:1449 192:10919 193:8865 194:7296 195:5190 196:3183 197:2379 198:5890 199:6076 200:7939 201:5904 202:10341 203:10277 204:4563 205:3680 206:4212 207:3390 208:4080 209:4858 210:4163 211:2420 212:4168 213:3616 214:1082 215:59 216:6648 217:2704 218:1271 219:408 220:1758 221:974 222:710 223:2148 End of report