IPv4 R&E Routing Table Report 23:05 GMT Wed 18 Oct, 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: 925765 Prefixes after maximum aggregation (per Origin AS): 352903 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 453694 Number of IPv4 prefixes with a valid ROA: 426449 Number of IPv4 prefixes with an invalid ROA: 1678 Number of IPv4 prefixes with no ROA: 497638 Total ASes present in the Internet Routing Table: 74772 Prefixes per ASN: 12.38 Origin-only ASes present in the Internet Routing Table: 64188 Origin ASes announcing only one prefix: 26457 Transit ASes present in the Internet Routing Table: 10584 Transit-only ASes present in the Internet Routing Table: 462 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: 106 Max AS path prepend of ASN ( 37447) 103 Prefixes from unregistered ASNs in the Routing Table: 1082 Number of instances of unregistered ASNs: 1084 Number of 32-bit ASNs allocated by the RIRs: 42845 Number of 32-bit ASNs visible in the Routing Table: 35207 Prefixes from 32-bit ASNs in the Routing Table: 175667 Number of bogon 32-bit ASNs visible in the Routing Table: 17 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 531 Number of addresses announced to Internet: 3051759872 Equivalent to 181 /8s, 230 /16s and 41 /24s Percentage of available address space announced: 82.4 Percentage of allocated address space announced: 82.4 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: 309342 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 241750 Total APNIC prefixes after maximum aggregation: 70250 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 235305 Unique aggregates announced from the APNIC address blocks: 99101 APNIC Region origin ASes present in the Internet Routing Table: 13620 APNIC Prefixes per ASN: 17.28 APNIC Region origin ASes announcing only one prefix: 4085 APNIC Region transit ASes present in the Internet Routing Table: 1831 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9013 Number of APNIC addresses announced to Internet: 772213504 Equivalent to 46 /8s, 7 /16s and 11 /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, 131072-153913 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: 272313 Total ARIN prefixes after maximum aggregation: 123583 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 276130 Unique aggregates announced from the ARIN address blocks: 132037 ARIN Region origin ASes present in the Internet Routing Table: 19025 ARIN Prefixes per ASN: 14.51 ARIN Region origin ASes announcing only one prefix: 6969 ARIN Region transit ASes present in the Internet Routing Table: 1896 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4815 Number of ARIN addresses announced to Internet: 1276697600 Equivalent to 76 /8s, 24 /16s and 220 /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: 261883 Total RIPE prefixes after maximum aggregation: 123953 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 256890 Unique aggregates announced from the RIPE address blocks: 160199 RIPE Region origin ASes present in the Internet Routing Table: 28416 RIPE Prefixes per ASN: 9.04 RIPE Region origin ASes announcing only one prefix: 12084 RIPE Region transit ASes present in the Internet Routing Table: 3956 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 102 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11362 Number of RIPE addresses announced to Internet: 716433152 Equivalent to 42 /8s, 179 /16s and 231 /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 196608-216475 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: 118518 Total LACNIC prefixes after maximum aggregation: 28411 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 117469 Unique aggregates announced from the LACNIC address blocks: 49224 LACNIC Region origin ASes present in the Internet Routing Table: 11043 LACNIC Prefixes per ASN: 10.64 LACNIC Region origin ASes announcing only one prefix: 2694 LACNIC Region transit ASes present in the Internet Routing Table: 2357 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8872 Number of LACNIC addresses announced to Internet: 178384640 Equivalent to 10 /8s, 161 /16s and 239 /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: 30219 Total AfriNIC prefixes after maximum aggregation: 5969 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 39440 Unique aggregates announced from the AfriNIC address blocks: 12688 AfriNIC Region origin ASes present in the Internet Routing Table: 1798 AfriNIC Prefixes per ASN: 21.94 AfriNIC Region origin ASes announcing only one prefix: 625 AfriNIC Region transit ASes present in the Internet Routing Table: 340 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 106 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1145 Number of AfriNIC addresses announced to Internet: 107603456 Equivalent to 6 /8s, 105 /16s and 230 /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 9487 8729 40 CHINAMOBILE-CN China Mobile Communicati 7545 5708 785 696 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4204 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3601 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3595 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3324 1840 96 VNPT-AS-VN VNPT Corp, VN 9498 3208 492 239 BBIL-AP BHARTI Airtel Ltd., IN 24560 2553 849 378 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11269 604 KIXS-AS-KR Korea Telecom, KR 4755 2191 442 203 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 9146 11002 3279 AMAZON-02, US 11492 4539 301 672 CABLEONE, US 7155 4159 288 96 VIASAT-SP-BACKBONE, US 6327 3546 1319 66 SHAW, CA 22773 3520 3056 297 ASN-CXA-ALL-CCI-22773-RDC, US 749 3161 54958 2413 DNIC-AS-00749, US 367 3069 3850 1431 DNIC-ASBLK-00306-00371, US 16625 3029 1397 2304 AKAMAI-AS, US 396982 2704 3598 397 GOOGLE-CLOUD-PLATFORM, US 7018 2518 23611 1580 ATT-INTERNET4, 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 7384 1713 145 UNI2-AS, ES 39891 4897 290 61 ALJAWWALSTC-AS, SA 20940 4080 3398 151 AKAMAI-ASN1, NL 8551 3451 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 9009 3103 277 1517 M247, RO 12389 2906 2297 916 ROSTELECOM-AS, RU 34984 2332 362 592 TELLCOM-AS, TR 58224 1701 920 523 TCI, IR 13188 1606 100 27 TRIOLAN, UA 8452 1534 1852 15 TE-AS TE-AS, EG 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 11717 3361 621 UNINET, MX 10620 3525 502 876 Telmex Colombia S.A., CO 13999 2418 332 623 Mega Cable, S.A. de C.V., MX 11830 2006 369 64 Instituto Costarricense de Electricidad 28573 1334 2324 232 Claro NXT Telecomunicacoes Ltda, BR 3816 1298 770 191 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1284 343 511 Axtel, S.A.B. de C.V., MX 6147 1110 369 22 Telefonica del Peru S.A.A., PE 11664 1051 168 426 Techtel LMDS Comunicaciones Interactiva 26615 1039 2501 51 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 1606 393 19 LINKdotNET-AS, EG 24835 1549 549 28 RAYA-AS, EG 36992 1358 1518 280 ETISALAT-MISR, EG 36903 1248 553 98 MT-MPLS, MA 29571 1044 67 45 ORANGE-COTE-IVOIRE, CI 36935 938 521 44 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 537 55 51 WANANCHI-, KE 24757 477 73 5 EthioNet-AS, ET 37342 461 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 11717 3361 621 UNINET, MX 9808 9487 8729 40 CHINAMOBILE-CN China Mobile Communicati 16509 9146 11002 3279 AMAZON-02, US 12479 7384 1713 145 UNI2-AS, ES 7545 5708 785 696 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 290 61 ALJAWWALSTC-AS, SA 11492 4539 301 672 CABLEONE, US 18403 4204 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4159 288 96 VIASAT-SP-BACKBONE, US 20940 4080 3398 151 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 9808 9487 9447 CHINAMOBILE-CN China Mobile Communications Grou 12479 7384 7239 UNI2-AS, ES 16509 9146 5867 AMAZON-02, US 7545 5708 5012 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 4836 ALJAWWALSTC-AS, SA 18403 4204 4179 FPT-AS-AP FPT Telecom Company, VN 7155 4159 4063 VIASAT-SP-BACKBONE, US 20940 4080 3929 AKAMAI-ASN1, NL 11492 4539 3867 CABLEONE, US 7552 3601 3581 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 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 40493 UNALLOCATED 8.17.26.0/24 17054 EXPEDIENT, US 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.176.160.0/24 Origin: 397327 RESERVED, ZZ 23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 Transit: 174 COGENT-174, US 36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road, 36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin 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 /10:37 /11:101 /12:299 /13:578 /14:1193 /15:2091 /16:13442 /17:8233 /18:13703 /19:24805 /20:43259 /21:51094 /22:109753 /23:98814 /24:558324 /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 6471 7384 UNI2-AS, ES 8151 5837 11717 UNINET, MX 39891 3632 4897 ALJAWWALSTC-AS, SA 11492 3452 4539 CABLEONE, US 6327 3356 3546 SHAW, CA 7155 3107 4159 VIASAT-SP-BACKBONE, US 8551 2928 3451 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2579 3520 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2154 2498 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2103 3525 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) ---------------------------------------------- 1:2206 2:1432 3:269 4:5 5:4383 6:142 7:6 8:1498 9:1 11:172 12:1499 13:362 14:2309 15:305 16:194 17:366 18:663 20:308 21:4 22:188 23:6455 24:2522 25:2 27:2578 29:19 31:2547 32:73 34:27 35:114 36:2003 37:4485 38:5443 39:865 40:143 41:4026 42:2040 43:2275 44:321 45:16636 46:4314 47:371 49:1832 50:1881 51:579 52:1587 54:393 55:950 56:5 57:127 58:1789 59:1115 60:1004 61:2544 62:2676 63:1909 64:5646 65:2353 66:4960 67:3051 68:1343 69:4121 70:1186 71:639 72:2941 74:2619 75:1565 76:630 77:2302 78:1831 79:3006 80:2115 81:1827 82:1514 83:1306 84:1553 85:3043 86:764 87:2006 88:1208 89:3926 90:621 91:7851 92:2065 93:2637 94:3560 95:4031 96:1301 97:316 98:1082 99:736 100:92 101:1295 102:2930 103:32192 104:4761 105:577 106:914 107:2712 108:1129 109:4245 110:2136 111:3148 112:2054 113:1751 114:1693 115:1992 116:1891 117:2524 118:2701 119:1957 120:1782 121:1131 122:2601 123:2173 124:1577 125:2572 128:1406 129:912 130:1037 131:1958 132:858 133:408 134:1778 135:303 136:909 137:983 138:2665 139:1581 140:1299 141:1332 142:1509 143:1522 144:1001 145:350 146:1962 147:1609 148:2450 149:2333 150:879 151:1237 152:1951 153:523 154:5153 155:1399 156:2004 157:1345 158:1057 159:2194 160:2633 161:1601 162:3512 163:1619 164:1709 165:1861 166:1063 167:1732 168:3827 169:792 170:4614 171:951 172:3795 173:2990 174:978 175:1184 176:3605 177:4494 178:3562 179:2142 180:2472 181:3513 182:3381 183:1990 184:2274 185:20616 186:4718 187:4176 188:4093 189:3867 190:9304 191:1373 192:10946 193:8957 194:7304 195:5216 196:3203 197:2500 198:5919 199:6295 200:7953 201:6168 202:10181 203:9969 204:4537 205:3693 206:4326 207:3410 208:4104 209:4902 210:4211 211:2446 212:4277 213:3384 214:1110 215:71 216:6698 217:2769 218:1270 219:407 220:1802 221:984 222:664 223:2153 End of report