IPv4 R&E Routing Table Report 23:05 GMT Fri 03 Nov, 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: 926106 Prefixes after maximum aggregation (per Origin AS): 354216 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 454165 Number of IPv4 prefixes with a valid ROA: 426810 Number of IPv4 prefixes with an invalid ROA: 1365 Number of IPv4 prefixes with no ROA: 497931 Total ASes present in the Internet Routing Table: 74781 Prefixes per ASN: 12.38 Origin-only ASes present in the Internet Routing Table: 64314 Origin ASes announcing only one prefix: 26468 Transit ASes present in the Internet Routing Table: 10467 Transit-only ASes present in the Internet Routing Table: 461 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 107 Max AS path prepend of ASN ( 37447) 103 Prefixes from unregistered ASNs in the Routing Table: 1031 Number of instances of unregistered ASNs: 1033 Number of 32-bit ASNs allocated by the RIRs: 43000 Number of 32-bit ASNs visible in the Routing Table: 35238 Prefixes from 32-bit ASNs in the Routing Table: 176300 Number of bogon 32-bit ASNs visible in the Routing Table: 11 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 512 Number of addresses announced to Internet: 3049293056 Equivalent to 181 /8s, 192 /16s and 133 /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: 99.6 Total number of prefixes smaller than registry allocations: 309287 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 242457 Total APNIC prefixes after maximum aggregation: 70714 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 235757 Unique aggregates announced from the APNIC address blocks: 98798 APNIC Region origin ASes present in the Internet Routing Table: 13629 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4086 APNIC Region transit ASes present in the Internet Routing Table: 1829 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9024 Number of APNIC addresses announced to Internet: 771633664 Equivalent to 45 /8s, 254 /16s and 50 /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: 272328 Total ARIN prefixes after maximum aggregation: 123964 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 276578 Unique aggregates announced from the ARIN address blocks: 132364 ARIN Region origin ASes present in the Internet Routing Table: 19038 ARIN Prefixes per ASN: 14.53 ARIN Region origin ASes announcing only one prefix: 6974 ARIN Region transit ASes present in the Internet Routing Table: 1880 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4817 Number of ARIN addresses announced to Internet: 1276424704 Equivalent to 76 /8s, 20 /16s and 178 /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: 261479 Total RIPE prefixes after maximum aggregation: 124435 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 256315 Unique aggregates announced from the RIPE address blocks: 160618 RIPE Region origin ASes present in the Internet Routing Table: 28461 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12105 RIPE Region transit ASes present in the Internet Routing Table: 3922 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11410 Number of RIPE addresses announced to Internet: 715016192 Equivalent to 42 /8s, 158 /16s and 72 /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: 118918 Total LACNIC prefixes after maximum aggregation: 28398 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 117833 Unique aggregates announced from the LACNIC address blocks: 49272 LACNIC Region origin ASes present in the Internet Routing Table: 11003 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2322 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: 8842 Number of LACNIC addresses announced to Internet: 178330880 Equivalent to 10 /8s, 161 /16s and 29 /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: 29893 Total AfriNIC prefixes after maximum aggregation: 5999 AfriNIC Deaggregation factor: 4.98 Prefixes being announced from the AfriNIC address blocks: 39111 Unique aggregates announced from the AfriNIC address blocks: 12687 AfriNIC Region origin ASes present in the Internet Routing Table: 1800 AfriNIC Prefixes per ASN: 21.73 AfriNIC Region origin ASes announcing only one prefix: 630 AfriNIC Region transit ASes present in the Internet Routing Table: 341 Average AfriNIC Region AS path length visible: 5.7 Max AfriNIC Region AS path length visible: 107 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1145 Number of AfriNIC addresses announced to Internet: 107464704 Equivalent to 6 /8s, 103 /16s and 200 /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 9524 8729 40 CHINAMOBILE-CN China Mobile Communicati 7545 5716 785 695 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4250 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3613 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3603 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3323 1872 98 VNPT-AS-VN VNPT Corp, VN 9498 3245 491 239 BBIL-AP BHARTI Airtel Ltd., IN 24560 2572 851 372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2283 11268 602 KIXS-AS-KR Korea Telecom, KR 4755 2191 442 201 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 9149 11016 3333 AMAZON-02, US 11492 4541 301 673 CABLEONE, US 7155 4161 288 96 VIASAT-SP-BACKBONE, US 6327 3546 1320 67 SHAW, CA 22773 3514 3039 299 ASN-CXA-ALL-CCI-22773-RDC, US 749 3160 54933 2412 DNIC-AS-00749, US 367 3064 3869 1441 DNIC-ASBLK-00306-00371, US 16625 3041 1385 2301 AKAMAI-AS, US 396982 2709 3598 400 GOOGLE-CLOUD-PLATFORM, US 7018 2513 23614 1595 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 7405 1713 145 UNI2-AS, ES 39891 4570 271 54 ALJAWWALSTC-AS, SA 20940 4017 3397 141 AKAMAI-ASN1, NL 8551 3444 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 9009 3423 297 1597 M247, RO 12389 2892 2295 912 ROSTELECOM-AS, RU 34984 2324 361 592 TELLCOM-AS, TR 58224 1664 913 569 TCI, IR 13188 1606 100 27 TRIOLAN, UA 8452 1497 1852 14 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 11946 3371 614 UNINET, MX 10620 3544 504 860 Telmex Colombia S.A., CO 13999 2423 331 635 Mega Cable, S.A. de C.V., MX 11830 2006 369 64 Instituto Costarricense de Electricidad 28573 1331 2322 236 Claro NXT Telecomunicacoes Ltda, BR 3816 1295 777 196 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1247 342 505 Axtel, S.A.B. de C.V., MX 6147 1105 369 22 Telefonica del Peru S.A.A., PE 11664 1058 168 430 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 1603 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 1045 67 53 ORANGE-COTE-IVOIRE, CI 36935 938 521 44 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 503 53 40 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 24757 480 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 11946 3371 614 UNINET, MX 9808 9524 8729 40 CHINAMOBILE-CN China Mobile Communicati 16509 9149 11016 3333 AMAZON-02, US 12479 7405 1713 145 UNI2-AS, ES 7545 5716 785 695 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 271 54 ALJAWWALSTC-AS, SA 11492 4541 301 673 CABLEONE, US 18403 4250 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4161 288 96 VIASAT-SP-BACKBONE, US 20940 4017 3397 141 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 9524 9484 CHINAMOBILE-CN China Mobile Communications Grou 12479 7405 7260 UNI2-AS, ES 16509 9149 5816 AMAZON-02, US 7545 5716 5021 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 4516 ALJAWWALSTC-AS, SA 18403 4250 4225 FPT-AS-AP FPT Telecom Company, VN 7155 4161 4065 VIASAT-SP-BACKBONE, US 20940 4017 3876 AKAMAI-ASN1, NL 11492 4541 3868 CABLEONE, US 7552 3613 3593 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 3356 LEVEL3, 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 23.164.232.0/24 Origin: 53763 LAKESIDE, US 23.164.232.0/24 Transit: 20473 AS-CHOOPA, 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 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 /11:100 /12:299 /13:578 /14:1193 /15:2046 /16:13392 /17:8205 /18:13628 /19:24747 /20:43157 /21:51103 /22:109749 /23:98765 /24:559067 /25:0 /26:2 /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 6495 7405 UNI2-AS, ES 8151 5971 11946 UNINET, MX 11492 3454 4541 CABLEONE, US 6327 3356 3546 SHAW, CA 39891 3324 4570 ALJAWWALSTC-AS, SA 7155 3109 4161 VIASAT-SP-BACKBONE, US 8551 2921 3444 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2569 3514 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2149 2494 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2118 3544 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) ---------------------------------------------- 1:2220 2:1431 3:271 4:5 5:4384 6:161 7:6 8:1500 9:1 11:172 12:1497 13:352 14:2312 15:304 16:202 17:367 18:666 20:316 21:4 22:188 23:6489 24:2535 25:2 27:2586 29:19 31:2552 32:68 34:29 35:115 36:2023 37:4473 38:5525 39:857 40:149 41:3958 42:2064 43:2270 44:325 45:16692 46:4349 47:372 49:1861 50:1871 51:577 52:1588 54:391 55:885 56:5 57:125 58:1814 59:1112 60:1011 61:2574 62:2662 63:1900 64:5510 65:2351 66:4967 67:3053 68:1340 69:4129 70:1183 71:624 72:2940 74:2629 75:1565 76:637 77:2331 78:1827 79:3003 80:2102 81:1859 82:1522 83:1301 84:1599 85:2996 86:771 87:1935 88:1226 89:3948 90:625 91:7854 92:2126 93:2627 94:3562 95:3996 96:1301 97:315 98:1083 99:735 100:91 101:1380 102:2915 103:32132 104:4779 105:575 106:979 107:2793 108:1132 109:4245 110:2133 111:3133 112:2059 113:1737 114:1698 115:1992 116:1912 117:2550 118:2703 119:1944 120:1749 121:1182 122:2610 123:2173 124:1577 125:2606 128:1407 129:907 130:1047 131:1980 132:807 133:408 134:1687 135:300 136:909 137:981 138:2695 139:1561 140:1324 141:1327 142:1540 143:1535 144:1000 145:342 146:1960 147:1623 148:2463 149:2365 150:875 151:1241 152:1834 153:533 154:5278 155:1394 156:2077 157:1356 158:1060 159:2188 160:2616 161:1596 162:3510 163:1599 164:1666 165:1844 166:1060 167:1746 168:3845 169:786 170:4645 171:957 172:3867 173:2994 174:976 175:1185 176:3603 177:4530 178:3534 179:2158 180:2286 181:3571 182:3357 183:1987 184:2270 185:20617 186:4753 187:4234 188:4051 189:3923 190:9310 191:1454 192:10949 193:8953 194:7303 195:5214 196:3122 197:2490 198:5935 199:6426 200:7975 201:6189 202:10215 203:10017 204:4535 205:3680 206:4323 207:3410 208:4098 209:4872 210:4218 211:2448 212:4259 213:3398 214:1115 215:71 216:6694 217:2765 218:1276 219:409 220:1803 221:996 222:680 223:2157 End of report