IPv4 R&E Routing Table Report 23:05 GMT Wed 22 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: 927824 Prefixes after maximum aggregation (per Origin AS): 354659 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 454485 Number of IPv4 prefixes with a valid ROA: 429039 Number of IPv4 prefixes with an invalid ROA: 1366 Number of IPv4 prefixes with no ROA: 497419 Total ASes present in the Internet Routing Table: 74857 Prefixes per ASN: 12.39 Origin-only ASes present in the Internet Routing Table: 64389 Origin ASes announcing only one prefix: 26473 Transit ASes present in the Internet Routing Table: 10468 Transit-only ASes present in the Internet Routing Table: 459 Paths with bogon ASNs present in the IPv4 Routing Table: 5 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: 978 Number of instances of unregistered ASNs: 980 Number of 32-bit ASNs allocated by the RIRs: 43089 Number of 32-bit ASNs visible in the Routing Table: 35346 Prefixes from 32-bit ASNs in the Routing Table: 177046 Number of bogon 32-bit ASNs visible in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 525 Number of addresses announced to Internet: 3048101888 Equivalent to 181 /8s, 174 /16s and 88 /24s Percentage of available address space announced: 82.3 Percentage of allocated address space announced: 82.3 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: 309384 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 243318 Total APNIC prefixes after maximum aggregation: 70968 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 236591 Unique aggregates announced from the APNIC address blocks: 99157 APNIC Region origin ASes present in the Internet Routing Table: 13671 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4105 APNIC Region transit ASes present in the Internet Routing Table: 1834 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9066 Number of APNIC addresses announced to Internet: 771104256 Equivalent to 45 /8s, 246 /16s and 30 /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: 123770 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 276936 Unique aggregates announced from the ARIN address blocks: 132210 ARIN Region origin ASes present in the Internet Routing Table: 19022 ARIN Prefixes per ASN: 14.56 ARIN Region origin ASes announcing only one prefix: 6964 ARIN Region transit ASes present in the Internet Routing Table: 1885 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: 4820 Number of ARIN addresses announced to Internet: 1275939072 Equivalent to 76 /8s, 13 /16s and 73 /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: 261779 Total RIPE prefixes after maximum aggregation: 124640 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 256345 Unique aggregates announced from the RIPE address blocks: 160519 RIPE Region origin ASes present in the Internet Routing Table: 28463 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12100 RIPE Region transit ASes present in the Internet Routing Table: 3898 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11428 Number of RIPE addresses announced to Internet: 714948096 Equivalent to 42 /8s, 157 /16s and 62 /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: 119373 Total LACNIC prefixes after maximum aggregation: 28569 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 118114 Unique aggregates announced from the LACNIC address blocks: 49353 LACNIC Region origin ASes present in the Internet Routing Table: 11040 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2338 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: 8880 Number of LACNIC addresses announced to Internet: 178296320 Equivalent to 10 /8s, 160 /16s and 150 /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: 30048 Total AfriNIC prefixes after maximum aggregation: 6022 AfriNIC Deaggregation factor: 4.99 Prefixes being announced from the AfriNIC address blocks: 39313 Unique aggregates announced from the AfriNIC address blocks: 12813 AfriNIC Region origin ASes present in the Internet Routing Table: 1809 AfriNIC Prefixes per ASN: 21.73 AfriNIC Region origin ASes announcing only one prefix: 636 AfriNIC Region transit ASes present in the Internet Routing Table: 339 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: 1152 Number of AfriNIC addresses announced to Internet: 107385856 Equivalent to 6 /8s, 102 /16s and 148 /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 9724 8729 41 CHINAMOBILE-CN China Mobile Communicati 7545 5685 785 697 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4346 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3639 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3598 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 3265 494 245 BBIL-AP BHARTI Airtel Ltd., IN 45899 3262 1872 99 VNPT-AS-VN VNPT Corp, VN 24560 2600 852 375 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2281 11268 602 KIXS-AS-KR Korea Telecom, KR 4755 2191 442 200 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 9348 11144 3289 AMAZON-02, US 11492 4557 302 676 CABLEONE, US 7155 4163 288 95 VIASAT-SP-BACKBONE, US 6327 3554 1320 68 SHAW, CA 22773 3507 3039 299 ASN-CXA-ALL-CCI-22773-RDC, US 749 3159 54932 2411 DNIC-AS-00749, US 16625 3109 1383 2291 AKAMAI-AS, US 367 3024 3868 1424 DNIC-ASBLK-00306-00371, US 396982 2722 3631 374 GOOGLE-CLOUD-PLATFORM, US 7018 2583 23619 1599 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 7466 1713 145 UNI2-AS, ES 39891 4570 271 54 ALJAWWALSTC-AS, SA 20940 4010 3397 141 AKAMAI-ASN1, NL 8551 3434 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 9009 3427 297 1597 M247, RO 12389 2907 2296 916 ROSTELECOM-AS, RU 34984 2319 361 588 TELLCOM-AS, TR 13188 1607 100 26 TRIOLAN, UA 58224 1601 895 607 TCI, IR 8452 1527 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 12080 3376 609 UNINET, MX 10620 3527 499 871 Telmex Colombia S.A., CO 13999 2459 337 644 Mega Cable, S.A. de C.V., MX 11830 2009 369 64 Instituto Costarricense de Electricidad 28573 1330 2321 242 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 781 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1247 341 504 Axtel, S.A.B. de C.V., MX 6147 1102 369 22 Telefonica del Peru S.A.A., PE 11664 1081 173 436 Techtel LMDS Comunicaciones Interactiva 26615 1040 2502 52 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 1602 389 16 LINKdotNET-AS, EG 24835 1548 545 28 RAYA-AS, EG 36992 1358 1518 280 ETISALAT-MISR, EG 36903 1248 553 98 MT-MPLS, MA 29571 1044 67 53 ORANGE-COTE-IVOIRE, CI 36935 935 521 43 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 504 53 41 WANANCHI-, KE 37342 492 32 1 MOVITEL, MZ 24757 481 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 12080 3376 609 UNINET, MX 9808 9724 8729 41 CHINAMOBILE-CN China Mobile Communicati 16509 9348 11144 3289 AMAZON-02, US 12479 7466 1713 145 UNI2-AS, ES 7545 5685 785 697 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 271 54 ALJAWWALSTC-AS, SA 11492 4557 302 676 CABLEONE, US 18403 4346 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4163 288 95 VIASAT-SP-BACKBONE, US 20940 4010 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 9724 9683 CHINAMOBILE-CN China Mobile Communications Grou 12479 7466 7321 UNI2-AS, ES 16509 9348 6059 AMAZON-02, US 7545 5685 4988 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 4516 ALJAWWALSTC-AS, SA 18403 4346 4321 FPT-AS-AP FPT Telecom Company, VN 7155 4163 4068 VIASAT-SP-BACKBONE, US 11492 4557 3881 CABLEONE, US 20940 4010 3869 AKAMAI-ASN1, NL 7552 3639 3619 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 8.10.69.0/24 174 COGENT-174, US 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 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, 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 23.166.120.0/24 Origin: 57870 UNLIMISLIM-NET, GB 23.166.120.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 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 /11:99 /12:298 /13:578 /14:1193 /15:2056 /16:13405 /17:8182 /18:13671 /19:24790 /20:43147 /21:51107 /22:109913 /23:99031 /24:560277 /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 6561 7466 UNI2-AS, ES 8151 6090 12080 UNINET, MX 11492 3470 4557 CABLEONE, US 6327 3363 3554 SHAW, CA 39891 3324 4570 ALJAWWALSTC-AS, SA 7155 3112 4163 VIASAT-SP-BACKBONE, US 8551 2911 3434 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2562 3507 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2137 2482 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2120 3527 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) ---------------------------------------------- 1:2232 2:1421 3:276 4:5 5:4385 6:162 7:6 8:1502 9:1 11:172 12:1493 13:375 14:2319 15:304 16:206 17:362 18:679 20:319 21:4 22:188 23:6486 24:2554 25:2 27:2581 29:19 31:2567 32:55 34:33 35:116 36:2026 37:4446 38:5656 39:878 40:149 41:3947 42:2077 43:2288 44:329 45:16662 46:4368 47:373 49:1853 50:1878 51:573 52:1592 54:393 55:877 56:5 57:125 58:1824 59:1113 60:1007 61:2581 62:2733 63:1898 64:5479 65:2356 66:4974 67:3061 68:1350 69:4118 70:1180 71:605 72:2921 74:2624 75:1560 76:624 77:2336 78:1829 79:3019 80:2110 81:1843 82:1513 83:1311 84:1600 85:2953 86:782 87:1951 88:1235 89:3936 90:630 91:7870 92:2144 93:2630 94:3563 95:4002 96:1297 97:316 98:1083 99:738 100:96 101:1410 102:2949 103:32349 104:4783 105:591 106:973 107:2768 108:1134 109:4198 110:2129 111:3125 112:2070 113:1680 114:1714 115:1995 116:1924 117:2560 118:2742 119:1950 120:1768 121:1198 122:2614 123:2183 124:1585 125:2635 128:1428 129:903 130:1049 131:1980 132:814 133:407 134:1714 135:298 136:920 137:1035 138:2698 139:1561 140:1327 141:1343 142:1528 143:1534 144:1004 145:339 146:1978 147:1629 148:2462 149:2296 150:1011 151:1249 152:1831 153:524 154:5285 155:1380 156:2116 157:1355 158:1056 159:2202 160:2611 161:1602 162:3563 163:1617 164:1634 165:1860 166:1066 167:1754 168:3823 169:791 170:4655 171:970 172:3760 173:2989 174:953 175:1199 176:3609 177:4595 178:3516 179:2159 180:2270 181:3594 182:3378 183:2020 184:2272 185:20524 186:4745 187:4256 188:4065 189:3927 190:9304 191:1475 192:10983 193:8954 194:7307 195:5200 196:3123 197:2483 198:5932 199:6527 200:8006 201:6239 202:10234 203:10011 204:4553 205:3687 206:4359 207:3399 208:4083 209:4878 210:4236 211:2456 212:4249 213:3377 214:1118 215:69 216:6726 217:2757 218:1294 219:412 220:1798 221:1003 222:687 223:2184 End of report