IPv4 R&E Routing Table Report 23:05 GMT Mon 28 Apr, 2025 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: 973559 Prefixes after maximum aggregation (per Origin AS): 375608 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478030 Number of IPv4 prefixes with a valid ROA: 536609 Number of IPv4 prefixes with an invalid ROA: 764 Number of IPv4 prefixes with no ROA: 436186 Total ASes present in the Internet Routing Table: 76529 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65636 Origin ASes announcing only one prefix: 26919 Transit ASes present in the Internet Routing Table: 10893 Transit-only ASes present in the Internet Routing Table: 532 Paths with bogon ASNs present in the IPv4 Routing Table: 20 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1063 Number of instances of unregistered ASNs: 1064 Number of 32-bit ASNs allocated by the RIRs: 46291 Number of 32-bit ASNs visible in the Routing Table: 38014 Prefixes from 32-bit ASNs in the Routing Table: 199742 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 469 Number of addresses announced to Internet: 3103791104 Equivalent to 185 /8s, 0 /16s and 24 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 317388 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256388 Total APNIC prefixes after maximum aggregation: 76776 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247583 Unique aggregates announced from the APNIC address blocks: 103061 APNIC Region origin ASes present in the Internet Routing Table: 14567 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4436 APNIC Region transit ASes present in the Internet Routing Table: 1971 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10101 Number of APNIC addresses announced to Internet: 748372224 Equivalent to 44 /8s, 155 /16s and 65 /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, 131072-155961 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: 287858 Total ARIN prefixes after maximum aggregation: 129331 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288900 Unique aggregates announced from the ARIN address blocks: 138491 ARIN Region origin ASes present in the Internet Routing Table: 19207 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7047 ARIN Region transit ASes present in the Internet Routing Table: 1913 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5191 Number of ARIN addresses announced to Internet: 1348642816 Equivalent to 80 /8s, 98 /16s and 168 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 269345 Total RIPE prefixes after maximum aggregation: 132796 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 267311 Unique aggregates announced from the RIPE address blocks: 172889 RIPE Region origin ASes present in the Internet Routing Table: 28734 RIPE Prefixes per ASN: 9.30 RIPE Region origin ASes announcing only one prefix: 12049 RIPE Region transit ASes present in the Internet Routing Table: 3957 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12284 Number of RIPE addresses announced to Internet: 729959424 Equivalent to 43 /8s, 130 /16s and 76 /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, 53/8, 57/8, 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: 123504 Total LACNIC prefixes after maximum aggregation: 29313 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120069 Unique aggregates announced from the LACNIC address blocks: 48773 LACNIC Region origin ASes present in the Internet Routing Table: 11216 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2693 LACNIC Region transit ASes present in the Internet Routing Table: 2475 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9164 Number of LACNIC addresses announced to Internet: 171728128 Equivalent to 10 /8s, 60 /16s and 93 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35401 Total AfriNIC prefixes after maximum aggregation: 6756 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49227 Unique aggregates announced from the AfriNIC address blocks: 14430 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.79 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 104863744 Equivalent to 6 /8s, 64 /16s and 24 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 10454 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4248 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3269 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2859 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2190 11523 649 KIXS-AS-KR Korea Telecom, KR 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 13227 39700 4082 AMAZON-02, US 11492 4701 312 586 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3709 8756 923 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3392 3036 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2996 1256 2213 AKAMAI-AS, US 396982 2966 3651 474 GOOGLE-CLOUD-PLATFORM, US 36352 2737 225 835 AS-COLOCROSSING, 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 6021 1713 158 UNI2-AS, ES 39891 4780 291 65 ALJAWWALSTC-AS, SA 20940 3950 3395 123 AKAMAI-ASN1, NL 9009 3730 323 1982 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2115 150 1553 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1597 1852 14 TE-AS TE-AS, EG 8551 1424 366 33 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 11980 3243 595 UNINET, MX 10620 3516 485 994 Telmex Colombia S.A., CO 13999 2508 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1196 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1191 371 21 Telefonica del Peru S.A.A., PE 22884 1054 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1040 374 163 Axtel, S.A.B. de C.V., MX 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 24835 1743 607 31 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1589 102 22 ORANGE-COTE-IVOIRE, CI 36992 1435 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 15399 531 56 58 WANANCHI-, KE 36914 530 82 3 KENET-AS, KE 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 16509 13227 39700 4082 AMAZON-02, US 8151 11980 3243 595 UNINET, MX 9808 10454 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 12479 6021 1713 158 UNI2-AS, ES 39891 4780 291 65 ALJAWWALSTC-AS, SA 11492 4701 312 586 CABLEONE, US 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4248 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3950 3395 123 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 8151 11980 11385 UNINET, MX 9808 10454 10361 CHINAMOBILE-CN China Mobile Communications Grou 12479 6021 5863 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4715 ALJAWWALSTC-AS, SA 18403 4248 4223 FPT-AS-AP FPT Telecom Company, VN 11492 4701 4115 CABLEONE, US 9498 4308 4031 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3950 3827 AKAMAI-ASN1, NL 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /9:16 /10:41 /11:93 /12:300 /13:580 /14:1211 /15:2135 /16:13870 /17:8219 /18:13614 /19:24443 /20:43540 /21:51313 /22:110810 /23:100796 /24:602562 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6185 11980 UNINET, MX 12479 5103 6021 UNI2-AS, ES 11492 3531 4701 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2532 3392 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2353 13227 AMAZON-02, US 30036 2227 2567 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2182 3516 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) ---------------------------------------------- 1:2342 2:1496 3:627 4:9 5:4592 6:163 7:6 8:1556 9:1 11:172 12:1373 13:350 14:2515 15:352 16:282 17:367 18:920 20:513 21:4 22:188 23:7466 24:2753 25:2 27:2731 29:19 31:3211 32:36 34:83 35:206 36:2487 37:4580 38:9090 39:908 40:170 41:4207 42:1898 43:2577 44:376 45:18389 46:4993 47:293 49:1932 50:1899 51:590 52:1550 54:298 55:1078 56:11 57:253 58:2196 59:1285 60:1171 61:2811 62:2923 63:1818 64:5455 65:2185 66:4596 67:3051 68:1114 69:3818 70:1061 71:620 72:2835 74:2768 75:1607 76:614 77:2730 78:1875 79:1740 80:2169 81:2037 82:3170 83:1418 84:1803 85:3326 86:1047 87:1923 88:1247 89:4255 90:669 91:8293 92:2625 93:2870 94:4052 95:4245 96:1407 97:312 98:995 99:668 100:72 101:1383 102:3892 103:32223 104:4827 105:755 106:1045 107:2622 108:1207 109:4058 110:2235 111:3340 112:2048 113:1789 114:1965 115:2166 116:2030 117:2737 118:2887 119:1942 120:1881 121:1369 122:2746 123:2163 124:1611 125:2858 126:91 128:1548 129:950 130:1279 131:1892 132:749 133:451 134:1530 135:331 136:1301 137:1114 138:2869 139:1610 140:1569 141:1495 142:1903 143:1659 144:1091 145:514 146:2143 147:2090 148:2673 149:2860 150:1247 151:1744 152:2083 153:496 154:8265 155:1636 156:3366 157:1876 158:1288 159:2431 160:3574 161:1902 162:3734 163:2076 164:1702 165:2198 166:1453 167:1867 168:4014 169:785 170:5057 171:998 172:4480 173:3252 174:906 175:1299 176:3641 177:4659 178:3681 179:2564 180:2589 181:4056 182:3391 183:2053 184:2080 185:21040 186:5078 187:4445 188:4123 189:4228 190:9511 191:1472 192:11172 193:9386 194:7728 195:5486 196:3362 197:3659 198:6064 199:8471 200:8035 201:6275 202:10336 203:10541 204:4517 205:3594 206:4574 207:3431 208:4205 209:5141 210:4523 211:2534 212:4476 213:3743 214:1021 215:48 216:6590 217:3105 218:1331 219:377 220:2087 221:1057 222:723 223:2349 End of report