IPv4 R&E Routing Table Report 23:05 GMT Sun 13 Jul, 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: 985205 Prefixes after maximum aggregation (per Origin AS): 382444 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486180 Number of IPv4 prefixes with a valid ROA: 554226 Number of IPv4 prefixes with an invalid ROA: 648 Number of IPv4 prefixes with no ROA: 430331 Total ASes present in the Internet Routing Table: 76880 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65876 Origin ASes announcing only one prefix: 26871 Transit ASes present in the Internet Routing Table: 11004 Transit-only ASes present in the Internet Routing Table: 547 Paths with bogon ASNs present in the IPv4 Routing Table: 31 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 71 Max AS path prepend of ASN ( 63293) 64 Prefixes from unregistered ASNs in the Routing Table: 1159 Number of instances of unregistered ASNs: 1196 Number of 32-bit ASNs allocated by the RIRs: 46830 Number of 32-bit ASNs visible in the Routing Table: 38504 Prefixes from 32-bit ASNs in the Routing Table: 205662 Number of bogon 32-bit ASNs visible in the Routing Table: 90 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 460 Number of addresses announced to Internet: 3106139136 Equivalent to 185 /8s, 35 /16s and 236 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 321619 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261666 Total APNIC prefixes after maximum aggregation: 77700 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 252572 Unique aggregates announced from the APNIC address blocks: 104878 APNIC Region origin ASes present in the Internet Routing Table: 14665 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4450 APNIC Region transit ASes present in the Internet Routing Table: 1974 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10217 Number of APNIC addresses announced to Internet: 749096448 Equivalent to 44 /8s, 166 /16s and 78 /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: 289337 Total ARIN prefixes after maximum aggregation: 131706 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 291236 Unique aggregates announced from the ARIN address blocks: 140869 ARIN Region origin ASes present in the Internet Routing Table: 19187 ARIN Prefixes per ASN: 15.18 ARIN Region origin ASes announcing only one prefix: 7033 ARIN Region transit ASes present in the Internet Routing Table: 1924 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 71 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5240 Number of ARIN addresses announced to Internet: 1349315584 Equivalent to 80 /8s, 108 /16s and 236 /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: 275791 Total RIPE prefixes after maximum aggregation: 135697 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274648 Unique aggregates announced from the RIPE address blocks: 177005 RIPE Region origin ASes present in the Internet Routing Table: 28927 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12041 RIPE Region transit ASes present in the Internet Routing Table: 3997 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12537 Number of RIPE addresses announced to Internet: 731441920 Equivalent to 43 /8s, 152 /16s and 235 /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: 124100 Total LACNIC prefixes after maximum aggregation: 29840 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120459 Unique aggregates announced from the LACNIC address blocks: 49066 LACNIC Region origin ASes present in the Internet Routing Table: 11272 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2528 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9229 Number of LACNIC addresses announced to Internet: 171177728 Equivalent to 10 /8s, 51 /16s and 247 /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: 33152 Total AfriNIC prefixes after maximum aggregation: 6734 AfriNIC Deaggregation factor: 4.92 Prefixes being announced from the AfriNIC address blocks: 45830 Unique aggregates announced from the AfriNIC address blocks: 13953 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 23.91 AfriNIC Region origin ASes announcing only one prefix: 688 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 104851456 Equivalent to 6 /8s, 63 /16s and 232 /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 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6147 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4481 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4442 535 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3913 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3289 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2653 812 178 CMNET-JIANGSU-AP China Mobile communicati 4755 2187 434 193 TATACOMM-AS TATA Communications formerly 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 13657 40959 5254 AMAZON-02, US 11492 4788 317 606 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3518 8769 846 COGENT-174, US 22773 3339 3034 168 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 396982 3195 3854 432 GOOGLE-CLOUD-PLATFORM, US 16625 2952 1244 2205 AKAMAI-AS, US 4155 2854 217 1722 USDA-1, 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 7637 1713 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3941 3395 123 AKAMAI-ASN1, NL 9009 3775 360 2105 M247, RO 12389 3118 2317 874 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 581 TELLCOM-AS, TR 212238 2347 168 1715 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1585 1852 14 TE-AS TE-AS, EG 203020 1474 164 648 HOSTROYALE, IN 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 12296 3255 573 UNINET, MX 10620 3513 481 1023 Telmex Colombia S.A., CO 13999 2530 538 352 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1047 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1022 373 162 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 1631 633 33 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1190 1474 353 ETISALAT-MISR, EG 36935 761 520 39 Vodafone-, EG 24863 645 389 22 LINKdotNET-AS, EG 37069 600 1112 11 MOBINIL, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 565 82 3 KENET-AS, KE 15399 534 56 53 WANANCHI-, 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 13657 40959 5254 AMAZON-02, US 8151 12296 3255 573 UNINET, MX 9808 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7637 1713 150 UNI2-AS, ES 7545 6147 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4788 317 606 CABLEONE, US 18403 4481 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4442 535 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 3941 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 12296 11723 UNINET, MX 9808 11755 11639 CHINAMOBILE-CN China Mobile Communications Grou 12479 7637 7487 UNI2-AS, ES 7545 6147 5525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4481 4455 FPT-AS-AP FPT Telecom Company, VN 11492 4788 4182 CABLEONE, US 9498 4442 4130 BBIL-AP BHARTI Airtel Ltd., IN 7552 3913 3886 VIETEL-AS-AP Viettel Group, VN 20940 3941 3818 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 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 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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: 6939 HURRICANE, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /10:41 /11:92 /12:298 /13:579 /14:1200 /15:2124 /16:13725 /17:8162 /18:13412 /19:24347 /20:43384 /21:51458 /22:110956 /23:102336 /24:613061 /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 12479 6570 7637 UNI2-AS, ES 8151 6519 12296 UNINET, MX 11492 3582 4788 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2489 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 13657 AMAZON-02, US 30036 2267 2608 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2200 3513 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) ---------------------------------------------- 1:2407 2:1496 3:851 4:10 5:4737 6:162 7:6 8:1556 9:1 11:172 12:1340 13:457 14:2555 15:366 16:285 17:377 18:898 20:556 21:4 22:188 23:7677 24:2671 25:2 27:2796 29:19 31:3326 32:35 33:1 34:83 35:256 36:3536 37:4581 38:9440 39:908 40:250 41:4125 42:1963 43:2713 44:368 45:18558 46:5086 47:335 49:1890 50:1943 51:592 52:1554 54:324 55:1108 56:11 57:270 58:2211 59:1271 60:1174 61:2826 62:2939 63:1789 64:5520 65:2169 66:4688 67:3090 68:1090 69:3860 70:1041 71:622 72:2849 74:2777 75:1503 76:608 77:2759 78:1897 79:1716 80:2192 81:2070 82:3154 83:1438 84:1873 85:3455 86:1082 87:2128 88:1310 89:4418 90:773 91:8410 92:2747 93:2938 94:4107 95:4404 96:1445 97:310 98:962 99:697 100:72 101:1437 102:3911 103:32839 104:5273 105:780 106:975 107:2638 108:1252 109:4152 110:2245 111:3272 112:2216 113:1849 114:1955 115:2211 116:2078 117:2555 118:2976 119:1929 120:2128 121:1322 122:2781 123:2212 124:1677 125:2904 126:91 128:1574 129:960 130:1281 131:2044 132:762 133:450 134:1572 135:349 136:1431 137:1129 138:2830 139:1585 140:1625 141:1535 142:1910 143:1947 144:1196 145:560 146:2169 147:2100 148:2698 149:2935 150:1243 151:2222 152:2072 153:525 154:7545 155:1821 156:3029 157:1938 158:1341 159:2491 160:3623 161:1849 162:3876 163:2232 164:1869 165:2076 166:1509 167:2019 168:3978 169:777 170:5125 171:1004 172:4414 173:3384 174:917 175:1324 176:3705 177:4719 178:3948 179:2310 180:2737 181:4099 182:3495 183:2264 184:2067 185:21540 186:5199 187:4614 188:4266 189:4312 190:9544 191:1479 192:11298 193:9463 194:7775 195:5568 196:3272 197:3156 198:6070 199:8573 200:8099 201:6388 202:10361 203:10609 204:4582 205:3607 206:4468 207:3497 208:4262 209:5102 210:4556 211:2572 212:4549 213:3787 214:1033 215:46 216:6756 217:3166 218:1360 219:397 220:2141 221:1184 222:711 223:2623 End of report