IPv4 R&E Routing Table Report 23:05 GMT Fri 16 May, 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: 980139 Prefixes after maximum aggregation (per Origin AS): 378168 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479411 Number of IPv4 prefixes with a valid ROA: 544305 Number of IPv4 prefixes with an invalid ROA: 381 Number of IPv4 prefixes with no ROA: 435453 Total ASes present in the Internet Routing Table: 76700 Prefixes per ASN: 12.78 Origin-only ASes present in the Internet Routing Table: 65744 Origin ASes announcing only one prefix: 26905 Transit ASes present in the Internet Routing Table: 10956 Transit-only ASes present in the Internet Routing Table: 546 Paths with bogon ASNs present in the IPv4 Routing Table: 26 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1023 Number of instances of unregistered ASNs: 1040 Number of 32-bit ASNs allocated by the RIRs: 46423 Number of 32-bit ASNs visible in the Routing Table: 38182 Prefixes from 32-bit ASNs in the Routing Table: 202875 Number of bogon 32-bit ASNs visible in the Routing Table: 42 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 456 Number of addresses announced to Internet: 3108136704 Equivalent to 185 /8s, 66 /16s and 103 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 320162 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257836 Total APNIC prefixes after maximum aggregation: 76856 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249087 Unique aggregates announced from the APNIC address blocks: 102990 APNIC Region origin ASes present in the Internet Routing Table: 14556 APNIC Prefixes per ASN: 17.11 APNIC Region origin ASes announcing only one prefix: 4410 APNIC Region transit ASes present in the Internet Routing Table: 1971 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10094 Number of APNIC addresses announced to Internet: 748268032 Equivalent to 44 /8s, 153 /16s and 170 /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: 288406 Total ARIN prefixes after maximum aggregation: 130460 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289660 Unique aggregates announced from the ARIN address blocks: 138783 ARIN Region origin ASes present in the Internet Routing Table: 19204 ARIN Prefixes per ASN: 15.08 ARIN Region origin ASes announcing only one prefix: 7042 ARIN Region transit ASes present in the Internet Routing Table: 1927 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5199 Number of ARIN addresses announced to Internet: 1351987456 Equivalent to 80 /8s, 149 /16s and 177 /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: 273154 Total RIPE prefixes after maximum aggregation: 133890 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271301 Unique aggregates announced from the RIPE address blocks: 174497 RIPE Region origin ASes present in the Internet Routing Table: 28893 RIPE Prefixes per ASN: 9.39 RIPE Region origin ASes announcing only one prefix: 12065 RIPE Region transit ASes present in the Internet Routing Table: 3969 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12430 Number of RIPE addresses announced to Internet: 730956288 Equivalent to 43 /8s, 145 /16s and 130 /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: 124231 Total LACNIC prefixes after maximum aggregation: 29544 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119863 Unique aggregates announced from the LACNIC address blocks: 48872 LACNIC Region origin ASes present in the Internet Routing Table: 11234 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2696 LACNIC Region transit ASes present in the Internet Routing Table: 2518 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9187 Number of LACNIC addresses announced to Internet: 171681536 Equivalent to 10 /8s, 59 /16s and 167 /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: 35489 Total AfriNIC prefixes after maximum aggregation: 6784 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 49772 Unique aggregates announced from the AfriNIC address blocks: 13882 AfriNIC Region origin ASes present in the Internet Routing Table: 1901 AfriNIC Prefixes per ASN: 26.18 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1272 Number of AfriNIC addresses announced to Internet: 105029120 Equivalent to 6 /8s, 66 /16s and 158 /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 10990 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6164 842 652 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4366 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4282 533 300 BBIL-AP BHARTI Airtel Ltd., IN 7552 3906 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3691 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3269 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2171 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 13415 40826 5018 AMAZON-02, US 11492 4727 313 592 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3455 8747 883 COGENT-174, US 22773 3346 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 396982 3164 3851 416 GOOGLE-CLOUD-PLATFORM, US 16625 3029 1264 2227 AKAMAI-AS, US 36352 2794 229 860 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 7697 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3959 3395 123 AKAMAI-ASN1, NL 9009 3771 325 1957 M247, RO 12389 3070 2305 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2140 150 1575 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1540 1852 14 TE-AS TE-AS, EG 62240 1421 94 736 CLOUVIDER Clouvider - Global ASN, GB 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 12106 3247 583 UNINET, MX 10620 3494 480 1026 Telmex Colombia S.A., CO 13999 2518 540 364 Mega Cable, S.A. de C.V., MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 11664 1109 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1059 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 262287 1048 83 234 Latitude.sh LTDA, 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 24835 1778 632 28 RAYA-AS, EG 24863 1652 389 16 LINKdotNET-AS, EG 29571 1598 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1040 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 15399 545 57 60 WANANCHI-, KE 36914 540 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 13415 40826 5018 AMAZON-02, US 8151 12106 3247 583 UNINET, MX 9808 10990 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7697 1714 148 UNI2-AS, ES 7545 6164 842 652 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4727 313 592 CABLEONE, US 18403 4366 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4282 533 300 BBIL-AP BHARTI Airtel Ltd., IN 20940 3959 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 12106 11523 UNINET, MX 9808 10990 10894 CHINAMOBILE-CN China Mobile Communications Grou 12479 7697 7549 UNI2-AS, ES 7545 6164 5512 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4366 4341 FPT-AS-AP FPT Telecom Company, VN 11492 4727 4135 CABLEONE, US 9498 4282 3982 BBIL-AP BHARTI Airtel Ltd., IN 7552 3906 3880 VIETEL-AS-AP Viettel Group, VN 20940 3959 3836 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /11:92 /12:299 /13:579 /14:1212 /15:2142 /16:13933 /17:8213 /18:13611 /19:24472 /20:43739 /21:51377 /22:111459 /23:101473 /24:607465 /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 6613 7697 UNI2-AS, ES 8151 6304 12106 UNINET, MX 11492 3533 4727 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2499 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2327 13415 AMAZON-02, US 30036 2228 2568 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2180 3494 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) ---------------------------------------------- 1:2343 2:1505 3:748 4:11 5:4679 6:163 7:6 8:1582 9:1 11:172 12:1363 13:420 14:2518 15:354 16:282 17:373 18:915 20:519 21:4 22:188 23:7508 24:2741 25:2 27:2749 29:19 31:3258 32:36 33:1 34:83 35:204 36:2907 37:4630 38:9154 39:910 40:169 41:4144 42:1963 43:2614 44:383 45:18597 46:5041 47:301 49:1939 50:1890 51:590 52:1553 54:317 55:1090 56:11 57:255 58:2240 59:1227 60:1167 61:2809 62:2917 63:1807 64:5462 65:2171 66:4619 67:3056 68:1119 69:3828 70:1066 71:625 72:2817 74:2744 75:1611 76:614 77:2706 78:1872 79:1756 80:2199 81:2068 82:3112 83:1426 84:1858 85:3417 86:1070 87:2153 88:1286 89:4367 90:775 91:8334 92:2691 93:2893 94:4048 95:4297 96:1418 97:312 98:980 99:686 100:72 101:1387 102:3920 103:32809 104:5025 105:764 106:1033 107:2647 108:1216 109:4076 110:2248 111:3324 112:2069 113:1793 114:1971 115:2162 116:2062 117:2587 118:2869 119:1954 120:1923 121:1367 122:2751 123:2160 124:1613 125:2834 126:91 128:1581 129:949 130:1285 131:1956 132:776 133:451 134:1534 135:332 136:1345 137:1114 138:2884 139:1591 140:1583 141:1501 142:1899 143:1741 144:1118 145:506 146:2156 147:2101 148:2700 149:2857 150:1233 151:1896 152:2081 153:497 154:8016 155:1966 156:3304 157:1890 158:1306 159:2445 160:3846 161:1878 162:3736 163:2136 164:1697 165:2192 166:1478 167:1901 168:4264 169:787 170:4918 171:1006 172:4447 173:3286 174:915 175:1306 176:3696 177:4673 178:3628 179:2285 180:2687 181:4057 182:3434 183:2134 184:2054 185:21519 186:5125 187:4433 188:4248 189:4263 190:9541 191:1471 192:11196 193:9475 194:7764 195:5514 196:3277 197:3652 198:6057 199:8488 200:8067 201:6339 202:10282 203:10497 204:4529 205:3582 206:4462 207:3463 208:4241 209:5158 210:4531 211:2540 212:4528 213:3713 214:1027 215:48 216:6701 217:3130 218:1340 219:397 220:2092 221:1083 222:716 223:2386 End of report