IPv4 R&E Routing Table Report 23:05 GMT Mon 02 Jun, 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: 982683 Prefixes after maximum aggregation (per Origin AS): 379395 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482785 Number of IPv4 prefixes with a valid ROA: 547199 Number of IPv4 prefixes with an invalid ROA: 626 Number of IPv4 prefixes with no ROA: 434858 Total ASes present in the Internet Routing Table: 76797 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65749 Origin ASes announcing only one prefix: 26944 Transit ASes present in the Internet Routing Table: 11048 Transit-only ASes present in the Internet Routing Table: 544 Paths with bogon ASNs present in the IPv4 Routing Table: 25 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: 1025 Number of instances of unregistered ASNs: 1030 Number of 32-bit ASNs allocated by the RIRs: 46555 Number of 32-bit ASNs visible in the Routing Table: 38287 Prefixes from 32-bit ASNs in the Routing Table: 203974 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 444 Number of addresses announced to Internet: 3109910528 Equivalent to 185 /8s, 93 /16s and 120 /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: 320636 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258656 Total APNIC prefixes after maximum aggregation: 77209 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249605 Unique aggregates announced from the APNIC address blocks: 104231 APNIC Region origin ASes present in the Internet Routing Table: 14580 APNIC Prefixes per ASN: 17.12 APNIC Region origin ASes announcing only one prefix: 4440 APNIC Region transit ASes present in the Internet Routing Table: 1967 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: 10129 Number of APNIC addresses announced to Internet: 748654080 Equivalent to 44 /8s, 159 /16s and 142 /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: 289693 Total ARIN prefixes after maximum aggregation: 130933 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290404 Unique aggregates announced from the ARIN address blocks: 139526 ARIN Region origin ASes present in the Internet Routing Table: 19212 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7047 ARIN Region transit ASes present in the Internet Routing Table: 1932 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: 5217 Number of ARIN addresses announced to Internet: 1352611584 Equivalent to 80 /8s, 159 /16s and 55 /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: 273911 Total RIPE prefixes after maximum aggregation: 134349 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272256 Unique aggregates announced from the RIPE address blocks: 175161 RIPE Region origin ASes present in the Internet Routing Table: 28930 RIPE Prefixes per ASN: 9.41 RIPE Region origin ASes announcing only one prefix: 12081 RIPE Region transit ASes present in the Internet Routing Table: 4017 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12455 Number of RIPE addresses announced to Internet: 731409920 Equivalent to 43 /8s, 152 /16s and 110 /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: 123843 Total LACNIC prefixes after maximum aggregation: 29574 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120213 Unique aggregates announced from the LACNIC address blocks: 48987 LACNIC Region origin ASes present in the Internet Routing Table: 11258 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2547 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 74 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9207 Number of LACNIC addresses announced to Internet: 171920640 Equivalent to 10 /8s, 63 /16s and 77 /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: 35555 Total AfriNIC prefixes after maximum aggregation: 6692 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 49761 Unique aggregates announced from the AfriNIC address blocks: 14480 AfriNIC Region origin ASes present in the Internet Routing Table: 1913 AfriNIC Prefixes per ASN: 26.01 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1279 Number of AfriNIC addresses announced to Internet: 105116672 Equivalent to 6 /8s, 67 /16s and 244 /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 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4376 534 303 BBIL-AP BHARTI Airtel Ltd., IN 18403 4343 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3694 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3274 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2178 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13586 40827 5188 AMAZON-02, US 11492 4735 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3630 1320 81 SHAW, CA 174 3438 8746 891 COGENT-174, US 22773 3346 3017 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3177 3853 421 GOOGLE-CLOUD-PLATFORM, US 16625 2999 1248 2221 AKAMAI-AS, US 36352 2804 229 850 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 7715 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3944 3395 123 AKAMAI-ASN1, NL 9009 3911 355 2087 M247, RO 12389 3074 2306 889 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2386 359 581 TELLCOM-AS, TR 212238 2225 161 1638 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1574 1852 14 TE-AS TE-AS, EG 62240 1416 94 738 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 12169 3254 585 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2514 540 362 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1361 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 11664 1097 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1039 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 1780 644 27 RAYA-AS, EG 24863 1652 389 17 LINKdotNET-AS, EG 29571 1611 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 15399 545 57 60 WANANCHI-, KE 36914 532 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 13586 40827 5188 AMAZON-02, US 8151 12169 3254 585 UNINET, MX 9808 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7715 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 586 CABLEONE, US 9498 4376 534 303 BBIL-AP BHARTI Airtel Ltd., IN 18403 4343 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3944 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 12169 11584 UNINET, MX 9808 11065 10968 CHINAMOBILE-CN China Mobile Communications Grou 12479 7715 7567 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4343 4318 FPT-AS-AP FPT Telecom Company, VN 11492 4735 4149 CABLEONE, US 9498 4376 4073 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3944 3821 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 /13:580 /14:1211 /15:2141 /16:13865 /17:8213 /18:13610 /19:24456 /20:43845 /21:51444 /22:111590 /23:101983 /24:609281 /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 6631 7715 UNI2-AS, ES 8151 6363 12169 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3425 3630 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2496 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2371 13586 AMAZON-02, US 30036 2233 2574 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 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) ---------------------------------------------- 1:2349 2:1501 3:802 4:9 5:4688 6:162 7:6 8:1575 9:1 11:172 12:1357 13:437 14:2520 15:359 16:285 17:376 18:920 20:542 21:4 22:188 23:7519 24:2749 25:2 27:2766 29:19 31:3263 32:36 33:1 34:83 35:231 36:3033 37:4600 38:9231 39:908 40:170 41:4227 42:1937 43:2630 44:374 45:18627 46:5062 47:318 49:1938 50:1879 51:591 52:1570 54:322 55:1098 56:11 57:260 58:2207 59:1304 60:1167 61:2826 62:2930 63:1798 64:5432 65:2178 66:4615 67:3039 68:1126 69:3851 70:1077 71:628 72:2838 74:2779 75:1506 76:615 77:2697 78:1887 79:1697 80:2204 81:2064 82:3088 83:1449 84:1854 85:3420 86:1069 87:2129 88:1287 89:4389 90:773 91:8361 92:2711 93:2909 94:4045 95:4334 96:1417 97:312 98:977 99:689 100:72 101:1409 102:3877 103:32668 104:5062 105:757 106:1035 107:2651 108:1245 109:4073 110:2251 111:3273 112:2112 113:1798 114:1977 115:2104 116:2073 117:2529 118:2881 119:1924 120:1962 121:1374 122:2762 123:2176 124:1626 125:2890 126:91 128:1577 129:959 130:1301 131:1976 132:778 133:449 134:1536 135:334 136:1352 137:1121 138:2877 139:1595 140:1590 141:1507 142:1902 143:1794 144:1155 145:509 146:2184 147:2107 148:2720 149:2883 150:1264 151:1950 152:2083 153:502 154:7976 155:1981 156:3337 157:1916 158:1327 159:2475 160:3857 161:1840 162:3768 163:2181 164:1764 165:2213 166:1488 167:1927 168:4300 169:790 170:5110 171:1008 172:4423 173:3305 174:917 175:1305 176:3697 177:4676 178:3644 179:2288 180:2745 181:4083 182:3447 183:2152 184:2054 185:21539 186:5149 187:4486 188:4241 189:4276 190:9606 191:1472 192:11253 193:9459 194:7788 195:5531 196:3261 197:3621 198:6062 199:8516 200:8070 201:6334 202:10248 203:10630 204:4530 205:3594 206:4439 207:3463 208:4216 209:5112 210:4549 211:2534 212:4554 213:3720 214:1033 215:48 216:6730 217:3118 218:1346 219:395 220:2084 221:1104 222:722 223:2411 End of report