IPv4 R&E Routing Table Report 23:05 GMT Sun 01 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: 982680 Prefixes after maximum aggregation (per Origin AS): 379461 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482923 Number of IPv4 prefixes with a valid ROA: 547125 Number of IPv4 prefixes with an invalid ROA: 618 Number of IPv4 prefixes with no ROA: 434937 Total ASes present in the Internet Routing Table: 76771 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65803 Origin ASes announcing only one prefix: 26913 Transit ASes present in the Internet Routing Table: 10968 Transit-only ASes present in the Internet Routing Table: 543 Paths with bogon ASNs present in the IPv4 Routing Table: 28 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: 1070 Number of instances of unregistered ASNs: 1087 Number of 32-bit ASNs allocated by the RIRs: 46553 Number of 32-bit ASNs visible in the Routing Table: 38271 Prefixes from 32-bit ASNs in the Routing Table: 204016 Number of bogon 32-bit ASNs visible in the Routing Table: 44 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 444 Number of addresses announced to Internet: 3109922304 Equivalent to 185 /8s, 93 /16s and 166 /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: 320666 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258743 Total APNIC prefixes after maximum aggregation: 77205 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249704 Unique aggregates announced from the APNIC address blocks: 104280 APNIC Region origin ASes present in the Internet Routing Table: 14570 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4425 APNIC Region transit ASes present in the Internet Routing Table: 1962 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: 10119 Number of APNIC addresses announced to Internet: 748670720 Equivalent to 44 /8s, 159 /16s and 207 /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: 289783 Total ARIN prefixes after maximum aggregation: 130947 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290454 Unique aggregates announced from the ARIN address blocks: 139549 ARIN Region origin ASes present in the Internet Routing Table: 19202 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7043 ARIN Region transit ASes present in the Internet Routing Table: 1922 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: 5214 Number of ARIN addresses announced to Internet: 1352501248 Equivalent to 80 /8s, 157 /16s and 136 /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: 273984 Total RIPE prefixes after maximum aggregation: 134376 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272325 Unique aggregates announced from the RIPE address blocks: 175204 RIPE Region origin ASes present in the Internet Routing Table: 28926 RIPE Prefixes per ASN: 9.41 RIPE Region origin ASes announcing only one prefix: 12076 RIPE Region transit ASes present in the Internet Routing Table: 3965 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: 731528448 Equivalent to 43 /8s, 154 /16s and 61 /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: 123613 Total LACNIC prefixes after maximum aggregation: 29582 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 120013 Unique aggregates announced from the LACNIC address blocks: 48992 LACNIC Region origin ASes present in the Internet Routing Table: 11260 LACNIC Prefixes per ASN: 10.66 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2542 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 74 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9214 Number of LACNIC addresses announced to Internet: 171916032 Equivalent to 10 /8s, 63 /16s and 59 /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: 35487 Total AfriNIC prefixes after maximum aggregation: 6698 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 49740 Unique aggregates announced from the AfriNIC address blocks: 14498 AfriNIC Region origin ASes present in the Internet Routing Table: 1904 AfriNIC Prefixes per ASN: 26.12 AfriNIC Region origin ASes announcing only one prefix: 684 AfriNIC Region transit ASes present in the Internet Routing Table: 377 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: 1269 Number of AfriNIC addresses announced to Internet: 105106944 Equivalent to 6 /8s, 67 /16s and 206 /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 18403 4380 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4371 533 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3694 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3275 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2177 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 13578 40827 5188 AMAZON-02, US 11492 4735 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3447 8747 892 COGENT-174, US 22773 3346 3017 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3176 3853 421 GOOGLE-CLOUD-PLATFORM, US 16625 3015 1257 2228 AKAMAI-AS, US 36352 2816 230 852 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 7723 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3958 3395 123 AKAMAI-ASN1, NL 9009 3896 354 2071 M247, RO 12389 3074 2306 889 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 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 12171 3254 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1361 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 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 26615 1035 2503 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 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 1038 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 547 82 3 KENET-AS, KE 15399 545 57 60 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 13578 40827 5188 AMAZON-02, US 8151 12171 3254 582 UNINET, MX 9808 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7723 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 18403 4380 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4371 533 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 3958 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 12171 11589 UNINET, MX 9808 11065 10968 CHINAMOBILE-CN China Mobile Communications Grou 12479 7723 7575 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4380 4355 FPT-AS-AP FPT Telecom Company, VN 11492 4735 4149 CABLEONE, US 9498 4371 4070 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3958 3835 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 /17:8211 /18:13609 /19:24460 /20:43843 /21:51441 /22:111538 /23:101965 /24:609352 /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 6638 7723 UNI2-AS, ES 8151 6363 12171 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3426 3631 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2496 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2374 13578 AMAZON-02, US 30036 2237 2578 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) ---------------------------------------------- 1:2379 2:1501 3:801 4:9 5:4692 6:162 7:6 8:1574 9:1 11:172 12:1359 13:441 14:2520 15:360 16:285 17:376 18:920 20:542 21:4 22:188 23:7518 24:2749 25:2 27:2766 29:19 31:3277 32:36 33:1 34:83 35:214 36:3033 37:4619 38:9210 39:908 40:170 41:4228 42:1932 43:2631 44:377 45:18613 46:5069 47:318 49:1938 50:1881 51:591 52:1569 54:321 55:1096 56:11 57:260 58:2208 59:1302 60:1167 61:2827 62:2928 63:1799 64:5443 65:2178 66:4628 67:3050 68:1126 69:3828 70:1077 71:629 72:2837 74:2780 75:1507 76:615 77:2692 78:1887 79:1690 80:2202 81:2067 82:3098 83:1450 84:1855 85:3426 86:1069 87:2123 88:1287 89:4399 90:776 91:8369 92:2713 93:2911 94:4043 95:4328 96:1417 97:311 98:977 99:689 100:72 101:1413 102:3875 103:32658 104:5065 105:757 106:1035 107:2651 108:1245 109:4071 110:2253 111:3282 112:2112 113:1812 114:1975 115:2174 116:2067 117:2532 118:2873 119:1924 120:1962 121:1374 122:2762 123:2178 124:1624 125:2889 126:91 128:1580 129:956 130:1305 131:1974 132:775 133:449 134:1536 135:333 136:1351 137:1119 138:2875 139:1590 140:1591 141:1502 142:1903 143:1791 144:1153 145:509 146:2182 147:2107 148:2694 149:2886 150:1264 151:1946 152:2086 153:502 154:8007 155:1992 156:3332 157:1916 158:1328 159:2475 160:3857 161:1841 162:3768 163:2181 164:1726 165:2220 166:1488 167:1927 168:4307 169:790 170:5098 171:1009 172:4436 173:3305 174:916 175:1305 176:3697 177:4668 178:3646 179:2296 180:2747 181:4081 182:3445 183:2153 184:2055 185:21562 186:5148 187:4487 188:4241 189:4271 190:9543 191:1464 192:11260 193:9458 194:7799 195:5533 196:3257 197:3621 198:6066 199:8523 200:8054 201:6332 202:10251 203:10626 204:4538 205:3585 206:4441 207:3472 208:4215 209:5117 210:4549 211:2534 212:4563 213:3722 214:1026 215:48 216:6727 217:3118 218:1347 219:395 220:2085 221:1104 222:722 223:2411 End of report