IPv4 R&E Routing Table Report 23:05 GMT Thu 05 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: 981772 Prefixes after maximum aggregation (per Origin AS): 379284 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481930 Number of IPv4 prefixes with a valid ROA: 547183 Number of IPv4 prefixes with an invalid ROA: 628 Number of IPv4 prefixes with no ROA: 433961 Total ASes present in the Internet Routing Table: 76775 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65826 Origin ASes announcing only one prefix: 26912 Transit ASes present in the Internet Routing Table: 10949 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: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1067 Number of instances of unregistered ASNs: 1099 Number of 32-bit ASNs allocated by the RIRs: 46582 Number of 32-bit ASNs visible in the Routing Table: 38278 Prefixes from 32-bit ASNs in the Routing Table: 203170 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 440 Number of addresses announced to Internet: 3109436928 Equivalent to 185 /8s, 86 /16s and 62 /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: 320892 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258306 Total APNIC prefixes after maximum aggregation: 77022 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249818 Unique aggregates announced from the APNIC address blocks: 104283 APNIC Region origin ASes present in the Internet Routing Table: 14576 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4436 APNIC Region transit ASes present in the Internet Routing Table: 1961 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: 10121 Number of APNIC addresses announced to Internet: 748683520 Equivalent to 44 /8s, 160 /16s and 1 /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: 288852 Total ARIN prefixes after maximum aggregation: 130906 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290617 Unique aggregates announced from the ARIN address blocks: 139553 ARIN Region origin ASes present in the Internet Routing Table: 19204 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 1919 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: 5214 Number of ARIN addresses announced to Internet: 1352653824 Equivalent to 80 /8s, 159 /16s and 220 /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: 274188 Total RIPE prefixes after maximum aggregation: 134461 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272601 Unique aggregates announced from the RIPE address blocks: 175217 RIPE Region origin ASes present in the Internet Routing Table: 28925 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12073 RIPE Region transit ASes present in the Internet Routing Table: 3985 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12461 Number of RIPE addresses announced to Internet: 731156736 Equivalent to 43 /8s, 148 /16s and 145 /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: 123866 Total LACNIC prefixes after maximum aggregation: 29541 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120230 Unique aggregates announced from the LACNIC address blocks: 48913 LACNIC Region origin ASes present in the Internet Routing Table: 11250 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2520 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9203 Number of LACNIC addresses announced to Internet: 171906816 Equivalent to 10 /8s, 63 /16s and 23 /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: 35493 Total AfriNIC prefixes after maximum aggregation: 6699 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 48066 Unique aggregates announced from the AfriNIC address blocks: 13569 AfriNIC Region origin ASes present in the Internet Routing Table: 1913 AfriNIC Prefixes per ASN: 25.13 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1279 Number of AfriNIC addresses announced to Internet: 104833536 Equivalent to 6 /8s, 63 /16s and 162 /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 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4407 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4377 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 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 2179 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 13620 40824 5198 AMAZON-02, US 11492 4760 316 593 CABLEONE, US 7155 3860 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3474 8746 890 COGENT-174, US 22773 3350 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3181 3853 423 GOOGLE-CLOUD-PLATFORM, US 16625 3013 1256 2226 AKAMAI-AS, US 36352 2815 230 855 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 7685 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3945 3395 123 AKAMAI-ASN1, NL 9009 3910 355 2083 M247, RO 12389 3107 2306 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2238 162 1642 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1574 1852 14 TE-AS TE-AS, EG 62240 1413 94 737 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 12178 3255 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2550 540 363 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1371 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 1192 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1059 66 373 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1034 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 1634 389 17 LINKdotNET-AS, EG 29571 1614 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1248 553 105 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 553 82 3 KENET-AS, KE 15399 532 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 13620 40824 5198 AMAZON-02, US 8151 12178 3255 582 UNINET, MX 9808 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7685 1714 148 UNI2-AS, ES 7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4760 316 593 CABLEONE, US 18403 4407 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4377 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 3945 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 12178 11596 UNINET, MX 9808 11065 10968 CHINAMOBILE-CN China Mobile Communications Grou 12479 7685 7537 UNI2-AS, ES 7545 6179 5530 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4407 4382 FPT-AS-AP FPT Telecom Company, VN 11492 4760 4167 CABLEONE, US 9498 4377 4073 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3945 3822 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 23.139.228.0/24 Origin: 399587 UNASSIGNED 23.139.228.0/24 Transit: 20473 AS-VULTR, 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 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 /12:299 /13:580 /14:1211 /15:2138 /16:13861 /17:8210 /18:13614 /19:24462 /20:43868 /21:51450 /22:111560 /23:102024 /24:608332 /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 6604 7685 UNI2-AS, ES 8151 6378 12178 UNINET, MX 11492 3557 4760 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2819 3860 VIASAT-SP-BACKBONE, US 22773 2498 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2382 13620 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) ---------------------------------------------- 1:2378 2:1493 3:805 4:9 5:4704 6:162 7:6 8:1574 9:1 11:172 12:1357 13:433 14:2521 15:360 16:285 17:376 18:919 20:544 21:4 22:188 23:7541 24:2749 25:2 27:2766 29:19 31:3269 32:36 33:1 34:83 35:253 36:3070 37:4589 38:9221 39:910 40:172 41:4209 42:1936 43:2635 44:373 45:18553 46:5089 47:318 49:1937 50:1883 51:591 52:1570 54:324 55:1089 56:11 57:262 58:2204 59:1309 60:1171 61:2826 62:2932 63:1796 64:5447 65:2182 66:4604 67:3049 68:1121 69:3843 70:1075 71:627 72:2838 74:2785 75:1507 76:615 77:2695 78:1886 79:1707 80:2208 81:2048 82:3118 83:1449 84:1861 85:3437 86:1072 87:2134 88:1296 89:4401 90:770 91:8360 92:2710 93:2914 94:4042 95:4335 96:1418 97:311 98:979 99:695 100:71 101:1405 102:3842 103:32637 104:5090 105:756 106:1035 107:2656 108:1244 109:4074 110:2252 111:3263 112:2136 113:1813 114:1983 115:2101 116:2070 117:2525 118:2889 119:1923 120:1969 121:1373 122:2764 123:2176 124:1625 125:2889 126:90 128:1572 129:959 130:1294 131:1986 132:776 133:449 134:1540 135:334 136:1344 137:1120 138:2876 139:1593 140:1595 141:1496 142:1900 143:1805 144:1159 145:526 146:2178 147:2111 148:2722 149:2891 150:1266 151:1939 152:2084 153:513 154:7458 155:1729 156:3024 157:1911 158:1320 159:2488 160:3602 161:1847 162:3777 163:2187 164:1866 165:2221 166:1488 167:1935 168:4030 169:787 170:5107 171:1008 172:4430 173:3313 174:917 175:1305 176:3701 177:4684 178:3687 179:2287 180:2740 181:4082 182:3445 183:2157 184:2052 185:21565 186:5150 187:4505 188:4241 189:4269 190:9584 191:1484 192:11241 193:9461 194:7796 195:5532 196:3262 197:3663 198:6068 199:8530 200:8075 201:6344 202:10279 203:10632 204:4538 205:3605 206:4444 207:3472 208:4224 209:5123 210:4548 211:2534 212:4567 213:3724 214:1033 215:48 216:6747 217:3135 218:1354 219:384 220:2085 221:1123 222:722 223:2448 End of report