IPv4 R&E Routing Table Report 23:05 GMT Fri 06 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: 982007 Prefixes after maximum aggregation (per Origin AS): 379421 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482211 Number of IPv4 prefixes with a valid ROA: 547099 Number of IPv4 prefixes with an invalid ROA: 667 Number of IPv4 prefixes with no ROA: 434241 Total ASes present in the Internet Routing Table: 76798 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65850 Origin ASes announcing only one prefix: 26922 Transit ASes present in the Internet Routing Table: 10948 Transit-only ASes present in the Internet Routing Table: 541 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: 1065 Number of instances of unregistered ASNs: 1097 Number of 32-bit ASNs allocated by the RIRs: 46606 Number of 32-bit ASNs visible in the Routing Table: 38298 Prefixes from 32-bit ASNs in the Routing Table: 203318 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: 435 Number of addresses announced to Internet: 3109690880 Equivalent to 185 /8s, 90 /16s and 30 /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: 321016 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258372 Total APNIC prefixes after maximum aggregation: 77136 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249848 Unique aggregates announced from the APNIC address blocks: 104284 APNIC Region origin ASes present in the Internet Routing Table: 14583 APNIC Prefixes per ASN: 17.13 APNIC Region origin ASes announcing only one prefix: 4435 APNIC Region transit ASes present in the Internet Routing Table: 1956 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: 10126 Number of APNIC addresses announced to Internet: 748707584 Equivalent to 44 /8s, 160 /16s and 95 /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: 288928 Total ARIN prefixes after maximum aggregation: 130912 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290594 Unique aggregates announced from the ARIN address blocks: 139608 ARIN Region origin ASes present in the Internet Routing Table: 19211 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7049 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: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5218 Number of ARIN addresses announced to Internet: 1352664576 Equivalent to 80 /8s, 160 /16s and 6 /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: 274277 Total RIPE prefixes after maximum aggregation: 134482 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272802 Unique aggregates announced from the RIPE address blocks: 175353 RIPE Region origin ASes present in the Internet Routing Table: 28931 RIPE Prefixes per ASN: 9.43 RIPE Region origin ASes announcing only one prefix: 12073 RIPE Region transit ASes present in the Internet Routing Table: 3986 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: 12466 Number of RIPE addresses announced to Internet: 731266304 Equivalent to 43 /8s, 150 /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: 123862 Total LACNIC prefixes after maximum aggregation: 29533 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120248 Unique aggregates announced from the LACNIC address blocks: 48982 LACNIC Region origin ASes present in the Internet Routing Table: 11259 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2675 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: 9211 Number of LACNIC addresses announced to Internet: 171911680 Equivalent to 10 /8s, 63 /16s and 42 /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: 35503 Total AfriNIC prefixes after maximum aggregation: 6707 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48080 Unique aggregates announced from the AfriNIC address blocks: 13594 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.15 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 371 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: 1277 Number of AfriNIC addresses announced to Internet: 104940032 Equivalent to 6 /8s, 65 /16s and 66 /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 4433 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 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 3274 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2881 854 529 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 13621 40825 5201 AMAZON-02, US 11492 4760 316 593 CABLEONE, US 7155 3863 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 3182 3853 424 GOOGLE-CLOUD-PLATFORM, US 16625 2999 1250 2221 AKAMAI-AS, US 36352 2814 230 856 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 7684 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3928 3395 123 AKAMAI-ASN1, NL 9009 3908 355 2082 M247, RO 12389 3109 2306 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2241 163 1645 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 12179 3255 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2548 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 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 11664 1195 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1041 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 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 1247 553 104 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 552 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 13621 40825 5201 AMAZON-02, US 8151 12179 3255 582 UNINET, MX 9808 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7684 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 4433 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 3928 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 12179 11597 UNINET, MX 9808 11065 10968 CHINAMOBILE-CN China Mobile Communications Grou 12479 7684 7536 UNI2-AS, ES 7545 6179 5530 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4433 4408 FPT-AS-AP FPT Telecom Company, VN 11492 4760 4167 CABLEONE, US 9498 4379 4075 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3928 3805 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 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:299 /13:580 /14:1211 /15:2139 /16:13860 /17:8209 /18:13617 /19:24460 /20:43868 /21:51451 /22:111654 /23:102026 /24:608470 /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 6603 7684 UNI2-AS, ES 8151 6380 12179 UNINET, MX 11492 3557 4760 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2498 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2390 13621 AMAZON-02, US 30036 2243 2584 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) ---------------------------------------------- 1:2380 2:1485 3:803 4:9 5:4706 6:162 7:6 8:1573 9:1 11:172 12:1356 13:435 14:2521 15:361 16:285 17:376 18:918 20:544 21:4 22:188 23:7540 24:2749 25:2 27:2769 29:19 31:3273 32:36 33:1 34:83 35:254 36:3071 37:4587 38:9190 39:909 40:172 41:4199 42:1946 43:2635 44:374 45:18602 46:5091 47:318 49:1935 50:1880 51:591 52:1570 54:322 55:1094 56:11 57:261 58:2204 59:1310 60:1171 61:2827 62:2933 63:1796 64:5446 65:2181 66:4603 67:3046 68:1122 69:3846 70:1075 71:627 72:2838 74:2783 75:1507 76:616 77:2714 78:1888 79:1688 80:2208 81:2049 82:3117 83:1445 84:1861 85:3441 86:1077 87:2134 88:1294 89:4395 90:770 91:8371 92:2707 93:2914 94:4041 95:4338 96:1418 97:311 98:979 99:695 100:73 101:1404 102:3854 103:32639 104:5090 105:761 106:1034 107:2656 108:1246 109:4068 110:2252 111:3276 112:2129 113:1813 114:1983 115:2101 116:2075 117:2526 118:2884 119:1921 120:1971 121:1374 122:2766 123:2175 124:1629 125:2889 126:91 128:1570 129:960 130:1293 131:1980 132:772 133:449 134:1540 135:334 136:1349 137:1123 138:2878 139:1592 140:1595 141:1500 142:1900 143:1823 144:1144 145:526 146:2177 147:2113 148:2717 149:2894 150:1268 151:1940 152:2078 153:521 154:7464 155:1731 156:3024 157:1917 158:1325 159:2485 160:3606 161:1843 162:3801 163:2185 164:1847 165:2222 166:1489 167:1939 168:3991 169:789 170:5120 171:1010 172:4433 173:3314 174:917 175:1304 176:3704 177:4684 178:3702 179:2280 180:2744 181:4083 182:3445 183:2172 184:2056 185:21564 186:5133 187:4503 188:4244 189:4283 190:9583 191:1485 192:11269 193:9463 194:7803 195:5531 196:3262 197:3663 198:6064 199:8535 200:8079 201:6348 202:10257 203:10635 204:4538 205:3598 206:4453 207:3471 208:4224 209:5125 210:4547 211:2531 212:4566 213:3724 214:1030 215:48 216:6749 217:3138 218:1354 219:384 220:2090 221:1123 222:722 223:2454 End of report