IPv4 R&E Routing Table Report 23:05 GMT Sun 25 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: 982239 Prefixes after maximum aggregation (per Origin AS): 378941 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481734 Number of IPv4 prefixes with a valid ROA: 546096 Number of IPv4 prefixes with an invalid ROA: 731 Number of IPv4 prefixes with no ROA: 435412 Total ASes present in the Internet Routing Table: 76762 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65818 Origin ASes announcing only one prefix: 26907 Transit ASes present in the Internet Routing Table: 10944 Transit-only ASes present in the Internet Routing Table: 538 Paths with bogon ASNs present in the IPv4 Routing Table: 29 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: 1030 Number of instances of unregistered ASNs: 1047 Number of 32-bit ASNs allocated by the RIRs: 46520 Number of 32-bit ASNs visible in the Routing Table: 38249 Prefixes from 32-bit ASNs in the Routing Table: 203783 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: 452 Number of addresses announced to Internet: 3109853184 Equivalent to 185 /8s, 92 /16s and 152 /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: 320654 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258768 Total APNIC prefixes after maximum aggregation: 77175 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249832 Unique aggregates announced from the APNIC address blocks: 104256 APNIC Region origin ASes present in the Internet Routing Table: 14580 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4407 APNIC Region transit ASes present in the Internet Routing Table: 1960 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10120 Number of APNIC addresses announced to Internet: 748637184 Equivalent to 44 /8s, 159 /16s and 76 /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: 289601 Total ARIN prefixes after maximum aggregation: 130873 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290132 Unique aggregates announced from the ARIN address blocks: 139586 ARIN Region origin ASes present in the Internet Routing Table: 19211 ARIN Prefixes per ASN: 15.10 ARIN Region origin ASes announcing only one prefix: 7052 ARIN Region transit ASes present in the Internet Routing Table: 1929 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: 5208 Number of ARIN addresses announced to Internet: 1352567808 Equivalent to 80 /8s, 158 /16s and 140 /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: 273426 Total RIPE prefixes after maximum aggregation: 134074 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271838 Unique aggregates announced from the RIPE address blocks: 174902 RIPE Region origin ASes present in the Internet Routing Table: 28916 RIPE Prefixes per ASN: 9.40 RIPE Region origin ASes announcing only one prefix: 12078 RIPE Region transit ASes present in the Internet Routing Table: 3954 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12450 Number of RIPE addresses announced to Internet: 731462144 Equivalent to 43 /8s, 153 /16s and 58 /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: 123835 Total LACNIC prefixes after maximum aggregation: 29512 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120235 Unique aggregates announced from the LACNIC address blocks: 48894 LACNIC Region origin ASes present in the Internet Routing Table: 11249 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2529 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 34 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9199 Number of LACNIC addresses announced to Internet: 171850752 Equivalent to 10 /8s, 62 /16s and 60 /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: 35579 Total AfriNIC prefixes after maximum aggregation: 6677 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 49750 Unique aggregates announced from the AfriNIC address blocks: 13690 AfriNIC Region origin ASes present in the Internet Routing Table: 1903 AfriNIC Prefixes per ASN: 26.14 AfriNIC Region origin ASes announcing only one prefix: 685 AfriNIC Region transit ASes present in the Internet Routing Table: 379 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: 105125120 Equivalent to 6 /8s, 68 /16s and 21 /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 11030 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4391 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 534 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3905 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 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 13538 40827 5155 AMAZON-02, US 11492 4734 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3418 8746 882 COGENT-174, US 22773 3345 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3169 3852 418 GOOGLE-CLOUD-PLATFORM, US 16625 3021 1258 2227 AKAMAI-AS, US 36352 2830 231 859 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 7711 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3956 3395 123 AKAMAI-ASN1, NL 9009 3832 335 2052 M247, RO 12389 3072 2305 888 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2389 360 581 TELLCOM-AS, TR 212238 2155 152 1584 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 62240 1422 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 12169 3253 582 UNINET, MX 10620 3500 480 1017 Telmex Colombia S.A., CO 13999 2511 540 365 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 11664 1112 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 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 1653 389 17 LINKdotNET-AS, EG 29571 1608 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 1058 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 551 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 13538 40827 5155 AMAZON-02, US 8151 12169 3253 582 UNINET, MX 9808 11030 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7711 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4734 314 586 CABLEONE, US 18403 4391 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 534 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 3956 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 11587 UNINET, MX 9808 11030 10934 CHINAMOBILE-CN China Mobile Communications Grou 12479 7711 7563 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4391 4366 FPT-AS-AP FPT Telecom Company, VN 11492 4734 4148 CABLEONE, US 9498 4361 4060 BBIL-AP BHARTI Airtel Ltd., IN 7552 3905 3879 VIETEL-AS-AP Viettel Group, VN 20940 3956 3833 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 /14:1212 /15:2141 /16:13862 /17:8215 /18:13588 /19:24474 /20:43821 /21:51436 /22:111595 /23:101786 /24:609065 /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 6627 7711 UNI2-AS, ES 8151 6360 12169 UNINET, MX 11492 3531 4734 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2497 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2364 13538 AMAZON-02, US 30036 2231 2572 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 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) ---------------------------------------------- 1:2377 2:1503 3:785 4:9 5:4708 6:163 7:6 8:1579 9:1 11:172 12:1356 13:434 14:2521 15:354 16:285 17:376 18:920 20:528 21:4 22:188 23:7519 24:2747 25:2 27:2765 29:19 31:3269 32:36 33:1 34:83 35:207 36:2970 37:4620 38:9166 39:907 40:169 41:4237 42:1946 43:2626 44:384 45:18660 46:5047 47:301 49:1933 50:1871 51:590 52:1563 54:320 55:1097 56:11 57:258 58:2243 59:1300 60:1168 61:2827 62:2915 63:1799 64:5456 65:2179 66:4608 67:3055 68:1126 69:3839 70:1082 71:625 72:2835 74:2778 75:1508 76:615 77:2705 78:1888 79:1592 80:2203 81:2079 82:3118 83:1442 84:1865 85:3414 86:1068 87:2129 88:1287 89:4395 90:775 91:8361 92:2705 93:2896 94:4055 95:4309 96:1416 97:312 98:978 99:686 100:71 101:1409 102:3890 103:32859 104:5061 105:767 106:1035 107:2648 108:1207 109:4029 110:2255 111:3292 112:2097 113:1804 114:1975 115:2164 116:2065 117:2533 118:2865 119:1923 120:1949 121:1376 122:2761 123:2176 124:1624 125:2886 126:91 128:1585 129:954 130:1301 131:1960 132:778 133:451 134:1531 135:333 136:1340 137:1119 138:2894 139:1594 140:1587 141:1503 142:1901 143:1767 144:1125 145:502 146:2180 147:2108 148:2704 149:2889 150:1234 151:1934 152:2083 153:498 154:8021 155:1978 156:3202 157:1915 158:1323 159:2441 160:3840 161:1837 162:3748 163:2165 164:1730 165:2208 166:1476 167:1890 168:4310 169:785 170:5095 171:1008 172:4436 173:3295 174:913 175:1302 176:3702 177:4701 178:3644 179:2330 180:2763 181:4067 182:3443 183:2145 184:2050 185:21567 186:5161 187:4506 188:4261 189:4326 190:9541 191:1482 192:11239 193:9466 194:7777 195:5528 196:3259 197:3680 198:6066 199:8507 200:8069 201:6359 202:10301 203:10609 204:4517 205:3605 206:4450 207:3461 208:4237 209:5129 210:4545 211:2531 212:4540 213:3717 214:1025 215:48 216:6728 217:3129 218:1345 219:395 220:2091 221:1094 222:721 223:2394 End of report