IPv4 R&E Routing Table Report 23:05 GMT Tue 10 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: 982274 Prefixes after maximum aggregation (per Origin AS): 379764 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482221 Number of IPv4 prefixes with a valid ROA: 547650 Number of IPv4 prefixes with an invalid ROA: 881 Number of IPv4 prefixes with no ROA: 433743 Total ASes present in the Internet Routing Table: 76800 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65827 Origin ASes announcing only one prefix: 26875 Transit ASes present in the Internet Routing Table: 10973 Transit-only ASes present in the Internet Routing Table: 554 Paths with bogon ASNs present in the IPv4 Routing Table: 29 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: 1036 Number of instances of unregistered ASNs: 1077 Number of 32-bit ASNs allocated by the RIRs: 46631 Number of 32-bit ASNs visible in the Routing Table: 38309 Prefixes from 32-bit ASNs in the Routing Table: 203627 Number of bogon 32-bit ASNs visible in the Routing Table: 102 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 434 Number of addresses announced to Internet: 3109936896 Equivalent to 185 /8s, 93 /16s and 223 /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: 321277 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258320 Total APNIC prefixes after maximum aggregation: 77126 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249759 Unique aggregates announced from the APNIC address blocks: 104319 APNIC Region origin ASes present in the Internet Routing Table: 14573 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4420 APNIC Region transit ASes present in the Internet Routing Table: 1959 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10122 Number of APNIC addresses announced to Internet: 748690432 Equivalent to 44 /8s, 160 /16s and 28 /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: 288734 Total ARIN prefixes after maximum aggregation: 131053 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290377 Unique aggregates announced from the ARIN address blocks: 139457 ARIN Region origin ASes present in the Internet Routing Table: 19203 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 1928 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: 1352970752 Equivalent to 80 /8s, 164 /16s and 178 /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: 274577 Total RIPE prefixes after maximum aggregation: 134679 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273166 Unique aggregates announced from the RIPE address blocks: 175483 RIPE Region origin ASes present in the Internet Routing Table: 28945 RIPE Prefixes per ASN: 9.44 RIPE Region origin ASes announcing only one prefix: 12072 RIPE Region transit ASes present in the Internet Routing Table: 4008 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: 12489 Number of RIPE addresses announced to Internet: 731315200 Equivalent to 43 /8s, 150 /16s and 252 /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: 124020 Total LACNIC prefixes after maximum aggregation: 29552 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120355 Unique aggregates announced from the LACNIC address blocks: 49021 LACNIC Region origin ASes present in the Internet Routing Table: 11252 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2509 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: 9204 Number of LACNIC addresses announced to Internet: 171818752 Equivalent to 10 /8s, 61 /16s and 191 /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: 35587 Total AfriNIC prefixes after maximum aggregation: 6721 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48183 Unique aggregates announced from the AfriNIC address blocks: 13552 AfriNIC Region origin ASes present in the Internet Routing Table: 1914 AfriNIC Prefixes per ASN: 25.17 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: 1280 Number of AfriNIC addresses announced to Internet: 104941568 Equivalent to 6 /8s, 65 /16s and 72 /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 11077 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6178 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4471 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 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 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2180 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 13663 40939 5239 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3501 8746 887 COGENT-174, US 22773 3346 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3185 3854 426 GOOGLE-CLOUD-PLATFORM, US 16625 3005 1252 2223 AKAMAI-AS, US 36352 2812 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 7694 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3942 3395 123 AKAMAI-ASN1, NL 9009 3879 353 2080 M247, RO 12389 3105 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2398 360 580 TELLCOM-AS, TR 212238 2259 164 1648 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1572 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 12176 3233 586 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2550 540 363 Mega Cable, S.A. de C.V., MX 11830 1990 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 1196 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 1820 644 27 RAYA-AS, EG 24863 1633 389 16 LINKdotNET-AS, EG 29571 1615 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 981 185 286 INTERNET-SOLUTIONS, ZA 36914 563 82 3 KENET-AS, KE 15399 543 57 57 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 13663 40939 5239 AMAZON-02, US 8151 12176 3233 586 UNINET, MX 9808 11077 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7694 1714 148 UNI2-AS, ES 7545 6178 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4471 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 3942 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 12176 11590 UNINET, MX 9808 11077 10977 CHINAMOBILE-CN China Mobile Communications Grou 12479 7694 7546 UNI2-AS, ES 7545 6178 5529 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4471 4445 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4379 4075 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 3893 VIETEL-AS-AP Viettel Group, VN 20940 3942 3819 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 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 395195 UNALLOCATED 8.38.115.0/24 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 /13:581 /14:1210 /15:2140 /16:13860 /17:8210 /18:13609 /19:24438 /20:43883 /21:51475 /22:111706 /23:102088 /24:608612 /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 6611 7694 UNI2-AS, ES 8151 6387 12176 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2494 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2365 13663 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) ---------------------------------------------- 1:2381 2:1482 3:813 4:9 5:4717 6:162 7:6 8:1573 9:1 11:172 12:1350 13:451 14:2522 15:359 16:285 17:376 18:921 20:545 21:4 22:188 23:7550 24:2744 25:2 27:2767 29:19 31:3283 32:36 33:1 34:83 35:254 36:3092 37:4596 38:9242 39:909 40:172 41:4195 42:1982 43:2636 44:376 45:18590 46:5098 47:318 49:1942 50:1880 51:591 52:1568 54:321 55:1086 56:11 57:265 58:2208 59:1266 60:1172 61:2828 62:2933 63:1795 64:5447 65:2172 66:4606 67:3047 68:1123 69:3843 70:1074 71:625 72:2827 74:2779 75:1507 76:616 77:2713 78:1891 79:1713 80:2220 81:2051 82:3138 83:1446 84:1862 85:3452 86:1078 87:2137 88:1294 89:4412 90:771 91:8391 92:2725 93:2903 94:4026 95:4343 96:1421 97:311 98:978 99:698 100:73 101:1191 102:3849 103:32634 104:5103 105:762 106:1034 107:2664 108:1234 109:4086 110:2248 111:3277 112:2130 113:1812 114:1988 115:2113 116:2077 117:2522 118:2884 119:1923 120:1994 121:1373 122:2770 123:2177 124:1629 125:2887 126:91 128:1575 129:960 130:1292 131:1996 132:773 133:449 134:1525 135:334 136:1348 137:1118 138:2829 139:1596 140:1598 141:1504 142:1894 143:1830 144:1145 145:527 146:2168 147:2109 148:2707 149:2888 150:1269 151:1966 152:2090 153:512 154:7485 155:1742 156:3018 157:1923 158:1323 159:2489 160:3599 161:1849 162:3829 163:2199 164:1860 165:1972 166:1494 167:1959 168:3996 169:789 170:5106 171:1021 172:4438 173:3312 174:917 175:1307 176:3708 177:4677 178:3710 179:2296 180:2750 181:4086 182:3442 183:2183 184:2058 185:21580 186:5154 187:4508 188:4256 189:4283 190:9582 191:1482 192:11271 193:9479 194:7814 195:5540 196:3268 197:3668 198:6066 199:8515 200:8086 201:6372 202:10247 203:10635 204:4544 205:3612 206:4458 207:3498 208:4228 209:5122 210:4547 211:2534 212:4568 213:3737 214:1031 215:48 216:6748 217:3151 218:1355 219:394 220:2089 221:1132 222:723 223:2455 End of report