IPv4 R&E Routing Table Report 23:05 GMT Mon 09 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: 981698 Prefixes after maximum aggregation (per Origin AS): 379482 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482341 Number of IPv4 prefixes with a valid ROA: 547247 Number of IPv4 prefixes with an invalid ROA: 663 Number of IPv4 prefixes with no ROA: 433788 Total ASes present in the Internet Routing Table: 76787 Prefixes per ASN: 12.78 Origin-only ASes present in the Internet Routing Table: 65840 Origin ASes announcing only one prefix: 26909 Transit ASes present in the Internet Routing Table: 10947 Transit-only ASes present in the Internet Routing Table: 549 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: 1037 Number of instances of unregistered ASNs: 1069 Number of 32-bit ASNs allocated by the RIRs: 46629 Number of 32-bit ASNs visible in the Routing Table: 38301 Prefixes from 32-bit ASNs in the Routing Table: 203168 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: 434 Number of addresses announced to Internet: 3109713664 Equivalent to 185 /8s, 90 /16s and 119 /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: 320876 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258348 Total APNIC prefixes after maximum aggregation: 77077 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249816 Unique aggregates announced from the APNIC address blocks: 104263 APNIC Region origin ASes present in the Internet Routing Table: 14574 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4429 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: 10122 Number of APNIC addresses announced to Internet: 748690944 Equivalent to 44 /8s, 160 /16s and 30 /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: 288883 Total ARIN prefixes after maximum aggregation: 130984 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290512 Unique aggregates announced from the ARIN address blocks: 139656 ARIN Region origin ASes present in the Internet Routing Table: 19213 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7044 ARIN Region transit ASes present in the Internet Routing Table: 1925 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: 5220 Number of ARIN addresses announced to Internet: 1353117440 Equivalent to 80 /8s, 166 /16s and 239 /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: 134519 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272629 Unique aggregates announced from the RIPE address blocks: 175465 RIPE Region origin ASes present in the Internet Routing Table: 28927 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3991 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: 12472 Number of RIPE addresses announced to Internet: 730982912 Equivalent to 43 /8s, 145 /16s and 234 /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: 123933 Total LACNIC prefixes after maximum aggregation: 29552 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120269 Unique aggregates announced from the LACNIC address blocks: 49023 LACNIC Region origin ASes present in the Internet Routing Table: 11251 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2674 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: 9206 Number of LACNIC addresses announced to Internet: 171793920 Equivalent to 10 /8s, 61 /16s and 94 /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: 35513 Total AfriNIC prefixes after maximum aggregation: 6717 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48038 Unique aggregates announced from the AfriNIC address blocks: 13545 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.09 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 1281 Number of AfriNIC addresses announced to Internet: 104928256 Equivalent to 6 /8s, 65 /16s and 20 /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 11060 8758 99 CHINAMOBILE-CN China Mobile Communication 7545 6178 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4456 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 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 13637 40955 5225 AMAZON-02, US 11492 4760 316 593 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3494 8746 890 COGENT-174, US 22773 3345 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3183 3854 425 GOOGLE-CLOUD-PLATFORM, US 16625 3002 1251 2222 AKAMAI-AS, US 36352 2815 230 858 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 7692 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3931 3395 123 AKAMAI-ASN1, NL 9009 3880 353 2082 M247, RO 12389 3106 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2255 164 1644 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 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 12162 3231 589 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 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 1038 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 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 1066 523 47 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 557 82 3 KENET-AS, KE 15399 542 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 13637 40955 5225 AMAZON-02, US 8151 12162 3231 589 UNINET, MX 9808 11060 8758 99 CHINAMOBILE-CN China Mobile Communication 12479 7692 1714 148 UNI2-AS, ES 7545 6178 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4760 316 593 CABLEONE, US 18403 4456 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 3931 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 12162 11573 UNINET, MX 9808 11060 10961 CHINAMOBILE-CN China Mobile Communications Grou 12479 7692 7544 UNI2-AS, ES 7545 6178 5529 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4456 4431 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 3931 3808 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 /16:13850 /17:8207 /18:13583 /19:24440 /20:43781 /21:51448 /22:111635 /23:102013 /24:608348 /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 7692 UNI2-AS, ES 8151 6374 12162 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 2493 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2372 13637 AMAZON-02, US 30036 2242 2583 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 2:1481 3:815 4:9 5:4711 6:162 7:6 8:1574 9:1 11:172 12:1352 13:437 14:2519 15:360 16:285 17:376 18:920 20:545 21:4 22:188 23:7546 24:2744 25:2 27:2766 29:19 31:3281 32:36 33:1 34:83 35:254 36:3072 37:4451 38:9240 39:909 40:172 41:4186 42:1970 43:2638 44:376 45:18556 46:5095 47:317 49:1939 50:1883 51:591 52:1570 54:325 55:1079 56:11 57:264 58:2204 59:1268 60:1172 61:2827 62:2929 63:1795 64:5443 65:2174 66:4607 67:3037 68:1122 69:3844 70:1074 71:625 72:2820 74:2786 75:1507 76:616 77:2715 78:1888 79:1713 80:2222 81:2047 82:3126 83:1447 84:1863 85:3444 86:1075 87:2132 88:1295 89:4405 90:769 91:8370 92:2713 93:2913 94:4044 95:4333 96:1418 97:311 98:979 99:697 100:73 101:1406 102:3836 103:32646 104:5088 105:765 106:1034 107:2658 108:1236 109:4077 110:2247 111:3262 112:2128 113:1812 114:1982 115:2099 116:2071 117:2521 118:2883 119:1923 120:1971 121:1373 122:2757 123:2177 124:1629 125:2887 126:90 128:1567 129:961 130:1291 131:1983 132:772 133:449 134:1526 135:334 136:1350 137:1113 138:2818 139:1593 140:1596 141:1507 142:1901 143:1823 144:1146 145:527 146:2175 147:2114 148:2709 149:2882 150:1269 151:1949 152:2087 153:521 154:7459 155:1741 156:3007 157:1918 158:1325 159:2487 160:3599 161:1848 162:3827 163:2190 164:1860 165:2223 166:1488 167:1955 168:4004 169:789 170:5114 171:1018 172:4442 173:3310 174:917 175:1306 176:3701 177:4682 178:3703 179:2301 180:2752 181:4089 182:3447 183:2172 184:2059 185:21559 186:5158 187:4495 188:4246 189:4262 190:9577 191:1473 192:11270 193:9472 194:7797 195:5535 196:3276 197:3661 198:6068 199:8531 200:8074 201:6350 202:10247 203:10627 204:4542 205:3591 206:4464 207:3491 208:4231 209:5122 210:4544 211:2533 212:4564 213:3719 214:1027 215:48 216:6749 217:3143 218:1354 219:394 220:2089 221:1123 222:722 223:2451 End of report