IPv4 R&E Routing Table Report 23:05 GMT Sun 10 Aug, 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: 992103 Prefixes after maximum aggregation (per Origin AS): 384536 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488899 Number of IPv4 prefixes with a valid ROA: 560134 Number of IPv4 prefixes with an invalid ROA: 816 Number of IPv4 prefixes with no ROA: 431153 Total ASes present in the Internet Routing Table: 77068 Prefixes per ASN: 12.87 Origin-only ASes present in the Internet Routing Table: 66005 Origin ASes announcing only one prefix: 26972 Transit ASes present in the Internet Routing Table: 11063 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: 4.8 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 1126 Number of instances of unregistered ASNs: 1158 Number of 32-bit ASNs allocated by the RIRs: 47114 Number of 32-bit ASNs visible in the Routing Table: 38720 Prefixes from 32-bit ASNs in the Routing Table: 207287 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: 422 Number of addresses announced to Internet: 3107615488 Equivalent to 185 /8s, 58 /16s and 115 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 323002 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264746 Total APNIC prefixes after maximum aggregation: 78217 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 255650 Unique aggregates announced from the APNIC address blocks: 104899 APNIC Region origin ASes present in the Internet Routing Table: 14716 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 4474 APNIC Region transit ASes present in the Internet Routing Table: 2003 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: 10271 Number of APNIC addresses announced to Internet: 749495552 Equivalent to 44 /8s, 172 /16s and 101 /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: 290811 Total ARIN prefixes after maximum aggregation: 132265 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 292309 Unique aggregates announced from the ARIN address blocks: 141798 ARIN Region origin ASes present in the Internet Routing Table: 19231 ARIN Prefixes per ASN: 15.20 ARIN Region origin ASes announcing only one prefix: 7044 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: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5275 Number of ARIN addresses announced to Internet: 1349440256 Equivalent to 80 /8s, 110 /16s and 211 /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: 276616 Total RIPE prefixes after maximum aggregation: 136608 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 275662 Unique aggregates announced from the RIPE address blocks: 178587 RIPE Region origin ASes present in the Internet Routing Table: 28997 RIPE Prefixes per ASN: 9.51 RIPE Region origin ASes announcing only one prefix: 12089 RIPE Region transit ASes present in the Internet Routing Table: 4023 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12627 Number of RIPE addresses announced to Internet: 732134912 Equivalent to 43 /8s, 163 /16s and 126 /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: 124088 Total LACNIC prefixes after maximum aggregation: 29924 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 120400 Unique aggregates announced from the LACNIC address blocks: 49077 LACNIC Region origin ASes present in the Internet Routing Table: 11274 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2534 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9237 Number of LACNIC addresses announced to Internet: 171168256 Equivalent to 10 /8s, 51 /16s and 210 /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: 34716 Total AfriNIC prefixes after maximum aggregation: 6791 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 47660 Unique aggregates announced from the AfriNIC address blocks: 14163 AfriNIC Region origin ASes present in the Internet Routing Table: 1948 AfriNIC Prefixes per ASN: 24.47 AfriNIC Region origin ASes announcing only one prefix: 708 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 41 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1310 Number of AfriNIC addresses announced to Internet: 105136384 Equivalent to 6 /8s, 68 /16s and 65 /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 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4574 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4469 536 313 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3709 1044 67 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1869 101 VNPT-AS-VN VNPT Corp, VN 56046 2969 812 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2922 865 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2176 427 181 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 13780 41094 5305 AMAZON-02, US 11492 4783 317 680 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3641 1320 82 SHAW, CA 174 3629 8769 849 COGENT-174, US 22773 3338 3030 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3204 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 2917 1231 2173 AKAMAI-AS, US 4155 2902 227 1729 USDA-1, 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 7566 1711 153 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3907 3395 123 AKAMAI-ASN1, NL 9009 3860 366 2177 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2326 164 1691 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1581 1852 14 TE-AS TE-AS, EG 203020 1521 191 669 HOSTROYALE, IN 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 12326 3272 577 UNINET, MX 10620 3475 472 1052 Telmex Colombia S.A., CO 13999 2529 511 354 Mega Cable, S.A. de C.V., MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1183 371 22 Telefonica del Peru S.A.A., PE 11664 1070 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 2487 55 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 1770 660 28 RAYA-AS, EG 29571 1488 94 32 ORANGE-COTE-IVOIRE, CI 36992 1419 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 529 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 13780 41094 5305 AMAZON-02, US 9808 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12326 3272 577 UNINET, MX 12479 7566 1711 153 UNI2-AS, ES 7545 6139 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4783 317 680 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 18403 4574 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4469 536 313 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 12613 12498 CHINAMOBILE-CN China Mobile Communications Grou 8151 12326 11749 UNINET, MX 12479 7566 7413 UNI2-AS, ES 7545 6139 5516 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4574 4547 FPT-AS-AP FPT Telecom Company, VN 9498 4469 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4783 4103 CABLEONE, US 7552 3942 3915 VIETEL-AS-AP Viettel Group, VN 20940 3907 3784 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 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 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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: 21859 ZEN-ECN, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /12:298 /13:577 /14:1199 /15:2129 /16:13767 /17:8163 /18:13432 /19:24437 /20:43862 /21:51630 /22:111911 /23:102691 /24:617844 /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 8151 6545 12326 UNINET, MX 12479 6528 7566 UNI2-AS, ES 11492 3593 4783 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3438 3641 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2489 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13780 AMAZON-02, US 30036 2297 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3475 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) ---------------------------------------------- 1:2423 2:1498 3:875 4:10 5:4758 6:157 7:6 8:1546 9:2 11:172 12:1334 13:471 14:2583 15:370 16:286 17:379 18:899 20:563 21:4 22:188 23:7742 24:2651 25:2 27:2798 29:19 31:3366 32:35 33:1 34:83 35:260 36:4230 37:4564 38:9539 39:965 40:256 41:4278 42:2044 43:2732 44:379 45:18698 46:5105 47:338 49:1888 50:2038 51:592 52:1552 54:324 55:1109 56:11 57:271 58:2220 59:1293 60:1173 61:2919 62:3004 63:1779 64:5570 65:2147 66:4738 67:3092 68:1070 69:3879 70:1038 71:625 72:2854 74:2808 75:1505 76:606 77:2770 78:1893 79:1733 80:2209 81:2063 82:3220 83:1435 84:1916 85:3454 86:1110 87:2135 88:1311 89:4433 90:774 91:8413 92:2750 93:2956 94:4106 95:4430 96:1449 97:310 98:954 99:702 100:71 101:1471 102:3904 103:32890 104:5264 105:761 106:875 107:2654 108:1245 109:4191 110:2244 111:3476 112:2418 113:1861 114:1975 115:2191 116:2091 117:2683 118:2973 119:1915 120:2185 121:1326 122:2794 123:2237 124:1703 125:2923 126:91 128:1574 129:966 130:1289 131:2041 132:772 133:450 134:1593 135:355 136:1469 137:1129 138:2813 139:1596 140:1623 141:1530 142:1921 143:1950 144:1188 145:576 146:2172 147:2100 148:2708 149:2948 150:1292 151:2302 152:2094 153:527 154:7616 155:1874 156:3068 157:1951 158:1374 159:2522 160:3586 161:1900 162:3882 163:2250 164:1877 165:2460 166:1534 167:2029 168:3867 169:775 170:5198 171:998 172:4229 173:3402 174:910 175:1325 176:3733 177:4684 178:3979 179:2311 180:2730 181:4149 182:3592 183:2365 184:2059 185:21576 186:5196 187:4645 188:4274 189:4348 190:9514 191:1509 192:11316 193:9471 194:7772 195:5600 196:3275 197:3175 198:6091 199:8602 200:8068 201:6398 202:10356 203:10660 204:4582 205:3621 206:4504 207:3511 208:4274 209:5106 210:4655 211:2643 212:4574 213:3824 214:1027 215:50 216:6784 217:3275 218:1421 219:398 220:2148 221:1208 222:741 223:2793 End of report