IPv4 R&E Routing Table Report 23:05 GMT Sun 29 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: 985670 Prefixes after maximum aggregation (per Origin AS): 381244 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 484073 Number of IPv4 prefixes with a valid ROA: 550366 Number of IPv4 prefixes with an invalid ROA: 973 Number of IPv4 prefixes with no ROA: 434331 Total ASes present in the Internet Routing Table: 76784 Prefixes per ASN: 12.84 Origin-only ASes present in the Internet Routing Table: 65819 Origin ASes announcing only one prefix: 26874 Transit ASes present in the Internet Routing Table: 10965 Transit-only ASes present in the Internet Routing Table: 539 Paths with bogon ASNs present in the IPv4 Routing Table: 36 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1111 Number of instances of unregistered ASNs: 1150 Number of 32-bit ASNs allocated by the RIRs: 46719 Number of 32-bit ASNs visible in the Routing Table: 38363 Prefixes from 32-bit ASNs in the Routing Table: 204997 Number of bogon 32-bit ASNs visible in the Routing Table: 100 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 443 Number of addresses announced to Internet: 3105581824 Equivalent to 185 /8s, 27 /16s and 107 /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: 321566 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260958 Total APNIC prefixes after maximum aggregation: 77551 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251659 Unique aggregates announced from the APNIC address blocks: 104310 APNIC Region origin ASes present in the Internet Routing Table: 14569 APNIC Prefixes per ASN: 17.27 APNIC Region origin ASes announcing only one prefix: 4429 APNIC Region transit ASes present in the Internet Routing Table: 1963 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10117 Number of APNIC addresses announced to Internet: 748704512 Equivalent to 44 /8s, 160 /16s and 83 /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: 288894 Total ARIN prefixes after maximum aggregation: 131223 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290296 Unique aggregates announced from the ARIN address blocks: 139799 ARIN Region origin ASes present in the Internet Routing Table: 19192 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7028 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: 5230 Number of ARIN addresses announced to Internet: 1349259264 Equivalent to 80 /8s, 108 /16s and 16 /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: 275299 Total RIPE prefixes after maximum aggregation: 135368 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274123 Unique aggregates announced from the RIPE address blocks: 176655 RIPE Region origin ASes present in the Internet Routing Table: 28933 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 3984 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: 12515 Number of RIPE addresses announced to Internet: 731107840 Equivalent to 43 /8s, 147 /16s and 210 /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: 124068 Total LACNIC prefixes after maximum aggregation: 29729 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120563 Unique aggregates announced from the LACNIC address blocks: 48987 LACNIC Region origin ASes present in the Internet Routing Table: 11272 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2508 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9220 Number of LACNIC addresses announced to Internet: 171171584 Equivalent to 10 /8s, 51 /16s and 223 /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: 35340 Total AfriNIC prefixes after maximum aggregation: 6636 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 48586 Unique aggregates announced from the AfriNIC address blocks: 13923 AfriNIC Region origin ASes present in the Internet Routing Table: 1918 AfriNIC Prefixes per ASN: 25.33 AfriNIC Region origin ASes announcing only one prefix: 687 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 105089024 Equivalent to 6 /8s, 67 /16s and 136 /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 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6152 841 651 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4453 535 315 BBIL-AP BHARTI Airtel Ltd., IN 18403 4363 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3918 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3714 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3285 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2896 857 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2290 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2182 434 194 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 13577 40949 5206 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3496 8758 852 COGENT-174, US 22773 3352 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3193 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 2963 1243 2209 AKAMAI-AS, US 36352 2833 231 860 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 7676 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3893 358 2098 M247, RO 12389 3116 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 TELLCOM-AS, TR 212238 2310 169 1677 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 8551 1428 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12233 3256 574 UNINET, MX 10620 3506 481 1018 Telmex Colombia S.A., CO 13999 2537 538 355 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 11664 1065 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1054 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 1823 660 28 RAYA-AS, EG 24863 1623 389 17 LINKdotNET-AS, EG 29571 1606 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1076 523 47 Vodafone-, EG 36914 569 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 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 13577 40949 5206 AMAZON-02, US 8151 12233 3256 574 UNINET, MX 9808 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7676 1713 148 UNI2-AS, ES 7545 6152 841 651 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4781 317 604 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4453 535 315 BBIL-AP BHARTI Airtel Ltd., IN 18403 4363 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3932 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 12233 11659 UNINET, MX 9808 11415 11301 CHINAMOBILE-CN China Mobile Communications Grou 12479 7676 7528 UNI2-AS, ES 7545 6152 5501 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4363 4337 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4453 4138 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3932 3809 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /13:582 /14:1200 /15:2130 /16:13782 /17:8181 /18:13421 /19:24413 /20:43839 /21:51587 /22:111799 /23:102468 /24:611806 /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 6599 7676 UNI2-AS, ES 8151 6444 12233 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2502 3352 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2347 13577 AMAZON-02, US 30036 2259 2600 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2193 3506 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) ---------------------------------------------- 1:2389 2:1500 3:817 4:10 5:4701 6:161 7:6 8:1565 9:1 11:172 12:1342 13:445 14:2535 15:365 16:285 17:379 18:920 20:554 21:4 22:188 23:7589 24:2672 25:2 27:2771 29:19 31:3309 32:35 33:1 34:83 35:255 36:3196 37:4538 38:9302 39:906 40:207 41:4284 42:1887 43:2692 44:373 45:18723 46:5110 47:323 49:1929 50:1883 51:593 52:1556 54:323 55:1094 56:11 57:268 58:2233 59:1294 60:1172 61:2830 62:2922 63:1790 64:5486 65:2172 66:4652 67:3071 68:1086 69:3836 70:1051 71:621 72:2846 74:2777 75:1506 76:608 77:2772 78:1887 79:1728 80:2204 81:2073 82:3168 83:1440 84:1867 85:3454 86:1085 87:2127 88:1309 89:4391 90:777 91:8379 92:2735 93:2934 94:4046 95:4397 96:1431 97:310 98:959 99:688 100:72 101:1422 102:3893 103:32842 104:5205 105:765 106:974 107:2651 108:1244 109:4105 110:2246 111:3238 112:2140 113:1852 114:1999 115:2188 116:2084 117:2547 118:2915 119:1919 120:2090 121:1374 122:2784 123:2207 124:1635 125:2917 126:91 128:1574 129:946 130:1280 131:2050 132:772 133:451 134:1549 135:348 136:1347 137:1118 138:2820 139:1589 140:1623 141:1509 142:1914 143:1938 144:1180 145:559 146:2169 147:2112 148:2713 149:2931 150:1284 151:2092 152:2077 153:524 154:7904 155:1760 156:3142 157:1922 158:1333 159:2499 160:3601 161:1853 162:3874 163:2214 164:1865 165:2032 166:1511 167:1990 168:3968 169:780 170:5133 171:1007 172:4442 173:3353 174:913 175:1325 176:3708 177:4712 178:3895 179:2317 180:2768 181:4111 182:3472 183:2214 184:2066 185:21593 186:5176 187:4580 188:4259 189:4326 190:9583 191:1485 192:11265 193:9473 194:7817 195:5542 196:3293 197:3261 198:6054 199:8547 200:8078 201:6381 202:10333 203:10648 204:4565 205:3601 206:4415 207:3501 208:4260 209:5109 210:4565 211:2540 212:4562 213:3763 214:1016 215:46 216:6739 217:3196 218:1360 219:395 220:2139 221:1154 222:724 223:2523 End of report