IPv4 R&E Routing Table Report 23:05 GMT Thu 26 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: 986103 Prefixes after maximum aggregation (per Origin AS): 381290 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 484025 Number of IPv4 prefixes with a valid ROA: 550682 Number of IPv4 prefixes with an invalid ROA: 1017 Number of IPv4 prefixes with no ROA: 434404 Total ASes present in the Internet Routing Table: 76817 Prefixes per ASN: 12.84 Origin-only ASes present in the Internet Routing Table: 65851 Origin ASes announcing only one prefix: 26874 Transit ASes present in the Internet Routing Table: 10966 Transit-only ASes present in the Internet Routing Table: 530 Paths with bogon ASNs present in the IPv4 Routing Table: 35 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: 1171 Number of instances of unregistered ASNs: 1208 Number of 32-bit ASNs allocated by the RIRs: 46652 Number of 32-bit ASNs visible in the Routing Table: 38403 Prefixes from 32-bit ASNs in the Routing Table: 205379 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 454 Number of addresses announced to Internet: 3105586944 Equivalent to 185 /8s, 27 /16s and 127 /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: 321879 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261136 Total APNIC prefixes after maximum aggregation: 77654 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251795 Unique aggregates announced from the APNIC address blocks: 104433 APNIC Region origin ASes present in the Internet Routing Table: 14615 APNIC Prefixes per ASN: 17.23 APNIC Region origin ASes announcing only one prefix: 4427 APNIC Region transit ASes present in the Internet Routing Table: 1958 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: 10167 Number of APNIC addresses announced to Internet: 748719616 Equivalent to 44 /8s, 160 /16s and 142 /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: 289442 Total ARIN prefixes after maximum aggregation: 131189 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290930 Unique aggregates announced from the ARIN address blocks: 139798 ARIN Region origin ASes present in the Internet Routing Table: 19192 ARIN Prefixes per ASN: 15.16 ARIN Region origin ASes announcing only one prefix: 7026 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: 5233 Number of ARIN addresses announced to Internet: 1349139456 Equivalent to 80 /8s, 106 /16s and 60 /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: 275279 Total RIPE prefixes after maximum aggregation: 135333 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274055 Unique aggregates announced from the RIPE address blocks: 176561 RIPE Region origin ASes present in the Internet Routing Table: 28915 RIPE Prefixes per ASN: 9.48 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 3985 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: 12500 Number of RIPE addresses announced to Internet: 731172352 Equivalent to 43 /8s, 148 /16s and 206 /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: 123838 Total LACNIC prefixes after maximum aggregation: 29707 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120332 Unique aggregates announced from the LACNIC address blocks: 48919 LACNIC Region origin ASes present in the Internet Routing Table: 11275 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2513 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: 9219 Number of LACNIC addresses announced to Internet: 171228928 Equivalent to 10 /8s, 52 /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: 35237 Total AfriNIC prefixes after maximum aggregation: 6634 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48537 Unique aggregates announced from the AfriNIC address blocks: 13904 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 25.28 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 377 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: 1284 Number of AfriNIC addresses announced to Internet: 105057280 Equivalent to 6 /8s, 67 /16s and 12 /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 6154 846 652 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4436 534 309 BBIL-AP BHARTI Airtel Ltd., IN 18403 4367 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 3284 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2895 857 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2288 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 13600 40953 5217 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3506 8758 851 COGENT-174, US 22773 3352 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3195 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 7673 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3906 359 2108 M247, RO 12389 3116 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 TELLCOM-AS, TR 212238 2329 171 1707 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 8551 1430 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 12204 3256 574 UNINET, MX 10620 3506 481 1018 Telmex Colombia S.A., CO 13999 2540 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 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1061 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1053 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 1822 644 27 RAYA-AS, EG 24863 1622 389 17 LINKdotNET-AS, EG 29571 1607 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 570 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 544 57 58 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 13600 40953 5217 AMAZON-02, US 8151 12204 3256 574 UNINET, MX 9808 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7673 1713 148 UNI2-AS, ES 7545 6154 846 652 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4781 317 604 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4436 534 309 BBIL-AP BHARTI Airtel Ltd., IN 18403 4367 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 12204 11630 UNINET, MX 9808 11415 11301 CHINAMOBILE-CN China Mobile Communications Grou 12479 7673 7525 UNI2-AS, ES 7545 6154 5502 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4367 4341 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4436 4127 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 23.140.164.0/24 Origin: 396108 WHYLE-LABS-SELF-01, CA 23.140.164.0/24 Transit: 20473 AS-VULTR, 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 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 /16:13778 /17:8188 /18:13430 /19:24408 /20:43873 /21:51606 /22:111844 /23:102504 /24:612098 /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 6596 7673 UNI2-AS, ES 8151 6418 12204 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 2346 13600 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) ---------------------------------------------- 1:2388 2:1496 3:823 4:10 5:4749 6:161 7:6 8:1567 9:1 11:172 12:1345 13:443 14:2528 15:365 16:285 17:377 18:919 20:554 21:4 22:188 23:7592 24:2813 25:2 27:2766 29:19 31:3311 32:35 33:1 34:83 35:255 36:3195 37:4571 38:9352 39:906 40:205 41:4267 42:1891 43:2660 44:373 45:18732 46:5085 47:323 49:1930 50:1886 51:593 52:1556 54:324 55:1098 56:11 57:269 58:2234 59:1293 60:1172 61:2830 62:2925 63:1788 64:5488 65:2175 66:4645 67:3071 68:1120 69:3841 70:1068 71:620 72:2854 74:2776 75:1506 76:607 77:2763 78:1887 79:1727 80:2208 81:2070 82:3172 83:1454 84:1866 85:3450 86:1090 87:2124 88:1307 89:4405 90:777 91:8392 92:2736 93:2931 94:4037 95:4395 96:1431 97:310 98:981 99:685 100:72 101:1421 102:3882 103:32973 104:5213 105:765 106:975 107:2651 108:1242 109:4046 110:2246 111:3282 112:2141 113:1855 114:1995 115:2188 116:2084 117:2542 118:2927 119:1916 120:2087 121:1374 122:2779 123:2209 124:1636 125:2917 126:91 128:1572 129:945 130:1287 131:2044 132:771 133:451 134:1551 135:349 136:1347 137:1119 138:2816 139:1583 140:1622 141:1510 142:1914 143:1920 144:1180 145:559 146:2175 147:2113 148:2711 149:2929 150:1283 151:2110 152:2072 153:524 154:7898 155:1764 156:3160 157:1929 158:1332 159:2497 160:3605 161:1854 162:3868 163:2214 164:1858 165:2031 166:1503 167:1990 168:3952 169:780 170:5121 171:1004 172:4451 173:3355 174:919 175:1325 176:3712 177:4713 178:3889 179:2314 180:2769 181:4084 182:3463 183:2222 184:2064 185:21582 186:5166 187:4568 188:4262 189:4313 190:9582 191:1488 192:11288 193:9468 194:7806 195:5534 196:3300 197:3246 198:6060 199:8553 200:8075 201:6381 202:10328 203:10653 204:4559 205:3605 206:4407 207:3467 208:4259 209:5111 210:4573 211:2540 212:4565 213:3760 214:1014 215:45 216:6749 217:3196 218:1360 219:395 220:2138 221:1154 222:724 223:2522 End of report