IPv4 R&E Routing Table Report 23:05 GMT Mon 30 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: 985242 Prefixes after maximum aggregation (per Origin AS): 381246 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 484225 Number of IPv4 prefixes with a valid ROA: 551100 Number of IPv4 prefixes with an invalid ROA: 712 Number of IPv4 prefixes with no ROA: 433430 Total ASes present in the Internet Routing Table: 76825 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65865 Origin ASes announcing only one prefix: 26879 Transit ASes present in the Internet Routing Table: 10960 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 33 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: 1142 Number of instances of unregistered ASNs: 1181 Number of 32-bit ASNs allocated by the RIRs: 46719 Number of 32-bit ASNs visible in the Routing Table: 38419 Prefixes from 32-bit ASNs in the Routing Table: 205152 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 444 Number of addresses announced to Internet: 3105627136 Equivalent to 185 /8s, 28 /16s and 28 /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: 321454 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260885 Total APNIC prefixes after maximum aggregation: 77611 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251602 Unique aggregates announced from the APNIC address blocks: 104507 APNIC Region origin ASes present in the Internet Routing Table: 14615 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4427 APNIC Region transit ASes present in the Internet Routing Table: 1965 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: 10164 Number of APNIC addresses announced to Internet: 748783616 Equivalent to 44 /8s, 161 /16s and 136 /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: 288792 Total ARIN prefixes after maximum aggregation: 131124 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290208 Unique aggregates announced from the ARIN address blocks: 139802 ARIN Region origin ASes present in the Internet Routing Table: 19190 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7028 ARIN Region transit ASes present in the Internet Routing Table: 1922 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: 5229 Number of ARIN addresses announced to Internet: 1349246976 Equivalent to 80 /8s, 107 /16s and 224 /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: 275159 Total RIPE prefixes after maximum aggregation: 135392 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274071 Unique aggregates announced from the RIPE address blocks: 176628 RIPE Region origin ASes present in the Internet Routing Table: 28929 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3983 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: 12517 Number of RIPE addresses announced to Internet: 731121152 Equivalent to 43 /8s, 148 /16s and 6 /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: 123920 Total LACNIC prefixes after maximum aggregation: 29717 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120416 Unique aggregates announced from the LACNIC address blocks: 48953 LACNIC Region origin ASes present in the Internet Routing Table: 11275 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2515 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: 9225 Number of LACNIC addresses announced to Internet: 171166976 Equivalent to 10 /8s, 51 /16s and 205 /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: 35344 Total AfriNIC prefixes after maximum aggregation: 6653 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48501 Unique aggregates announced from the AfriNIC address blocks: 13935 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 25.26 AfriNIC Region origin ASes announcing only one prefix: 688 AfriNIC Region transit ASes present in the Internet Routing Table: 369 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: 105058560 Equivalent to 6 /8s, 67 /16s and 17 /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 6125 839 625 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4429 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4362 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3909 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3287 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2895 857 524 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2290 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2184 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 13547 40945 5194 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3517 8768 862 COGENT-174, US 22773 3345 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 2962 1243 2208 AKAMAI-AS, US 4155 2839 215 1722 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 7675 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3766 350 2097 M247, RO 12389 3116 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 TELLCOM-AS, TR 212238 2330 169 1698 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 8551 1425 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 12232 3256 576 UNINET, MX 10620 3506 481 1018 Telmex Colombia S.A., CO 13999 2539 538 355 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 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 1066 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 1621 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 1060 520 44 Vodafone-, EG 36914 572 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 13547 40945 5194 AMAZON-02, US 8151 12232 3256 576 UNINET, MX 9808 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7675 1713 148 UNI2-AS, ES 7545 6125 839 625 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4781 317 604 CABLEONE, US 9498 4429 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4362 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 12232 11656 UNINET, MX 9808 11415 11301 CHINAMOBILE-CN China Mobile Communications Grou 12479 7675 7527 UNI2-AS, ES 7545 6125 5500 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4362 4336 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4429 4116 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 3883 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 /16:13773 /17:8177 /18:13422 /19:24413 /20:43824 /21:51567 /22:111785 /23:102418 /24:611489 /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 7675 UNI2-AS, ES 8151 6445 12232 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2496 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2344 13547 AMAZON-02, US 30036 2260 2601 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) ---------------------------------------------- 1:2387 2:1502 3:816 4:10 5:4709 6:161 7:6 8:1571 9:1 11:172 12:1341 13:445 14:2537 15:364 16:285 17:379 18:914 20:554 21:4 22:188 23:7595 24:2671 25:2 27:2710 29:19 31:3298 32:35 33:1 34:83 35:255 36:3201 37:4559 38:9315 39:906 40:207 41:4288 42:1887 43:2690 44:372 45:18693 46:5113 47:325 49:1930 50:1884 51:592 52:1556 54:321 55:1095 56:11 57:269 58:2231 59:1275 60:1172 61:2826 62:2921 63:1791 64:5473 65:2175 66:4659 67:3068 68:1085 69:3837 70:1047 71:621 72:2846 74:2776 75:1506 76:608 77:2771 78:1885 79:1729 80:2201 81:2071 82:3159 83:1441 84:1865 85:3454 86:1087 87:2129 88:1310 89:4397 90:777 91:8378 92:2736 93:2935 94:4045 95:4374 96:1441 97:309 98:959 99:683 100:72 101:1426 102:3905 103:32906 104:5210 105:760 106:975 107:2651 108:1243 109:4114 110:2246 111:3239 112:2135 113:1846 114:1998 115:2190 116:2086 117:2546 118:2917 119:1920 120:2084 121:1371 122:2783 123:2196 124:1652 125:2897 126:91 128:1572 129:948 130:1281 131:2031 132:772 133:451 134:1552 135:349 136:1346 137:1116 138:2802 139:1593 140:1619 141:1512 142:1912 143:1949 144:1180 145:559 146:2168 147:2105 148:2708 149:2930 150:1285 151:2107 152:2081 153:524 154:7782 155:1758 156:3138 157:1928 158:1330 159:2502 160:3614 161:1853 162:3876 163:2217 164:1864 165:2038 166:1505 167:1990 168:3962 169:779 170:5123 171:1006 172:4447 173:3353 174:912 175:1325 176:3707 177:4708 178:3876 179:2309 180:2769 181:4107 182:3480 183:2214 184:2067 185:21597 186:5170 187:4568 188:4262 189:4303 190:9575 191:1486 192:11273 193:9470 194:7814 195:5537 196:3306 197:3259 198:6046 199:8542 200:8063 201:6375 202:10355 203:10604 204:4565 205:3599 206:4412 207:3505 208:4248 209:5111 210:4555 211:2539 212:4563 213:3765 214:1013 215:46 216:6742 217:3193 218:1360 219:396 220:2138 221:1156 222:724 223:2522 End of report