IPv4 R&E Routing Table Report 23:05 GMT Mon 23 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: 982950 Prefixes after maximum aggregation (per Origin AS): 380264 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 482698 Number of IPv4 prefixes with a valid ROA: 548106 Number of IPv4 prefixes with an invalid ROA: 1145 Number of IPv4 prefixes with no ROA: 433699 Total ASes present in the Internet Routing Table: 76745 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65779 Origin ASes announcing only one prefix: 26866 Transit ASes present in the Internet Routing Table: 10966 Transit-only ASes present in the Internet Routing Table: 535 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: 1163 Number of instances of unregistered ASNs: 1200 Number of 32-bit ASNs allocated by the RIRs: 46701 Number of 32-bit ASNs visible in the Routing Table: 38337 Prefixes from 32-bit ASNs in the Routing Table: 204640 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: 440 Number of addresses announced to Internet: 3105540864 Equivalent to 185 /8s, 26 /16s and 203 /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: 320892 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259743 Total APNIC prefixes after maximum aggregation: 77350 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251032 Unique aggregates announced from the APNIC address blocks: 104385 APNIC Region origin ASes present in the Internet Routing Table: 14605 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4433 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: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10148 Number of APNIC addresses announced to Internet: 748669184 Equivalent to 44 /8s, 159 /16s and 201 /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: 288913 Total ARIN prefixes after maximum aggregation: 131085 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290771 Unique aggregates announced from the ARIN address blocks: 139649 ARIN Region origin ASes present in the Internet Routing Table: 19201 ARIN Prefixes per ASN: 15.14 ARIN Region origin ASes announcing only one prefix: 7033 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: 5226 Number of ARIN addresses announced to Internet: 1349477632 Equivalent to 80 /8s, 111 /16s and 101 /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: 274091 Total RIPE prefixes after maximum aggregation: 134737 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 272856 Unique aggregates announced from the RIPE address blocks: 175620 RIPE Region origin ASes present in the Internet Routing Table: 28851 RIPE Prefixes per ASN: 9.46 RIPE Region origin ASes announcing only one prefix: 12039 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: 12462 Number of RIPE addresses announced to Internet: 730998272 Equivalent to 43 /8s, 146 /16s and 38 /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: 123780 Total LACNIC prefixes after maximum aggregation: 29675 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120277 Unique aggregates announced from the LACNIC address blocks: 48916 LACNIC Region origin ASes present in the Internet Routing Table: 11269 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2671 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: 9217 Number of LACNIC addresses announced to Internet: 171281664 Equivalent to 10 /8s, 53 /16s and 141 /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: 35260 Total AfriNIC prefixes after maximum aggregation: 6654 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 47574 Unique aggregates announced from the AfriNIC address blocks: 13732 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 24.78 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 374 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: 104913152 Equivalent to 6 /8s, 64 /16s and 217 /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 11244 8759 105 CHINAMOBILE-CN China Mobile Communication 7545 6181 846 648 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4435 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4369 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3918 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3713 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3282 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2894 857 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2195 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2180 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 13576 40951 5206 AMAZON-02, US 11492 4780 317 603 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 174 3586 8743 860 COGENT-174, US 22773 3349 3032 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3194 3854 429 GOOGLE-CLOUD-PLATFORM, US 16625 2984 1250 2213 AKAMAI-AS, US 36352 2821 230 853 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 7671 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3895 358 2099 M247, RO 12389 3114 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 575 TELLCOM-AS, TR 212238 2316 169 1698 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 8551 1421 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 12218 3256 574 UNINET, MX 10620 3505 481 1017 Telmex Colombia S.A., CO 13999 2534 537 354 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 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 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 1048 2503 52 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 1821 644 27 RAYA-AS, EG 24863 1623 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 553 153 218 INTERNET-SOLUTIONS, ZA 15399 543 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 13576 40951 5206 AMAZON-02, US 8151 12218 3256 574 UNINET, MX 9808 11244 8759 105 CHINAMOBILE-CN China Mobile Communication 12479 7671 1713 148 UNI2-AS, ES 7545 6181 846 648 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4780 317 603 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4435 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4369 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 12218 11644 UNINET, MX 9808 11244 11139 CHINAMOBILE-CN China Mobile Communications Grou 12479 7671 7523 UNI2-AS, ES 7545 6181 5533 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4369 4343 FPT-AS-AP FPT Telecom Company, VN 11492 4780 4177 CABLEONE, US 9498 4435 4124 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 23.147.240.0/24 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 /12:300 /13:581 /14:1199 /15:2127 /16:13794 /17:8183 /18:13439 /19:24418 /20:43852 /21:51448 /22:111694 /23:102191 /24:609561 /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 6593 7671 UNI2-AS, ES 8151 6432 12218 UNINET, MX 11492 3576 4780 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2500 3349 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2334 13576 AMAZON-02, US 30036 2256 2597 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2192 3505 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 2:1483 3:821 4:10 5:4818 6:162 7:6 8:1568 9:1 11:172 12:1342 13:447 14:2523 15:363 16:285 17:379 18:918 20:551 21:4 22:188 23:7580 24:2809 25:2 27:2767 29:19 31:3266 32:35 33:1 34:83 35:254 36:3162 37:4571 38:9391 39:906 40:188 41:4255 42:1914 43:2650 44:373 45:18630 46:5074 47:319 49:1929 50:1877 51:592 52:1560 54:320 55:1104 56:11 57:268 58:2208 59:1287 60:1171 61:2831 62:2894 63:1791 64:5491 65:2171 66:4619 67:3069 68:1121 69:3843 70:1067 71:622 72:2858 74:2780 75:1506 76:608 77:2735 78:1850 79:1675 80:2195 81:2052 82:3169 83:1463 84:1862 85:3438 86:1084 87:2110 88:1307 89:4418 90:769 91:8369 92:2722 93:2912 94:4023 95:4351 96:1432 97:311 98:983 99:685 100:71 101:1423 102:3866 103:32778 104:5160 105:764 106:981 107:2652 108:1243 109:4081 110:2247 111:3281 112:2128 113:1850 114:1994 115:2161 116:2079 117:2533 118:2917 119:1919 120:2065 121:1372 122:2784 123:2198 124:1632 125:2911 126:91 128:1574 129:947 130:1288 131:2037 132:776 133:451 134:1543 135:349 136:1347 137:1115 138:2817 139:1587 140:1616 141:1505 142:1914 143:1893 144:1177 145:545 146:2178 147:2112 148:2698 149:2933 150:1280 151:2083 152:2077 153:524 154:7377 155:1750 156:2848 157:1921 158:1324 159:2495 160:3597 161:1852 162:3858 163:2202 164:1858 165:2014 166:1501 167:1979 168:3960 169:786 170:5117 171:1008 172:4452 173:3339 174:919 175:1326 176:3701 177:4706 178:3740 179:2316 180:2751 181:4078 182:3460 183:2192 184:2070 185:21329 186:5166 187:4575 188:4262 189:4294 190:9575 191:1488 192:11280 193:9441 194:7787 195:5516 196:3289 197:3239 198:6061 199:8529 200:8090 201:6384 202:10280 203:10678 204:4559 205:3599 206:4436 207:3466 208:4266 209:5122 210:4603 211:2541 212:4570 213:3733 214:1024 215:48 216:6741 217:3160 218:1353 219:394 220:2084 221:1145 222:724 223:2495 End of report