IPv4 R&E Routing Table Report 23:05 GMT Tue 24 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: 983538 Prefixes after maximum aggregation (per Origin AS): 380571 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 482855 Number of IPv4 prefixes with a valid ROA: 548856 Number of IPv4 prefixes with an invalid ROA: 971 Number of IPv4 prefixes with no ROA: 433711 Total ASes present in the Internet Routing Table: 76757 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65793 Origin ASes announcing only one prefix: 26854 Transit ASes present in the Internet Routing Table: 10964 Transit-only ASes present in the Internet Routing Table: 531 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: 1164 Number of instances of unregistered ASNs: 1201 Number of 32-bit ASNs allocated by the RIRs: 46698 Number of 32-bit ASNs visible in the Routing Table: 38355 Prefixes from 32-bit ASNs in the Routing Table: 205009 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: 445 Number of addresses announced to Internet: 3105597440 Equivalent to 185 /8s, 27 /16s and 168 /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: 321437 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259785 Total APNIC prefixes after maximum aggregation: 77434 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 251088 Unique aggregates announced from the APNIC address blocks: 104370 APNIC Region origin ASes present in the Internet Routing Table: 14613 APNIC Prefixes per ASN: 17.18 APNIC Region origin ASes announcing only one prefix: 4437 APNIC Region transit ASes present in the Internet Routing Table: 1964 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: 10159 Number of APNIC addresses announced to Internet: 748695552 Equivalent to 44 /8s, 160 /16s and 48 /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: 288889 Total ARIN prefixes after maximum aggregation: 131083 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290723 Unique aggregates announced from the ARIN address blocks: 139695 ARIN Region origin ASes present in the Internet Routing Table: 19192 ARIN Prefixes per ASN: 15.15 ARIN Region origin ASes announcing only one prefix: 7024 ARIN Region transit ASes present in the Internet Routing Table: 1924 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: 5224 Number of ARIN addresses announced to Internet: 1349504256 Equivalent to 80 /8s, 111 /16s and 205 /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: 274766 Total RIPE prefixes after maximum aggregation: 134880 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273514 Unique aggregates announced from the RIPE address blocks: 175788 RIPE Region origin ASes present in the Internet Routing Table: 28867 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12035 RIPE Region transit ASes present in the Internet Routing Table: 3979 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: 12471 Number of RIPE addresses announced to Internet: 731111424 Equivalent to 43 /8s, 147 /16s and 224 /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: 123650 Total LACNIC prefixes after maximum aggregation: 29772 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 120143 Unique aggregates announced from the LACNIC address blocks: 48927 LACNIC Region origin ASes present in the Internet Routing Table: 11270 LACNIC Prefixes per ASN: 10.66 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: 9220 Number of LACNIC addresses announced to Internet: 171153920 Equivalent to 10 /8s, 51 /16s and 154 /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: 35284 Total AfriNIC prefixes after maximum aggregation: 6639 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 47625 Unique aggregates announced from the AfriNIC address blocks: 13674 AfriNIC Region origin ASes present in the Internet Routing Table: 1919 AfriNIC Prefixes per ASN: 24.82 AfriNIC Region origin ASes announcing only one prefix: 687 AfriNIC Region transit ASes present in the Internet Routing Table: 375 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: 104929536 Equivalent to 6 /8s, 65 /16s and 25 /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 11370 8761 111 CHINAMOBILE-CN China Mobile Communication 7545 6154 846 652 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4435 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4359 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 3282 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2895 857 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2196 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 13544 40950 5204 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 174 3599 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 2969 1245 2211 AKAMAI-AS, US 36352 2837 231 857 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 7674 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3921 3395 123 AKAMAI-ASN1, NL 9009 3905 358 2107 M247, RO 12389 3112 2304 890 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 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 1422 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 12220 3256 576 UNINET, MX 10620 3459 475 1066 Telmex Colombia S.A., CO 13999 2537 537 353 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 1062 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1051 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 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 568 82 3 KENET-AS, KE 15399 546 57 60 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 13544 40950 5204 AMAZON-02, US 8151 12220 3256 576 UNINET, MX 9808 11370 8761 111 CHINAMOBILE-CN China Mobile Communication 12479 7674 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 4435 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4359 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3921 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 12220 11644 UNINET, MX 9808 11370 11259 CHINAMOBILE-CN China Mobile Communications Grou 12479 7674 7526 UNI2-AS, ES 7545 6154 5502 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4359 4333 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4435 4125 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3921 3798 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 /12:299 /13:581 /14:1200 /15:2128 /16:13796 /17:8190 /18:13440 /19:24415 /20:43849 /21:51473 /22:111710 /23:102253 /24:610041 /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 6595 7674 UNI2-AS, ES 8151 6433 12220 UNINET, MX 11492 3577 4781 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 2335 13544 AMAZON-02, US 30036 2256 2597 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2163 3459 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 2:1482 3:815 4:10 5:4867 6:162 7:6 8:1564 9:1 11:172 12:1346 13:442 14:2528 15:363 16:285 17:379 18:919 20:551 21:4 22:188 23:7580 24:2808 25:2 27:2769 29:19 31:3286 32:35 33:1 34:83 35:254 36:3161 37:4610 38:9404 39:906 40:192 41:4276 42:1892 43:2652 44:377 45:18631 46:5094 47:318 49:1925 50:1882 51:593 52:1555 54:323 55:1095 56:11 57:269 58:2202 59:1295 60:1171 61:2831 62:2899 63:1786 64:5485 65:2172 66:4624 67:3066 68:1116 69:3847 70:1067 71:622 72:2857 74:2778 75:1506 76:606 77:2742 78:1862 79:1718 80:2204 81:2056 82:3170 83:1508 84:1862 85:3440 86:1083 87:2121 88:1306 89:4418 90:775 91:8390 92:2729 93:2937 94:4025 95:4359 96:1432 97:311 98:983 99:682 100:72 101:1421 102:3879 103:32752 104:5158 105:765 106:970 107:2652 108:1244 109:4099 110:2248 111:3281 112:2129 113:1857 114:1994 115:2159 116:2082 117:2540 118:2913 119:1920 120:2076 121:1376 122:2785 123:2202 124:1633 125:2912 126:91 128:1576 129:947 130:1284 131:2043 132:772 133:451 134:1541 135:349 136:1348 137:1118 138:2821 139:1586 140:1618 141:1506 142:1914 143:1907 144:1177 145:547 146:2175 147:2113 148:2710 149:2927 150:1280 151:2090 152:2073 153:523 154:7309 155:1755 156:2849 157:1923 158:1329 159:2493 160:3597 161:1851 162:3862 163:2211 164:1859 165:2018 166:1499 167:1981 168:3960 169:785 170:5130 171:1007 172:4450 173:3341 174:919 175:1323 176:3709 177:4706 178:3761 179:2316 180:2750 181:4072 182:3458 183:2220 184:2064 185:21410 186:5164 187:4578 188:4266 189:4289 190:9565 191:1489 192:11301 193:9429 194:7798 195:5530 196:3308 197:3258 198:6057 199:8538 200:8070 201:6381 202:10280 203:10661 204:4557 205:3596 206:4443 207:3464 208:4264 209:5112 210:4565 211:2536 212:4560 213:3747 214:1015 215:48 216:6750 217:3186 218:1354 219:395 220:2081 221:1146 222:724 223:2495 End of report