IPv4 R&E Routing Table Report 23:05 GMT Sat 10 May, 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: 978374 Prefixes after maximum aggregation (per Origin AS): 377737 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479109 Number of IPv4 prefixes with a valid ROA: 541477 Number of IPv4 prefixes with an invalid ROA: 1032 Number of IPv4 prefixes with no ROA: 435865 Total ASes present in the Internet Routing Table: 76692 Prefixes per ASN: 12.76 Origin-only ASes present in the Internet Routing Table: 65780 Origin ASes announcing only one prefix: 26951 Transit ASes present in the Internet Routing Table: 10912 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 978 Number of instances of unregistered ASNs: 983 Number of 32-bit ASNs allocated by the RIRs: 46388 Number of 32-bit ASNs visible in the Routing Table: 38156 Prefixes from 32-bit ASNs in the Routing Table: 201562 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 463 Number of addresses announced to Internet: 3109450752 Equivalent to 185 /8s, 86 /16s and 116 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 320431 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256864 Total APNIC prefixes after maximum aggregation: 76976 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248118 Unique aggregates announced from the APNIC address blocks: 103161 APNIC Region origin ASes present in the Internet Routing Table: 14561 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4450 APNIC Region transit ASes present in the Internet Routing Table: 1961 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10100 Number of APNIC addresses announced to Internet: 748468480 Equivalent to 44 /8s, 156 /16s and 185 /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: 288176 Total ARIN prefixes after maximum aggregation: 130121 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289402 Unique aggregates announced from the ARIN address blocks: 138604 ARIN Region origin ASes present in the Internet Routing Table: 19201 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7037 ARIN Region transit ASes present in the Internet Routing Table: 1918 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: 5187 Number of ARIN addresses announced to Internet: 1353064448 Equivalent to 80 /8s, 166 /16s and 32 /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: 273228 Total RIPE prefixes after maximum aggregation: 133844 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271079 Unique aggregates announced from the RIPE address blocks: 174262 RIPE Region origin ASes present in the Internet Routing Table: 28904 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12067 RIPE Region transit ASes present in the Internet Routing Table: 3975 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12415 Number of RIPE addresses announced to Internet: 730942976 Equivalent to 43 /8s, 145 /16s and 78 /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: 123628 Total LACNIC prefixes after maximum aggregation: 29401 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120046 Unique aggregates announced from the LACNIC address blocks: 48831 LACNIC Region origin ASes present in the Internet Routing Table: 11224 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2699 LACNIC Region transit ASes present in the Internet Routing Table: 2497 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9178 Number of LACNIC addresses announced to Internet: 171734016 Equivalent to 10 /8s, 60 /16s and 116 /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: 35500 Total AfriNIC prefixes after maximum aggregation: 6782 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 49266 Unique aggregates announced from the AfriNIC address blocks: 13867 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.81 AfriNIC Region origin ASes announcing only one prefix: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1276 Number of AfriNIC addresses announced to Internet: 105019136 Equivalent to 6 /8s, 66 /16s and 119 /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 10796 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6161 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4373 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4369 534 302 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2867 852 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2188 11523 648 KIXS-AS-KR Korea Telecom, KR 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 13308 40835 4807 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3472 8749 893 COGENT-174, US 22773 3348 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3164 3852 416 GOOGLE-CLOUD-PLATFORM, US 16625 3025 1266 2222 AKAMAI-AS, US 36352 2776 227 851 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 7695 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3951 3395 123 AKAMAI-ASN1, NL 9009 3791 327 1986 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2142 151 1577 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 8551 1432 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 12073 3247 582 UNINET, MX 10620 3505 481 1018 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1207 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1184 371 22 Telefonica del Peru S.A.A., PE 22884 1055 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 374 163 Axtel, S.A.B. de C.V., MX 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1573 102 39 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1036 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 549 82 3 KENET-AS, KE 15399 531 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 13308 40835 4807 AMAZON-02, US 8151 12073 3247 582 UNINET, MX 9808 10796 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7695 1714 148 UNI2-AS, ES 7545 6161 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 18403 4373 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4369 534 302 BBIL-AP BHARTI Airtel Ltd., IN 20940 3951 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 12073 11491 UNINET, MX 9808 10796 10700 CHINAMOBILE-CN China Mobile Communications Grou 12479 7695 7547 UNI2-AS, ES 7545 6161 5507 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4373 4348 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4369 4067 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3951 3828 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 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 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 /9:16 /10:41 /11:93 /12:300 /13:579 /14:1213 /15:2143 /16:13943 /17:8212 /18:13629 /19:24465 /20:43584 /21:51440 /22:111551 /23:101283 /24:605866 /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 6616 7695 UNI2-AS, ES 8151 6269 12073 UNINET, MX 11492 3533 4726 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2313 13308 AMAZON-02, US 30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2191 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) ---------------------------------------------- 1:2339 2:1503 3:705 4:11 5:4667 6:162 7:6 8:1585 9:1 11:172 12:1365 13:383 14:2516 15:353 16:285 17:371 18:920 20:518 21:4 22:188 23:7493 24:2748 25:2 27:2743 29:19 31:3244 32:37 33:1 34:83 35:205 36:2757 37:4632 38:9141 39:909 40:171 41:4221 42:1982 43:2569 44:375 45:18544 46:5037 47:294 49:1930 50:1888 51:591 52:1554 54:304 55:1094 56:11 57:255 58:2208 59:1301 60:1164 61:2812 62:2915 63:1806 64:5458 65:2172 66:4628 67:3057 68:1122 69:3826 70:1085 71:630 72:2847 74:2768 75:1607 76:615 77:2734 78:1868 79:1761 80:2199 81:2045 82:3143 83:1429 84:1846 85:3437 86:1050 87:2149 88:1281 89:4361 90:774 91:8338 92:2714 93:2888 94:4024 95:4320 96:1418 97:312 98:980 99:677 100:72 101:1407 102:3922 103:32195 104:4989 105:769 106:1033 107:2622 108:1211 109:4082 110:2235 111:3360 112:2058 113:1791 114:1972 115:2165 116:2045 117:2614 118:2881 119:1947 120:1890 121:1367 122:2749 123:2168 124:1610 125:2849 126:91 128:1566 129:950 130:1285 131:1946 132:775 133:451 134:1529 135:331 136:1305 137:1115 138:2875 139:1634 140:1576 141:1504 142:1899 143:1712 144:1105 145:503 146:2153 147:2092 148:2611 149:2852 150:1249 151:1851 152:2079 153:497 154:8118 155:1688 156:3377 157:1891 158:1303 159:2441 160:3559 161:1880 162:3723 163:2130 164:1693 165:2198 166:1473 167:1903 168:4029 169:786 170:5080 171:1007 172:4407 173:3264 174:908 175:1298 176:3672 177:4691 178:3619 179:2287 180:2612 181:4065 182:3423 183:2087 184:2053 185:21539 186:5112 187:4452 188:4225 189:4240 190:9611 191:1471 192:11211 193:9472 194:7760 195:5511 196:3288 197:3723 198:6069 199:8486 200:8076 201:6380 202:10228 203:10533 204:4515 205:3585 206:4457 207:3448 208:4253 209:5170 210:4569 211:2542 212:4519 213:3693 214:1030 215:48 216:6705 217:3122 218:1341 219:378 220:2085 221:1078 222:717 223:2363 End of report