IPv4 R&E Routing Table Report 23:05 GMT Thu 17 Apr, 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: 975292 Prefixes after maximum aggregation (per Origin AS): 375689 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478131 Number of IPv4 prefixes with a valid ROA: 537822 Number of IPv4 prefixes with an invalid ROA: 701 Number of IPv4 prefixes with no ROA: 436769 Total ASes present in the Internet Routing Table: 76680 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65783 Origin ASes announcing only one prefix: 26888 Transit ASes present in the Internet Routing Table: 10897 Transit-only ASes present in the Internet Routing Table: 532 Paths with bogon ASNs present in the IPv4 Routing Table: 22 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: 1054 Number of instances of unregistered ASNs: 1055 Number of 32-bit ASNs allocated by the RIRs: 46228 Number of 32-bit ASNs visible in the Routing Table: 38104 Prefixes from 32-bit ASNs in the Routing Table: 200561 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 436 Number of addresses announced to Internet: 3106450944 Equivalent to 185 /8s, 40 /16s and 174 /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: 319621 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255399 Total APNIC prefixes after maximum aggregation: 76531 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247099 Unique aggregates announced from the APNIC address blocks: 102885 APNIC Region origin ASes present in the Internet Routing Table: 14563 APNIC Prefixes per ASN: 16.97 APNIC Region origin ASes announcing only one prefix: 4436 APNIC Region transit ASes present in the Internet Routing Table: 1970 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: 10092 Number of APNIC addresses announced to Internet: 748408064 Equivalent to 44 /8s, 155 /16s and 205 /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: 287364 Total ARIN prefixes after maximum aggregation: 129046 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288318 Unique aggregates announced from the ARIN address blocks: 137849 ARIN Region origin ASes present in the Internet Routing Table: 19205 ARIN Prefixes per ASN: 15.01 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1910 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: 5181 Number of ARIN addresses announced to Internet: 1349271296 Equivalent to 80 /8s, 108 /16s and 63 /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: 272820 Total RIPE prefixes after maximum aggregation: 133343 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270829 Unique aggregates announced from the RIPE address blocks: 173857 RIPE Region origin ASes present in the Internet Routing Table: 28876 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12047 RIPE Region transit ASes present in the Internet Routing Table: 3971 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: 12379 Number of RIPE addresses announced to Internet: 731845120 Equivalent to 43 /8s, 159 /16s and 18 /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: 123304 Total LACNIC prefixes after maximum aggregation: 29377 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119910 Unique aggregates announced from the LACNIC address blocks: 48877 LACNIC Region origin ASes present in the Internet Routing Table: 11226 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2476 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: 9175 Number of LACNIC addresses announced to Internet: 171748352 Equivalent to 10 /8s, 60 /16s and 172 /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: 35351 Total AfriNIC prefixes after maximum aggregation: 6759 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 48700 Unique aggregates announced from the AfriNIC address blocks: 14289 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.47 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277 Number of AfriNIC addresses announced to Internet: 104962816 Equivalent to 6 /8s, 65 /16s and 155 /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 10347 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4273 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4268 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2176 11524 637 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 13187 39691 4115 AMAZON-02, US 11492 4694 311 587 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3546 8761 934 COGENT-174, US 22773 3398 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2993 1253 2213 AKAMAI-AS, US 396982 2957 3650 468 GOOGLE-CLOUD-PLATFORM, US 36352 2667 219 818 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 7703 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3927 3395 125 AKAMAI-ASN1, NL 9009 3770 325 1959 M247, RO 12389 3073 2303 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2098 148 1543 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1596 1852 14 TE-AS TE-AS, EG 62240 1444 95 746 CLOUVIDER Clouvider - Global ASN, GB 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 11956 3243 591 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2511 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1189 371 21 Telefonica del Peru S.A.A., PE 11664 1058 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 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 1733 607 31 RAYA-AS, EG 24863 1647 389 16 LINKdotNET-AS, EG 29571 1583 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 552 82 3 KENET-AS, 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 13187 39691 4115 AMAZON-02, US 8151 11956 3243 591 UNINET, MX 9808 10347 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7703 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4694 311 587 CABLEONE, US 18403 4273 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4268 530 276 BBIL-AP BHARTI Airtel Ltd., IN 20940 3927 3395 125 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 11956 11365 UNINET, MX 9808 10347 10258 CHINAMOBILE-CN China Mobile Communications Grou 12479 7703 7558 UNI2-AS, ES 7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4273 4248 FPT-AS-AP FPT Telecom Company, VN 11492 4694 4107 CABLEONE, US 9498 4268 3992 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3927 3802 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 /13:581 /14:1215 /15:2136 /16:13883 /17:8233 /18:13656 /19:24463 /20:43589 /21:51493 /22:111604 /23:101040 /24:602933 /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 6624 7703 UNI2-AS, ES 8151 6162 11956 UNINET, MX 11492 3531 4694 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2534 3398 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2350 13187 AMAZON-02, US 30036 2215 2555 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3522 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) ---------------------------------------------- 1:2346 2:1512 3:617 4:10 5:4619 6:163 7:6 8:1558 9:1 11:172 12:1370 13:353 14:2514 15:352 16:283 17:366 18:922 20:511 21:4 22:188 23:7406 24:2749 25:2 27:2698 29:19 31:3227 32:36 34:83 35:203 36:2397 37:4663 38:8893 39:905 40:166 41:4231 42:1914 43:2551 44:375 45:18513 46:4985 47:290 49:1920 50:1887 51:590 52:1553 54:299 55:1091 56:11 57:253 58:2205 59:1258 60:1171 61:2816 62:2904 63:1817 64:5475 65:2187 66:4589 67:3054 68:1113 69:3822 70:1062 71:613 72:2829 74:2776 75:1589 76:613 77:2742 78:1872 79:1749 80:2194 81:2032 82:3153 83:1426 84:1849 85:3404 86:1048 87:2145 88:1277 89:4305 90:782 91:8313 92:2785 93:2897 94:4060 95:4334 96:1388 97:313 98:997 99:642 100:72 101:1385 102:3757 103:32194 104:4777 105:757 106:985 107:2614 108:1196 109:4079 110:2233 111:3360 112:2048 113:1796 114:1967 115:2165 116:2031 117:2738 118:2893 119:1942 120:1872 121:1363 122:2745 123:2160 124:1608 125:2861 126:91 128:1546 129:952 130:1267 131:1910 132:779 133:451 134:1525 135:331 136:1302 137:1110 138:2873 139:1600 140:1574 141:1474 142:1902 143:1639 144:1079 145:514 146:2145 147:2111 148:2662 149:2922 150:1235 151:1754 152:2099 153:502 154:8027 155:1617 156:3187 157:1887 158:1285 159:2438 160:3566 161:1897 162:3738 163:2059 164:1694 165:2203 166:1443 167:1879 168:4044 169:780 170:4894 171:1002 172:4478 173:3228 174:903 175:1296 176:3697 177:4664 178:3738 179:2279 180:2578 181:4058 182:3365 183:2053 184:2081 185:21524 186:5063 187:4408 188:4199 189:4176 190:9619 191:1474 192:11214 193:9424 194:7765 195:5508 196:3289 197:3712 198:6052 199:8440 200:8069 201:6284 202:10333 203:10520 204:4518 205:3635 206:4577 207:3439 208:4185 209:5132 210:4512 211:2531 212:4514 213:3761 214:1032 215:48 216:6602 217:3101 218:1332 219:377 220:2086 221:1058 222:715 223:2323 End of report