IPv4 R&E Routing Table Report 23:05 GMT Tue 08 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: 974447 Prefixes after maximum aggregation (per Origin AS): 374819 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476589 Number of IPv4 prefixes with a valid ROA: 536983 Number of IPv4 prefixes with an invalid ROA: 702 Number of IPv4 prefixes with no ROA: 436762 Total ASes present in the Internet Routing Table: 76610 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65741 Origin ASes announcing only one prefix: 26897 Transit ASes present in the Internet Routing Table: 10869 Transit-only ASes present in the Internet Routing Table: 534 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1034 Number of instances of unregistered ASNs: 1038 Number of 32-bit ASNs allocated by the RIRs: 46152 Number of 32-bit ASNs visible in the Routing Table: 38019 Prefixes from 32-bit ASNs in the Routing Table: 200148 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: 453 Number of addresses announced to Internet: 3106531584 Equivalent to 185 /8s, 41 /16s and 233 /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: 320052 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255101 Total APNIC prefixes after maximum aggregation: 76470 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246854 Unique aggregates announced from the APNIC address blocks: 102705 APNIC Region origin ASes present in the Internet Routing Table: 14524 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4439 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10053 Number of APNIC addresses announced to Internet: 748549632 Equivalent to 44 /8s, 157 /16s and 246 /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: 287489 Total ARIN prefixes after maximum aggregation: 128566 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288578 Unique aggregates announced from the ARIN address blocks: 137300 ARIN Region origin ASes present in the Internet Routing Table: 19203 ARIN Prefixes per ASN: 15.03 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1905 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: 5170 Number of ARIN addresses announced to Internet: 1349350400 Equivalent to 80 /8s, 109 /16s and 116 /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: 272528 Total RIPE prefixes after maximum aggregation: 133173 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270411 Unique aggregates announced from the RIPE address blocks: 173688 RIPE Region origin ASes present in the Internet Routing Table: 28862 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 3963 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12357 Number of RIPE addresses announced to Internet: 731588608 Equivalent to 43 /8s, 155 /16s and 40 /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: 123192 Total LACNIC prefixes after maximum aggregation: 29239 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119850 Unique aggregates announced from the LACNIC address blocks: 48853 LACNIC Region origin ASes present in the Internet Routing Table: 11219 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2459 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: 9168 Number of LACNIC addresses announced to Internet: 171715584 Equivalent to 10 /8s, 60 /16s and 44 /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: 35103 Total AfriNIC prefixes after maximum aggregation: 6728 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 48301 Unique aggregates announced from the AfriNIC address blocks: 13655 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.35 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 376 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: 1271 Number of AfriNIC addresses announced to Internet: 105091584 Equivalent to 6 /8s, 67 /16s and 146 /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 10307 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4258 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4248 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3264 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2849 849 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 434 197 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 12991 39642 3927 AMAZON-02, US 11492 4687 311 584 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 174 3627 8765 949 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3401 3036 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2984 1250 2210 AKAMAI-AS, US 396982 2949 3649 466 GOOGLE-CLOUD-PLATFORM, US 36352 2627 216 804 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 7719 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3903 3395 125 AKAMAI-ASN1, NL 9009 3763 325 1959 M247, RO 12389 3073 2303 888 ROSTELECOM-AS, RU 34984 2364 360 581 TELLCOM-AS, TR 212238 2081 148 1532 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 62240 1488 98 748 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 11930 3244 585 UNINET, MX 10620 3536 487 974 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 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1176 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1048 67 377 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 1644 555 28 RAYA-AS, EG 24863 1641 389 16 LINKdotNET-AS, EG 29571 1567 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1248 553 98 MT-MPLS, MA 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36935 917 523 46 Vodafone-, EG 6713 561 1861 35 IAM-AS, MA 36914 539 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 12991 39642 3927 AMAZON-02, US 8151 11930 3244 585 UNINET, MX 9808 10307 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7719 1714 145 UNI2-AS, ES 7545 6214 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4687 311 584 CABLEONE, US 9498 4258 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4248 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 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 11930 11345 UNINET, MX 9808 10307 10218 CHINAMOBILE-CN China Mobile Communications Grou 12479 7719 7574 UNI2-AS, ES 7545 6214 5557 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4248 4223 FPT-AS-AP FPT Telecom Company, VN 11492 4687 4103 CABLEONE, US 9498 4258 3982 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 20940 3903 3778 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 23.137.20.0/24 Origin: 34437 COVERTHART-AS-34437, US 23.137.20.0/24 Transit: 174 COGENT-174, 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 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 /12:301 /13:580 /14:1215 /15:2140 /16:13889 /17:8225 /18:13648 /19:24452 /20:43566 /21:51527 /22:111649 /23:101094 /24:601995 /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 6641 7719 UNI2-AS, ES 8151 6133 11930 UNINET, MX 11492 3531 4687 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3401 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2330 12991 AMAZON-02, US 30036 2206 2546 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2198 3536 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 2:1517 3:610 4:10 5:4608 6:162 7:6 8:1548 9:1 11:172 12:1372 13:350 14:2507 15:353 16:280 17:363 18:921 20:478 21:4 22:188 23:7318 24:2827 25:2 27:2692 29:19 31:3224 32:37 34:83 35:204 36:2398 37:4571 38:8947 39:899 40:154 41:4203 42:1897 43:2549 44:365 45:18405 46:4934 47:289 49:1923 50:1901 51:590 52:1550 54:300 55:879 56:11 57:248 58:2200 59:1247 60:1171 61:2816 62:2905 63:1829 64:5494 65:2176 66:4619 67:3060 68:1105 69:3975 70:1067 71:614 72:2813 74:2791 75:1607 76:610 77:2704 78:1863 79:1732 80:2191 81:2016 82:3044 83:1416 84:1834 85:3391 86:1043 87:2153 88:1281 89:4328 90:777 91:8311 92:2791 93:2877 94:4054 95:4290 96:1437 97:312 98:998 99:641 100:70 101:1403 102:3729 103:32146 104:4792 105:753 106:989 107:2611 108:1193 109:4097 110:2231 111:3354 112:2042 113:1807 114:1965 115:2173 116:2032 117:2737 118:2891 119:1945 120:1870 121:1363 122:2745 123:2163 124:1609 125:2856 126:91 128:1558 129:955 130:1262 131:1880 132:774 133:451 134:1502 135:332 136:1307 137:1098 138:2876 139:1610 140:1555 141:1480 142:1837 143:1644 144:1072 145:514 146:2152 147:2100 148:2646 149:2896 150:1247 151:1742 152:2097 153:503 154:7899 155:1630 156:3187 157:1890 158:1265 159:2424 160:3534 161:1887 162:3715 163:1976 164:1697 165:2201 166:1441 167:1872 168:4039 169:781 170:5069 171:1003 172:4458 173:3219 174:909 175:1284 176:3679 177:4681 178:3782 179:2313 180:2574 181:4056 182:3370 183:2037 184:2138 185:21494 186:5076 187:4434 188:4194 189:4169 190:9621 191:1469 192:11165 193:9413 194:7773 195:5501 196:3272 197:3782 198:6046 199:8431 200:8048 201:6270 202:10318 203:10518 204:4523 205:3632 206:4571 207:3441 208:4192 209:5151 210:4496 211:2533 212:4496 213:3753 214:1051 215:48 216:6592 217:3089 218:1329 219:377 220:2085 221:1066 222:713 223:2315 End of report