Autonomous System
AS15404 COLT Technology Services Group Limited
ISPActiveUnited KingdomRIPE
AS15404 (UNSPECIFIED) is an ISP network operated by COLT Technology Services Group Limited in United Kingdom, registered with RIPE. It has 145 IPv4 prefixes with 145,920 addresses and 9 IPv6 prefixes, which makes it the 1,633rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses145,920in 145 prefixes
IPv6 prefixes9≈ 8.4 × 10²⁸ addresses
Size rank#1,633of 82,200 active ASNs
Details
OrganizationCOLT Technology Services Group Limited
AS nameUNSPECIFIED
Websitecolt.net
Country United Kingdom (GB)
Network typeISP
RegistryRIPE
Abuse contactabuse@colt.net
Registered1970-01-01
Last updated2019-11-05
IPv4 prefixes
145 prefixes · 145,920 addresses| Network | Addresses | First – last address |
|---|---|---|
| 161.17.0.0/16 | 65,536 | 161.17.0.0 – 161.17.255.255 |
| 62.85.160.0/19 | 8,192 | 62.85.160.0 – 62.85.191.255 |
| 194.59.96.0/19 | 8,192 | 194.59.96.0 – 194.59.127.255 |
| 5.11.96.0/20 | 4,096 | 5.11.96.0 – 5.11.111.255 |
| 148.188.0.0/20 | 4,096 | 148.188.0.0 – 148.188.15.255 |
| 148.188.192.0/20 | 4,096 | 148.188.192.0 – 148.188.207.255 |
| 193.29.144.0/20 | 4,096 | 193.29.144.0 – 193.29.159.255 |
| 148.188.232.0/21 | 2,048 | 148.188.232.0 – 148.188.239.255 |
| 178.249.200.0/21 | 2,048 | 178.249.200.0 – 178.249.207.255 |
| 194.99.120.0/21 | 2,048 | 194.99.120.0 – 194.99.127.255 |
| 148.188.224.0/22 | 1,024 | 148.188.224.0 – 148.188.227.255 |
| 185.212.156.0/22 | 1,024 | 185.212.156.0 – 185.212.159.255 |
| 193.8.64.0/22 | 1,024 | 193.8.64.0 – 193.8.67.255 |
| 193.29.152.0/22 | 1,024 | 193.29.152.0 – 193.29.155.255 |
| 194.15.244.0/22 | 1,024 | 194.15.244.0 – 194.15.247.255 |
| 77.74.158.0/23 | 512 | 77.74.158.0 – 77.74.159.255 |
| 129.35.20.0/23 | 512 | 129.35.20.0 – 129.35.21.255 |
| 185.60.76.0/23 | 512 | 185.60.76.0 – 185.60.77.255 |
| 185.154.148.0/23 | 512 | 185.154.148.0 – 185.154.149.255 |
| 193.29.146.0/23 | 512 | 193.29.146.0 – 193.29.147.255 |
| 193.29.150.0/23 | 512 | 193.29.150.0 – 193.29.151.255 |
| 193.29.156.0/23 | 512 | 193.29.156.0 – 193.29.157.255 |
| 193.176.112.0/23 | 512 | 193.176.112.0 – 193.176.113.255 |
| 193.176.114.0/23 | 512 | 193.176.114.0 – 193.176.115.255 |
| 193.177.180.0/23 | 512 | 193.177.180.0 – 193.177.181.255 |
161.17.0.0/16 62.85.160.0/19 194.59.96.0/19 5.11.96.0/20 148.188.0.0/20 148.188.192.0/20 193.29.144.0/20 148.188.232.0/21 178.249.200.0/21 194.99.120.0/21 148.188.224.0/22 185.212.156.0/22 193.8.64.0/22 193.29.152.0/22 194.15.244.0/22 77.74.158.0/23 129.35.20.0/23 185.60.76.0/23 185.154.148.0/23 193.29.146.0/23 193.29.150.0/23 193.29.156.0/23 193.176.112.0/23 193.176.114.0/23 193.177.180.0/23
The 25 largest of 145. The API and the database have all of them.
IPv6 prefixes
9 prefixes- 2a07:cb81::/32
- 2a10:8802::/36
- 2001:678:274::/48
- 2001:67c:67c::/48
- 2001:67c:2b20::/48
- 2001:67c:2ea0::/48
- 2a02:11f8:70::/48
- 2a0a:d6c0:145::/48
- 2a11:4d40::/48
2a07:cb81::/32 2a10:8802::/36 2001:678:274::/48 2001:67c:67c::/48 2001:67c:2b20::/48 2001:67c:2ea0::/48 2a02:11f8:70::/48 2a0a:d6c0:145::/48 2a11:4d40::/48
Query AS15404 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS15404&key=YOUR_API_KEY"Any address in its prefixes resolves to AS15404, with or without a key:
curl "https://api.ipapi.is/?q=161.17.0.1"