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 147 IPv4 prefixes with 146,432 addresses and 9 IPv6 prefixes, which makes it the 1,629th largest of 82,558 active autonomous systems by IPv4 space.
IPv4 addresses146,432in 147 prefixes
IPv6 prefixes9≈ 8.4 × 10²⁸ addresses
Size rank#1,629of 82,558 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
147 prefixes · 146,432 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 147. 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"