Autonomous System
AS15412 Flag Telecom UK Limited
ISPActiveUnited KingdomRIPE
AS15412 (FLAG-AS) is an ISP network operated by Flag Telecom UK Limited in United Kingdom, registered with RIPE. It has 20 IPv4 prefixes with 34,304 addresses and 1 IPv6 prefix, which makes it the 5,127th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses34,304in 20 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#5,127of 82,200 active ASNs
Details
OrganizationFlag Telecom UK Limited
AS nameFLAG-AS
Websiteglobalcloudxchange.com
Country United Kingdom (GB)
Network typeISP
RegistryRIPE
Abuse contactAbuseSecurityGroup@GlobalCloudXchange.com
Registered2002-09-18
Last updated2025-12-17
IPv4 prefixes
20 prefixes · 34,304 addresses| Network | Addresses | First – last address |
|---|---|---|
| 62.216.128.0/19 | 8,192 | 62.216.128.0 – 62.216.159.255 |
| 80.81.64.0/19 | 8,192 | 80.81.64.0 – 80.81.95.255 |
| 80.77.0.0/20 | 4,096 | 80.77.0.0 – 80.77.15.255 |
| 203.79.32.0/20 | 4,096 | 203.79.32.0 – 203.79.47.255 |
| 43.248.216.0/22 | 1,024 | 43.248.216.0 – 43.248.219.255 |
| 45.125.188.0/22 | 1,024 | 45.125.188.0 – 45.125.191.255 |
| 85.95.24.0/22 | 1,024 | 85.95.24.0 – 85.95.27.255 |
| 103.5.160.0/22 | 1,024 | 103.5.160.0 – 103.5.163.255 |
| 103.15.116.0/22 | 1,024 | 103.15.116.0 – 103.15.119.255 |
| 103.103.152.0/22 | 1,024 | 103.103.152.0 – 103.103.155.255 |
| 103.225.192.0/22 | 1,024 | 103.225.192.0 – 103.225.195.255 |
| 103.144.202.0/23 | 512 | 103.144.202.0 – 103.144.203.255 |
| 103.8.84.0/24 | 256 | 103.8.84.0 – 103.8.84.255 |
| 103.8.85.0/24 | 256 | 103.8.85.0 – 103.8.85.255 |
| 103.8.86.0/24 | 256 | 103.8.86.0 – 103.8.86.255 |
| 103.8.87.0/24 | 256 | 103.8.87.0 – 103.8.87.255 |
| 103.11.237.0/24 | 256 | 103.11.237.0 – 103.11.237.255 |
| 203.79.35.0/24 | 256 | 203.79.35.0 – 203.79.35.255 |
| 203.79.37.0/24 | 256 | 203.79.37.0 – 203.79.37.255 |
| 203.79.39.0/24 | 256 | 203.79.39.0 – 203.79.39.255 |
62.216.128.0/19 80.81.64.0/19 80.77.0.0/20 203.79.32.0/20 43.248.216.0/22 45.125.188.0/22 85.95.24.0/22 103.5.160.0/22 103.15.116.0/22 103.103.152.0/22 103.225.192.0/22 103.144.202.0/23 103.8.84.0/24 103.8.85.0/24 103.8.86.0/24 103.8.87.0/24 103.11.237.0/24 203.79.35.0/24 203.79.37.0/24 203.79.39.0/24
IPv6 prefixes
1 prefix- 2001:1a00::/32
2001:1a00::/32
Query AS15412 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=AS15412&key=YOUR_API_KEY"Any address in its prefixes resolves to AS15412, with or without a key:
curl "https://api.ipapi.is/?q=62.216.128.1"