UK use cases: VPN checks, geo-restriction, and GDPR
This tool displays the geolocation, ASN (Autonomous System Number), ISP, and timezone for any IPv4 or IPv6 address, or detects your own public IP automatically.
In the UK, IP address lookup has several practical uses. Verifying that your VPN is masking your real location (e.g., confirming a US exit node before accessing US-only streaming content) is one of the most common. The reverse applies for BBC iPlayer, which geo-restricts content to UK IP ranges, if the tool shows a non-UK location for your connection, iPlayer will block access.
Under UK GDPR (post-Brexit ICO guidance), IP addresses are classified as personal data when they can be linked to an identifiable individual. Logging and storing visitor IP addresses on your server requires a lawful basis under UK GDPR. This has direct implications for Apache/Nginx access logs, analytics tools, and ad targeting.
What the results show
| Field | What it means | Accuracy |
|---|---|---|
| IP address | Your public IP or the one you entered | Exact |
| Country / Region / City | Approximate geographic location | Country: high / City: +/-50 km |
| ISP / Organisation | The internet provider or host owning the block | High (RIPE/ARIN data) |
| ASN | Routing block identifier for the network operator | Exact |
| Timezone | Estimated from geolocation, not the device | Regional |
IPv4 vs IPv6 in the UK
UK ISPs have varying IPv6 adoption rates. BT and Sky have rolled out IPv6 to a significant share of residential users; Virgin Media lags behind. If your public IP starts with 2 (e.g., 2a02:... or 2001:...), you are on IPv6. An IPv6 address reveals your ISP's ASN just as an IPv4 does, but city-level accuracy is often lower.
ASN lookup for hosting research
The ASN field identifies the network operator. UK hosting providers each have distinct ASN numbers: for example, dedicated servers at Fasthosts or Claranet carry recognisable ASN prefixes. If you see an unexpected ASN for your server IP, it may indicate a CDN or cloud proxy sitting in front of your origin. Use this alongside the redirect checker to trace the full path from DNS to origin.