UK IP Lookup | Geolocate UK IP Addresses
Need to find the location of a UK IP address? Our free check my IP address lookup tool lets you quickly locate UK IP addresses, mapping them to specific post towns, counties, and broadband networks. This is especially useful for managing regional compliance under UK GDPR, optimizing web traffic, or preventing security breaches.
Interactive United Kingdom IP Location Finder
Search for any IP address or domain to get instantly geolocated results.
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Your Detected IP Address
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United Kingdom Internet Overview
The UK's internet relies heavily on fiber broadband networks managed by Openreach and emerging alternative networks (AltNets). Geolocation mapping across England, Scotland, Wales, and Northern Ireland is very precise, often identifying the exact exchange point. However, mobile data routing can show users hundreds of miles away from their actual physical location.
Does Your IP Address Change?
Most home broadband and mobile connections in United Kingdom get a dynamic public IP address, so it can change when your router reconnects or your provider reassigns it. Many mobile networks also put customers behind carrier-grade NAT, where one public address is shared. Static addresses are usually a paid business option.
United Kingdom Network Facts
IPv6 Adoption
See live data
Regional Internet Registry
RIPE NCC
IPv6 adoption changes month to month, so we don't quote a fixed number. See Google's per-country IPv6 statistics for the current figure. IP addresses in United Kingdom are allocated by RIPE NCC.
Major ISPs in United Kingdom
- 1BT Broadband
- 2Sky Broadband
- 3Virgin Media
- 4TalkTalk
- 5EE
Top Hosting Providers
- 1UKFast
- 2Claranet
- 3Heart Internet
- 4Hostinger UK
- 51&1 IONOS
United Kingdom IP Address Space in Numbers
As of 25 September 2026, the regional internet registries list 138.9 million IPv4 addresses (138,851,648) as delegated to 3,033 organisations in the United Kingdom: 3.77% of all delegated IPv4 space, the 4th-largest share of any country. Organisations there also hold 2,050 IPv6 blocks and 3,137 autonomous system numbers (ASNs).
IPv4 addresses registered
138.9 million
Share of world IPv4
3.77% (#4)
IPv6 blocks
2,050
AS numbers (ASNs)
3,137
Networks with the most IPv4 addresses in the United Kingdom
The five networks with the most IPv4 addresses in the United Kingdom hold 41.1% of the 134.1 million addresses that geolocate there, out of 3,336 networks in total.
- AS8075 · Microsoft Corporation14.7%
- AS2856 · British Telecommunications PLC10.3%
- AS5089 · Virgin Media Limited6.3%
- AS786 · Jisc Services Limited5.1%
- AS5607 · Sky UK Limited4.7%
Check any network's details with our ASN lookup.
Where those addresses geolocate
Share of the United Kingdom's geolocated IPv4 addresses by city.
- London, England62.2%
- Manchester, England1.8%
- Martlesham, England1.4%
- Hatfield, England1.1%
- Leeds, England0.7%
How to read these numbers
The registry figures count addresses delegated to organisations based in the United Kingdom. The network and city figures count the 134.1 millionIPv4 addresses that geolocate there, which is why the two totals differ. Large address blocks usually geolocate to the owner's headquarters or data centres, so a city's share reflects where networks are registered and hosted, not how many people are online there. Some big holders, such as government, university or corporate networks, are not consumer ISPs at all.
Registries, exchanges and privacy rules in the United Kingdom
- Country domain
- .uk is run by Nominet.
- IP address registry
- RIPE NCC allocates addresses in the United Kingdom.
- Main internet exchange points
- LINX (London Internet Exchange) and LONAP. Networks exchange traffic directly here instead of through distant transit providers.
- Privacy law
- UK GDPR and the Data Protection Act 2018. The regulator is the Information Commissioner’s Office (ICO). Online identifiers such as IP addresses can be personal data.
Sources: NRO combined RIR delegation statistics, file dated 25 September 2026; DB-IP IP to City Lite and IP to ASN Lite (2026-09) (CC BY 4.0). Network and city shares are IP Dekho's analysis of the DB-IP data (IPv4 only), updated monthly.
IPv6 Transition & Adoption
Next Generation Protocol Deployment
IPv6 is well established in the UK. Major ISPs like BT Broadband and Sky Broadband rolled out native dual-stack configurations early on. Traditional routers handle both protocols, which helps users transition. Read more in our article about static vs dynamic IP addresses. Some newer network providers are still working on transitioning their customer base away from IPv4.
How to Use the Location Finder
Simply paste the UK IP address into the lookup field above and click search. You will get instant access to network information, including the town or city, county, ISP name, ASN, and map coordinates. You can also view your own IP details by clicking the lookup button with an empty search field, or use our WHOIS lookup to trace ownership registries.
Submit IP/Domain
Type any valid IP or site domain in the input above.
Verify Details
Analyze ISP, geolocation state/city, coordinates and timezone records.
Audit Network
Utilize the returned metrics to troubleshoot latency or perform compliance checks.
Benefits of United Kingdom IP Lookup
- Verify user location to comply with UK GDPR and data safety guidelines while understanding understanding WHOIS records.
- Deliver localized content tailored for British English and local pricing, and understand how browser fingerprinting can track users without cookies.
- Check which services are exposed on a server you manage by scanning it with our port scanner.
- Measure connection latency to key exchange points like LINX in London.
Common Use Cases
Broadcasters like BBC iPlayer ensuring only users with a UK IP address can access media content.
Online shops showing prices in British Pounds (GBP) and applying the correct VAT rates.
Banks flagging logins from outside the UK to protect accounts from unauthorized access.
Digital marketers setting up ad campaigns targeted at specific UK counties or cities.
Frequently Asked Questions
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Integrate IP Geolocation Anywhere
Need to geolocate visitors at scale? We're building a developer API for IP geolocation, ISP, and network data. In the meantime, the lookup tool above is free to use.
