IP address ranges in United Kingdom
United Kingdom holds 159,428 IPv4 segments in the IP99 geolocation database, covering 109,551,875 addresses. In the 7 days to 27 October 2026 we newly captured 139,119 proxy-type addresses there.
Network usage types
The ratio of residential broadband to datacenter address space is the most direct indicator of what kind of proxy risk a region carries: a high datacenter share means datacenter proxies are more likely; a high residential share means home-broadband proxies and dial-up pools are.
| Usage type | Segments | Share |
|---|---|---|
| Residential broadband | 4,082 | 37.5% |
| Datacenter | 3,445 | 31.7% |
| Gateway / NAT egress | 1,310 | 12.1% |
| Mobile network | 948 | 8.7% |
| Education network | 536 | 4.9% |
| Government | 407 | 3.7% |
| Organisation | 103 | 0.9% |
| CDN node | 40 | 0.4% |
Regions
| Region | Segments | Share |
|---|---|---|
| England | 149,276 | 93.6% |
| Scotland | 5,751 | 3.6% |
| Wales | 3,215 | 2.0% |
| Northern Ireland | 1,177 | 0.7% |
| Dhekelia | 9 | 0.0% |
Cities
| City | Segments | Share |
|---|---|---|
| London | 38,191 | 24.0% |
| Manchester | 3,025 | 1.9% |
| Birmingham | 2,000 | 1.3% |
| Reading | 1,880 | 1.2% |
| Ipswich | 1,736 | 1.1% |
| Leeds | 1,528 | 1.0% |
| Sheffield | 1,319 | 0.8% |
| Bristol | 1,316 | 0.8% |
| Liverpool | 1,312 | 0.8% |
| Nottingham | 1,129 | 0.7% |
| City of London | 1,091 | 0.7% |
| Salford | 983 | 0.6% |
| Coventry | 899 | 0.6% |
| Glasgow | 854 | 0.5% |
| Edinburgh | 853 | 0.5% |
| Newcastle upon Tyne | 830 | 0.5% |
| Leicester | 807 | 0.5% |
| Birkenhead | 764 | 0.5% |
| Cardiff | 735 | 0.5% |
| Stockport | 718 | 0.5% |
Autonomous systems
An ASN identifies the operator of a network. Addresses under one ASN usually share risk characteristics, which is why risk controls often act on whole ASNs rather than single addresses. Operator names are not published here — the machine-readable identity is the ASN.
| ASN | Segments |
|---|---|
| AS2856 | 39,287 |
| AS5089 | 22,239 |
| AS5607 | 19,912 |
| AS13285 | 11,457 |
| AS5378 | 7,931 |
| AS6871 | 6,162 |
| AS786 | 2,058 |
| AS3257 | 2,009 |
| AS8075 | 1,562 |
| AS1273 | 1,244 |
Look up a single address
Free, no signup: curl https://ip99.com/v1/ip/8.8.8.8 — see the API documentation.
Go deeper
What is my IP address? · How IP location works, and how accurate it is · What an IP address lookup can and cannot tell you