IP address ranges in United Kingdom
United Kingdom holds 158,472 IPv4 segments in the IP99 geolocation database, covering 109,797,749 addresses. In the 4 days to 12 September 2026 we newly captured 78,531 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 | 4,042 | 37.5% |
| Datacenter | 3,420 | 31.7% |
| Gateway / NAT egress | 1,283 | 11.9% |
| Mobile network | 951 | 8.8% |
| Education network | 532 | 4.9% |
| Government | 405 | 3.8% |
| Organisation | 101 | 0.9% |
| CDN node | 41 | 0.4% |
Regions
| Region | Segments | Share |
|---|---|---|
| England | 147,344 | 93.0% |
| Scotland | 6,233 | 3.9% |
| Wales | 3,516 | 2.2% |
| Northern Ireland | 1,376 | 0.9% |
| Dhekelia | 3 | 0.0% |
Cities
| City | Segments | Share |
|---|---|---|
| London | 38,811 | 24.5% |
| Manchester | 3,080 | 1.9% |
| Birmingham | 1,923 | 1.2% |
| Leeds | 1,671 | 1.1% |
| Sheffield | 1,522 | 1.0% |
| Reading | 1,440 | 0.9% |
| Bristol | 1,349 | 0.9% |
| Liverpool | 1,289 | 0.8% |
| Salford | 1,236 | 0.8% |
| Edinburgh | 1,055 | 0.7% |
| City of London | 1,051 | 0.7% |
| Nottingham | 983 | 0.6% |
| Newcastle upon Tyne | 839 | 0.5% |
| Leicester | 833 | 0.5% |
| Glasgow | 792 | 0.5% |
| Stockport | 788 | 0.5% |
| Coventry | 783 | 0.5% |
| Birkenhead | 707 | 0.4% |
| Cardiff | 707 | 0.4% |
| Derby | 692 | 0.4% |
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 | 38,713 |
| AS5089 | 22,728 |
| AS5607 | 19,782 |
| AS13285 | 11,478 |
| AS5378 | 7,889 |
| AS6871 | 5,945 |
| AS786 | 2,165 |
| AS3257 | 2,065 |
| AS8075 | 1,541 |
| AS8426 | 1,509 |
Look up a single address
Free, no signup: curl https://ip99.com/v1/ip/8.8.8.8 — see the API documentation.