United Kingdom
United KingdomGB
PLMN ID · 23402
Technology
2G · 3G · 4G · 5G on this network
Record
Updated 2025-04-09
- Brand
- O2 UK
- Operator
- Telefónica Europe
- Country
- United Kingdom(GB)
- Region
- Europe
- Dialling code
- —
- Mobile Country Code
- All 57 networks on MCC 234
- Mobile Network Code
- PLMN ID
- What is a PLMN ID?
- TADIG code
- —
- Technologies
- 2G · 3G · 4G · 5G10 bands on file
- VoLTE (4G calling)
- UnknownTell us
- Wi-Fi calling
- UnknownTell us
- Video calling
- UnknownTell us
- VoNR (5G calling)
- UnknownTell us
- Status
- Live
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MVNOs
Add an MVNOMVNOs sell their own SIMs and plans but run on O2 UK's network rather than owning one.
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Cell towers
Last measured 2026-09-14
193
Cells
31
Location areas
373
Measurements
2025
First measured
Find a cell on this network
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Crowd-sourced cell measurements from OpenCelliD, licensed CC BY-SA 4.0 · as of 2026-09-27. Counts are cells people have measured, not an operator's own figures.
About O2 UK
O2 UK, also known as Telefónica UK Limited, is a major mobile network operator in the United Kingdom, providing services across England, Scotland, Wales, and Northern Ireland. Operating under Mobile Country Code (MCC) 234 and Mobile Network Code (MNC) 02, O2 boasts a significant share of the UK mobile market, competing with other key players like Vodafone, EE (formerly Everything Everywhere) and Three. O2 offers a comprehensive suite of mobile services, including 4G LTE and increasingly expansive 5G coverage. Historically, O2 has been recognised for its focus on customer experience, with initiatives like O2 Priority, offering exclusive benefits and early access to concert tickets. As part of Telefónica Europe, O2 UK benefits from a global network and resources that allow it compete effectively within the ever-evolving UK mobile telecommunications landscape. The network's influence extends beyond individual consumers, providing connectivity solutions for businesses and playing a pivotal role in the UK's digital infrastructure.
APN settings
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