United Kingdom
United KingdomGB
PLMN ID · 23410
MCC
Mobile Country Code
MNC
Mobile Network Code
PLMN
MCC + MNC
TADIG
GSMA roaming code
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
- TADIG directory
- Technologies
- 2G · 3G · 4G · 5G10 bands on file
- VoLTE (4G calling)
- LikelyNetwork publishes an IMS APNReport
- 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.
| Brand | Calling | APNs | |
|---|---|---|---|
| giffgaffO2 UK brand | VoLTElikely | 2 APNs | |
| TescoO2 UK brand | 3 APNs | ||
| Jump | 1 APN | ||
| TalkTalk | |||
| 1GLOBAL | |||
| Travelfy | 1 APN | ||
| Webbing | VoLTElikely | 4 APNs |
Regional Global SIM using O2 UK's numbering
Cell towers
Last measured 2026-09-17
37,365
Cells
876
Location areas
512,671
Measurements
2013
First measured
Find a cell on this network
> Enter a cell ID from this network, or press Example, to see where the cell is and how far it reaches.
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, operating under Telefónica Europe in the United Kingdom, is a major mobile network provider serving millions of customers. As represented by its Mobile Country Code (MCC) of 234, placing it within the UK, and Mobile Network Code (MNC) of 10, O2 distinguishes itself within the competitive British telecommunications landscape. Alongside rivals like Vodafone, EE, and Three, O2 offers a range of services including 4G and increasingly prevalent 5G connectivity, catering to both individual consumers and business clients throughout England, Scotland, Wales, and Northern Ireland. Its widespread coverage makes it a key player in keeping the UK connected. O2's history is rich, evolving from BT Cellnet to becoming a standalone O2 brand, ultimately acquired by Telefónica. Over the years, O2 has built a reputation for innovation and customer focus, often recognized for its customer service initiatives and strategic partnerships to enhance network reach. The network often compete on innovative services in particular around inclusive roaming and data schemes. The brand remains a firmly recognised entity in the UK market, with a large customer base throughout the country.
APN settings
Add an APN▸▾ 4 more APNs for specific SIMs on this network
Change history
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