Three plans & features
Runs on Three
Main network
Checked Jul 2026
Price rises
Yes
EU roaming
Some plans
Roaming data
12GB
5G
✓
eSIM
✓
Unlimited data
Unlimited
The essentials
| Price rises | Yes Yes — rises each April by data band: £1.80 up to 4GB, £1.90 from 4–100GB, £2.30 at 100GB+. |
|---|---|
| Data rollover | No No data rollover — unused data is lost at the end of the month. |
| Full-speed data | Some caps 50, 100Mbps or Uncapped as per plan terms |
| 5G | ✓ |
| eSIM | ✓ |
| Tube coverage | ✓ You get Tube coverage through Three’s network. TfL station WiFi has been superseded by 4G/5G mobile coverage in tunnels and stations, rolled out by all four networks and growing across the lines — just use your phone and it connects automatically. |
| Inclusive international calls | No International calls are charged per minute or via a paid add-on — not included in the plan. |
| Unlimited data | Unlimited Genuinely unlimited data — no monthly fair-use cap (speed may be deprioritised at busy times; see Full-speed data). |
| EU roaming | Some plans £2 in EU per 24hr, other bundles available |
| Roaming data | 12GB You can use up to 12GB of your allowance in Go Roam (EU) destinations. |
Technical details
| Roaming countries | ? |
|---|---|
| Tethering / hotspot | ? |
| 5G Standalone | ✗ Not available — Three's network doesn't support standalone 5G yet |
| WiFi calling | ✓ |
| Roaming beyond the EU | £5/24hr in ATW, £7/24hr in… |
| 4G calling (VoLTE) | ✓ |
| RCS messaging | ✓ |
| RCS encryption | ✓ |
| Conference calling | ✓ |
| Missed call alerts | Some Only available when roaming off the host network |
| Visual voicemail | ✗ |
| HD Voice | ✓ |
| Carrier IMS | ✓ |
| Carrier voicemail | ✓ |
| Inclusive MMS | ✗ |
| IPv6 | ✓ IPv4/IPv6 dual stack |
| Roaming agreements | ✓ Main networks create the direct agreements which are then shared to MVNOs |
| 5G roaming | ✓ |
| 4G calling abroad | ✓ |
Three FAQ
What network does Three use?
Three is a main UK network — it owns and runs its own masts and coverage.
Can I use Three abroad in the EU?
Three includes EU roaming on some plans. £2 in EU per 24hr, other bundles available
Does Three have 5G?
Yes — Three includes 5G.
Does Three support eSIM?
Yes — Three supports eSIM.
Does Three raise prices mid-contract?
Three does not raise prices mid-contract. Yes — rises each April by data band: £1.80 up to 4GB, £1.90 from 4–100GB, £2.30 at 100GB+.
Other SIMs on the Three network
Same masts, same coverage — different prices and features.
Feature and price data is checked by Scrimpr against Three's own site and public documentation. Networks change plans often — always confirm details on the provider's site before buying. Some links are affiliate links (marked *), which support Scrimpr at no cost to you.
