ID Mobile
eSIMThree-powered UK MVNO — £6 PAYG eSIM, keep alive with one event per 90 days
Best for: Budget users wanting Three-network coverage who can keep up a 90-day keep-alive cadence (stricter than giffgaff/VOXI's 180 days).
Overview
iD Mobile is a London-based MVNO (founded 2014) running on Three's network, known for flexible, value plans. Its £6 pay-as-you-go eSIM bundles unlimited calls and texts with 1GB of data; the SIM expires after 90 days of inactivity (per the official FAQ), and the T&C adds automatic disconnection after 4 months with no chargeable service, top-up or bundle purchase.
iD Mobile is the low-cost way onto Three's UK network (the network now merged with Vodafone UK, though integration is ongoing): £6 pay-as-you-go buys unlimited UK calls and texts plus 1GB — usable as a keep-alive base with light real usage.
Keep-alive bar: the official FAQ says the SIM expires after 90 days of inactivity, and the T&C adds automatic disconnection after 4 months with no chargeable service, top-up or bundle purchase — stricter than the 180-day networks (giffgaff/VOXI), not more relaxed. Monthly plans and PAYG both exist; eSIM is selectable at checkout.
Trade-offs common to budget MVNOs apply: traffic priority sits below Three's own subscribers, and the source review groups iD with the budget-MVNO tier — fine for a cheap UK number, not the first pick for mainland-China roaming reliability.
Popular plans
| Plan | Data from | Validity | Price |
|---|---|---|---|
| PAYG eSIM | 1GB | 90 days per activity (T&C: auto-disconnect after 4 months without chargeable events) | £6 |
PAYG terms per iD Mobile official FAQ/T&C (2026-09 re-verify): 90-day inactivity expiry; 4-month no-chargeable-event disconnection.
Pros
- Simple keep-alive: one event per 90 days
- £6 with unlimited calls/texts and 1GB included
- Three-network coverage incl. 5G
Things to note
- MVNO priority below Three's own customers
- Budget tier — not first pick for China-roaming reliability
- 1GB PAYG data is UK-centric
Key features
- £6 PAYG: unlimited calls + texts + 1GB
- One top-up or usage per 6 months keeps the number
- Runs on Three's 4G/5G network
- Monthly and PAYG plans, eSIM at checkout