iD Mobile

What to know about shopping at iD Mobile

iD Mobile is a UK mobile virtual network operator wholly owned by Currys plc, operating on the Three network since May 2015 — sitting in the same MVNO bracket as Smarty (also on Three), 1pMobile (EE), Asda Mobile (Vodafone) and Lebara (Vodafone), but with a high-street footprint that none of the others match through 360+ Currys and Carphone Warehouse stores nationwide. Subscriber base has grown past 2 million by 2024, putting it in the upper tier of UK MVNOs by scale rather than the budget challenger bracket.

The product line splits across two routes — 24-month pay-monthly contracts bundling a handset with a SIM, and SIM-only plans on flexible 1-month, 12-month and 24-month terms. The SIM-only data ladder runs from entry tiers through unlimited, with 5G included on every plan at no extra cost. Coverage reaches 99.8% of the UK population on Three's underlying infrastructure, and 5G download speeds average above 200 Mbps in tested areas. Data rollover is built in — unused allowance from one month carries into the next, but it expires after that single rollover rather than compounding.

The standout operational features versus other MVNOs are bill capping (set a hard monthly spending limit so out-of-bundle charges cannot surprise you), Wi-Fi calling across all plans, and inclusive EU roaming across 50 destinations with a 30GB fair-use cap. Mid-contract price rises are now a flat £1.80 a month each April from 2027 onwards — more predictable than the RPI+3.9% formula at BT, Vodafone and O2, though no longer the no-rise guarantee that some rivals like Ecotalk and Mozillion still advertise. Customer service runs through the iD Mobile community forum, in-app chatbot, automated phone service, and account portal rather than queue-based phone agents.

Discount windows on MVNO SIMs follow the Black Friday and Cyber Monday weekend (the densest period for percentage-off promos and free-month offers), the September Back-to-School and student-switcher season, the January New Year contract-switcher window, and welcome offers via the affiliate network for first-time customers. Practical buying tip: bill capping is the feature most worth activating at sign-up — set the cap at £0 to block out-of-bundle premium rate calls and data overages outright, which is the cleanest way to make a SIM-only plan behave like a true flat monthly cost. Cross-check the headline tariff against Smarty (the other Three-network MVNO) before committing, as the two share the same underlying coverage and the cheaper of the two is often the right pick when neither bundles the extras you actually use.

— MoneySaverCodes Team