Data SIM Cards in Derry
Data-only SIM cards in Derry from £4/month on Three's 5G network. Ideal for tablets, dongles, MiFi and routers.
Silux Mobile delivers data SIMs to Derry and all of Londonderry by next-day Royal Mail. Pure data, no calls or texts to pay for — on Three's 5G/4G network with no contract.
Why Derry Chooses Silux Data SIMs
Delivered to Derry
Free next-day Royal Mail delivery anywhere in the UK including Derry and Londonderry.
Three 5G in Derry
Our SIMs use Three's 5G/4G network with strong coverage across Derry and surrounding areas.
From £5/Month
Cheaper than Lebara, Giffgaff and SMARTY — with 5G and Go Roam included at no extra cost.
No Contract
30-day rolling plans. Cancel anytime — no exit fees, no minimum term.
The Silux Mobile Promise
No price increases
Your price is locked — no price rises during your contract, ever
Free upgrades
Upgrade your plan or SIM for free, any time
No credit checks
No credit checks on our SIM contracts
No hidden fees
No setup fees, no exit fees — cancel any time
Data SIM Plans — Delivered to Derry
Data-only SIMs on Three 5G. No contracts.
Three 5G Data Coverage in Derry
Three's 5G/4G network covers Derry and Londonderry with strong signal for tablets, dongles and mobile routers. Over 99% UK population coverage.
Check Your Derry PostcodeData SIM Cards in Derry — FAQs
What is the cheapest data SIM in Derry?
Silux Mobile offers some of the cheapest data SIMs available in Derry — from £5/month on Three's 5G network, with no contract and free next-day delivery to Londonderry.
Does Three have good coverage in Derry?
Yes. Three's 4G and 5G network covers Derry and the surrounding Londonderry area with strong indoor and outdoor signal. Check your exact postcode at siluxmobile.co.uk/network-coverage.
Can I get a data SIM delivered to Derry?
Yes. Silux Mobile delivers to all Derry addresses via Royal Mail next-day delivery. Order before 3pm for next-day dispatch.
Will my price increase mid-contract?
No. Silux Mobile never raises your price mid-contract — no annual or inflation-linked rises. The price you sign up at in Derry is the price you keep.
Do you run a credit check in Derry?
No. There are no credit checks on our SIM contracts, so anyone in Derry can join regardless of credit history.
Are prices in Derry inclusive of VAT?
Yes. No hidden fees — every price shown to customers in Derry is the price you pay, incl. VAT. No setup fees and no exit fees.