SIM Only Plans in Dover
SIM only plans in Dover from £5/month on Three's 5G — data-only, unlimited and multi-network options.
Silux Mobile is a SIM only provider serving Dover and all of Kent. SIMs are available on Three, Vodafone, EE and O2, on a 30-day rolling plan or a 3 to 24-month contract, with no credit check and free Royal Mail Tracked 48 delivery.
Why Dover Chooses Silux Mobile
Delivered to Dover
Free Royal Mail Tracked 48 delivery (2–3 working days) anywhere in the UK including Dover and Kent.
Three 5G in Dover
Our SIMs use Three's 5G/4G network with strong coverage across Dover and surrounding areas.
From £5/Month
Cheaper than Lebara, Giffgaff and SMARTY — with 5G included. Roaming is an extra cost and varies by package.
Flexible Plans
Every plan starts from 1 month — SIM cards on 30-day rolling plans or 3 to 24-month contracts, and rolling monthly broadband.
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 hidden fees, no price increases
SIM Only Plans — Delivered to Dover
On Three 5G. 30-day rolling or 3 to 24-month contracts.
Calls + Data
Unlimited calls
£8/mo
- 30GB data
- Unlimited calls & texts
- 4G/5G
- 30-day or contract
Unlimited
Unlimited
£18/mo
- Unlimited data
- Unlimited calls & texts
- 5G
- Roaming extra — varies by package
Three 5G Coverage in Dover
Three's 5G/4G network covers Dover and Kent with strong indoor and outdoor signal — over 99% UK population coverage.
Check Your Dover PostcodeSIM Only in Dover — FAQs
What happens if I go over the fair usage policy in Dover?
It depends on the network. As of August 2026, Three is more flexible and lenient with its fair usage policy, and it is rare that we need to warn customers. Vodafone and O2 are much stricter: if you go over more than twice, you will be notified to monitor your usage.
What is the cheapest SIM in Dover?
Silux Mobile offers some of the cheapest SIMs available in Dover — from £5/month on Three, Vodafone, EE and O2, on a 30-day rolling plan or a 3 to 24-month contract, with free Royal Mail Tracked 48 delivery to Kent.
Does Three have good coverage in Dover?
Yes. Three's 4G and 5G network covers Dover and the surrounding Kent area with strong indoor and outdoor signal. Check your exact postcode at siluxmobile.co.uk/network-coverage.
Can I get a SIM delivered to Dover?
Yes. Silux Mobile delivers to all Dover addresses free by Royal Mail Tracked 48 (2–3 working days). Faster delivery can be chosen at checkout.
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 Dover is the price you keep.
Do you run a credit check in Dover?
No. There are no credit checks on our SIM contracts, so anyone in Dover can join regardless of credit history.
Are prices in Dover inclusive of VAT?
Yes. No hidden fees — every price shown to customers in Dover is the price you pay, incl. VAT. No setup fees and no price increases.