SIM Only Plans in Basildon
SIM only plans in Basildon from £5/month on Three's 5G — data-only, unlimited and multi-network options.
Silux Mobile is a SIM only provider serving Basildon and all of Essex. Every SIM runs on Three's 5G/4G network with no contract, no credit check and free next-day delivery.
Why Basildon Chooses Silux Mobile
Delivered to Basildon
Free next-day Royal Mail delivery anywhere in the UK including Basildon and Essex.
Three 5G in Basildon
Our SIMs use Three's 5G/4G network with strong coverage across Basildon 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
SIM Only Plans — Delivered to Basildon
On Three 5G. No contracts.
Calls + Data
Unlimited calls
£8/mo
- 30GB data
- Unlimited calls & texts
- 4G/5G
- No contract
Unlimited
Unlimited
£18/mo
- Unlimited data
- Unlimited calls & texts
- 5G
- Go Roam 71+ countries
Three 5G Coverage in Basildon
Three's 5G/4G network covers Basildon and Essex with strong indoor and outdoor signal — over 99% UK population coverage.
Check Your Basildon PostcodeSIM Only in Basildon — FAQs
What is the cheapest SIM in Basildon?
Silux Mobile offers some of the cheapest SIMs available in Basildon — from £5/month on Three's 5G network, with no contract and free next-day delivery to Essex.
Does Three have good coverage in Basildon?
Yes. Three's 4G and 5G network covers Basildon and the surrounding Essex area with strong indoor and outdoor signal. Check your exact postcode at siluxmobile.co.uk/network-coverage.
Can I get a SIM delivered to Basildon?
Yes. Silux Mobile delivers to all Basildon 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 Basildon is the price you keep.
Do you run a credit check in Basildon?
No. There are no credit checks on our SIM contracts, so anyone in Basildon can join regardless of credit history.
Are prices in Basildon inclusive of VAT?
Yes. No hidden fees — every price shown to customers in Basildon is the price you pay, incl. VAT. No setup fees and no exit fees.