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UK business SIM-only 5+ lines Keep existing phones

Business SIM-only deals for UK teams with 5+ lines.

If your team is happy with its existing devices, a SIM-only agreement can keep the mobile requirement simple. Tell us your line count, usage, renewal timing and network preferences and we’ll compare suitable business options.

Get SIM-only quotes What to consider

A straightforward option when the phones are staying

SIM-only separates the mobile service from the handset purchase. That can make comparisons easier when your current devices still meet the needs of the business.

Keep existing devices
Avoid replacing phones simply because an airtime contract is due for renewal.
Multi-line requirements
Designed around businesses managing five or more connections.
Usage-led comparison
Data, roaming and network preferences can be considered before options are shortlisted.
Low-pressure process
Give us the facts once so unnecessary follow-up is kept to a minimum.
Specialist in 5+ business lines Keep your existing devices Major UK networks considered No multiple-provider sales calls

What matters when comparing business SIM-only

The headline monthly cost is only one part of the decision. A useful comparison should reflect how the team actually uses its mobiles.

Data + roaming
Consider realistic data usage, hotspot use and whether staff regularly work or travel outside the UK.
Coverage + network preference
Existing coverage experience and any preference to remain with or move away from a network should be part of the brief.
Renewal timing
The time left on your current agreement affects when it makes sense to obtain and act on new pricing.

Business SIM-only FAQs

What is a business SIM-only contract?

A business SIM-only contract provides the mobile service without supplying a new handset. It is a practical option when existing phones remain suitable and the requirement is primarily airtime, data and connectivity.

Can we keep our existing mobile numbers?

In most cases, yes. Existing business mobile numbers can normally be retained when moving to a new contract or network, subject to the normal porting process and your current account status.

Which networks can be considered?

B2B Mobiles can compare suitable business options across the major UK mobile networks based on your requirements and network preferences.

Is SIM-only only for small teams?

No. The relevant question is whether the devices still meet the business requirement. B2B Mobiles specialises in companies managing 5 or more mobile lines.

Ready to compare SIM-only options?

Use the existing quote builder and select that you only need SIMs. We’ll use the rest of your requirements to shape the comparison.

Build your quote →