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Truly unlimited data SIM.

UK 4G, LTE & 5G Mobile Data.

Using Three's UK ultrafast network, Net4 Connect's true unlimited data SIM gives blazing speeds with no limits or restrictions.

No fuss, No credit checks, No contract
fast 5g network

Net4 Connect Unlimited Data SIM

Simple, High Use Mobile Data

Net4 Connect has simplified mobile data. No credit checks or complex agreements, just order your SIM and pay for your desired term - 1 month or 12 months. We then give you access to unlimited 4G data and unlimited 5G data for just £25 per month or £270 per year. Receive 1 month of free data with the annual SIM.

If you don’t need it anymore, just stop paying, and that’s it! No notice, no fees, no ties.

UK’s Fastest Network

Net4 Connect uses the UK's fastest mobile network. Our SIM runs on the Three network, which has the most spectrum in the UK, which means more speed!

And don’t just take our word for it. Three won the Ookla® Speedtest award for the UK’s Fastest 5G Network in 2021, and Ookla knows all about internet speeds.

fast 5g network
5g network coverage

UK Coverage

Our SIM provides coverage to 99% of the UK population. With continuous investment in network rollout and infrastructure, you can be sure that our SIM provides the best possible coverage.

Check now to see if you’re covered.

Business Grade

Just because it's cheap doesn’t mean it’s not designed for business. We do not throttle or limit data rates. With the highest throughput network and our enterprise-grade network infrastructure, you can be sure you will stay online.

We also provide business-grade support. Our team of experts are on hand should you need us. We won’t leave you hanging on for help with a professional support system.

Advanced Capability

We have made getting business-grade unlimited data easy. However, we have far more capability to offer should you need it.

We have a range of equally competitive tariffs if you need less data. Unlimited voice and SMS options, private APN, Layer 2/3 connectivity, VoLTE, VoWiFi, online billing and management, and full in bundle roaming tariffs.

We specialise in IoT and data connectivity, with smart tariffs that automatically switch as you use them.

Get in touch for more info!

5g advanced capabilities

Monthly Or Annual Subscriptions

net4 sim

Monthly Unlimited Data SIM Card

A 1 month unlimited data SIM card for businesses:

  • No contract, just pay for a month
  • True unlimited data
  • No credit checks
  • 99% UK wide coverage – 4G, LTE and 5G access
  • UK’s fastest network (Three)
  • Volume discounts available (contact us)
  • 12 month unlimited data SIM available with 11 months for the price of 12

£25.00 ex. VAT

net4 sim

Annual Unlimited Data SIM Card

A 12 month unlimited data SIM card for businesses:

  • 11 months for the price of 12, when compared to our monthly SIM
  • True unlimited data
  • No contract, just pay for a year
  • No credit checks
  • 99% UK wide coverage – 4G, LTE and 5G access
  • UK’s fastest network (Three)
  • Volume discounts available (contact us)

£270.00 ex. VAT

Browse our full range of Unlimited Data SIM cards

Why Choose the Net4 Connect Unlimited Data SIM?

True Unlimited Data

Truly unlimited 4G, LTE and 5G data with no data limits or restrictions.

Wide UK Coverage

Utilising the Three network, gives you 99% UK coverage across 4G, LTE and 5G

Superfast Data

Three is the UK's fastest network, and that's what the Net4 Connect unlimited data SIM operates on.

No Contract

There's no contract, just choose a monthly or annual subscription. Cancel at any time. No credit or background checks.

Volume Discounts

If you're looking for more than 5 SIMs, contact us for volume discounts.

UK Registered Company: 11371379
115 Eastbourne Mews, London W2 6LQ

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