I'm teaching myself some small electronics projects and looking for a network in the UK that will allow me to top up by e.g. £5 and leave it for as long as possible - likely 6 months, before having to top it up again to keep it active.

It will be monitoring and sending data back in tiny packets every month a few things.

I can remember Vodafone used to do it, but not sure if they do anymore.

Also, I might need a couple of them in different locations, so if any networks provide a SIM for free, or as close to (e.g. £1) that will stay active.

Are there any? EE don't. I don't think. They deactivated my SIM before I even got to top it up.. 😁

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[–] 6 points 1 week ago (4 children)

I believe Giffgaff pay as you go is what you're after. They will send you reminders of you use no data, calls or texts for 6 months or so, but if sending some data then you're golden.

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  • [–] [S] 2 points 1 week ago (3 children)

    Thanks, going to grab a Giffgaff SIM from Sainsbury's (if I can) and an RWG SIM too.

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  • [+] 2 points 1 week ago (3 children)
  • [–] [S] 1 point 1 week ago (2 children)

    Thanks. Saw your comment..I got a Giffgaff, not having luck getting any of the others yet.

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  • [–] 2 points 1 week ago (1 child)

    Good. I wasn't sure that I was really addressing your request very well. I keep the SIM inactive most of the year. I'm not sure what options they have: if you don't but a data package, you may still get some data at a higher rate.

    But the regular monthly or "but for 1 month" options both have a good range of prices.

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  • [–] 5 points 1 week ago* (last edited 1 week ago) (1 child)

    Try checking RWG Mobile , ScanCom or Mozillion

    I bought a SIM card from RWG a while back that was a 1 time payment for 2 years contract for 1GB data per month. It was so cheap I never actually got round to using it.

    I believe the other 2 do similar plans.

    EDIT -

    If you have no luck try searching IOT SIM / Internet Of Things SIM / Prepaid Sim

    I can see some offers for 500mb valid for 5 years for £5

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  • [–] 5 points 1 week ago

    Not sure if this works, but I have an esim from airalo (but there are a lot of other countries) that I top up once a year.

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