iD SIM Only Deals
iD Mobile uses Three's network and stands out from the crowd thanks to data rollover, while also offering good value 5G SIM Only plans and free roaming.
1 month contract
unlimited minutes
unlimited texts
10GB
5G data
£6.00
a month
24 month contract
unlimited minutes
unlimited texts
8GB
5G data
£6.00
a month
12 month contract
unlimited minutes
unlimited texts
6GB
5G data
£6.00
a month
1 month contract
unlimited minutes
unlimited texts
40GB
5G data
£7.00
a month
1 month contract
unlimited minutes
unlimited texts
30GB
5G data
£7.00
a month
24 month contract
unlimited minutes
unlimited texts
25GB
5G data
£7.00
a month
12 month contract
unlimited minutes
unlimited texts
20GB
5G data
£7.00
a month
1 month contract
unlimited minutes
unlimited texts
60GB
5G data
£8.00
a month
iD Mobile has a perk that you won’t find on many other networks – namely data rollover, which means that if you don’t use all your data one month, the remainder will roll over to the next month, giving you a second chance to use it, and this feature comes as standard on all iD Mobile’s SIM Only plans.
Beyond that, all iD Mobile SIM Only plans come with 5G as standard, as well as unlimited minutes and texts, and while data allowances vary, you can get up to unlimited data – in which case you won’t even need data rollover.
iD Mobile’s SIM Only plans also offer free roaming abroad in 50 destinations, as well as letting you use 4G Calling, Wi-Fi Calling, and allowing you to tether, so you can use your mobile data to get other devices online.
iD Mobile gives you the choice of a 30-day, 12-month, or 24-month SIM Only plan, so there are lots of options, and its plans are competitively priced as well.
Yes, iD Mobile is a good network, for a number of reasons. For one thing, iD Mobile uses Three’s infrastructure and signal, meaning that it has coverage in all the same places. At the time of writing, Three has over 99% UK population coverage with 4G, and over 60% outdoor coverage with 5G, which means its coverage is up there with the best in the UK for both technologies, and iD Mobile’s coverage is the same.
iD Mobile should also offer similar speeds to Three, and that’s good news too, because an Opensignal report from September 2024 found that Three’s average 5G download speed was higher than EE’s, Vodafone’s, or O2’s, at 208.9Mbps. Its median 5G download speed was also found to be the highest in a 2024 RootMetrics report, and most other recent reports have similarly put Three in the lead.
So Three is the UK’s fastest 5G network, which essentially means that iD Mobile is as well.
And iD Mobile seems well liked by customers too, as an Ofcom report from 2023 found that just 4% of customers had a reason to complain about the network, which is well below the industry average of 12%.
Yes, all iD Mobile’s SIM Only plans let you roam abroad in 50 destinations at no extra cost. These destinations cover the EU, the EEA, and beyond.
You can use as many minutes and texts as you want while in these destinations, and you can also use your data allowance, up to a fair usage limit of 30GB.
Yes, applying for one of iD Mobile’s SIM Only plans will include a credit check, but there are some networks where you can avoid credit checks. For this, check out who offers SIM Only deals with no credit check.
Yes, you can keep your number when switching to iD Mobile, and it’s a straightforward process. First, text the word ‘PAC’ to 65075 from the number you want to keep, and you’ll be sent a PAC (Porting Authorisation Code) in reply.
Next, place an order for an iD Mobile SIM Only plan, and you’ll be able to give iD Mobile your PAC code at the checkout. Once they have that, they’ll arrange for your old number to be transferred.
If you already have an iD Mobile SIM card and number then – assuming your old mobile account is still active – you can still transfer your number by heading to iD Mobile’s number transfer page and entering your PAC code there.
Yes, iD Mobile’s plans come with up to unlimited data, and you can get unlimited data whether you pick a 30-day, 12-month, or 24-month plan.
It’s truly unlimited too in the UK, with no fair usage policy, though there is a 30GB fair usage limit when roaming.