Free SIM Cards
There is currently a high demand for free mobile phone SIM cards. With the intention of saving money, many people are moving away from contract phones and heading back to "pay as you go" - a method that allows greater control of mobile phone spending. Many of the SIM offers below (from Orange, T-Mobile, Vodafone, etc.) include superb benefits when you "top up" your credit, including free texts, voice calls, and also bonus credit. If you are the owner of an "unlocked" phone, which allows the use of multiple networks, you will be able to swap networks as and when you please. The SIMs are also ideal for passing on to friends and family. Remember: these SIM cards are completely free to obtain, but you may be required to "top up" in order to gain maximum benefit.
Free 3 Mobile SIM Card
Here's an easy freebie to obtain. Simply complete the short online form to request one of two free "pay as you go" SIM cards from the 3 mobile network. Transfer your number over to the network and they will give you "free stuff" with every top-up you make, including free text alerts when your credit is getting low. (UK Only)
Free O2 SIM Cards
Here you can request up to 3 free SIMs from O2. The SIM cards are completely free, although to access some of the benefits, you will need to top-up your airtime balance. (UK Only)
Free Tesco Mobile SIM Cards
Here's a fantastic free SIM card offer from Tesco Mobile. Simply complete the (very) short form and they'll send you either one or two "pay as you go" SIM cards. A range of great benefits are offered at Tesco, including the ability to double or triple your credit if you "top up" by various amounts. There is a limit of 4 SIMs per household. (UK Only)
Free T-Mobile SIM Card
Here is a new free SIM card offer from T-Mobile. To activate the SIM, simply make a top-up by £5. A range of additional offers and benefits can be added to the deal depending on how regularly (and how much) you decide to "top up". (UK Only)
Free Orange Mobile SIM Cards
Here's a fantastic new free SIM card offer from Orange. Just complete the short online form to request either one or two SIM cards, each offering unlimited texts when you 300 texts and free Internet access when you top-up by £10. You may request up to 4 free SIMs. (UK Only)
Free Vodafone SIM Cards
Here you can request a free "pay as you talk" SIM card pack from Vodafone. Simply complete the online form and the SIM will be dispatched within the week. Vodafone offer a range of benefits to pay as you talk customers, including extras such as "text unlimited" when you top up by a certain amount. (UK Only)

