Orange:
http://finance.groups.yahoo.com/grou...e_001177840557
http://shop.orange.co.uk/shop/drivensimoffer [four sims]
O2:
http://finance.groups.yahoo.com/grou...2_001177960970
http://freesim.o2.co.uk/
T-Mobile:
http://www.t-mobile.co.uk/shop/free-...u-go-sim-cards [two sims]
Tesco Mobile:
http://www.tescomobile-freesim.co.uk [two sims]
Hutchison 3G:
http://threestore.three.co.uk/payg/SimOnly.aspx
https://www.three.co.uk/Pay_As_You_Go/Free_SIM
Vodafone:
https://www.v-store.co.uk/index.cfm?...ckout.freesims
Virgin Mobile: [Open Feb-Apr and Nov-Dec]
http://www.easyanswer.co.uk/freevirginsim
http://www.virginmobilefreesim.com
NOTE: The 3 tariff advertised is available by dialling 444, otherwise you will be on the Flat12 plan which offers calls at 12p per minute to all networks and free voicemail.
NOTE: O2 free sims have no Incomming calls until you top up and make a chargeable call.
NOTE: Vodafone Stop the Clock is no longer available to new customers on Pay As You Talk, there is now new Freedom packs available, Free Weekends cannot be used with Freedom packs or Text Unlimited. The Vodafone Pay As You Talk tariff is the 'Simply price plan' Smartstep,All Calls,Original,Next Step,Flat Rate and Smartplus priceplans are no longer available to new customers.
NOTE: Orange Pay As You go sim cards need activating before you are given a mobile number, call 0800-079-0006 to register your IMEI and Sim card number, you will also be given the opportunity to register your personal details such as your name and address and if you do, you will recieve a £1 starter credit.