https://community.48.ie/t5/Phones/Can-a-48-sim-work-in-locked-Three-phone/m-p/55754#M3665 No. You need an unlocked phone on 48.<BR />A phone locked to Three will not work on 48 even though 48 is a subsidiary of Three.<BR /><BR />Hope this helps. Sat, 20 Mar 2021 19:03:06 GMT dalyer 2021-03-20T19:03:06Z https://community.48.ie/t5/Phones/Can-a-48-sim-work-in-locked-Three-phone/m-p/55753#M3664 <P>As it's the same company?</P> Sat, 20 Mar 2021 11:53:30 GMT https://community.48.ie/t5/Phones/Can-a-48-sim-work-in-locked-Three-phone/m-p/55753#M3664 LouiseK6901 2021-03-20T11:53:30Z https://community.48.ie/t5/Phones/Can-a-48-sim-work-in-locked-Three-phone/m-p/55754#M3665 No. You need an unlocked phone on 48.<BR />A phone locked to Three will not work on 48 even though 48 is a subsidiary of Three.<BR /><BR />Hope this helps. Sat, 20 Mar 2021 19:03:06 GMT https://community.48.ie/t5/Phones/Can-a-48-sim-work-in-locked-Three-phone/m-p/55754#M3665 dalyer 2021-03-20T19:03:06Z