topic Re: Changing to a new sim but want to keep my old number in Joining 48? https://community.48.ie/t5/Joining-48/Changing-to-a-new-sim-but-want-to-keep-my-old-number/m-p/71324#M4484 <P>If you're already with 48 and your number is with them then you probably need a replacement SIM rather than a new SIM.</P> <UL> <LI><A href="https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487" target="_blank" rel="noopener">https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487</A></LI> </UL> <P>You can't port a number already with 48 to a brand new 48 SIM.</P> <P>Seems strange that you're even trying this. Why?</P> <P>If you need to contact 48 support about this then see the links in my signature below.</P> Mon, 22 Dec 2025 15:14:22 GMT dalyer 2025-12-22T15:14:22Z Changing to a new sim but want to keep my old number https://community.48.ie/t5/Joining-48/Changing-to-a-new-sim-but-want-to-keep-my-old-number/m-p/71323#M4483 Hi, I already have a 48 number but I got a new 48 SIM.<BR />I want to keep my existing number and move it to my new SIM.<BR />I’m getting the error “MSISDN already exists”.<BR />Can you please do a SIM swap for me? Mon, 22 Dec 2025 14:28:34 GMT https://community.48.ie/t5/Joining-48/Changing-to-a-new-sim-but-want-to-keep-my-old-number/m-p/71323#M4483 NajmaP2557 2025-12-22T14:28:34Z Re: Changing to a new sim but want to keep my old number https://community.48.ie/t5/Joining-48/Changing-to-a-new-sim-but-want-to-keep-my-old-number/m-p/71324#M4484 <P>If you're already with 48 and your number is with them then you probably need a replacement SIM rather than a new SIM.</P> <UL> <LI><A href="https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487" target="_blank" rel="noopener">https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487</A></LI> </UL> <P>You can't port a number already with 48 to a brand new 48 SIM.</P> <P>Seems strange that you're even trying this. Why?</P> <P>If you need to contact 48 support about this then see the links in my signature below.</P> Mon, 22 Dec 2025 15:14:22 GMT https://community.48.ie/t5/Joining-48/Changing-to-a-new-sim-but-want-to-keep-my-old-number/m-p/71324#M4484 dalyer 2025-12-22T15:14:22Z