https://community.48.ie/t5/Memberships/How-to-block-old-SIM-after-receiving-replacement/m-p/70082#M8109 <P>Just activate the replacement SIM and the old one will stop working and you can dispose of it.&nbsp;</P> <UL> <LI><A href="https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487" target="_blank">https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487</A></LI> </UL> <P>If you need to contact 48 support about this then see the links in my signature below.</P> Wed, 27 Aug 2025 15:55:53 GMT dalyer 2025-08-27T15:55:53Z https://community.48.ie/t5/Memberships/How-to-block-old-SIM-after-receiving-replacement/m-p/70081#M8108 <P>i was told i had a problem with my old SIM, so i got a replacement SIM, but never blocked my old SIM because i still had use to it,</P> <P>Question: How do i block my old SIM to activate my new SIM that has BEEN DELIVERED??????</P> <P>anyone known</P> <P>&nbsp;</P> <P>thanks</P> Wed, 27 Aug 2025 15:56:25 GMT https://community.48.ie/t5/Memberships/How-to-block-old-SIM-after-receiving-replacement/m-p/70081#M8108 Charliem0350 2025-08-27T15:56:25Z https://community.48.ie/t5/Memberships/How-to-block-old-SIM-after-receiving-replacement/m-p/70082#M8109 <P>Just activate the replacement SIM and the old one will stop working and you can dispose of it.&nbsp;</P> <UL> <LI><A href="https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487" target="_blank">https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487</A></LI> </UL> <P>If you need to contact 48 support about this then see the links in my signature below.</P> Wed, 27 Aug 2025 15:55:53 GMT https://community.48.ie/t5/Memberships/How-to-block-old-SIM-after-receiving-replacement/m-p/70082#M8109 dalyer 2025-08-27T15:55:53Z