“second SIM card” service for a single number

SerhiiB1457 — Thu, 18 Dec 2025 11:11:01 GMT

Many mobile operators offer a “second SIM card” service for a single number. This is necessary when I have two mobile devices that I need to switch between. For example, in the morning I use my mobile phone, and in the evening I want to switch to a 4G modem without physically removing the SIM card. Of course, it is assumed that both devices are not turned on at the same time.

Re: “second SIM card” service for a single number

dalyer — Thu, 18 Dec 2025 13:55:33 GMT

I'm pretty sure that 48 don't support this and only allow a single SIM per account/number/membership plan.

If you need to confirm this with 48 support then see the links in my signature below.

> Many mobile operators offer a “second SIM card” service for a single number.

Are you sure about that? A quick check and also ChatGPT suggests that that's not the case with Irish mobile service providers unless it's via a physical SIM and eSIM for the same number? 48 don't offer eSIMs.

> Of course, it is assumed that both devices are not turned on at the same time.

What happens if they are?

topic “second SIM card” service for a single number in Memberships

“second SIM card” service for a single number

Re: “second SIM card” service for a single number