Can you reuse a sim card with another phone number?

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Connector

I transferred my phone number to the new smartphone with new sim card. The old phone still has its sim card in it. Can we get another phone number and reactivate the old phone with the old sim card?

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Community Power User
Community Power User

No. A SIM card can be used only for one account / number. Once you transfer your account to the new SIM, the old one is no longer usable for a different number. You can purchase a fresh SIM for a small fee and set up a new account on it so you can continue to use the old phone. If you are leaving the Telus Family (Telus, Koodo or Public Mobile) or planning to use your old phone while travelling internationally, you may wish to have it unlocked.


SIM Card info

NFtoBC
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Community Power User
Community Power User

SIM cards expire after I believe it's 45 days of not being used. If you have a phone with a SIM card that was recently taken off an account, it should be possible to register it on a new one in theory. If not, new SIM cards are fairly cheap.


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CPU Alum
CPU Alum

Some phones use different sim card sizes..... a warning about using adapters to swap the SIM card back and forth between phones.  If the sim card falls out of the adapter during installation/removal.... the pins will snag on adapter.  Resulting in very expensive repairs.  I refuse to use adapters.

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Good Samaritan

They can only be re-used on the same line they were on before within that 45 days.