Changed my phone number but it didn't change on my SIM card.

[yiatioxi-ok]

Changed my phone number but it didn't change on my SIM card. Do I now need to purchase a new Sim card?

[Dunkman · Accepted solution]

@yiatioxi-ok

Generally, if you change number or port in from another provider, you do not need a new SIM card.  

However, if you closed on account or ported out and want to start a new account, the old SIM card will not work and you will need to buy another SIM card. 

What are some more details of your issue?