Do I need a New Sim Card to change my phone number every time?

[BF3]

Hi, 

I am just wondering if I change my phone number (that I am entitle to change 4 times every 30 days), do I need to get a new Sim Card for a new number?

Many Thanks for all your input. 

BF3

[mron12345]

Thank you nery much for your help.I don't know how my SIM card got comprimised.

[DennyCrane]

@Ferguson That is in no way relevant to the question.

@BF3 No, you don't need a new sim card if all you want to do is change your phone number.

[Ferguson]

Designed initially to access mobile phone networks, a SIM card authenticates the subscriber and ensures the user is accurately billed for used airtime. The SIM also stores your phone directories, messages, information on roaming across different networks, and many other value-added voice and data services. So ideally you do want to use the same SIM card in the new phone.

[Phil_Adelphus]

@BF3   No you don't need to change the sim card.