Do I need a new SIM card to change my number?
If you desire to change your telephone number, one way to do it is to purchase a new SIM card. However, getting a new SIM card means that you also have to go through the hassle of moving your contacts and other information from the old card to the new one.
Is a phone number tied to a SIM card?
Your SIM card contains your phone number, and lets you make phone calls, send text messages, and more. SIM cards have evolved over the years and come in several sizes, including mini-, micro-, and nano-SIMs. Visit Insider's Tech Reference library for more stories.Apr 30, 2021
Can I keep my old number with a new SIM card?
Once you've given your PAC code to your new network, they'll begin porting the number from your old SIM to your new SIM. This means that your old number will move to your new SIM on your new network. Keep your old SIM in your old phone for the time being, so you can make and receive calls and texts.Jan 12, 2021
Why can't I use my old SIM card in my new phone?
The SIM card is basically what identifies your phone on the network. If you change phones all you have to do is take the SIM card out of your old phone and put it in your new one. Think of it like your phone number is registered to the SIM card, and you can move it around from phone to phone as you please.Oct 15, 2010