SIM cards are specialized microchips that store your phone's number, address book and even text messages. The use of SIM cards simplifies transferring data from one phone to another. The AT&T GoPhone plan offers cellular service without having to perform a credit check or having to sign a long-term service contract. If you are switching to a new SIM card, but wish to keep your old GoPhone SIM card number, you may do so by porting the number.
Things You'll Need
- SIM card identification number
Write down the SIM identification number of your current GoPhone SIM card. Locate this number by removing the SIM card from your GoPhone. The identification code consists of 20 numbers and letters. Underneath this information, write the SIM card identification numbers for your new SIM card.
Contact the AT&T Port Activation Center at 888-898-7685 and inform the representative you wish to transfer your current phone number to a new SIM card. The representative will ask for the old SIM card identification number, along with the phone number you wish to transfer. When asked, provide the representative with the new SIM card identification number.
Turn off your cell phone, when instructed by the representative. Once the representative has entered your information into the SIM port database, your wireless number will begin the process of switching to the new SIM card. The representative will tell you when to turn your cell phone back on. It may take up to five business days for the phone number to port with the new SIM card.
Tips & Warnings
- Check the status of your porting number by visiting the AT&T Number Transfer/Port Status checker.
- Do not attempt to port a phone number that does not belong to you; the process will not complete.
- Photo Credit George Doyle & Ciaran Griffin/Stockbyte/Getty Images
Can I Switch SIM Cards With Another Phone?
Can I Switch SIM Cards With Another Phone?. ... If you have a locked phone for one carrier and you want to...
How Do I Check My SIM Card Number?
SIM cards are small cards that contain the personal information that's stored on your cell phone. SIM stands for Subscriber Identity Module,...
How to Transfer Contacts From an AT&T SIM Card to T-Mobile
AT&T Wireless and T-Mobile USA are both major mobile providers in the U.S., but they aren’t necessarily compatible when it comes to...
How to Switch to a Go Phone & Keep My Current Cell Number
Slide your new SIM card, ... An AT&T Go Phone gives users another option for getting cell phone service. ... How to...
How to Transfer Cell Phone Numbers to New Phone
How to Transfer Cell Phone Numbers to New Phone. ... With the use of your SIM card, you can transfer your contacts...
How to Change Phone Numbers on SIM Cards
How to Change Phone Numbers on SIM Cards. Your mobile telephone number is ... and other information from the old card to...
How to Transfer Contacts From a SIM Card
How to Transfer Contacts From a SIM Card. Part of the series: Cell Phones & SIM Cards. ... If you've got another...