- 1). Decide whether you want to contact your carrier by phone or go to an authorized service center. If you're going to work over the phone, call from a land line or alternate cell phone with a separate account.
- 2). Contact the service provider and indicate that you want a new number. The representative may even try to accommodate special number requests.
- 3). Allow the representative to reprogram the SIM card to reflect the change. You may be directed to type a series of numbers into the phone.
- 4). Allow several hours for the number change take effect. According to ConsumerAffairs.com, "Cell phone numbers are supposed to be switched in less than three hours but that's just a guideline. It may take longer. " During that time, you can still complete outgoing calls.
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