To get an old phone number back, your immediate action must be to contact your previous mobile carrier directly. This is the only way to reclaim a number before it is recycled and permanently reassigned to another user.
Contact your previous carrier to get an old phone number back
The critical first step is reaching out to your old provider as soon as possible. Time is the most important factor because carriers do not hold numbers indefinitely. For postpaid plans, the recycling timeline is typically 90 days after cancellation. For prepaid SIMs, the window is shorter, usually 30 to 60 days from the last top-up or activity. Once that period passes, the number enters the carrier's pool and can be given to a new customer. Contact customer support, provide your account details and previous phone number, and ask whether the number is still in your name or within its grace period.
Carrier-specific steps for reactivating your number
Each carrier has its own reactivation procedures and requirements. Follow the steps below for your specific provider.
AT&T Prepaid and postpaid
For AT&T Prepaid, if service is canceled due to non-payment after 60 days past balance expiration, you typically need to purchase a new SIM card and plan, and the old number may be lost. For AT&T postpaid customers, you can restore service after a non-payment suspension by paying the full past-due balance, which may include a service reconnection or restoral fee.
Verizon
Verizon customers can reconnect temporarily suspended services through the My Verizon website or the My Verizon app. Navigate to Account, then My Devices, and select Suspend or reconnect to follow the prompts.
EE (UK)
For EE Pay As You Go (PAYG) SIMs, the SIM is deactivated after 6 months of non-chargeable use, followed by a 3-month grace period. During that grace period, you can contact EE Customer Service at 07953 966150 to reactivate it before it is permanently lost.
Vodafone Australia
Vodafone Australia places disconnected numbers in a 6-month quarantine period. Reconnection may be possible by calling customer care at 1300 650 410 if you are the former customer and the number was originally allocated by Vodafone and has not yet been reissued.
Port your old number to a new provider
If your old number is still active or has been recently reactivated, you can transfer it to a new carrier through number porting. Contact your new provider and ask about their porting policy. They will guide you through the process of moving the number from your old carrier to your new one. This is the same process used for porting and releasing phone numbers when switching providers, and it ensures you keep your digits on the network you prefer.
Check if your old number is still available
If your number has been released but not yet reassigned, you may still be able to reclaim it. Use online services or tools that allow you to search for available phone numbers by area code or specific digits. If you find your old number is available, contact a service provider to acquire it and assign it to your device. Act quickly, as available numbers can be taken at any time.
Update your accounts to avoid security risks
Unused phone numbers that are recycled can pose a serious security risk if they remain linked to your online accounts for password recovery or two-factor authentication. Once someone else obtains your old number, they could potentially reset your passwords or access your accounts. Immediately update your phone number on all apps, websites, and services that use it for verification or login purposes.
Frequently Asked Questions
Can I get my old phone number back if it has already been reassigned?
Once a number has been reassigned to a new customer, it is extremely unlikely you can get it back. The new owner has legal rights to that number, and carriers generally will not remove it from an active account.
Are there fees for reactivating an old number?
Some carriers may charge a reconnection or restoral fee to reactivate a suspended line. The amount and whether it applies depend on your specific carrier and plan type. Always ask about any fees before proceeding.
Can I transfer my old number to a new phone or carrier?
Yes, in most cases you can transfer your old phone number to a new phone or a new carrier through number porting. Your new service provider will guide you through the steps required to initiate the transfer and ensure a smooth transition.
How long do carriers keep inactive numbers before recycling them?
Postpaid numbers are typically held for about 90 days after cancellation. Prepaid numbers are usually recycled after 30 to 60 days from the last activity or top-up. These timelines vary by carrier and region.
What information do I need to provide to my carrier to reclaim my number?
You will typically need to provide your full name, account details, the phone number you want back, and proof of ownership such as a previous bill or account PIN. Be prepared to verify your identity before the carrier will take any action.
For the wider topic, see porting and releasing phone numbers.
