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Common Ground News

How do I get my old SIM card number back?

Author

David Ramirez

Updated on March 12, 2026

How do I get my old SIM card number back?

How to Reactivate an Old SIM Card
  1. Remove the SIM card from the handset.
  2. Write down the numbers that are printed on the SIM card.
  3. Contact your wireless provider to activate your SIM card.
  4. Give the IMEI number and SIM card number to your customer service agent.
  5. Put the SIM card back into your phone and replace the battery and cover.

Similarly one may ask, how do I find my old SIM card number?

Finding the SIM number in Settings

  1. Open your Apps list and tap on Settings. Scroll to the bottom of the menu and press About.
  2. Tap Status. On some phones like HTCs, this may be called 'Phone Identity'.
  3. Tap IMEI Information.
  4. Your SIM number will show as either the 'IMSI' number, or the 'ICCID number'.

Also Know, how can I get my old idea mobile number back? If your Idea Mobile is de-activated and it can be re-activated within 15 days.

  1. Try to request re-activation via Idea customer care.
  2. Visit nearest Idea store and submit reactivation request.
  3. Provide Address and Photo Id proofs.
  4. You may receive a confirmation call and then your number will be re-activated.

Moreover, can I get the same number if I lost my SIM?

If you've lost your mobile device and/or SIM card, you can replace it with another phone or SIM card and keep the same mobile number. This ensures your phone and/or SIM card can't be used by someone else.

How can I recover my lost SIM card?

Contact customer service. If a SIM card is lost or stolen, contacting the SIM card's service provider can ensure that the lost card is turned off and no unexpected usage occurs. Customer service may also be able to locate the nearest retail store that can provide a replacement SIM.

How do I find my mobile number from my SIM card?

Go to Category under “About.” Select “About” from the System Settings screen and tap “Category” to open a drop down list. View your number. Tap “SIM Card” from the drop-down list and your SIM card mobile number should be displayed on the screen.

How can I find my SIM serial number online?

Finding the SIM number in Settings
  1. Open your Apps list and tap on Settings. Scroll to the bottom of the menu and press About.
  2. Tap Status. On some phones like HTCs, this may be called 'Phone Identity'.
  3. Tap IMEI Information.
  4. Your SIM number will show as either the 'IMSI' number, or the 'ICCID number'.

Can I get a new SIM card with my old number?

Yes, you can. If you move from one network to another then you need to ask your old network for a PAC code, and give it to your new network within 30 days. Your new network will port your mobile number over to your new SIM.

How do I check my own number?

To check your cell phone number in Idea SIM dial the below USSD codes:
  1. DIAL : *131*1#
  2. Idea number check : *789#
  3. *100#
  4. *1#
  5. *131*1#
  6. *147*2*3# ( SUGGESTED BY USER – cross check before using )
  7. *147*8*2#
  8. *147*1*3#

How can I find my lost mobile number?

From the Home screen, open “Settings“. Scroll down and select “About phone” or “About device . Select “Sim Status” or “Phone identity”. Your phone number will display here.

Can I keep my old number with a new SIM card?

Yes, you can. If you move from one network to another then you need to ask your old network for a PAC code, and give it to your new network within 30 days. Your new network will port your mobile number over to your new SIM.

Can you track phone without SIM?

Your mobile carrier has access to your GPS location at any time. Any phone, even phones without SIM cards, can make emergency calls. If emergency services can locate you when you make a call in any circumstance, even a phone without a SIM can be traced using geo-location.

Can I get another SIM card with the same number?

Actually you can get the same number if you loose your sim. In case you're in different circle then they'll not give you the sim. Actually the system will not allow them to do so. So, visit to your circle's store along with your aadhar card to get the new sim.

Can I get a new SIM but keep my old number?

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.

Can I keep my phone number if I lost my phone?

No. Your host will cancel the existing/lost/stolen phone and transfer your number to a replacement phone.

Do SIM cards expire if not used?

When you activate a prepaid subscriber identity module, or "SIM," card for a phone, the call, text and Internet credit you purchase expires after a certain period of time, as specified by the mobile carrier. The SIM card itself never expires, as the SIM serves only to allow the handset to identify the cellular network.

Can you reuse a deactivated SIM card?

The "deactivation" of a SIM is an entirely administrative process. It has nothing to do with the SIM itself. If the system deletes the old SIM from the database or marks its record to prevent reuse, then it can't be reused. A new T-Mobile sim only costs .

How do I know if my SIM card is active?

Originally Answered: How do I check a SIM card's status (active or not)?
  1. Insert the sim card in mobile device.
  2. Make sure that you are in area where network is available.
  3. Turn on the device.
  4. Dial a number.
  5. If its showing on screen , that not registered. Then sim is not active.

Why my idea number is not working?

You can call the Idea customer care on 12345 (chargeable at 50p for 3 minutes for agent access) from your Idea mobile phone or dial the 10 digit number specific to your local region from any other phone, anytime. For any requests and complaints, you may dial 198 toll-free and speak with our customer care executive.

What happens if I recharge idea twice?

Idea Cellular is allowing users to recharge the same Rs 398 plan for multiple times. For example, if you recharge with the Rs 398 plan for two times, you will get benefits for 140 days. Likewise, if you recharge the plan for three times at the same time, you will get the benefits for 210 days.

How do I deactivate my SIM card?

You can deactivate your SIM card by calling customer care.
  1. Call your customer care.
  2. Tell them to block your SIM card.
  3. Verify your ownership by giving the right information like name, DOB, address, mother name, Aadhar details, etc.
  4. After all, if everything is okay then your number will be blocked.

How can I recharge my expired idea SIM?

Your Idea mobile phone will stop working when the account value is too low to make a call or zero or if your validity period has expired. . You need to recharge within the grace period of 90 days or your Idea prepaid will become invalid.

How do I permanently delete my SIM card?

  1. Go to mobile setting.
  2. In settings go to security settings.
  3. Then sim card lock setting.
  4. Set a password on sim which you want to deactivate.
  5. Save the setting and reboot the mobile phone.
  6. When mobile switch on then you can put any random password on 3 times and look the magic that your sim card has been blocked.

How can I increase my idea SIM validity?

All a prepaid customer has to do is to send a USSD message to *125* followed by the number of days of extension required and get an instant confirmation of the same. For example, a customer seeking a five-day extension the SMS would be *125*5#.

How can I block my SIM card if I lost my phone?

The IMEI code: to block a lost or stolen handset
This is a 15 or 17-digit number that is unique to each phone. You will need to give this number to your telecom provider so they can block your SIM card if your handset is lost or stolen. It usually comes with the packaging of your phone and also features on your bills.

Can I get a duplicate SIM card?

No, from a number of perspectives. Each card has a unique “burned-in” serial number called an Integrated Circuit Chip ID (ICCID). It cannot be legally cloned. Far more importantly, cloning a SIM card is illegal and unethical - depending on your purpose of doing so.

How can I find my lost SIM card at home?

Request for assistance in tracking the location of your SIM card. Once the network provider detects that the original SIM card has been replaced, using the IMEI of your mobile phone, the network provider can trace the new sim card number of your lost phone.

How do I get a new SIM with the same number?

The easiest way is to pop into your local store but you can also call or use live chat. In store will provide you a new sim, swap your number and credit if PAYG all in a few minutes. If requested via customer services on the phone it will already have your account details on it and will just need a call to activate it.

Can you keep the same number if you lose your SIM card?

If you've lost your mobile device and/or SIM card, you can replace it with another phone or SIM card and keep the same mobile number. This ensures your phone and/or SIM card can't be used by someone else.

Can you keep same number if you lose your phone?

No. Your host will cancel the existing/lost/stolen phone and transfer your number to a replacement phone.

How much does it cost to replace a SIM card?

They typically charge between $10 and $45 per device you add to your plan.

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