Your iPhone stores your phone number in the Settings app, and you can view it in under a minute

Open Settings on your iPhone, tap Phone, and look at the line labeled My Number. That is your phone number. If you do not see it, your carrier may not have sent it to your device yet — this happens sometimes with new phones or after switching carriers. You can also find your number by opening Settings, tapping General, then About, and scrolling to Phone Number.

Your iPhone gets this information from your SIM card or, if you use eSIM, from your carrier's digital record. The number does not live on the phone itself the way a contact does — it lives on the carrier's network. That is why a phone that has never been activated will not show a number, and why the number changes if you move your SIM to a different phone.

Key Takeaways

  • Settings > Phone > My Number is the fastest way to see your phone number on any iPhone.
  • If My Number is blank, your carrier has not yet sent the number to your device, and you should contact them.
  • Your phone number lives on your SIM card or eSIM, not on the iPhone itself, so it moves with your SIM when you switch phones.
  • You can also find your number in Settings > General > About > Phone Number if the Phone app method does not work.

Why your iPhone might not show your number

A blank My Number field usually means your carrier has not yet provisioned your phone on their network. This is most common with brand-new phones, phones bought from a third-party seller, or phones you just switched carriers on. The carrier needs to push your phone number to your device, and this can take a few hours to a full day.

If you have had the phone for more than a day and the number still does not appear, contact your carrier directly. Have your account number and the phone's IMEI ready — you can find the IMEI by going to Settings > General > About and scrolling to IMEI. Your carrier can tell you whether the number has been sent and resend it if needed.

Finding your number if you use eSIM

An eSIM is a digital SIM card that lives in your phone's software instead of a physical chip. If you use eSIM, your phone number is stored on your carrier's servers and downloaded to your phone when you set up service. The process for finding your number is the same — Settings > Phone > My Number — but if it is blank, the eSIM set up may not have completed.

Check that your iPhone has an active internet connection (Wi-Fi or cellular from another carrier). eSIM set up often requires a data connection to read your number from the carrier. If you are on a new eSIM and the number has not appeared after an hour, restart your iPhone and try again. If it still does not show, contact your carrier and ask them to resend your eSIM set up code.

What to do if you need your number right now

If Settings does not show your number and you need it when ready, call your carrier's customer service line from any phone. You can find this number on your carrier's website or on any bill. Have your account PIN or the last four digits of your Social Security number ready — they will verify your identity and read your number to you over the phone.

You can also text a friend or family member from your iPhone and ask them what number the text came from. This works because your carrier sends your phone number along with every message you send, even if your phone does not display it locally.

How your phone number gets stored on your device

When you set up service with a carrier, they assign you a phone number and store it on your SIM card (if you use a physical SIM) or on their servers (if you use eSIM). Your iPhone reads this information from the SIM or downloads it from the carrier and displays it in Settings. The phone number is not stored in your iPhone's main storage the way your photos or contacts are.

This is why your phone number disappears if you remove your SIM and put it in a different phone — the new phone reads the same SIM and shows the same number. It is also why a phone with no SIM or eSIM will never show a number, even if it is fully charged and connected to Wi-Fi.

Moving your number to a new iPhone

If you are switching to a new iPhone, your phone number moves with your SIM card. Remove the SIM from your old phone, insert it into the new one, and your number will appear in Settings within a few minutes. If you use eSIM, the process is different — you will need to contact your carrier and ask them to transfer your eSIM to the new phone, or you can scan a new eSIM set up code if your carrier provides one.

During the transfer, your old phone will lose service as soon as you remove the SIM or deactivate the eSIM. Make sure you have moved all your contacts, photos, and other data to the new phone before you do this. You can use iCloud or a wired connection to transfer data between iPhones.

Frequently Asked Questions

Why does my iPhone say "Unknown" or show a different number in My Number?

This usually means your carrier sent the wrong number to your device, or your phone is reading an old SIM. Restart your iPhone and check again. If it still shows the wrong number, contact your carrier — they can correct it on their end and resend it to your phone.

Can I change my phone number from Settings?

No. Your phone number is controlled by your carrier, not by your iPhone. To change your number, you must contact your carrier directly. Most carriers allow you to change your number once per account per year, though policies vary.

What if I just got a new SIM card and my number is not showing?

Wait 30 minutes and restart your iPhone. If the number still does not appear, the carrier may not have activated the SIM yet. Call your carrier's customer service and confirm the SIM has been activated on your account. They can resend your number to the phone if needed.

Does my phone number get stored in iCloud?

No. Your phone number is stored by your carrier, not by Apple or iCloud. iCloud backs up your contacts and other data, but not your phone number. If you lose your phone, your number stays active on your carrier's network until you deactivate it or switch to a different phone.

Can I see my phone number on a locked iPhone?

No. You must unlock your iPhone and open Settings to view your phone number. If you have forgotten your passcode, you will need to restore the phone through a computer or contact Apple Support.