The fastest way to find your number

Open Settings, tap Phone, and look at the line labeled "My Number" at the top. That is your phone number. If nothing appears there, your carrier has not yet registered the number to your SIM card — call your carrier's customer service line from another phone and they can confirm what number is assigned to you.

If you do not see a Phone option in Settings, you have an iPad or iPod Touch, which do not have phone numbers. Only iPhones have cellular service and a phone number tied to them.

Key Takeaways

  • Your phone number appears in Settings > Phone > My Number on any iPhone with active cellular service.
  • If My Number is blank, your SIM card has not been registered yet — contact your carrier to confirm your number.
  • You can also find your number by calling it from another phone, asking Siri, or checking your carrier's website or app.
  • Your phone number is different from your Apple ID, iCloud email, or device serial number.

What to do if My Number is blank or missing

A blank My Number field usually means your SIM card is new or was recently moved to this phone. The carrier's system has not yet linked the number to your device. This is common after switching phones or activating a new SIM.

Call your carrier's customer service from a different phone — a landline, a friend's phone, or a computer with calling software. Have your account number or the phone number you think is assigned ready. They can confirm the number and sometimes push an update to your phone that makes it appear in Settings within a few minutes.

If you switched carriers or ported your number from another provider, the process can take up to 24 hours. During that time, My Number may stay blank even though the number is active.

Other ways to find your phone number

Ask Siri by saying "What is my phone number?" Siri will read it aloud if it is stored in your contacts under your own name. This works only if you have created a contact card for yourself.

Call your own number from another phone. When it rings, you will hear your phone number announced by your carrier's system, or you can straightforward look at the caller ID on the other phone.

Check your carrier's website or app. Log in to your account and look for "My Account," "Phone Number," or "Line Information." Every major carrier — Verizon, AT&T, T-Mobile, and regional carriers — displays your number in their online portal. This is also the fastest way to confirm your number if you are away from your phone.

Why you might need your phone number

You need your phone number to give to doctors, banks, employers, or anyone who needs to reach you by phone. You also need it to set up two-factor authentication on accounts, where a code is texted to your number as a security step.

Your phone number is not the same as your Apple ID (the email you use to sign into iCloud), your iCloud email address, or your device's serial number. Each serves a different purpose, and you may need to know all of them depending on what you are doing.

How to save your phone number where you can find it

Create a contact card for yourself. Open Contacts, tap the plus sign to add a new contact, type your name, and enter your phone number in the phone field. Then tap "Add to Favorites" so it appears at the top of your contacts list.

You can also write your number down and keep it in a safe place — a notebook, a password manager, or a note in your phone's Notes app. This sounds old-fashioned, but if you lose access to your phone or your carrier's system goes down, having your number written somewhere else can save you hours of trouble.

What to do if you think your number is wrong

If Settings shows a number you do not recognize, or a number you used to have, contact your carrier when ready. Ask them to confirm which number is currently active on your account and which SIM card it is tied to.

If you recently switched phones or SIM cards, the old number may still appear in Settings for a few hours. Restart your phone by turning it off and back on. If the wrong number persists after a restart, call your carrier — it usually means the SIM card was not activated correctly.

Frequently Asked Questions

Is my phone number the same as my Apple ID?

No. Your Apple ID is the email address you use to sign into iCloud, the App Store, and other Apple services. Your phone number is what your carrier assigns to your SIM card for making calls and sending texts. You can have an Apple ID without a phone number, and you can have a phone number without an Apple ID.

Can I find my phone number if I do not have cellular service?

If you have an iPad or iPod Touch, you do not have a phone number at all — those devices only connect to Wi-Fi. If you have an iPhone but no active cellular plan, Settings will not show a phone number. You would need to contact your carrier or check your account online to see what number is assigned to your SIM card.

What if I just got a new SIM card and My Number is still blank?

Wait a few hours and restart your phone. If it is still blank after that, call your carrier's customer service. They can confirm the number is active and sometimes send a signal to your phone to refresh the information. set up can take up to 24 hours for a brand-new SIM card.

Can someone else see my phone number from my iPhone?

Anyone who has physical access to your phone can open Settings and see your number. If you share your phone with family members or let someone borrow it, they can find this information. Your phone number is not hidden or password-protected in Settings.