The fastest way to find your phone number

Your phone number is usually visible in your phone's settings without making a call or sending a text. On most phones, you can find it in under a minute by opening Settings, looking for "About Phone" or "Phone Information," and scrolling to a line that says "Phone Number," "My Number," or "Mobile Number." The exact location and wording varies by phone type and age, but the number will be there if your carrier has registered it to your device.

If you cannot find it in settings, your carrier's customer service line or website will show it immediately. You can also ask someone to call you and look at the incoming number on your screen, though this only works if your number is not blocked from showing up on their end.

Key Takeaways

  • Your phone number lives in your phone's Settings app under a section called "About Phone," "Phone Information," or "Device Information."
  • If settings do not show a number, your carrier may not have registered it yet, which is common on brand-new phones or after a recent switch.
  • Your carrier's website or customer service line will always have your number on file, even if your phone does not display it.
  • Some phones let you see your number by dialing *#100# or *#62# (these codes work on some Android devices but not iPhones).

Finding your number on Android phones

Open the Settings app and scroll down to find "About Phone" or "About Device." Tap it, then look for "Phone Number," "My Phone Number," or "Status." Your number should appear on that screen. If you see "Unknown" or nothing at all, your carrier has not yet registered the number to your SIM card — this is common on brand-new phones or right after switching carriers.

Some Android phones also let you dial *#100# or *#62# to see your number in a pop-up window. Not all carriers support these codes, so if nothing happens when you dial them, that is normal and does not mean anything is wrong.

Finding your number on iPhones

Open Settings and tap "Phone." Your phone number will appear at the top of the screen next to "My Number." If you do not see a number there, or if it says "Unknown," your carrier has not yet registered it to your SIM card or eSIM.

On older iPhones, you may need to go to Settings, then General, then About, and scroll down to find "Phone Number." The location changed between iOS versions, but it is always in the Settings app somewhere.

What to do if your phone does not show a number

If your settings screen is blank or says "Unknown," your carrier has not yet linked your phone number to your device. This happens most often on brand-new phones, after you switch carriers, or if you just activated a new SIM card. Wait 24 to 48 hours and check again — the number usually appears automatically once the carrier's system catches up.

If it still does not appear after two days, contact your carrier directly. Call their customer service line (the number is on your bill or on their website), text them, or log into your account online. They can tell you whether the number is registered and push it to your phone if it is not showing up yet. You do not need to visit a store for this.

Finding your number through your carrier

Every carrier keeps your phone number on file in your account. Log into your carrier's website or app — Verizon, AT&T, T-Mobile, and most others have a "My Account" or "Account Details" section that displays your phone number immediately. This works even if your phone itself does not show the number.

If you do not remember your login or do not have online access set up, call your carrier's customer service line. You will find the number on your bill, on your carrier's website, or by searching "[Carrier Name] customer service." They can tell you your number in seconds and do not need any special information from you — they can look it up by your account details or the phone number you are calling from.

Using your number after you find it

Once you have your number, write it down or save it somewhere you can find it later. Many people take a screenshot of the settings screen or store it in their phone's contacts under a name like "My Number" so they do not have to dig through settings again.

If you are setting up a new phone and need to give your number to someone, you now have it. If you are trying to find your number because you lost your phone or switched devices, your carrier's website is the most reliable source — it will always have the correct number even if your new phone has not caught up yet.

Frequently Asked Questions

Why does my phone say "Unknown" for my phone number?

Your carrier has not yet registered the number to your SIM card or eSIM. This is normal on new phones or right after switching carriers. Wait 24 to 48 hours and check again. If it still shows "Unknown" after two days, contact your carrier to confirm the number is active on your account.

Can I find my phone number if I forgot my PIN or password?

Yes. Call your carrier's customer service line — you do not need to log in. They can look up your number using your account details or by identifying you through security questions. The number is on your bill or on their website.

What if I have multiple phone numbers on one device?

If your phone has two SIM cards or an eSIM plus a physical SIM, your settings screen will show both numbers. Look for "SIM 1" and "SIM 2" or "Primary" and "Secondary" labels. Each number will be listed separately so you can tell them apart.

Does dialing *#100# or *#62# work on all phones?

No. These codes work on some Android phones but not all, and they do not work on iPhones. If you dial them and nothing happens, your phone simply does not support that feature. Check your settings instead, or contact your carrier.

I just switched phones — how do I know my old number transferred?

Check your new phone's settings first. If your old number appears there, it transferred successfully. If it does not, log into your carrier's website or call them. They can confirm whether the number is active on your new device and resend it if needed.