What happens when you switch phones

When you get a new phone, you have two separate things to move: your phone number (so calls and texts reach you) and your data (contacts, photos, messages, apps). Your phone number stays with your carrier — the company that provides your cell service — so you contact them to move it. Your data lives on your phone itself or in cloud storage, so you move it directly between devices or through an online account.

The process differs depending on whether you're switching from an iPhone to an iPhone, Android to Android, or between the two systems. Some data moves easily; some requires extra steps. Your carrier handles the number transfer, which usually takes a few hours to a day.

Key Takeaways

  • Your phone number belongs to your carrier, not your phone, so you contact them to move it to a new device.
  • Data like contacts and photos can move through cloud accounts (iCloud for iPhone, Google Account for Android) or by connecting phones directly.
  • Switching between iPhone and Android requires different steps than staying within the same system.
  • Before you switch, back up your old phone and make sure your new phone is activated with your carrier.
  • The number transfer usually completes within hours, but you should keep your old phone on for a day or two in case messages arrive late.

Moving your phone number to your new device

Contact your current carrier — Verizon, AT&T, T-Mobile, or whoever provides your service — and tell them you want to move your number to a new phone. They will ask for your account number (on your bill) and the phone number you want to move. If your new phone is from the same carrier, they can often do this over the phone or through their app in minutes.

If you're switching carriers at the same time (moving to a different company), you'll need a port authorization code, sometimes called a PIN or transfer code. Your old carrier will give this to you when you ask. You then give this code to your new carrier, who will request the transfer on your behalf. The move usually takes 4 to 24 hours. During this time, your old phone may lose service for a few minutes.

Keep your old phone powered on for at least a day after the transfer completes. Text messages and calls that arrive while the transfer is happening may take time to reach your new phone, and having the old one on ensures you don't miss anything.

Transferring data between two iPhones

The easiest way to move everything from one iPhone to another is to use iCloud, Apple's cloud storage service. Before you switch, open Settings on your old iPhone, tap your name at the top, then tap iCloud. Make sure the toggle for iCloud Backup is on, then tap "Back Up Now." This saves your contacts, photos, messages, app data, and settings to Apple's servers.

When you turn on your new iPhone, you'll see a setup screen that asks if you want to restore from an iCloud backup. Sign in with the same Apple ID you used on your old phone, choose the backup you just created, and wait for the transfer to finish. This can take 30 minutes to several hours depending on how much data you have and your internet speed.

If you want to transfer data without using iCloud, you can also connect both iPhones with a cable and use the "Quick Start" feature. Hold your new iPhone next to your old one, and a setup screen will appear on the new phone asking if you want to transfer data. Tap yes, and the phones will copy everything wirelessly. This method is faster than iCloud for most people.

Transferring data between two Android phones

Android phones use a Google Account to back up and restore data. Before you switch, open Settings on your old Android phone, scroll down to "System," then tap "Backup." Make sure "Back up to Google Account" is on. Your contacts, calendar, Gmail, photos (if you use Google Photos), and app data will save to your Google Account.

When you set up your new Android phone, you'll be asked to sign in with a Google Account during the initial setup. Use the same account you backed up to on your old phone. The phone will automatically restore your contacts, calendar, Gmail, and app data. Photos stored in Google Photos will appear in the app once you open it and sign in.

If your new phone is already set up, you can still restore data manually. Open Settings, go to "System," tap "Reset options," then "Reset all settings" or "Erase all data" (the exact wording varies by phone). During the setup that follows, sign in with your Google Account and choose to restore from backup.

Switching from iPhone to Android or Android to iPhone

Moving between operating systems is more complicated because iCloud and Google Account don't talk to each other. Your contacts and calendar will transfer, but apps, messages, and some photos may not.

For contacts: On your old phone, export your contacts as a file (usually a .vcf file) and email it to yourself, or use a free service like Google Takeout (for iPhone) or Samsung Smart Switch (for Android). On your new phone, import that file into your contacts app. For messages, there's no built-in transfer tool — you'll need to use a third-party app like MobileTrans or Wondershare, which cost money but handle the transfer automatically.

For photos and videos: Use Google Photos on both phones. Upload everything from your old phone to Google Photos, then sign into Google Photos on your new phone and read what you need. For apps, you'll have to reinstall them one by one on your new phone, but your app data (saved games, preferences, login info) may restore if the app is linked to your Google or Apple account.

What to do if data doesn't transfer

Some apps store data only on the phone itself and won't transfer automatically. Before you switch, open each app you use regularly and check its settings for a backup or export option. Many banking apps, password managers, and games let you back up data or link to an account so you can restore it on your new phone.

For text messages that don't transfer, you have a few options. You can take screenshots of important conversations on your old phone, or use a backup app like SMS Backup+ (for Android) or a third-party service. Some carriers also keep message history in your account, though this varies.

If you lose photos or videos, check your old phone's cloud storage (Google Photos, iCloud, OneDrive, or Dropbox) — they may already be backed up there. If not, and the old phone still works, you can connect it to a computer and manually copy files over.

Keeping your old phone after the switch

Once your number is transferred and your data is on your new phone, your old phone will no longer receive calls or texts on your number. However, it can still connect to Wi-Fi and use apps. Many people keep their old phone as a backup, to access old photos or messages, or to use as a tablet at home.

If you want to sell or give away your old phone, erase all data first. On iPhone, go to Settings, tap "General," then "Reset," and choose "Erase All Content and Settings." On Android, go to Settings, tap "System," then "Reset options," and choose "Erase all data." This removes everything from the phone so the new owner can't access your information.

Frequently Asked Questions

Will I lose my text messages when I switch phones?

Not if you back up before switching. iCloud backs up iPhone messages automatically, and Google Account backs up Android messages. If you're switching between iPhone and Android, messages won't transfer automatically — you'll need a third-party app or to take screenshots of important conversations.

How long does it take to move my phone number?

If you're staying with the same carrier, it can happen in minutes through their app or over the phone. If you're switching carriers, it usually takes 4 to 24 hours. Keep your old phone on during this time in case messages arrive late.

Can I move my number if I still owe money to my old carrier?

Yes. Your phone number can be transferred even if you have an outstanding balance. However, the old carrier may pursue collection on the debt separately. Check your contract to see if there are early termination fees.

What if my new phone isn't activated yet?

You need to set up it with your carrier first. If you bought it from the carrier, they usually set up it in the store. If you bought it elsewhere, contact your carrier and give them the phone's IMEI number (found in Settings) so they can set up it on your account before you transfer your number.

Do I need to do anything special if I'm getting a phone from the same carrier?

No. Contact your carrier, tell them you have a new phone, and they'll move your number to it. You don't need a port authorization code because you're staying with the same company. The process is usually faster than switching carriers.