Switching guide · AT&T

Switch from AT&T to Halo

Keep your number. Stay on the same network. Lose the contract.

schedule3 min readUpdated May 15, 2026By the Halo team
Quick summary
  • 01Same AT&T network underneath. Your coverage does not change.
  • 02Generate your AT&T Number Transfer PIN from att.com or the myAT&T app.
  • 03Start signup with Halo, choose “Keep my number,” and your port finishes in minutes.

NETWORKSame network underneath

Halo runs on AT&T's nationwide 5G and 4G LTE network. Your coverage stays the same. Your bill, your contract, and the rest of the noise do not.

STEP-BY-STEPSix steps to switch from AT&T

  1. 01
    lock_open

    Check that your phone is unlocked

    If you bought your phone from AT&T, it is usually locked until the device is paid off and the account has been active for at least 60 days. On iPhone, open Settings → General → About → Carrier Lock. “No SIM restrictions” means you are unlocked. On Android, open Settings → Connections → Mobile network → SIM status. Still locked? Request an unlock through AT&T's device-unlock portal. More detail: Is your phone unlocked?
  2. 02
    receipt_long

    Check what leaving will cost

    AT&T uses two different models. On an installment plan (most common) there is no ETF, but you still owe the remaining balance on your device. On a one- or two-year service commitment, the ETF is up to $325 for a smartphone, prorated at about $10 per month of service completed. Brand-new consumer wireless subscribers can typically cancel within 14 days with no ETF. Log in at att.com to confirm which model applies. More detail: Will your current carrier charge you to leave?
  3. 03
    pin

    Get your AT&T Number Transfer PIN

    AT&T requires a Number Transfer PIN before it will release your number. Sign in online or in the myAT&T app, open the Number Transfer PIN page in account settings, and generate the PIN. Save it. It is valid for a limited time. Direct link: AT&T number-transfer support.
  4. 04
    description

    Have your account details ready

    Halo needs your AT&T account number, account holder name, billing address on file, and Number Transfer PIN. Use the values exactly as they appear on your AT&T account.
  5. 05
    sim_card

    Start your transfer with Halo

    During signup, choose Keep my number, paste the details from the previous step, and submit. Most transfers complete within minutes.
  6. 06
    check_circle

    When your number transfers

    If you used a physical AT&T SIM, remove it. If you used an AT&T eSIM, disable it in your phone's cellular settings. Place a test call, send a test text, and load a web page on cellular. If anything is off, contact Halo support.
priority_high
Important
Do not cancel your AT&T line first. Canceling before the port can release your number back into the pool. Halo closes your AT&T line automatically once the transfer completes.
Ready to switch?

It takes about two minutes from start to finish.

Keep your number. Skip the contract. We close your old line for you.

Switch now