The Only Phone Setup Guide You Need Before Moving Abroad

Your phone is the single most important piece of tech you own when you move abroad. It’s your bank, your map, your translator, your lifeline. And if you don’t set it up right before you leave, you’re going to have a very bad first week.

Unlock your phone. Now.

If you bought your phone through a carrier — AT&T, T-Mobile, Verizon — it’s probably locked. A locked phone won’t accept a foreign SIM card. You’ll land in your new country with a very expensive paperweight.

Call your carrier. Ask them to unlock it. This takes anywhere from five minutes to five days, depending on the carrier and how long you’ve had the phone. Do it at least two weeks before you leave. Don’t wait.

Get an eSIM before you fly

Physical SIM cards are fine. eSIMs are better. You can buy one from Airalo, Holafly, or your destination country’s carrier before you even board the plane. You land, you turn on your phone, you have data. No hunting for a kiosk at the airport.

The catch: not every phone supports eSIM. If yours doesn’t, buy a local SIM when you arrive. But check your phone’s compatibility now — not at the gate.

Keep your US number

Do not cancel your US number. Port it to Google Voice for a one-time $20 fee. You’ll keep your number for 2FA, for banks that insist on a US number, and for anyone back home who still calls you.

This is not optional. Your US phone number is a key that unlocks dozens of accounts. Lose it and you’ll spend weeks trying to get back in.