How to Keep Your U.S. Phone Number When You Move Abroad

Don’t Cancel Your U.S. Phone Number Yet

You’re moving abroad, so canceling your American cell phone plan might seem like an obvious item on the checklist.

Not so fast.

Your U.S. phone number may be connected to much more of your life than you realize:

• Bank accounts
• Credit cards
• Two-factor authentication
• Government accounts
• Insurance
• Subscription services
• WhatsApp and other messaging apps
• Friends, family and professional contacts

Once you give up that number, getting it back may be difficult or impossible.

Fortunately, you don’t necessarily have to keep paying for an expensive U.S. cellular plan just to keep your number.

There are several ways to take it with you.

Your Main Options

Here are the five most common approaches, each with a different trade-off between cost, convenience, and functionality.

• **Keep your current U.S. carrier** — simplest, but often the most expensive.
• **Switch to a cheaper U.S. plan** — good if you still want real cellular service when you return.
• **Port your number to Google Voice** — low cost, but some verification texts may not work.
• **Use a number-parking or VoIP service** — best for preserving the number, though SMS/2FA support varies.
• **Dual SIM: U.S. + local number** — full access, but two plans to manage.

For many Americans, dual SIM or a cheap U.S. line combined with a local SIM/eSIM is the most practical setup.

Option 1: Keep Your Current U.S. Phone Plan

The easiest option is simply keeping what you already have.

Major U.S. carriers offer various international roaming options, and Wi-Fi calling can sometimes make maintaining a U.S. line abroad relatively straightforward.

The benefit is continuity.

Your number remains a standard U.S. mobile number, which can be particularly helpful for services that send security codes by SMS.

The problem? Cost.

Paying for a premium U.S. cellular plan indefinitely may not make sense when most of your cellular data usage happens in another country.

This approach makes more sense if you:

• Frequently return to the U.S.
• Need your U.S. line for work
• Want maximum simplicity
• Don’t mind paying more for convenience

Option 2: Move Your Number to a Cheaper U.S. Plan

You don’t have to choose between an expensive American phone plan and losing your number entirely.

Before leaving, you can potentially port your existing number to a lower-cost U.S. carrier or plan.

Then use that line primarily for U.S. calls, important texts, account verification, banking, and trips back to the United States.

Your local SIM or eSIM handles everyday data and local calls abroad.

This can substantially reduce the cost of maintaining your American number.

Important: Check whether the specific carrier supports Wi-Fi calling and extended international use before switching. Some U.S. services are designed primarily for domestic customers.

Option 3: Port Your Number to Google Voice

Google Voice can be an attractive option for people who mainly want to preserve their U.S. number rather than maintain a traditional U.S. cellular plan.

Eligible U.S. numbers can be ported into Google Voice for a fee. You can then access calls and messages over the internet.

Why people like it

• Keep your existing number
• Access it over Wi-Fi/data
• Avoid maintaining a full U.S. cellular plan
• Convenient for calls and ordinary texts

But there’s a significant caveat.

Google Voice is a VoIP service rather than a conventional mobile carrier. Some banks and other services do not send authentication codes to VoIP numbers.

That means I wouldn’t blindly port your number to Google Voice the night before leaving the country. Test the accounts that matter first.

Option 4: Park Your Phone Number

If you mostly care about not losing your number, number-parking services provide another option.

The idea is simple: you transfer your U.S. number to the service so another customer can’t receive it. Depending on the provider, you may also be able to receive calls, texts, or voicemail.

This can be inexpensive if you’re going abroad for several years and don’t expect to actively use your American number.

However, the same warning applies: number parking isn’t necessarily a good solution for two-factor authentication. Check SMS and verification capabilities before transferring anything.

Option 5: Use Two Numbers

For many people moving abroad, this is the setup I’d consider first.

U.S. number

Keep it for banks, credit cards, two-factor authentication, U.S. friends and family, U.S. business contacts, and accounts you established before moving.

Local number

Use it for local businesses, doctors, schools, deliveries, landlords, local banking, restaurants, and everyday life.

Modern dual-SIM phones make this much easier than it used to be. Your phone may support a physical SIM plus an eSIM, multiple eSIMs, or two active eSIM lines depending on the device.

What About Airalo?

Services such as Airalo can be useful when you first arrive somewhere because you can purchase an eSIM and get mobile data without immediately finding a local carrier.

But there’s an important distinction: a travel eSIM isn’t necessarily a replacement for your U.S. number.

Many travel eSIM packages are primarily data services. A useful setup could therefore look like: U.S. number for calls, texts, and verification; travel or local eSIM for mobile data abroad.

Once you’re settled, you may decide to replace the travel eSIM with a local carrier.

Why Two-Factor Authentication Is the Biggest Issue

This is the part I’d deal with before leaving the United States.

Imagine arriving in Spain. Your bank notices you’re logging in from another country. It asks you to verify your identity. Then: “We’ve sent a security code to (*) *-1234.” Except you canceled that number two weeks ago.

That’s a problem you don’t want to solve from another continent.

Before moving, review your important accounts and identify which ones depend on your phone number.

Better Than SMS: Authenticator Apps

Where possible, move important accounts away from SMS-based authentication.

Authenticator apps generate verification codes on your device instead of sending them to your phone number. That means changing SIM cards doesn’t necessarily lock you out.

Depending on the account, you may also be able to use passkeys, security keys, authenticator apps, or backup codes.

Don’t remove your phone number from everything indiscriminately. Instead, add alternative authentication methods where the service supports them.

Your Pre-Move Phone Checklist

Before leaving the U.S.:

• Decide whether you’re keeping your existing carrier
• Confirm your phone is unlocked
• Check whether your phone supports dual SIM/eSIM
• Identify accounts using your U.S. number
• Add authenticator apps or passkeys where possible
• Save account recovery codes securely
• Test Wi-Fi calling
• Research local SIM/eSIM options
• Confirm your U.S. line will remain active abroad
• Do not cancel your old service before a number port is complete

That last point matters. If you decide to port your number, initiate the port before canceling the existing account. Canceling first can cause you to lose control of the number.

A Simple Setup for Moving Abroad

For many Americans, a practical arrangement looks like this:

• Keep your U.S. number on an inexpensive U.S. line
• Get a local SIM/eSIM for everyday life
• Move critical accounts away from SMS verification when possible

You retain your American digital identity while avoiding expensive international roaming for everyday data.

The Bottom Line

Your phone number might seem like a tiny detail compared with visas, housing and flights. But it’s connected to an enormous amount of your life.

Don’t cancel your U.S. phone number just because you’re leaving the United States. Figure out how you’ll preserve it first.

Whether that means maintaining a cheaper U.S. plan, porting the number, or using dual SIM, dealing with it before your move can save you a considerable headache later.

And that’s the thing about moving abroad: it’s rarely one enormous task. It’s dozens of small decisions like this one. Get enough of those decisions organized, and moving abroad starts feeling much more manageable.

Planning Your Move? NextLatitude helps turn an international move into a step-by-step plan—from choosing a country to understanding visas, budgets, healthcare and the practical details people often forget. Use the Country Match Quiz to find your best fit, the Budget Planner to model your move, or our full guide on what it actually costs to move abroad.