Living Abroad? How to Keep Your US Number and Keep Getting SMS Codes

2026-10-20

The short version: keeping your number alive comes down to three things — keep the line active with on-time payments, drop to a cheap keep-alive plan, and set up Wi-Fi Calling while you're still in the US. Do that, and your bank codes keep arriving over any Wi-Fi connection abroad.

1. Why you can't just let the line lapse

• US prepaid lines don't wait forever: after you stop paying, the carrier typically holds your number for only a few dozen days (policies vary — check your carrier's terms), then it goes back into the pool. Getting it back is nearly impossible.
• Lose the number and you lose access to everything tied to it: bank logins, payment apps, email two-factor. Fixing that from another country is painful.
• So sort out your keep-alive plan before you leave, not after the line goes dead.

2. Three ways to keep the number alive

• Drop to a cheap plan: move your number off the expensive plan onto a basic prepaid tier. Entry-level prepaid from a major carrier starts around $15/month (confirm current pricing at purchase) — the line stays active and so does your number.
• Go dual-SIM with eSIM: convert your US number to an eSIM stored on the phone, then get a local SIM for data abroad. The US line handles verification codes; the local line handles data. Clean split, nothing missed.
• Activate and test in the US first: whether it's a physical SIM or an eSIM, activate it on US soil — place a call, receive a text, confirm the number works. Troubleshooting with no connectivity abroad is miserable.

3. The key to codes abroad: Wi-Fi Calling

• With Wi-Fi Calling enabled, texts and calls come through over any Wi-Fi connection abroad — no local signal needed, no pricey international roaming.
• The critical step: turn it on and test it while you're still in the US. iPhone and Android setup steps are in our Wi-Fi Calling guide.
• Some devices and carriers restrict Wi-Fi Calling outside the US, so verify it actually works for your setup before you fly.

4. Pre-departure checklist

• ① Activate the SIM in the US and confirm calls and texts work.
• ② Enable Wi-Fi Calling and receive one test verification code over Wi-Fi.
• ③ Note your monthly renewal date, keep a balance on the account or turn on auto-pay — never let a payment lapse.
• ④ If you switch to eSIM, the old physical SIM deactivates — save your eSIM activation details.
• ⑤ Don't port the number to a pure VoIP service just to save money — some banks refuse to send codes to VoIP numbers.