Use TwinNumber with Mercari.
Living in the U.S. and selling on Mercari? Use a real U.S. mobile number for the code that verifies your account and the SMS login verification that keeps it yours.
- What we tested
- Receiving SMS verification codes
- Line type
- Mobile
- Last tested
- Oct 22, 2026
We re-test Mercari regularly and update this date.
What Mercari uses your number for
- Mercari may ask you to verify your account with an SMS code so only you can log in.
- SMS login verification can text you a code every time you log in.
- Mercari asks you to update your account whenever your phone number changes.
Add your TwinNumber on Mercari
- 01
Open Notifications
In the Mercari app, go to Profile > Settings > Notifications.
- 02
Change the number
Tap Change your mobile number and enter the new one.
- 03
Verify it
Enter the SMS code Mercari sends; codes expire after 10 minutes.
Why the line type matters
Marketplaces often check whether a number is mobile, landline or VoIP before sending a code, and many turn VoIP numbers away. TwinNumber numbers are registered as mobile.
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EtsyQuestions
Does Mercari accept VoIP numbers?
No. Mercari's help says it can't verify international, prepaid or VoIP phone numbers. TwinNumber numbers are registered as mobile.
Can I use Mercari from outside the U.S.?
No. Mercari's help says it can only be accessed from within the United States, and you can't log in from abroad until you return.
How do I turn on login codes?
In the app, go to Settings > Account security and switch on SMS login verification.
Is TwinNumber affiliated with Mercari?
No. We test our numbers with popular services and publish the results. Mercari is a trademark of its owner.
What if a code doesn't arrive?
Request a new code, then check your inbox and notification settings. If it keeps failing, contact us and we'll look into it.
Ready for Mercari codes?
Join the waitlist and be among the first to get your U.S. mobile number.