ReserveSMS

Whatnot asks you to verify your phone number: what it’s for

Updated 5 November 2026 · The ReserveSMS team

In short

  • Whatnot requires every seller to verify a phone number, a payment method and a government ID.
  • A seller’s number is used for two-factor authentication and account recovery, so a number you keep is the safer choice there.
  • Buyers are verified another way: a past purchase, an ID check or a temporary payment hold, when a seller asks for verified buyers.

Whatnot asks for a phone number in a few places, and it means different things for sellers and for buyers.

Sellers: phone, payment method and ID

Whatnot’s help centre says every seller must verify a phone number, a payment method and a government-issued ID. You confirm the number with a one-time code, either when you sign up to sell or from the seller dashboard. Whatnot then uses that number for two-factor authentication, and to recover the account if it sees suspicious activity.

Buyers: verified buyer status

Sellers can choose to let only verified buyers bid or enter giveaways in a show. Whatnot counts you as verified if you’ve bought on Whatnot before, verified your identity, or approved a temporary payment authorisation, for example $10. Anyone can still watch the show. You can check your status in the app under Account, then Verified Buyer.

Changing the number

Sellers can change their phone number in account settings. Buyers ask Whatnot Support, from Account, then Contact Us in the app. Whatnot doesn’t offer phone support; it says replies through the app usually come within 48 hours.

Using a one-time number

A one-time number from ReserveSMS receives codes for 20 minutes and can’t receive any after that. For a seller account, where the number protects sign-ins and payouts, use a number you’ll keep. If you only need a code once and would rather keep your own number private, ours start at $1, and the money goes back to your balance if no code arrives. Get a number for Whatnot.

Common questions

What makes a Whatnot buyer “verified”?

A past purchase on Whatnot, a successful identity check, or approving a temporary payment authorisation, such as $10. Sellers can require verified buyers before you bid or enter a giveaway; you can still watch without it.

Why does Whatnot want a seller’s phone number?

For two-factor authentication, and to recover the account if Whatnot sees suspicious activity, according to its help centre. It’s required along with a payment method and a government ID.

How do I change my phone number on Whatnot?

Sellers can change it in account settings. Buyers ask Whatnot Support through Account, then Contact Us in the app.

Numbers for the apps in this guide

More guides

Getting prices

Loading prices…