Amazon asks for a phone number at almost every sensitive step: creating a buyer account, enabling two-step verification, confirming logins from new devices, and — most demanding of all — registering as a seller. A virtual number from Get-SMS receives Amazon's OTP codes so you can keep shopping profiles, regional accounts and seller projects separate from your personal SIM.
For buyer accounts any of our pools works: enter the number, receive the 6-digit OTP, done. If Amazon says the number is already associated with an account, cancel it free of charge and take a fresh one. Regional marketplaces (amazon.com, .co.uk, .de and others) share one account system, so the number's country doesn't lock you to a specific store.
Seller registration is a different beast: Amazon re-sends OTPs at several stages of identity verification, and continues to challenge logins with SMS long after signup. A one-time activation number covers a buyer account fine, but for Seller Central we strongly recommend renting a number for 30 days — you'll receive every follow-up code on the same number through the whole KYC process. Switching the account to an authenticator app after onboarding is a good final step; after that the phone is needed only as a fallback.
Buyers should also keep sessions in mind: Amazon rarely re-asks for SMS on a device it already knows, so stay signed in on your main browser. If you shop across regional stores, one verified account covers them all — no need for a separate number per marketplace.