Pick a country on SMSOTPS, enter the number where Apple asks for a phone number, and read the code in your dashboard. That code finishes this one verification - it does not make the number yours. Apple keeps sending future codes to the trusted number on file, so use a number you control for accounts you keep.
How Apple actually uses your phone number
Apple's two-factor authentication needs at least one trusted phone number on file - a number where you can receive verification codes (Apple Support, read 2026-11-07). That number sits on your Apple Account alongside your trusted devices.
Here is what most pages get wrong about delivery. When you sign in on a new device or browser, the six-digit code appears automatically on your trusted devices first. A text message or phone call to your trusted number is the fallback, and it only starts when you tap "Didn't Get a Code?" or "Can't get to your devices?" on the code screen (Apple Support, read 2026-11-07).
So a missing SMS often means the code went somewhere else - to a device already signed in - not that the number failed.
Why your Apple code sometimes never arrives
First check: did the code appear on a trusted device instead? Apple shows it there before any text is sent. Second: if you filter unknown senders in Messages, Apple's text can land there - Apple tells you to check that filter.
About number types: you will read that Apple bans VoIP numbers. The Apple support pages linked here explain trusted-number setup; they do not guarantee acceptance of a particular number. The honest line is that Apple decides per number, per attempt - and no seller can promise acceptance.
If nothing arrives, request the code once and follow the instructions Apple shows on screen rather than requesting again and again.
The catch with a one-time number
The number you verify with stays on file as your trusted number. Every later sign-in on a new device, every password reset, every recovery sends its code there.
If you lose access to your trusted devices and your trusted number, Apple offers account recovery - but it warns that recovery might take a few days or longer, and that contacting Apple cannot speed it up.
So decide before you order. For an Apple Account that holds your photos, purchases, and backups, use a number you control permanently - you can add or change trusted phone numbers in your account settings later. A one-time number fits a verification you can walk away from.
How ordering works on SMSOTPS
Pick a service and country, and the live price and stock load when you choose. Paste the number where Apple asks for it, request the code once, and read it on your dashboard. One code completes the order. See the how-to-buy guide and live prices.
If no code arrives, you can cancel the order yourself between 2 and 20 minutes after purchase, as long as no code has arrived. If the number expires without a code, the charge is refunded automatically. Once a code arrives, the order is complete.
Stuck? Email support@smsotps.com or Telegram @sms_otpsbot. The FAQ has the details.