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No code, no charge. Every route is measured, and failing routes are removed.

How we measure

Guides

Guides to SMS verification numbers

Short, practical answers about one-time verification numbers: how a code reaches a number, why some never arrive, and what a measured delivery rate does and does not tell you before you pay.

All guides

  1. Your verification code did not arrive: what to check, and what happens next

    A code that never arrives costs nothing here. What to check first, when to cancel, how the refund works and how to choose a route that delivers.

    Updated Read the guide

How these guides are written

Each guide takes one question people ask before or after buying a verification number, and answers it from what we see on real orders. They are written by the FastOTP team for this site, not adapted from a help centre or another seller's pages.

Where a guide states a rule of the site, the figure is read from the settings the site runs on, so it moves when they do. A route is rated only after 20 orders in the last 30 days, and one that stays under 80% for 7 days in a row is withdrawn. A guide never quotes a delivery rate we have not measured.

What they will not help with

They do not explain how to get around a service's rules or limits. A one-time number is for receiving a code on an account you are entitled to create. If a guide and the terms ever seem to disagree, the terms are what apply.

Where to find the figures

The delivery rate of each route, with the order count behind it, is on delivery performance. Live prices by service and country are on pricing, and everything on sale now is listed on all numbers.

Questions the guides do not cover are answered in help and FAQ. If something here is wrong or out of date, write to [email protected] and say which guide and which sentence: we correct it and the page shows when it was updated.