Accepted Here answers one narrow question: which phone numbers apps accept at sign-up, and what their verification messages mean. This page explains where that information comes from and how we keep it in check.
Where the facts come from
Every claim about a specific app comes from that app’s own help center or published policy. Background on phone lines, verification codes and number reuse comes from regulators and standards bodies such as the FCC, the FTC, NIST, CISA and the Australian ACMA, plus reference sources like Wikipedia for definitions. Each page links to the sources it relies on, so you can read the original wording yourself.
When an app does not document something, such as how it decides a number’s line type, we say so instead of guessing.
How we describe numbers
Our position is the same on every page. Mobile numbers from the US and Australia that are not VoIP work with all services. A virtual number is accepted when carriers classify it as a mobile line. Online VoIP numbers and the shared numbers listed on public receive-SMS sites are often refused. App pages apply that position to each service’s own rules.
What “Verified” means
The date at the top of each page shows when its facts were last checked against the linked sources. When an app changes its help pages or its sign-up flow, the page is reviewed and the date moves.
What we don’t do
We don’t run accounts or test numbers ourselves, and we don’t publish ways to get around verification, bans or account limits. Error messages are quoted only when the app publishes their exact wording.
Spotted a mistake?
Rules change, and help pages get rewritten. If something on this site no longer matches what you see, write to hello@onlinesmsbox.net with the page address and what changed. We check the report against the source and update the page.