You sourced a number off a CV, a signature, or a scraped profile, and before you burn a call slot or a WhatsApp message on it, you want to know two things: is it even a real number, and is it a mobile you can text or a landline you can’t. This tool answers both locally, in your browser, the moment you paste.
Drop in an international number like +41 79 962 41 92, or a local one like 0799624192 with the country picker set to Switzerland. You get back the verdict — valid or not — plus the region, the line type (mobile, landline, or VOIP), and the canonical E.164 form +41799624192. That E.164 string is the one to copy into your ATS or CRM. Local formats look fine until you re-import a list across countries and half your numbers silently break.
One honest limit: this checks shape and structure, not whether the line is live. A number can be perfectly valid and still be disconnected — validation tells you it could exist, not that someone picks up. The line-type read also leans on numbering ranges, so a ported mobile can occasionally show as a landline. Treat it as a strong filter to drop the obvious junk before you dial, not as proof of a working line.