Phone Number Validator
Check a number from any country before you call it: whether it is valid, mobile or landline, how to write it, and what it costs.
Check a phone number
Country
Or skip it: type the full number with its + code and the country is picked for you.
Type a number to check it
You will see if it is valid, whether it is a mobile or a landline, the right way to write it, and what it costs to call.
This checks the number follows the country’s numbering rules. It cannot tell whether the line is switched on or who it belongs to.
How to write a number that works from anywhere
Start with + and the country code
The + stands for "the international code of whatever phone you are on", so the number works from any country. It is +1 for the US and Canada, +44 for the UK.
202 555 0143 in the US+1 202 555 0143
Drop the 0 used inside the country
Many countries start local numbers with a 0 that is only for calls inside the country. Leave it out after the country code. Italy is the exception: its landline numbers keep the 0.
020 7946 0958 in the UK+44 20 7946 0958
Spaces and brackets do not matter
They are only there to make the number easier to read. Phones and the CallTuv dialer ignore them.
+1 (202) 555-0143+12025550143
What the number type tells you
- Landline
- A fixed line at a home, office or institution.
- Mobile
- A cell phone. In many countries calls to mobiles cost a little more than calls to landlines.
- Landline or mobile
- In the US, Canada and the rest of the +1 plan, both kinds of number look the same, so the digits cannot tell which it is.
- Toll-free
- Free for callers inside the country. With CallTuv, calling a US or Canadian one from abroad costs a normal per-minute rate.
Validator questions
What does "valid" mean here?
That the number fits the numbering rules of its country: the right country code, a range that is in use, and the right number of digits. It does not show whether the line is switched on or who it belongs to.
Can it tell a mobile from a landline?
In most countries, yes, because mobiles have their own number ranges. In the US, Canada and the rest of the +1 plan they share the same ranges, so it says "landline or mobile".
Do I need to type the + and the country code?
It is best to. Without them, the number is read as a number of the country you picked. With them, the number names its own country.
What is the format "for your contacts"?
It is the number with + and the country code and no spaces, known as E.164. Saved like that, a contact can be called from any country without changing anything.
Can I call a toll-free number from abroad?
CallTuv calls US and Canadian toll-free numbers such as 1-800 from any country, at a normal per-minute rate shown before you call.
Calling 1-800 numbers from abroadWhat does it cost to call the number?
The validator shows the per-minute price for that exact number, the same price the dialer charges. Some number ranges cost more than the usual rate for their country.
Where is the number checked?
The validity check runs in your browser. Only the price is looked up on CallTuv, the same way the dialer prices a number as you type it.
More free calling tools
- Call cost calculatorWhat a call costs, from live landline and mobile rates.
- Best time to call plannerWhen they are available and you are awake, in both clocks.
- How to call any countryCountry codes and dialing steps, country by country.
- Rates for every countryLive per-minute prices for landlines and mobiles.
The number checks out. Now call it.
Call landlines and mobiles abroad from your browser or the app, including the banks, airlines and offices that messaging apps cannot reach. Pay as you go, and see the price before every call.

