International calling code lookup
Identify common international calling codes and their country codes and time-zone ranges using local static mappings.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Phone number or code
Calling code result
Only static information proven by the prefix is returned.
Enter a phone number to see the result
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What this tool does
- Look up international phone prefixes.
- Check country codes for common calling codes.
- View coarse time-zone ranges offline.
Example
Input
+1
Output
{
"callingCode": "+1",
"countries": "美国、加拿大 / United States, Canada",
"timezone": "UTC-5 to UTC-8",
"countryCode": "US,CA"
}A calling code may cover multiple countries or time zones; the static table reports the range without guessing a city.
Frequently asked questions
Can it identify a city?
No. A calling code does not prove a city, so only static country and time-zone ranges are returned.
Are spaces and hyphens supported?
Yes. Spaces, parentheses and hyphens are removed before matching.
Does +1 mean only the US?
No. +1 also covers Canada, so both are listed.
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