Dial code
+1
To call United States, dial +, then 1 (the country code for United States), then the area code (without the initial 1) and the local number.
International call
+ 1 201 1234567
Local call
1201 1234567
For local calls within United States, start with the area code (with the initial 1). In the case above area code is 201 .
Data
BasicStartupBusiness
Calling, exit and trunk codes for the country.
Refresh frequency
Monthly
Sourced
In-house
Developer documentation
Dial code category is available in production API version 2.