API Format Phone
From Openprovider API documentation
Format specification > phone
Collection of data fields that contains the following members:
| Field | phone / fax | 
| countryCode (required) | |
  | Country code part of the phone number (including +) | 
| areaCode (required) | |
  | Area code part of the phone number (excluding leading zero) | 
| subscriberNumber (required) | |
  | Subscriber number part of the phone number |