Calling Formosa from Abroad
+54+370+subscriber number
For a fixed line, remove the domestic 0 before +54. For a mobile from abroad, use +54 9 + area code + local number and omit both the domestic 0 and the domestic mobile prefix 15.
🇦🇷 Formosa Province city guideFormosa Area Code in Argentina
Formosa Area Code in Argentina
and Calling Guide
Formosa uses current area code 0370; older references to 03717 are obsolete.
Featured domestic code0370
Country: +54Formosa Province
Local dialing reference
Formosa Area Code
Use the complete subscriber number and confirm the destination before calling.
Local Calling Time
Argentina Time (ART), UTC−3 year-round
America/Argentina/Buenos_Aires: Calculated in your browser
Always confirm the recipient’s local time, especially where daylight-saving rules or regional zones differ.
What the City Association Means
Formosa uses current area code 0370; older references to 03717 are obsolete.
An area code identifies an ENACOM local numbering area, not an exact address. The code alone does not reveal a subscriber or guarantee the current carrier. Fixed and mobile numbers use different international formats, so the +54 9 mobile rule must be checked before calling a mobile.
Formosa Province
Browse other featured cities and codes in the same administrative grouping.
Open Formosa Province guideCommon questions
Formosa Phone Code FAQ
What is the area code for Formosa?
Formosa is associated with 0370 in the featured fixed-line directory.
What country code is used for Formosa?
Formosa is in Argentina, which uses country calling code +54.
Can the code prove a caller is in Formosa?
No. Numbering association is not live geolocation, and portability, forwarding or internet telephony can change where a call is received.