The phone code 509 at the beginning of the phone number +509 (subscriber’s phone) means that you are being called from Haiti or you are calling a subscriber registered in Haiti.
+509 — Haiti
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Telephone Code +509 — what country it is
The international phone code +509 officially belongs to Haiti, so all phone numbers that start with these numbers refer to this country.
It means that you must enter “509″ after the “+” sign to call to Haiti. Then the next digits of the phone number can be entered.
Whose country code is +509?
+509 is the beginning of a phone number which can belong to any subscriber who purchased a SIM card in Haiti. It does not mean that a subscriber is definitely there at the time of the call (since he or she can make a call in roaming), but there is such a possibility.