Area Code Lookup
What Area Code Is Highland?
Area code 909 · California
Highland uses area code 909. It is located in California.
Area Code Serving Highland
Frequently Asked Questions
What area code is Highland?
Highland uses area code 909. It is located in California.
How do I call Highland from outside the US?
To call Highland from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-909-XXX-XXXX). The +1 is the country code for all NANPA countries.