033904 area code — Bioko
In Equatorial Guinea, the area code 033904 covers Bioko. Numbers are written internationally as +240 33904.
How to call Bioko
- From abroad
- +240 33904 XXX XXXX
- Within Equatorial Guinea
- 033904 XXX XXXX
- Country calling code
- +240
About the 033904 area code
When you see a number beginning +240 33904, it belongs to Bioko: the 240 is Equatorial Guinea's country calling code and 33904 is the area code.
Area codes like 033904 tie a phone number to a place — useful for knowing where a call or message originates, and for signing up to services that expect a local Equatorial Guinea number. To actually receive an SMS on a Equatorial Guinea number, a temporary or virtual line does the job without exposing your own SIM.
Frequently asked questions
What area code is Bioko?
Bioko uses the area code 033904, written internationally as +240 33904.
How do I call Bioko from another country?
Dial your international access code, then +240 33904, then the local number — dropping the national leading 0.
What time is it in Bioko?
Bioko is in the Africa/Malabo time zone; the live clock above shows the current local time.
Is 033904 a mobile or a landline code?
033904 is a geographic (landline) area code for Bioko. Mobile numbers in Equatorial Guinea use their own separate prefixes.