This is the telephone area code for the city of Haarlem and several municipalities in the Kennemerland region of North Holland.
How to Call Haarlem from Overseas
- Dial your country's exit code (International Access Code)
- Dial 31 (Netherlands country code)
- Dial the area code (23 - without the leading 0)
- Dial the local phone number
Example: Calling Haarlem from Canada
011 31 23 511 5115
Where:
011 = Canada exit code
31 = Netherlands country code
23 = Haarlem area code (023 without the 0)
511 5115 = Local Haarlem phone number
Quick Facts
Haarlem Area Code Coverage
The 023 area code serves the following towns and municipalities in North Holland:
Haarlem
Historic Center, Grote Markt, Frans Hals Museum district
Heemstede
Residential areas south of Haarlem
Zandvoort
Coastal resort area and the Zandvoort Circuit
Bloemendaal
Residential areas and coastal dunes
Hoofddorp
Largest town in the Haarlemmermeer municipality
IJmuiden
Port city and industrial areas (shared with 0255)
Major Netherlands Area Codes
Common Exit Codes for Calling Netherlands
When calling Haarlem from these countries, use these exit codes:
United States
011
United Kingdom
00
Germany
00
Spain
00
India
00
Singapore
001