23 Area Code
Haarlem · The Netherlands
Country code +31 · ISO NL
Example 23 Number
A sample number from this area code, formatted three ways.
| National | International | E.164 |
|---|---|---|
| 023 123 4567 | +31 23 123 4567 | +31231234567 |
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Pre-filled with a 23 sample number. Edit it and click "Try It" to see the parsed result.
Cities and Regions
Locations served by the 23 area code, according to Google's libphonenumber.
- · Haarlem
How to Dial The Netherlands Numbers
From abroad
Dial +31 followed by the national number, dropping any leading 0.
Within The Netherlands
Dial 0 before the local number to make a domestic call.
Dialing out of The Netherlands
Dial 00 followed by the destination country code and number.
Nearby The Netherlands Area Codes
Frequently Asked Questions
Where is the 23 area code?
└ The 23 area code covers Haarlem in The Netherlands.
How do I dial a 23 number?
└ From abroad, dial +31 23 followed by the local number. Within The Netherlands, dial 023 before the local number.