Netherlands • NPA 223
☎️ Central Office Exchange (NXX)
+31 (223) 228 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +31 (223) 228. Central office block assigned to Den Helder, Netherlands.
Standard Subscriber Format
+31 (223) 228-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
223
Primary Location
Den Helder
Service Type
Landline
📋 Central Office Exchange 228 Routing Details
The 228 exchange code (central office prefix) operates within the 223 Numbering Plan Area (NPA) servicing Den Helder, Netherlands. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +31 (223) 228 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
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Domestic Calls: Dial
0223 228-1234or local national format. -
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International Calls: Dial
+31 223 228-1234from outside Netherlands. -
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E.164 Standard:
+31223228XXXX
📞 Nearby Exchanges in Area Code 223
View All Area Code 223 Exchanges ›❓ Frequently Asked Questions
What area code is +31 (223) 228?
Phone numbers starting with +31 (223) 228 belong to the 223 area code in Den Helder, Netherlands, routed via exchange block 228.
How do I call a 228 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +31, then 223, and the subscriber number.
Which provider operates the 228 prefix in Den Helder?
Telecom services for the 228 exchange block in Den Helder are primarily assigned to Local Network Carrier for Landline connections.