Netherlands • NPA 30
☎️ Central Office Exchange (NXX)
+31 (30) 573 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +31 (30) 573. Central office block assigned to Utrecht, Netherlands.
Standard Subscriber Format
+31 (30) 573-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
30
Primary Location
Utrecht
Service Type
Landline
📋 Central Office Exchange 573 Routing Details
The 573 exchange code (central office prefix) operates within the 30 Numbering Plan Area (NPA) servicing Utrecht, Netherlands. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +31 (30) 573 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
-
•
Domestic Calls: Dial
030 573-1234or local national format. -
•
International Calls: Dial
+31 30 573-1234from outside Netherlands. -
•
E.164 Standard:
+3130573XXXX
📞 Nearby Exchanges in Area Code 30
View All Area Code 30 Exchanges ›❓ Frequently Asked Questions
What area code is +31 (30) 573?
Phone numbers starting with +31 (30) 573 belong to the 30 area code in Utrecht, Netherlands, routed via exchange block 573.
How do I call a 573 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 30, and the subscriber number.
Which provider operates the 573 prefix in Utrecht?
Telecom services for the 573 exchange block in Utrecht are primarily assigned to Local Network Carrier for Landline connections.