Spain • NPA 964
☎️ Central Office Exchange (NXX)
+34 (964) 434 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +34 (964) 434. Central office block assigned to Castellón, Spain.
Standard Subscriber Format
+34 (964) 434-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
964
Primary Location
Castellón
Service Type
Landline
📋 Central Office Exchange 434 Routing Details
The 434 exchange code (central office prefix) operates within the 964 Numbering Plan Area (NPA) servicing Castellón, Spain. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +34 (964) 434 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
0964 434-1234or local national format. -
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International Calls: Dial
+34 964 434-1234from outside Spain. -
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E.164 Standard:
+34964434XXXX
📞 Nearby Exchanges in Area Code 964
View All Area Code 964 Exchanges ›❓ Frequently Asked Questions
What area code is +34 (964) 434?
Phone numbers starting with +34 (964) 434 belong to the 964 area code in Castellón, Spain, routed via exchange block 434.
How do I call a 434 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +34, then 964, and the subscriber number.
Which provider operates the 434 prefix in Castellón?
Telecom services for the 434 exchange block in Castellón are primarily assigned to Local Network Carrier for Landline connections.