Spain • NPA 859
☎️ Central Office Exchange (NXX)
+34 (859) 340 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +34 (859) 340. Central office block assigned to Huelva, Spain.
Standard Subscriber Format
+34 (859) 340-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
859
Primary Location
Huelva
Service Type
Landline
📋 Central Office Exchange 340 Routing Details
The 340 exchange code (central office prefix) operates within the 859 Numbering Plan Area (NPA) servicing Huelva, Spain. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +34 (859) 340 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
0859 340-1234or local national format. -
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International Calls: Dial
+34 859 340-1234from outside Spain. -
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E.164 Standard:
+34859340XXXX
📞 Nearby Exchanges in Area Code 859
View All Area Code 859 Exchanges ›❓ Frequently Asked Questions
What area code is +34 (859) 340?
Phone numbers starting with +34 (859) 340 belong to the 859 area code in Huelva, Spain, routed via exchange block 340.
How do I call a 340 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 859, and the subscriber number.
Which provider operates the 340 prefix in Huelva?
Telecom services for the 340 exchange block in Huelva are primarily assigned to Local Network Carrier for Landline connections.