Spain • NPA 81
☎️ Central Office Exchange (NXX)
+34 (81) 943 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +34 (81) 943. Central office block assigned to Madrid, Spain.
Standard Subscriber Format
+34 (81) 943-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
81
Primary Location
Madrid
Service Type
Landline
📋 Central Office Exchange 943 Routing Details
The 943 exchange code (central office prefix) operates within the 81 Numbering Plan Area (NPA) servicing Madrid, Spain. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +34 (81) 943 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
081 943-1234or local national format. -
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International Calls: Dial
+34 81 943-1234from outside Spain. -
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E.164 Standard:
+3481943XXXX
📞 Nearby Exchanges in Area Code 81
View All Area Code 81 Exchanges ›❓ Frequently Asked Questions
What area code is +34 (81) 943?
Phone numbers starting with +34 (81) 943 belong to the 81 area code in Madrid, Spain, routed via exchange block 943.
How do I call a 943 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 81, and the subscriber number.
Which provider operates the 943 prefix in Madrid?
Telecom services for the 943 exchange block in Madrid are primarily assigned to Local Network Carrier for Landline connections.