Spain • NPA 821
☎️ Central Office Exchange (NXX)
+34 (821) 663 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +34 (821) 663. Central office block assigned to Segovia, Spain.
Standard Subscriber Format
+34 (821) 663-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
821
Primary Location
Segovia
Service Type
Landline
📋 Central Office Exchange 663 Routing Details
The 663 exchange code (central office prefix) operates within the 821 Numbering Plan Area (NPA) servicing Segovia, Spain. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +34 (821) 663 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
0821 663-1234or local national format. -
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International Calls: Dial
+34 821 663-1234from outside Spain. -
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E.164 Standard:
+34821663XXXX
📞 Nearby Exchanges in Area Code 821
View All Area Code 821 Exchanges ›❓ Frequently Asked Questions
What area code is +34 (821) 663?
Phone numbers starting with +34 (821) 663 belong to the 821 area code in Segovia, Spain, routed via exchange block 663.
How do I call a 663 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 821, and the subscriber number.
Which provider operates the 663 prefix in Segovia?
Telecom services for the 663 exchange block in Segovia are primarily assigned to Local Network Carrier for Landline connections.