Mexico • NPA 674
☎️ Central Office Exchange (NXX)
+52 (674) 866 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +52 (674) 866. Central office block assigned to Durango, Mexico.
Standard Subscriber Format
+52 (674) 866-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
674
Primary Location
Durango
Service Type
Landline
📋 Central Office Exchange 866 Routing Details
The 866 exchange code (central office prefix) operates within the 674 Numbering Plan Area (NPA) servicing Durango, Mexico. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +52 (674) 866 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
0674 866-1234or local national format. -
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International Calls: Dial
+52 674 866-1234from outside Mexico. -
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E.164 Standard:
+52674866XXXX
📞 Nearby Exchanges in Area Code 674
View All Area Code 674 Exchanges ›❓ Frequently Asked Questions
What area code is +52 (674) 866?
Phone numbers starting with +52 (674) 866 belong to the 674 area code in Durango, Mexico, routed via exchange block 866.
How do I call a 866 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +52, then 674, and the subscriber number.
Which provider operates the 866 prefix in Durango?
Telecom services for the 866 exchange block in Durango are primarily assigned to Local Network Carrier for Landline connections.