Mexico • NPA 676
☎️ Central Office Exchange (NXX)
+52 (676) 640 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +52 (676) 640. Central office block assigned to Durango, Mexico.
Standard Subscriber Format
+52 (676) 640-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
676
Primary Location
Durango
Service Type
Landline
📋 Central Office Exchange 640 Routing Details
The 640 exchange code (central office prefix) operates within the 676 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 (676) 640 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
0676 640-1234or local national format. -
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International Calls: Dial
+52 676 640-1234from outside Mexico. -
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E.164 Standard:
+52676640XXXX
📞 Nearby Exchanges in Area Code 676
View All Area Code 676 Exchanges ›❓ Frequently Asked Questions
What area code is +52 (676) 640?
Phone numbers starting with +52 (676) 640 belong to the 676 area code in Durango, Mexico, routed via exchange block 640.
How do I call a 640 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 676, and the subscriber number.
Which provider operates the 640 prefix in Durango?
Telecom services for the 640 exchange block in Durango are primarily assigned to Local Network Carrier for Landline connections.