Mexico • NPA 649
☎️ Central Office Exchange (NXX)
+52 (649) 640 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +52 (649) 640. Central office block assigned to Chihuahua/Durango, Mexico.
Standard Subscriber Format
+52 (649) 640-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
649
Primary Location
Chihuahua/Durango
Service Type
Landline
📋 Central Office Exchange 640 Routing Details
The 640 exchange code (central office prefix) operates within the 649 Numbering Plan Area (NPA) servicing Chihuahua/Durango, Mexico. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +52 (649) 640 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
-
•
Domestic Calls: Dial
0649 640-1234or local national format. -
•
International Calls: Dial
+52 649 640-1234from outside Mexico. -
•
E.164 Standard:
+52649640XXXX
📞 Nearby Exchanges in Area Code 649
View All Area Code 649 Exchanges ›❓ Frequently Asked Questions
What area code is +52 (649) 640?
Phone numbers starting with +52 (649) 640 belong to the 649 area code in Chihuahua/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 649, and the subscriber number.
Which provider operates the 640 prefix in Chihuahua/Durango?
Telecom services for the 640 exchange block in Chihuahua/Durango are primarily assigned to Local Network Carrier for Landline connections.