Mexico • NPA 775
☎️ Central Office Exchange (NXX)
+52 (775) 636 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +52 (775) 636. Central office block assigned to Tulancingo, HGO, Mexico.
Standard Subscriber Format
+52 (775) 636-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
775
Primary Location
Tulancingo, HGO
Service Type
Landline
📋 Central Office Exchange 636 Routing Details
The 636 exchange code (central office prefix) operates within the 775 Numbering Plan Area (NPA) servicing Tulancingo, HGO, Mexico. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +52 (775) 636 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
0775 636-1234or local national format. -
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International Calls: Dial
+52 775 636-1234from outside Mexico. -
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E.164 Standard:
+52775636XXXX
📞 Nearby Exchanges in Area Code 775
View All Area Code 775 Exchanges ›❓ Frequently Asked Questions
What area code is +52 (775) 636?
Phone numbers starting with +52 (775) 636 belong to the 775 area code in Tulancingo, HGO, Mexico, routed via exchange block 636.
How do I call a 636 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 775, and the subscriber number.
Which provider operates the 636 prefix in Tulancingo, HGO?
Telecom services for the 636 exchange block in Tulancingo, HGO are primarily assigned to Local Network Carrier for Landline connections.