Mexico • NPA 48
☎️ Central Office Exchange (NXX)
+52 (48) 397 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +52 (48) 397. Central office block assigned to San Luis Potosi, Mexico.
Standard Subscriber Format
+52 (48) 397-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
48
Primary Location
San Luis Potosi
Service Type
Landline
📋 Central Office Exchange 397 Routing Details
The 397 exchange code (central office prefix) operates within the 48 Numbering Plan Area (NPA) servicing San Luis Potosi, Mexico. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +52 (48) 397 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
048 397-1234or local national format. -
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International Calls: Dial
+52 48 397-1234from outside Mexico. -
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E.164 Standard:
+5248397XXXX
📞 Nearby Exchanges in Area Code 48
View All Area Code 48 Exchanges ›❓ Frequently Asked Questions
What area code is +52 (48) 397?
Phone numbers starting with +52 (48) 397 belong to the 48 area code in San Luis Potosi, Mexico, routed via exchange block 397.
How do I call a 397 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 48, and the subscriber number.
Which provider operates the 397 prefix in San Luis Potosi?
Telecom services for the 397 exchange block in San Luis Potosi are primarily assigned to Local Network Carrier for Landline connections.