Mexico • NPA 921 ☎️ Central Office Exchange (NXX)

+52 (921) 521 Exchange Code

Technical registry directory for telephone subscriber numbers starting with +52 (921) 521. Central office block assigned to Coatzacoalcos/Ixhuatlan Del Sureste, VER, Mexico.

Standard Subscriber Format

+52 (921) 521-XXXX

Telecom Carrier Local Network Carrier

Area Code (NPA) 921

Primary Location Coatzacoalcos/Ixhuatlan Del Sureste, VER

Service Type Landline

📋 Central Office Exchange 521 Routing Details

The 521 exchange code (central office prefix) operates within the 921 Numbering Plan Area (NPA) servicing Coatzacoalcos/Ixhuatlan Del Sureste, VER, Mexico. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.

Telecommunication services within the +52 (921) 521 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.

🌐 Dialing Instructions

• Domestic Calls: Dial 0921 521-1234 or local national format.
• International Calls: Dial +52 921 521-1234 from outside Mexico.
• E.164 Standard: +52921521XXXX

📞 Nearby Exchanges in Area Code 921

View All Area Code 921 Exchanges ›

(921) 724 (921) 893 (921) 911 (921) 344 (921) 861 (921) 652 (921) 607 (921) 515 (921) 584 (921) 557 (921) 824 (921) 243 (921) 388 (921) 213 (921) 723 (921) 850

❓ Frequently Asked Questions

What area code is +52 (921) 521?

Phone numbers starting with +52 (921) 521 belong to the 921 area code in Coatzacoalcos/Ixhuatlan Del Sureste, VER, Mexico, routed via exchange block 521.

How do I call a 521 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 921, and the subscriber number.

Which provider operates the 521 prefix in Coatzacoalcos/Ixhuatlan Del Sureste, VER?

Telecom services for the 521 exchange block in Coatzacoalcos/Ixhuatlan Del Sureste, VER are primarily assigned to Local Network Carrier for Landline connections.