China • NPA 477
☎️ Central Office Exchange (NXX)
+86 (477) 771 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (477) 771. Central office block assigned to Dongsheng, Inner Mongolia, China.
Standard Subscriber Format
+86 (477) 771-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
477
Primary Location
Dongsheng, Inner Mongolia
Service Type
Landline
📋 Central Office Exchange 771 Routing Details
The 771 exchange code (central office prefix) operates within the 477 Numbering Plan Area (NPA) servicing Dongsheng, Inner Mongolia, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (477) 771 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
0477 771-1234or local national format. -
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International Calls: Dial
+86 477 771-1234from outside China. -
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E.164 Standard:
+86477771XXXX
📞 Nearby Exchanges in Area Code 477
View All Area Code 477 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (477) 771?
Phone numbers starting with +86 (477) 771 belong to the 477 area code in Dongsheng, Inner Mongolia, China, routed via exchange block 771.
How do I call a 771 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +86, then 477, and the subscriber number.
Which provider operates the 771 prefix in Dongsheng, Inner Mongolia?
Telecom services for the 771 exchange block in Dongsheng, Inner Mongolia are primarily assigned to Local Network Carrier for Landline connections.