China • NPA 556
☎️ Central Office Exchange (NXX)
+86 (556) 277 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (556) 277. Central office block assigned to Anqing, Anhui, China.
Standard Subscriber Format
+86 (556) 277-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
556
Primary Location
Anqing, Anhui
Service Type
Landline
📋 Central Office Exchange 277 Routing Details
The 277 exchange code (central office prefix) operates within the 556 Numbering Plan Area (NPA) servicing Anqing, Anhui, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (556) 277 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
0556 277-1234or local national format. -
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International Calls: Dial
+86 556 277-1234from outside China. -
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E.164 Standard:
+86556277XXXX
📞 Nearby Exchanges in Area Code 556
View All Area Code 556 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (556) 277?
Phone numbers starting with +86 (556) 277 belong to the 556 area code in Anqing, Anhui, China, routed via exchange block 277.
How do I call a 277 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 556, and the subscriber number.
Which provider operates the 277 prefix in Anqing, Anhui?
Telecom services for the 277 exchange block in Anqing, Anhui are primarily assigned to Local Network Carrier for Landline connections.