China • NPA 756
☎️ Central Office Exchange (NXX)
+86 (756) 503 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (756) 503. Central office block assigned to Zhuhai, Guangdong, China.
Standard Subscriber Format
+86 (756) 503-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
756
Primary Location
Zhuhai, Guangdong
Service Type
Landline
📋 Central Office Exchange 503 Routing Details
The 503 exchange code (central office prefix) operates within the 756 Numbering Plan Area (NPA) servicing Zhuhai, Guangdong, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (756) 503 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
0756 503-1234or local national format. -
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International Calls: Dial
+86 756 503-1234from outside China. -
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E.164 Standard:
+86756503XXXX
📞 Nearby Exchanges in Area Code 756
View All Area Code 756 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (756) 503?
Phone numbers starting with +86 (756) 503 belong to the 756 area code in Zhuhai, Guangdong, China, routed via exchange block 503.
How do I call a 503 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 756, and the subscriber number.
Which provider operates the 503 prefix in Zhuhai, Guangdong?
Telecom services for the 503 exchange block in Zhuhai, Guangdong are primarily assigned to Local Network Carrier for Landline connections.