China • NPA 663
☎️ Central Office Exchange (NXX)
+86 (663) 554 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (663) 554. Central office block assigned to Jieyang, Guangdong, China.
Standard Subscriber Format
+86 (663) 554-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
663
Primary Location
Jieyang, Guangdong
Service Type
Landline
📋 Central Office Exchange 554 Routing Details
The 554 exchange code (central office prefix) operates within the 663 Numbering Plan Area (NPA) servicing Jieyang, Guangdong, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (663) 554 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
0663 554-1234or local national format. -
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International Calls: Dial
+86 663 554-1234from outside China. -
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E.164 Standard:
+86663554XXXX
📞 Nearby Exchanges in Area Code 663
View All Area Code 663 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (663) 554?
Phone numbers starting with +86 (663) 554 belong to the 663 area code in Jieyang, Guangdong, China, routed via exchange block 554.
How do I call a 554 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 663, and the subscriber number.
Which provider operates the 554 prefix in Jieyang, Guangdong?
Telecom services for the 554 exchange block in Jieyang, Guangdong are primarily assigned to Local Network Carrier for Landline connections.