China • NPA 835
☎️ Central Office Exchange (NXX)
+86 (835) 663 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (835) 663. Central office block assigned to YaAn, Sichuan, China.
Standard Subscriber Format
+86 (835) 663-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
835
Primary Location
YaAn, Sichuan
Service Type
Landline
📋 Central Office Exchange 663 Routing Details
The 663 exchange code (central office prefix) operates within the 835 Numbering Plan Area (NPA) servicing YaAn, Sichuan, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (835) 663 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
0835 663-1234or local national format. -
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International Calls: Dial
+86 835 663-1234from outside China. -
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E.164 Standard:
+86835663XXXX
📞 Nearby Exchanges in Area Code 835
View All Area Code 835 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (835) 663?
Phone numbers starting with +86 (835) 663 belong to the 835 area code in YaAn, Sichuan, China, routed via exchange block 663.
How do I call a 663 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 835, and the subscriber number.
Which provider operates the 663 prefix in YaAn, Sichuan?
Telecom services for the 663 exchange block in YaAn, Sichuan are primarily assigned to Local Network Carrier for Landline connections.