China • NPA 317
☎️ Central Office Exchange (NXX)
+86 (317) 646 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (317) 646. Central office block assigned to Cangzhou, Hebei, China.
Standard Subscriber Format
+86 (317) 646-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
317
Primary Location
Cangzhou, Hebei
Service Type
Landline
📋 Central Office Exchange 646 Routing Details
The 646 exchange code (central office prefix) operates within the 317 Numbering Plan Area (NPA) servicing Cangzhou, Hebei, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (317) 646 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
-
•
Domestic Calls: Dial
0317 646-1234or local national format. -
•
International Calls: Dial
+86 317 646-1234from outside China. -
•
E.164 Standard:
+86317646XXXX
📞 Nearby Exchanges in Area Code 317
View All Area Code 317 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (317) 646?
Phone numbers starting with +86 (317) 646 belong to the 317 area code in Cangzhou, Hebei, China, routed via exchange block 646.
How do I call a 646 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 317, and the subscriber number.
Which provider operates the 646 prefix in Cangzhou, Hebei?
Telecom services for the 646 exchange block in Cangzhou, Hebei are primarily assigned to Local Network Carrier for Landline connections.