China • NPA 994
☎️ Central Office Exchange (NXX)
+86 (994) 644 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (994) 644. Central office block assigned to Changji, Xinjiang, China.
Standard Subscriber Format
+86 (994) 644-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
994
Primary Location
Changji, Xinjiang
Service Type
Landline
📋 Central Office Exchange 644 Routing Details
The 644 exchange code (central office prefix) operates within the 994 Numbering Plan Area (NPA) servicing Changji, Xinjiang, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (994) 644 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
0994 644-1234or local national format. -
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International Calls: Dial
+86 994 644-1234from outside China. -
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E.164 Standard:
+86994644XXXX
📞 Nearby Exchanges in Area Code 994
View All Area Code 994 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (994) 644?
Phone numbers starting with +86 (994) 644 belong to the 994 area code in Changji, Xinjiang, China, routed via exchange block 644.
How do I call a 644 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 994, and the subscriber number.
Which provider operates the 644 prefix in Changji, Xinjiang?
Telecom services for the 644 exchange block in Changji, Xinjiang are primarily assigned to Local Network Carrier for Landline connections.