China • NPA 355
☎️ Central Office Exchange (NXX)
+86 (355) 290 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +86 (355) 290. Central office block assigned to Changzhi, Shanxi, China.
Standard Subscriber Format
+86 (355) 290-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
355
Primary Location
Changzhi, Shanxi
Service Type
Landline
📋 Central Office Exchange 290 Routing Details
The 290 exchange code (central office prefix) operates within the 355 Numbering Plan Area (NPA) servicing Changzhi, Shanxi, China. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +86 (355) 290 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
0355 290-1234or local national format. -
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International Calls: Dial
+86 355 290-1234from outside China. -
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E.164 Standard:
+86355290XXXX
📞 Nearby Exchanges in Area Code 355
View All Area Code 355 Exchanges ›❓ Frequently Asked Questions
What area code is +86 (355) 290?
Phone numbers starting with +86 (355) 290 belong to the 355 area code in Changzhi, Shanxi, China, routed via exchange block 290.
How do I call a 290 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 355, and the subscriber number.
Which provider operates the 290 prefix in Changzhi, Shanxi?
Telecom services for the 290 exchange block in Changzhi, Shanxi are primarily assigned to Local Network Carrier for Landline connections.