India • NPA 8366
☎️ Central Office Exchange (NXX)
+91 (8366) 321 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +91 (8366) 321. Central office block assigned to Hubli, Karnataka, India.
Standard Subscriber Format
+91 (8366) 321-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
8366
Primary Location
Hubli, Karnataka
Service Type
Landline
📋 Central Office Exchange 321 Routing Details
The 321 exchange code (central office prefix) operates within the 8366 Numbering Plan Area (NPA) servicing Hubli, Karnataka, India. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +91 (8366) 321 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
08366 321-1234or local national format. -
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International Calls: Dial
+91 8366 321-1234from outside India. -
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E.164 Standard:
+918366321XXXX
📞 Nearby Exchanges in Area Code 8366
View All Area Code 8366 Exchanges ›❓ Frequently Asked Questions
What area code is +91 (8366) 321?
Phone numbers starting with +91 (8366) 321 belong to the 8366 area code in Hubli, Karnataka, India, routed via exchange block 321.
How do I call a 321 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +91, then 8366, and the subscriber number.
Which provider operates the 321 prefix in Hubli, Karnataka?
Telecom services for the 321 exchange block in Hubli, Karnataka are primarily assigned to Local Network Carrier for Landline connections.