India • NPA 129
☎️ Central Office Exchange (NXX)
+91 (129) 378 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +91 (129) 378. Central office block assigned to Faridabad, Haryana, India.
Standard Subscriber Format
+91 (129) 378-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
129
Primary Location
Faridabad, Haryana
Service Type
Landline
📋 Central Office Exchange 378 Routing Details
The 378 exchange code (central office prefix) operates within the 129 Numbering Plan Area (NPA) servicing Faridabad, Haryana, India. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +91 (129) 378 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
0129 378-1234or local national format. -
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International Calls: Dial
+91 129 378-1234from outside India. -
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E.164 Standard:
+91129378XXXX
📞 Nearby Exchanges in Area Code 129
View All Area Code 129 Exchanges ›❓ Frequently Asked Questions
What area code is +91 (129) 378?
Phone numbers starting with +91 (129) 378 belong to the 129 area code in Faridabad, Haryana, India, routed via exchange block 378.
How do I call a 378 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 129, and the subscriber number.
Which provider operates the 378 prefix in Faridabad, Haryana?
Telecom services for the 378 exchange block in Faridabad, Haryana are primarily assigned to Local Network Carrier for Landline connections.