Area Code 120 – Ghaziabad/Dadri, Uttar Pradesh
The phone area code for Ghaziabad/Dadri, Uttar Pradesh is 120 (international format +91120). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 120
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Ghaziabad/Dadri, Uttar Pradesh
Geographic Coverage and Administrative Jurisdiction
The +91 120 area code is a geographic National Destination Code (NDC) assigned to the Ghaziabad-Dadri telephony region in the state of Uttar Pradesh, India. This numbering area encompasses the industrial and residential corridors of Ghaziabad district, including the city of Ghaziabad itself, the planned township of Noida (New Okhla Industrial Development Authority), and the satellite town of Greater Noida, as well as Dadri in Gautam Buddha Nagar district. The region is part of the National Capital Region (NCR) and serves as a major hub for IT, manufacturing, and logistics. The administrative jurisdiction for numbering plan management falls under the Department of Telecommunications (DoT), Government of India.
Dialing Formats and Caller Instructions
For local callers within the Ghaziabad-Dadri area, the standard local dialing format requires only the 8-digit subscriber number to be dialed, without the area code. For example, to reach a landline number 12345678 from within the same area, dial 12345678. However, when calling from outside the area code but still within India, callers must dial the trunk prefix 0, followed by the area code and subscriber number: 0-120-12345678. For international callers, the format is the country code for India (+91), followed by the area code (without the leading zero) and the subscriber number: +91-120-12345678. It is important to note that the area code is an essential part of the national numbering plan and must be included when dialing from mobile phones, as mobile networks route calls based on the full E.164 number.
Overlay Considerations and Numbering Plan
Currently, the 120 area code does not have an overlay code; it serves as a standalone geographic code for the region. Subscriber numbers in this area are typically 8 digits long, and the total length of a national significant number (NSN) is 10 digits (excluding the trunk prefix). The numbering plan follows the ITU-T E.164 recommendation, ensuring international dialing compatibility. As the NCR region continues to grow, there is potential for future numbering changes, but as of now, no overlay has been introduced.
Practical Examples for Callers
- Local call (within Ghaziabad): Dial 12345678.
- National call (from Mumbai): Dial 0-120-12345678.
- International call (from USA): Dial 011-91-120-12345678 (or +91-120-12345678 on mobile).
Understanding these dialing protocols ensures seamless connectivity for both residents and businesses operating in this economically vital region.