What city does the area code 645 belong to in Pakistan?

The area code 645 belongs to Dera Ghazi Khan, a city in the Punjab province of Pakistan. It covers the city and its surrounding district.

How do I call a Dera Ghazi Khan number from another country?

To call a Dera Ghazi Khan number from abroad, dial your country's exit code, then Pakistan's country code +92, then the area code 645 (without the leading 0), followed by the 7-digit subscriber number. For example, +92 645 1234567.

Is the 645 area code a mobile or landline prefix?

The 645 area code is a geographic landline prefix assigned to fixed-line telephone services in Dera Ghazi Khan. Mobile numbers in Pakistan have different prefixes starting with 3 (e.g., 300, 301).

Do I need to dial 0 before 645 when calling from another city in Pakistan?

Yes, when calling from another city within Pakistan, you must dial the trunk prefix 0 before the area code. So you would dial 0 645 followed by the subscriber number.

Are there any plans to introduce an overlay code for 645?

As of now, there are no official announcements regarding an overlay for the 645 area code. The Pakistan Telecommunication Authority (PTA) will inform the public if any changes occur.

Area Code 645 (Pakistan) - Prefix Details & Exchanges

Geographic Overview

The +92 645 area code is assigned to Dera Ghazi Khan (DG Khan), a major city in the Punjab province of Pakistan. It serves as the administrative headquarters of the Dera Ghazi Khan Division and District. The code covers the city itself and surrounding areas, including satellite towns and rural communities within the district. DG Khan is strategically located on the western bank of the Indus River, acting as a gateway between Punjab and Balochistan provinces.

Dialing Formats

For international callers, the full number is dialed as +92 645 XXX XXX (where X represents the subscriber's local number). Within Pakistan, callers from other cities must dial 0 645 XXX XXX. Local calls within the same area code can be made using just the seven-digit subscriber number (XXX XXX).

Numbering Structure

Subscriber numbers in the DG Khan area are seven digits long, making the total national significant number (NSN) ten digits when including the leading trunk prefix '0'. The area code 645 is a geographic code, meaning it is tied to a physical location. However, with the rise of VoIP and mobile telephony, calls to this code may terminate on any network, but the numbering resource remains allocated to the fixed-line operators in the region.

Administrative and Economic Context

Dera Ghazi Khan is an important commercial and agricultural hub. Key industries include cotton ginning, textile manufacturing, and food processing. The city is also known for its proximity to the historic Derawar Fort and the Cholistan Desert. The area code serves both residential and business customers, including government offices, educational institutions, and healthcare facilities.

Overlay and Future Considerations

As of the latest updates, there is no overlay code for 645, meaning it remains the sole geographic code for the region. The Pakistan Telecommunication Authority (PTA) manages numbering resources, and any changes would be announced officially. For now, callers should continue using the existing format.

Practical Guidance

When calling a DG Khan number from abroad, always replace the trunk prefix '0' with the country code '+92'. For example, a local number 1234567 would be dialed as +92 645 1234567 internationally, and 0645 1234567 from other parts of Pakistan. Ensure you have the correct number of digits after the area code; if you encounter a number with fewer digits, it may be an older format or a different service.

Area Code 645 – Dera Ghazi Khan

📍 Geographic Location of Dera Ghazi Khan