Area Code 577 – Attock

Overview of Area Code +92 577

Area code 577 is a geographic National Destination Code (NDC) assigned to the Attock District in the Punjab province of Pakistan. It is part of the country's E.164 numbering plan, where the full international format is +92 577 XXX XXX. The code serves the city of Attock and its surrounding administrative subdivisions, including Attock Khurd, Attock Kalan, and nearby towns such as Hazro and Fateh Jang. As a geographic code, it is tied to a specific PSTN exchange area, and calls to this code are routed based on the physical location of the line.

Dialing Formats

Callers must use different formats depending on their origin:

• Within Pakistan (domestic): Dial 0 577 XXX XXX. The leading 0 is the trunk prefix used to access the national network.
• From outside Pakistan (international): Dial your country's exit code, then 92 577 XXX XXX. For example, from the US/Canada, dial 011 92 577 XXX XXX; from the UK, dial 00 92 577 XXX XXX.

Local numbers in Attock are seven digits long after the area code, making the total domestic length (excluding trunk prefix) 10 digits. When dialing locally within the same exchange, shorter dialing may be possible, but the full format is recommended for clarity.

Geographic Coverage and Administrative Context

Attock is a border district in northern Punjab, strategically located near the Khyber Pakhtunkhwa province and the federal capital Islamabad. The district is divided into several tehsils, and the 577 code covers the main urban centers and rural areas within its jurisdiction. The code is administered by the Pakistan Telecommunication Authority (PTA) and is allocated to fixed-line operators, including the state-owned Pakistan Telecommunication Company Limited (PTCL) and other licensed local loop operators.

Overlay and Numbering Considerations

As of the latest PTA numbering plan, there is no overlay code for Attock; 577 remains the sole geographic code for this region. However, subscribers may have migrated to VoIP or wireless local loop (WLL) services, which can affect routing and caller ID presentation. For international callers, it is essential to verify the correct number of digits, as mobile numbers in Pakistan have a different structure (starting with 3xx) and are not covered by this code.

Caller Instructions

• Local callers: If you are calling from another city in Pakistan, always include the trunk prefix 0 before the area code. For example, from Karachi, dial 0 577 XXX XXX.
• International callers: Drop the trunk prefix and use the country code 92. Ensure you have the correct exit code for your country.
• Emergency and special numbers: Do not use this code for emergency services; those have dedicated short codes in Pakistan.

Always confirm the number with the recipient, as number portability may allow a fixed-line number to be routed to a different operator, but the geographic code remains unchanged.