Area Code 512 – Islamabad/Rawalpindi

Geographic Coverage and Administrative Jurisdiction

The area code 512 is a geographic National Destination Code (NDC) within the Pakistan numbering plan, administered under the country calling code +92. It serves the twin cities of Islamabad and Rawalpindi, along with their surrounding suburban and peri-urban areas. This code is allocated to the Islamabad/Rawalpindi telephone district, which is a major administrative and military hub in Pakistan. The region includes the federal capital territory of Islamabad and the adjacent Rawalpindi district in the Punjab province. Key cities and towns covered by this code include Islamabad (the capital), Rawalpindi, and satellite towns such as Wah Cantonment and Taxila, which are part of the wider Rawalpindi division.

Dialing Formats and Number Structure

Subscriber numbers within the 512 area code are seven digits long, resulting in a total national significant number (NSN) of ten digits when combined with the area code. The complete international dialing format for a landline in this region is:

• International format: +92 512 XXX XXXX
• National format (from within Pakistan): 0512 XXX XXXX
• Local format (within the same area code): XXX XXXX (often dialed without the area code, though 7-digit dialing is standard)

For example, a typical Islamabad/Rawalpindi number might be +92 512 345 6789. When calling from another country, you must replace the leading zero of the national prefix with the international access code (e.g., 00 from most countries) followed by 92, then dial 512 and the seven-digit subscriber number.

Caller Instructions

• Local callers (within Islamabad/Rawalpindi): Dial the seven-digit subscriber number directly. The area code is not required for calls within the same geographic charging group.
• National callers (from other cities in Pakistan): Dial 0 (trunk prefix) followed by 512 and the seven-digit number. Example: 0512 345 6789.
• International callers: Dial your country's exit code (e.g., 011 from the US, 00 from most European countries) followed by 92 (Pakistan's country code), then 512 and the seven-digit number. Do not dial the trunk prefix 0.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 national numbering plan updates, the 512 area code does not have an overlay code. The region is served exclusively by 512 for fixed-line services. However, due to the rapid growth of telecommunications in the capital area, there have been discussions about introducing additional numbering resources. It is important to note that mobile numbers in Pakistan are non-geographic and begin with 3 (e.g., 0300, 0321), so they are not affected by this area code. Fixed-line numbers under 512 are primarily used by Pakistan Telecommunication Company Limited (PTCL) and other licensed fixed-line operators. When dialing from abroad, ensure you have the correct country code and omit the leading zero of the area code to avoid call routing errors.