Area Code 517 – Islamabad/Rawalpindi

Geographic Coverage and Administrative Jurisdiction

The +92 517 area code is a geographic National Destination Code (NDC) assigned to the Islamabad Capital Territory and the adjacent city of Rawalpindi in the Punjab province of Pakistan. This code serves the federal capital, including its diplomatic enclave, administrative sectors (e.g., G-9, F-8, I-10), and the twin city of Rawalpindi, which hosts the General Headquarters (GHQ) of the Pakistan Army. The numbering area covers a high-density corridor along the Islamabad-Rawalpindi metropolitan region, with a population exceeding 3 million. The code is administered by the Pakistan Telecommunication Authority (PTA) under the National Numbering Plan, which aligns with ITU-T E.164 recommendations.

Dialing Formats and Caller Instructions

For domestic callers within Pakistan, the trunk prefix '0' is used before the area code, followed by the subscriber number, yielding the format 0 517 XXX XXXX. For example, a landline in the Blue Area commercial district might be dialed as 0517 123 4567 from anywhere in the country. However, international callers must omit the leading '0' and use Pakistan's country code +92, resulting in the format +92 517 XXX XXXX. Thus, the same number from abroad would be dialed as +92 517 123 4567. Local calls within the same exchange area may require only the 7-digit subscriber number, but this practice is becoming less common with the adoption of uniform dialing.

Numbering Structure and Overlays

Subscriber numbers within the 517 area code are seven digits long, following the NDC. The total international number length is 12 digits, including the country code (i.e., +92 517 XXX XXXX). As of the latest PTA updates, there is no overlay code for this geographic region; the 517 code exclusively serves the Islamabad/Rawalpindi area. However, due to increasing demand, the PTA has considered introducing an additional code (e.g., 518) for the region, but no overlay has been implemented to date. Callers should always verify the complete number to avoid misdialing.

Service Providers and Routing

Fixed-line services in this area are primarily provided by Pakistan Telecommunication Company Limited (PTCL), with alternative operators such as Nayatel and StormFiber offering fiber-to-the-home (FTTH) services using the same geographic numbering scheme. These operators route calls over both PSTN and VoIP infrastructure, but the geographic nature of the code means that calls are tariffed based on the called party's location. For international callers, the cost of calling a 517 number is typically higher than calling mobile numbers, depending on the international carrier's rate table. It is important to note that geographic codes in Pakistan are not portable to other regions; a number assigned to Islamabad/Rawalpindi cannot be moved to Karachi or Lahore.