Area Code 213 – Karachi

Overview of Area Code +92 21 3

The prefix +92 21 3 is a geographic National Destination Code (NDC) segment assigned to the greater metropolitan area of Karachi, the largest city and economic hub of Pakistan. In the international E.164 format, the country code +92 is followed by the NDC 21 and the subscriber number, which begins with the digit 3. This prefix is part of the fixed-line PSTN numbering plan for Karachi, administered by the Pakistan Telecommunication Authority (PTA).

Within the local dialing area, callers in Karachi typically dial the 7-digit subscriber number directly (e.g., 3XXXXXXX). However, when calling from outside Karachi but still within Pakistan, the full national significant number must be used: 021 3XXXXXXX. For international callers, the format is +92 21 3XXXXXXX.

Geographic Coverage and Administration

Karachi is the capital of Sindh province and serves as Pakistan’s principal seaport and financial center. The 21 NDC covers the entire Karachi Division, including districts such as South, East, West, Central, Korangi, and Malir. The prefix 3 within this NDC is allocated to specific central office codes, often associated with legacy Pakistan Telecommunication Company Limited (PTCL) exchanges and other licensed fixed-line operators. These numbers are geographically tied to the physical location of the subscriber’s line.

Dialing Formats and Caller Instructions

• Local call (within Karachi): Dial the 7-digit subscriber number, e.g., 3XXXXXXX.
• National long-distance call (from other cities in Pakistan): Dial 021 3XXXXXXX.
• International call (from abroad): Dial your country’s exit code, then 92 21 3XXXXXXX (e.g., from the US/Canada: 011 92 21 3XXXXXXX; from most European countries: 00 92 21 3XXXXXXX).

Note that Pakistan has implemented an overlay plan in some areas, but for Karachi, the NDC 21 remains the sole geographic code. Subscriber numbers under this prefix are 7 digits long, making the total national significant number 9 digits (21 + 7).

Practical Considerations

When calling a Karachi fixed-line number from abroad, always drop the leading 0 from the NDC. For example, the local number 0312-3456789 (if it were a fixed line under this prefix) would be dialed internationally as +92 21 3123456789. However, be aware that numbers starting with 3 after the NDC are often confused with mobile prefixes (e.g., 0300-033X), but the presence of the 21 NDC clearly indicates a fixed-line connection. Always verify the complete number to avoid misdialing.