Area Code 262 – Kocaeli
The phone area code for Kocaeli is 262 (international format +90262). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Kocaeli
Overview of Area Code +90 262
Area code 262 is the National Destination Code (NDC) for the province of Kocaeli in Turkey, assigned under the country calling code +90. Kocaeli is a major industrial and logistics hub located in the Marmara Region, with its administrative center in İzmit. The code covers the entire province, including the densely populated districts of Gebze, Darıca, Çayırova, Dilovası, Körfez, Derince, Başiskele, Kartepe, and Kandıra. As a geographic code, it is tied to the PSTN (Public Switched Telephone Network) infrastructure of the region, although many subscribers now use VoIP or mobile alternatives.
Dialing Format and Usage
For callers within Turkey, the national dialing format is 0 262 XXX XX XX, where the leading 0 is the trunk prefix. For international callers, the format is +90 262 XXX XX XX (or 00 90 262 XXX XX XX from most countries). Local calls within the same area code may be dialed without the trunk prefix and area code, depending on the operator's local dialing rules, but it is always safe to use the full national format. Kocaeli does not have an overlay code; the 262 code is the sole geographic code for the province.
Geographic Coverage and Economic Significance
Kocaeli is one of Turkey's most important industrial provinces, hosting major automotive, petrochemical, and logistics facilities. The area code serves both residential and business lines, including large industrial zones such as Gebze Organized Industrial Zone and İzmit's commercial districts. Because of its proximity to Istanbul and its role as a transit point, the region has a high density of business communications, making reliable dialing information essential for commercial activities.
Caller Instructions
- Local callers within Kocaeli: Dial the 7-digit subscriber number if your operator supports local dialing; otherwise, use the full national format 0 262 XXX XX XX.
- Callers from other Turkish provinces: Dial 0 262 XXX XX XX.
- International callers: Dial your country's exit code, then 90 262 XXX XX XX (e.g., from the US/Canada: 011 90 262 XXX XX XX; from the UK: 00 90 262 XXX XX XX).
Important Notes
While 262 is a geographic code, number portability in Turkey allows subscribers to retain their numbers when switching operators, including fixed-line providers. Therefore, a number with the 262 prefix may not always be physically located in Kocaeli, though in practice the vast majority remain within the province. For emergency services, always dial 112 regardless of location.