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Area code for Kolkata
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Key neighborhoods and districts
Prefix: 033-2357
Major IT hub with tech parks housing TCS, Wipro, IBM, and hundreds of software companies.
Prefix: 033-2229
Premier commercial area with corporate offices, banks, hotels, and upscale retail establishments.
Prefix: 033-2210
Historic business district with banks, insurance companies, government offices, and trading houses.
Prefix: 033-2442
Emerging business hub with modern IT parks, shopping malls, and residential complexes.
Kolkata, formerly Calcutta, is the capital of West Bengal and India's third-largest metropolitan city. Known as the "City of Joy," Kolkata is a major cultural, educational, and commercial hub with a rich colonial heritage. The city is home to over 14 million people and serves as the principal commercial and financial center of East and Northeast India. Kolkata's economy is driven by IT services, manufacturing, retail, and a thriving port that handles significant international trade. The city hosts numerous corporate headquarters, particularly in sectors like jute, tea, banking, and insurance. When calling Kolkata, you'll connect with professionals in diverse industries from traditional manufacturing to modern IT services. The city operates on Indian Standard Time (IST, UTC+5:30) with business hours typically from 9:30 AM to 6:00 PM Monday through Saturday, with many offices closing early on Saturdays.
State-of-the-art technology park in Sector V with multiple IT and ITES companies.
Format: 033-XXXX-XXXX
Modern business campus in New Town with global tech companies and startups.
Format: 033-XXXX-XXXX
Traditional wholesale trading hub for textiles, metals, and consumer goods.
Format: 033-XXXX-XXXX
Kolkata has a more relaxed business pace compared to Mumbai or Bangalore. Personal relationships and trust-building are valued. The city experiences hot, humid summers and mild winters. Traffic can be challenging during rush hours and festival seasons. The city observes numerous Bengali festivals which may affect business operations.
Step-by-step dialing instructions
Within Kolkata, dial the 8-digit local number directly from landlines. Mobile phones should include the 033 area code even for local calls.
Toll-free numbers start with 1800. Emergency services: Police (100), Fire (101), Ambulance (108/102). For railway inquiries dial 139.
Major operators include Airtel, Vodafone Idea, Jio, and BSNL. The city has comprehensive 4G coverage with 5G services expanding across business districts.
Business hours are 9:30 AM to 6:00 PM with Saturday half-days common. Bengali and English are both used professionally. Avoid calling during festival seasons like Durga Puja when the city largely shuts down.
Example: +91 033 1234567
Common reasons people call this city
Connect with software developers, IT companies, and tech professionals in Salt Lake's expansive IT corridor.
Reach traders and exporters in traditional industries where Kolkata has historical dominance.
Contact banking, insurance, and financial institutions headquartered in East India's commercial capital.
Connect with manufacturing units, industrial enterprises, and export-oriented businesses.
Key statistics and information
Population
Time Zone
Business Hours
Peak Times
Get answers to common questions
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