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Area code for Houston
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Key neighborhoods and districts
Prefix: 713
Business district and corporate headquarters
Prefix: 713
Retail, dining, and upscale offices
Prefix: 713
World's largest medical complex
Prefix: 281
Oil and gas company headquarters
Prefix: 281
Master-planned community with major employers
Houston is the fourth-largest city in the United States and the energy capital of the world. Home to NASA's Johnson Space Center, the Texas Medical Center, and headquarters of major oil and gas companies, Houston is essential for energy, healthcare, and aerospace industries. The city uses area codes 713 (central), 281 (suburbs), 832 (overlay), and 346.
Corporate headquarters and professional services
Format: +1 713 XXX XXXX
BP, ConocoPhillips, and energy company offices
Format: +1 281 XXX XXXX
Hospitals, research centers, and medical businesses
Format: +1 713 XXX XXXX
Corporate offices and professional services
Format: +1 713 XXX XXXX
Houston is in the Central Time Zone. Business hours are 8 AM - 5 PM (energy companies often start early). Summer heat means many work from home in afternoons. The city is spread out, so most business is conducted by phone. Hurricane season (June-November) may cause disruptions.
Step-by-step dialing instructions
Dial the full 10-digit number. 713 is the original Houston code covering central areas.
713 covers central Houston, 281 surrounds it, 832 and 346 are overlays for the entire metro area.
Excellent coverage from all carriers. AT&T has a strong local presence.
Texan hospitality means friendly, warm communication. Business is professional but personable. Don't rush through pleasantries.
Example: +1 713 1234567
Common reasons people call this city
Connect with major energy companies and oilfield services
Reach the world's largest medical center and hospitals
Contact Johnson Space Center and aerospace companies
Connect with Port of Houston and import/export businesses
Key statistics and information
Population
Time Zone
Business Hours
Peak Times
Get answers to common questions
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