Where is Area Code 363?
Area code 363 is assigned to southeastern New York and functions as an overlay to the established 516 area code. This region includes major communities such as Hempstead, Levittown, and Freeport. As an overlay, area code 363 covers the exact same geographic territory as 516, providing additional phone number capacity for Nassau County and surrounding areas on Long Island.
For official geographic boundaries and detailed information about area code 363, contact:
- North American Numbering Plan Administrator (NANPA)
NANPA Mailing Address
One Tower Center Boulevard
Suite 800
East Brunswick, NJ 08816
NANPA Customer Support
Tel: 1-866-623-2282
Email: support@nanpa.com
Fax: 571-363-3838
Website: NANPA
For state-level telecommunications oversight:
- New York State Public Service Commission
Three Empire State Plaza
Albany, NY 12223-1350
Phone: 1-800-342-3377
Website: www.dps.ny.gov
What Time Zone is Area Code 363 In?
Area code 363 operates in the Eastern Time Zone (ET). This region observes Eastern Standard Time (EST) during winter months and Eastern Daylight Time (EDT) during daylight saving time. All communities within the 363/516 overlay, including Hempstead, Levittown, and Freeport, follow this time zone.
For official time zone information:
- National Institute of Standards and Technology (NIST)
100 Bureau Drive
Gaithersburg, MD 20899
Phone: 301-975-6478
Website: NIST
History of the 363 Area Code
Area code 363 was created as an overlay to address the depletion of available phone numbers in the 516 region. Nassau County's dense population, thriving business community, and high demand for mobile devices and internet services necessitated additional numbering resources.
Implementation Timeline:
- 2022: NANPA and the New York Public Service Commission announced the need for a 516 overlay due to projected number exhaustion.
- 2023: Area code 363 officially launched as an overlay to 516, requiring ten-digit dialing for all local calls within the region.
- Existing phone numbers retained their 516 area code, while new assignments may receive the 363 prefix.
How Many People Use the 363 Area Code?
Area code 363 is a recently implemented overlay, so the majority of residents and businesses in Hempstead, Levittown, and Freeport currently maintain 516 phone numbers. As new telephone services are established, including cell phones, landlines, and business lines, the 363 area code will be increasingly assigned.
The combined 363/516 region serves over 1.3 million people in Nassau County and surrounding Long Island communities. The distribution between 363 and 516 numbers will evolve as telecommunications demand continues to grow.
Is the 363 Area Code Toll-Free?
No, area code 363 is not a toll-free area code. It is a standard geographic area code serving southeastern New York. Calls to or from area code 363 are subject to regular calling rates as determined by your telecommunications provider and service plan.
U.S. toll-free area codes include: 800, 833, 844, 855, 866, 877, and 888.
For information about toll-free numbers:
- Federal Communications Commission (FCC)
45 L Street NE
Washington, DC 20554
Phone: 1-888-225-5322
Website: FCC