363 Phone Number Lookup | New York Area Code

Look up any phone number starting with 363 to identify the owner name, address, spam reports, and more. The 363 area code is a telephone area code serving Nassau County on Long Island, New York.

Look Up a 363 Phone Number

Enter a full 10-digit number to identify the caller and whether it has been reported as spam.

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Where Is Area Code 363 Located?

Area code 363 covers Nassau County on Long Island, New York.

Counties Served:

  • Nassau County

Major Cities:

No major cities are explicitly listed.

Other Cities and Towns:

No other cities and towns are explicitly listed.

Overlay System

Area code 363 is an overlay to area code 516 . This means that both area codes serve the same geographic region, Nassau County. Area code 516 was created in 1951, and area code 363 was added in 2023. Ten-digit dialing is required in this area.

Area Code 363 Location Map

Area Code 363 Location on New York Map

Area code 363 is a general purpose code which was placed in service on January 20, 2023.

Phone Number Prefixes and Carriers

Our New York phone number lookup for the 363 area code analyzes the three-digit prefix to identify the initially assigned telecommunications company and rate center. This prefix code data may help to determine the U.S. carrier, New York geographic region, and local calling area associated with the phone number.

Phone numbers follow the following structure under the North American Numbering Plan:

  • NPA- area code (where the number was originally assigned)
  • NXX - Central office code that locates the specific neighborhood and identifies the service provider
  • XXXX - Subscriber number identifies the individual phone line within that local exchange

Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.

Prefixes by Company

Company Number of Prefixes

Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.

Prefixes by Rate Center

Rate Center Number of Prefixes

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