Skip to main content
U.S. flag

An official website of the United States government

Search datasets

Found 2 datasets matching filters. (clear all filters)

  • #1 State

    Telephone Area Codes

    Maryland Telephone Area Code Boundaries represents the telephone area codes for the State of Maryland. They are also known as Numbering Plan Areas (NPA). The Numbering Plan Areas reflect current...

    Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: June 09, 2026 at 06:31 PM
  • #2 State

    Telephone Area Codes

    Maryland Telephone Area Code Boundaries represents the telephone area codes for the State of Maryland. They are also known as Numbering Plan Areas (NPA). The Numbering Plan Areas reflect current...

    Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: June 09, 2026 at 06:32 PM

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov