Area Code

Frequently-anticipated questions:

What does this data set describe?
    Title: Area Code
    Abstract:
    Area Codes were defined by grouping exchange areas. Area codes are part of the North American Numbering Plan (NANP) for the Public Switched Telephone Network in the United States and its territories, Canada, Bermuda, and many Caribbean nations. NANP numbers are ten digits in length, and they are in the format: NXX-NXX-XXXX, where N is any digit 2-9 and X is any digit 0-9. The first three digits are called the numbering plan area (NPA) code, often called simply the area code. The area codes are usually assigned to a discrete geographic area, except for some numbers such as 800 that transcend specific geographic boundaries.

  1. How should this data set be cited?

    Kentucky Public Service Commission (PSC), 2002, Area Code.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -89.571121
    East_Bounding_Coordinate: -81.965126
    North_Bounding_Coordinate: 39.147629
    South_Bounding_Coordinate: 36.496998

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2002
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • G-polygon (4)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.

  7. How does the data set describe geographic features?

    Area Code

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREACODE
    Area Code or Numbering Plan Area as a number

    COUNT
    Number of exchange areas used to define eac area code in Kentucky

    SQR_MI
    Square miles calculated by summing square miles of exchange areas, which were calculated with Kentucky Single Zone State Plane Coordinates.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Ruth A. Rowles
    Kentucky Public Service Commission
    GIS Manager
    P.O. Box 615
    Frankfort, KY 40601
    502-564-3940 (voice)
    502-564-1582 (FAX)
    rarowles@ky.gov

Why was the data set created?
Used as general reference information by the Kentucky Public Service Commission.

How was the data set created?
  1. From what previous works were the data drawn?

    EXCH (source 1 of 1)
    Kentucky Public Service Commission, 1999, Exchange Areas in Kentucky.

    Source_Scale_Denominator: 1,500,000

  2. How were the data generated, processed, and modified?

    Date: August 2002 (process 1 of 1)
    Dissolve Exchange Area shapefile on Areacode field, sum square miles, to produce new shape file for Area Codes.

    Data sources used in this process:

    • EXCH

How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

    Based on accuracy of original data.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

  5. How consistent are the relationships among the observations, including topology?

How can someone get a copy of the data set?
Are there legal restrictions on access or use of the data?

Use_Constraints:
The user should give credit to the Kentucky Public Service Commission (PSC). The user must abide by the following data disclaimer. All information within the product is believed accurate but is not guaranteed without error. While attempts have been made to insure the correctness of the information presented, neither the Kentucky Public Service Commission nor any party involved in the creation and compilation of the data guarantees their accuracy, completeness, or suitability for a particular use. All critical information should be independently verified.

  1. Who distributes the data set? (Distributor 1 of 1)

    Ruth A. Rowles
    Public Service Commission
    GIS Manager

    Hours_of_Service: 8:30am - 4:30pm Monday - Friday
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?
Dates:
Last modified: September 16, 2002

Metadata author:
Ruth A. Rowles
Kentucky Public Service Commission
GIS Manager
P.O. Box 615
Frankfort, KY 40601
502-564-3940 (voice)
502-564-1582 (FAX)
rarowles@ky.gov
Hours_of_Service: 8:30am - 4:30pm Monday - Friday
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

Generated by mp version 2.7.3 on Tue Sep 17 15:06:09 2002

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Revised May 15, 2003