NPANXX Data

NPANXX Data

SPECIFICATION

INFORMATION ABOUT YOUR ORDER
PLEASE READ BEFORE PROCEEDING

The specifications below describe the file you would receive. We believe you should know exactly what to expect when you order from Maponics. If you have any questions, please call us at 800-762-5158.

Please note that there are two NPANXX Data products: Standard and Professional. Quarterly Update Subscriptions are available for the Professional version only.

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Standard NPANXX Data
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* Each record is a unique NPANXX to ZIP Code correspondence. Most NPANXX serving areas are overlapped by multiple ZIP Codes. Records are not provided for NPANXX combinations where the ZIP Code includes less than 2% of listed subscribers.

* The following fields are provided in the Standard product:
NPANXX Combined Area Code and local number prefix (six digits)
LATA Local Access Transport Area for the NPANXX (three digits)
State State or province of the area served by this NPANXX (two characters)
ZipCode_PostalCode ZIP Code (United States) (five digits) or Postal Code (Canada) (two groups of three characters each)
ZipCode_Count Approximate number of listed subscribers with this ZIP Code within this NPANXX
0 = Actual count unknown (common for newer NPANXXs)
ZipCode_Freq_ Percent frequency of occurrence of this Zip Code in the NPANXX area.
If > 0, then actual estimated percent
If = 0, then unknown
If = -1, then the ZIP Code is the most frequent, but % unknown
If = -2, then the ZIP Code is the second most frequent, but % unknown

* The data is provided as-is. Although the compiler makes every effort to ensure the data is up to date and accurate, errors will exist and Maponics cannot be liable for use of the product.

* Provided in delimited text format via immediate download.

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Professional NPANXX Data
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* Each record is a unique NPANXX to ZIP Code correspondence. Most NPANXX serving areas are overlapped by multiple ZIP Codes. Records are not provided for NPANXX combinations where the ZIP Code includes less than 2% of listed subscribers.

* The following fields are provided in the Professional product:
State State or province of the area served by this NPANXX (two characters)
NPANXX Combined Area Code and local number prefix (six digits)
NPA Numbering Plan Area (NPA or Area Code) (three digits)
Overlay Indicates if this NPA is overlaid with another
1 = NPA overlay exists
Blank = No overlay
NXX Local number prefix (three digits, where N=2-9 and X=0-9)
NXX_Use_Type Primary use designation. Note that some NXXs may be divided between landline and wireless; this is the reported type.
L = Landline
W = Wireless
NXX_Intro_version Approximate active service date for this NXX, within twelve months of the actual NXX service date. Service dates prior to 1994-02-04 will show that date regardless of actual service date.
Rate_Center Rate Center name for the NPANXX (maximum ten characters)
Blank = Rate Center name unknown
LATA Local Access Transport Area for the NPANXX (three digits)
Company Operating Company assigned primary responsibility for serving the NPANXX
OCN Four-digit code of the Operating Company (Operating Company Number)
State State or province of the area served by this NPANXX (two characters)
County The county for the area served by this NPANXX
City Popular name of the city served by this NPANXX. (May represent only a part of the service area.)
ZipCode_PostalCode ZIP Code (United States) (five digits) or Postal Code (Canada) (two groups of three characters each)
ZipCode_Count Approximate number of listed subscribers with this ZIP Code within this NPANXX
0 = Actual count unknown (common for newer NPANXXs)
ZipCode_Freq_ Percent frequency of occurrence of this Zip Code in the NPANXX area.
If > 0, then actual estimated percent
If = 0, then unknown
If = -1, then the ZIP Code is the most frequent, but % unknown
If = -2, then the ZIP Code is the second most frequent, but % unknown
WeightLat Latitude for the centroid of the ZIP Code that has the highest frequency of occurrence within the NPANXX
WeightLon Longitude for the centroid of the ZIP Code that has the highest frequency of occurrence within the NPANXX
Switch_CLLI Common Language Location Identifier (CLLI) Code for the central office switch serving this NPANXX (eleven characters)
Blank = CLLI unknown
Latitude Latitude of record for the central office switch.
Longitude Longitude of record for the central office switch.
FIPS Census Bureau FIPS code for the census tract where the central office is located (ten digits)
MSA_CBSA Census Bureau Name for the Metropolitan Statistical Area or Micropolitan Statistical Area where the central office is located.
MSA_CBSA_CODE Census Bureau CBSA code for the Metropolitan Statistical Area or Micropolitan Statistical Area where the central office is located

* The data is provided as-is. Although the compiler makes every effort to ensure the data is up to date and accurate, errors will exist and Maponics cannot be liable for use of the product.

* Provided in delimited text format via immediate download.