Area Code Database

NPA - NXX Area Code Database

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What is an Area Code Database?

Our Area Code Database is set of all U.S. area code data put into row and column format for easy use and manipulation. We give you so many fields of data that you can manipulate the data virtually any way you want. It is great for data validation, rate center lookups, line type lookups, etc.

Unlimited number of users included in all prices
Our data integrates with other applications seamlessly
Get a full 12 months of access - we update our data 4 times a year
Immediate download after purchase
Multiple ZIP Codes listed for each NPANXX (some with over 20+ ZIPs listed)
Multiple data formats to suit your needs: MDB, CSV, TAB

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Only the Best For You:
Immediate Download :: As soon as your purchase of is complete and payment received, you will be able to download the ZIP Code Database immediately.	Included	Included
1 Year Subscription with Monthly Updates :: All purchases come with a 1 year subscription. You will get the ZIP Code Database immediately as well as 12 monthly updates.	Included	Included
Microsoft® Access (.MDB) :: All database versions can be downloaded in Microsoft Access .MDB format for immediate use.	Included	Included
Microsoft® Excel (.XLS) :: All database versions can be downloaded in Microsoft Excel .XLS format for immediate use.	Included	Included
Comma-Delimited (.CSV) :: All database versions can be downloaded in Comma Separated Values .CSV format for immediate use.	Included	Included
Free FTP Access :: Would you like to automate the import and delivery of the ZIP Code Database on a monthly basis? We can setup an FTP account explicitly for you to retrieve any of our databases. Just shoot us an email with your username and it's as good as done. FTP, SFTP, and FTPS available to meet your companies policies.	Included	Included
100% Money Back Guarantee :: Our ZIP Code Database is the most accurate available and we back this up with our 100% Money Back Guarantee.	Included	Included
Free Technical Support :: There is a LOT of data in our ZIP Code Database, and it can be hard understanding some things at times. That's why we are always here and able to assist you in working with our databases, free!	Included	Included

Data Fields & Columns:
NPANXX :: The Area Code and Prefix Combination together. ¹	Included	Included
NPA :: Area Code (NPA = Numbering Plan Area) ¹	Included	Included
NXX :: Three digit local number prefix (X=2-9, X=0-9). Generally 201 thru 999. ¹	Included	Included
State :: Two letter USPS state abbreviation ¹	Included	Included
ZIP Code :: US ZIP Code or Canadian Postal Code. US codes are five numerical digits, Canadian Postal Codes are 7 character alphanumeric codes.† ¹	Included	Included
ZIP Code Population :: Approximate number of actual ZIP code occurences (listed subscribers) within NPA/NXX. 0 = Actual count unknown. ¹	Included	Included
ZIP Code Frequency :: Percent frequency of occurrence of this Zip Code in the central office coverage area. If > 0, then actual estimated percent, -1 = Most frequent but % unknown, -2 = Second most frequent, but % unknown. ¹	Included	Included
LATA :: Local Access Transport Area code. ¹	Included	Included
County Population :: The population of the county from the 2010 Census. ²	Included
Latitude :: Latitude of record for the central office. ²	Included
Longitude :: Longitude of record for the central office. ²	Included
WeightLatitude :: Latitude for the centroid of the ZIP Code that has the highest frequency of occurrence within the NPANXX. ¹	Included
WeightLongitude :: Longitude for the centroid of the ZIP Code that has the highest frequency of occurrence within the NPANXX. ¹	Included
City :: Popular or political name of city. ¹	Included
County :: Name of county this record resides in. ¹	Included
Time Zone :: Offset from GMT (5=East, 6=Central, 7=Mountain, 8=West, etc.) ²	Included
Observes DST :: 1 = Observes DST (Daylight Saving Time) during the normal DST observance period, 0 = Does not observe DST at all. Some areas of the country such as AZ (except for the Navajo Nation), HI, GU, PR, VI, and parts of IN do not observe DST. ²	Included
NXX Use Type :: Primary use designation. L=Landline, W=Wireless (all wireless; pagers, cellular, PCS, etc.) Note that some NXXs may be subdivided between landline and wireless. This is simply the reported type. ¹	Included
NXX Intro Version :: Version of this product that NXX first appeared. This is not necessarily the NXX service date, but it should be within 12 months. exception: Since 1994-02-04 was the first version that included the intro date, then all older NXXs will have an intro date of 1994-02-04 regardless of actual service date. ¹	Included
FIPS Code :: Census Bureau FIPS code (ID) for the tract of the central office. ²	Included
Overlay :: 1 = NPA recent overlay, blank = Not an overlay ¹	Included
Rate Center :: Ten character Rate Center name for CO. Blank = Rate Center name unknown. ¹	Included
MSA/CBSA :: Census Bureau Names for the metro area of the central office. ²	Included
MSA/CBSA Code :: Census Bureau ID numbers for the metro area of the central office. ²	Included
OCN :: Four-character alphanumeric field identifying the NPA-NXX code-holder and/or service provider. ¹	Included
Phone Company :: The name of the phone company the NPA/NXX is registered to. ¹	Included
Coverage Area Name :: The name of the area this NPA-NXX Covers. This is primarily the city name but other Alias Names may be used. ¹	Included
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† Due to the Number Portability Act, users can keep their telephone number when switching providers. They can move to any ZIP Code in the United States with the same NPA/NXX. Over time the connection between ZIP Code and Area Code has become less meaningful. In many cases there is no correlation at all and thus should not be relied upon any longer, in our opinion. We leave the ZIP Codes in the data for reference only, but not all ZIP Codes are represented.

Area Code Database: An Essential Resource For Modern Businesses And Technology Solutions.

Are you planning to optimize your resources by focusing on targeted regions? Do you want to reduce customer service inefficiencies through automated call direction-finding? Saves time by automating location-specific processes. Use the area code database from ZIP-Codes.com and take advantage. It can be easily integrated into growing businesses or apps, adapting to expanding needs. It helps people in business or management make better predictions and more informed business decisions.

An area code database is a powerful tool for both business owners and developers. It enables you to immediately know the caller’s location through their ZIP code. The calls can be directed to the nearest service centre or agent. This reduces call latency and improves the quality of service. You can be more familiar with the caller’s regional needs, preferences, and concerns, allowing for more personalized service. Business intelligence is more than a buzzword. Data can now be crunched in thousands of novel ways.

Improve Communication Efficiency With Datasheer’s Area Code Database System.

Unlike other geographic data, ZIP code boundary data are an invented concept and you can target specific areas to reach your target audience. The area code database can help determine the caller’s time zone. Calls can subsequently be directed to agents operating within the same or a compatible time zone. It will facilitate the scheduling of callbacks and prevent calls from occurring during non-business hours. With this knowledge, you can adjust staffing levels and service hours to better accommodate peak times in a specific region. It can help direct calls to agents who speak the preferred language or dialect of that area, thus improving communication efficiency.

We strive to provide the most critical location-based insights to help optimize business operations, enhance customer service, and improve marketing strategies. Developers can leverage our database to create smarter, more responsive applications. If you're seeking a reliable yet effective resource for call direction-finding, fraud prevention, or analytics, the Datasheer’s NPA NXX Database Download could be the perfect solution for modern businesses and technology needs. Our area code databases, maps, and tools are high-quality products known for their accuracy, usefulness, and value. We welcome your suggestions and feedback to help us serve you better.

References

North American Numbering Plan Administrator: NANPA [Updated Quarterly], https://nationalnanpa.com
ZIP-Codes.com Internal Data Creation [Last Updated: 5/1/2025], https://www.zip-codes.com

Portions of data provided by and © United States Postal Service 2025. Zip-Codes.com is a non-exclusive licensee of the United States Postal Service.