National Directory Assistance Data

LSSiDATA is the leading provider of National Directory Assistance data in North America – if you have ever dialed 411 or used Directory Assistance then most likely you have received LSSiDATA’s data served by VoltDelta’s network and platform. Because this data is used to power Directory Assistance the telephone service providers require the data to be of the highest quality – to be the most current, timely and accurate source of name address and telephone number available anywhere. In fact, VoltDelta’s telephone company customers audit the database quarterly and an accuracy rate of less than 99% is not acceptable.

While there are other sources of Directory Assistance data LSSiDATA’s is unique; we aggregate our data from all the RBOCs, the CLECs and the most VoIP and Cable telephone providers making our database the largest. Once the data is sourced LSSiDATA performs extensive processing including merging, address standardization and hygiene as well as missing data append ensuring that the database is the most complete of its kind. Finally the processing and database re-build happens daily making the database the most current in the market.

The National Directory Assistance database is LSSiDATA’s core data assets; it is the main data asset behind most of our products such as FirstConnex Plus 2.0, SmartMatch 2.0, WebDA and is the most commonly data set accessed through the LSSiDATA Universal Gateway. Because of the daily updates and intensive processing the National Directory Assistance database is often an “anchor” data set that is used to increase the value and effectiveness of existing data sets, such as customer, prospect or marketing data.

LSSiDATA offers this core asset for consumption as a source for New Mover products, as a Data Feed, in an Interactive mode or for Appends.

National Directory Assistance Database Facts

Number of Records
    Business: 13,884,400+

     Residential: 94,510,900+

     Bus / Res Combo: 1,242,500+

     Government: 262,100+

     Captions: 6,194,200+

Significant Data Elements

    All – Address:
        Pre-Directional
        Street Number
        Street Name
        Street Type
        Street Post-Directional
        City
        State
        Zip
        FIPS
        Lat / Long

Update Cycle: Daily

Mailability
    Complete Address: 94,002,800+
    CASS certified: 84,450,700+
    Lat / Long: 109,889,400+

Business:
    Business Name
    SIC Code
    Caption indicator

Government:
     Federal / State / Local IndicatorResidential:
     First Name
     Last Name
     Geneology

National Directory Assistance Data Sheet
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