Data Append services


Mobile and Landline phone number append service provides you with an accurate and fast way to add phone numbers to your house (customer or prospect) files. Our customized phone append solutions give you the best coverage for your appending needs by blending multiple data record sources. Our append service gives you a comprehensive resource of directory assistance and compiled telephone number listings for the U.S., Canada, and Puerto Rico.

Daily updated telco-sourced consumer and business directory assistance listings with over 170 million records.
Over a dozen sources of close to 215 million compiled listings from white and yellow page directories nationwide.
Multiple levels of match logic for the perfect balance of match rate and accuracy,


Enhance your ability to communicate with your customers through our Email Append service. Whether you are looking to upsell, cross-sell, or re-engage less active customers, email channel communication, when performed properly, is arguably the most cost effective manner of customer communication. We have one of the largest databases of email addresses with over 1.5 billion input records powering the database. Our email data is verified and validated to identify and eliminate email addresses associated with role accounts, complainers, hard bounces, invalid domains, and spam traps.

The data is compiled from third-party opt-in data
Each email address is scored based on several factors including the number of reported sources
Monthly updates to add new records and delete old records
Like our other data append products, we use customized match logic to balance match rate and accuracy. Not only do we maintain a meticulously compiled database for append and reverse append projects, but we also house a separate suppression file of over 220 million records. These are email addresses that are obsolete, fraudulent, spam traps or complainers – none of which you want to add to your customer database as the results can negatively affect your online sending reputation. These addresses are suppressed from our email append file.


Similar to our phone and email append products, through our multi-faceted data sources we have access to well over a billion consumer records from which we have compiled hundreds of consumer demographics that are utilized to enhance any customer or prospect database. Whether you are looking to append age, income, homeownership, presence of children or any other host of demographics, allow us to handle your demographic appends to aid in your customer or prospect database segmentation.

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