Appending phone number-related data to your database is most often used to fill in gaps in your records. This comes in two forms:
Similar to phone data, email data is appended to your database in the case of missing or incomplete information. However, with email data, emphasis is placed on appending recent, active email addresses that have already been verified using an opt-in permission email to decrease bounce-backs after an email is sent.
Email-related data can be appended to your database in two ways:
Reverse Email Append For records that contain an email address but little other information about the customer, the email address is used to discover additional information such as the individual's name and phone number.
For agencies or brands that aren’t targeting individual consumers but instead conducting business-to-business marketing, appending firmographic data is the way to go. With firmographic data append, you can supplement your records with the following information about businesses in your target market: