
Summary
Provides you with the highest quality and most accurate telephone data products available- the same numbers you access when you call 411. We use matching logic designed to eliminate false positives, and provide you with a corresponding matching table with your output.
Basic info
What is 411 Append?
Why do you need it?
Pricing info
Contact Marketing specializes in building and providing you with the highest quality, and most accurate telephone data products available. The 411 data is literally a daily cut of the 411/Electronic Directory Assistance information - the same numbers you access when you call 411.
Our Electronic Directory Assistance Service is based on the data derived from the approximately 160 million telephone company source name, address and phone number listings for every U.S. and Puerto Rico residence, business and government agency. Moves today are updated tonight and reflected in tomorrow’s data.
Our data is based on the telephone company service order, and is enhanced with matching logic to ensure our results are 'findable' and accurate.
Our service aggregates more than 700 sources of publicly available telephone company records nightly, enhances the data, and is ready for matching the next day. We use matching logic designed to eliminate false positives, and provide you with a corresponding matching table with your output. Matching logic can be customized to accommodate specific search requirements.
Most of Contact Marketing clients run the standard
Residential phone append or Business phone append and then run the non-matches against the 411 database to catch those newer numbers and people who may be listed in 411 but not present in a directory.
Contact Marketing developed an advance and unique pricing system. There are no hidden fees, no set up fees and you get a greater discount as you processing info:

Product info
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