How accurate are DMAs databases?

accurate databases DMA
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How accurate are DMAs databases?

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In addition to multi-sourcing, our consumer data is continuously updated and processed against both the National Change of Address File (NCOA) and the Delivery Sequence File (DSF). Our information is updated continuously from new sources on a monthly basis. It is the best information available anywhere, but it is not perfect. You will still find a small percentage of errors. It is not uncommon to have 10-15% undeliverable names in any given list. It is estimated that 23% of the US population moves each year.

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