Overlap Checker

Check a prospect list against addresses from previous campaigns.

Client

Reference window

Which previous campaign addresses should be used as the reference?

Look back in time

Use all campaigns that started within the last N months.

Months back

Include current month

Specific campaigns only

Ignore the time window — use only the campaigns selected below.

Selected campaigns within window

Intersect: only selected campaigns that also fall within the lookback window.

Filter to specific campaigns (optional)

Prospect list

Upload CSV file

Must have street address, city, state, and ZIP columns.