Link Leads Blog · September 10, 2026
A scrub on day one only proves the list was clean on day one. Most agents work a batch for weeks past that, and the registry keeps changing under them the whole time.
Scrubbing a list against the Do Not Call registry before the first call is table stakes — it's the step covered in how to DNC scrub an aged lead list. What that first pass doesn't do is stay valid for the length of the campaign built on top of it. The registry isn't a static file you check once; consumers add their numbers to it continuously, and a number that was clear on the day you scrubbed can register a week or a month later. If your calling or texting campaign runs longer than a single day — and most do — the list you're dialing on week three is not the same compliance state as the list you scrubbed on day one.
The FTC's Telemarketing Sales Rule requires anyone using the National DNC Registry to pull an updated copy of the registry data at least once every 31 days and to use a version no older than that before placing calls. That 31-day ceiling isn't a suggestion — it's the outer limit the rule sets, not a target to aim for. A campaign that runs a single scrub at kickoff and then dials off that same file for two months is operating on stale registry data for most of that window, whether or not it happens to cause a complaint.
Link Leads' data is licensed in bulk and aged 30–90 days before it's ever sold, and every lead is resold non-exclusively with a 90-day rest before it can go out again. That means by the time a batch reaches your dialer, it's already carrying weeks of registry drift from the moment it was captured — and if you're working it across a multi-week cadence, more drift accumulates on top of that. The 30/60/90-day re-engagement wave laid out in SMS follow-up cadence for aged insurance leads is a good cadence for response rates, but each of those waves is also a new compliance checkpoint — a record that was scrubbable on day one shouldn't be assumed clean on day 60 just because nothing else about the file changed.
Rather than treating re-scrubbing as a separate calendar to track, tie it to touchpoints you're already running:
DNC status isn't the only thing that changes while a list sits in your CRM. Numbers get reassigned to new subscribers — the safe-harbor mechanics of checking that are covered in our reassigned numbers database post — and any STOP or opt-out reply your own campaign generated needs to be layered on top of every subsequent scrub, not just checked once (see SMS opt-out compliance for aged insurance leads). Running a fresh DNC pass without also re-checking reassignment and your own suppression list only closes one of three gaps that open up the longer a batch sits in active use.
If you're already keeping a batch-by-batch record — the columns and formulas in our cost-per-contact spreadsheet post — add one more field: last-scrubbed date, per batch. That single column turns "did we scrub this" into a lookup instead of a guess, and it's the first thing worth having on hand if a complaint ever asks you to show your compliance timeline rather than just your compliance intentions.
Running your own National DNC re-pulls means holding a registry SAN (Subscription Account Number) and re-downloading the area codes you're working at least every 31 days — doable, but it's one more recurring task competing with everything else on a solo agent's plate. A third-party scrubbing service folds the re-check into the same upload you're already doing for phone-type screening. We point buyers at Landline Remover (an affiliate link — we may earn a commission if you sign up) for exactly this: upload a CSV and it strips landlines and DNC-listed numbers in one pass, which makes re-running it before each wave a five-minute task instead of a registry-management project.
This is a practical workflow guide, not legal advice. The Telemarketing Sales Rule's re-scrub interval, state DNC registry rules, and how they apply to your specific calling and texting setup can vary and carry real penalties — confirm your scrubbing cadence with counsel familiar with telemarketing law before you scale a multi-wave campaign.
Link Leads sells SMS and email lead lists at a flat $0.012 per lead, minimum order 5,000 leads ($60), filterable by state and age band, deduped and delivered as an instant CSV. Build an order in the order builder, or pull a free 100-row sample before you commit to a batch.