5 articles.
Fraud prevention
For number providers, MVNOs and virtual-number resellers: quarantine rules by country, the FCC database, and HLR and app-account checks before reissue.
12 min read
Deliverability
Disconnected phone numbers are reassigned to new people, so every list decays. How recycling works, what the US rules say, and a re-check cadence recipe.
7 min read
Guides
A dated TCPA checklist for SMS: consent, opt-out words, 10-day revocation, quiet hours, do-not-call, reassigned numbers and list hygiene. Not legal advice.
9 min read
Guides
To check if a phone number is active, validate it, then run a carrier or HLR lookup for live status; app checks show registration. Free methods and limits.
8 min read
Guides
What the FCC Reassigned Numbers Database does, how its yes/no/no-data answers and TCPA safe harbor work, what it costs, and where other checks fit.
8 min read
