Guides
US phone numbers: format, area codes, validation and texting rules
US phone number format: +1 plus 10 digits (NPA-NXX-XXXX), US vs Canada area codes, tested validation code, porting, 10DLC, TCPA and the FCC reassigned database.
18 min read
Articles tagged “Tcpa”
4 articles.
Guides
The TCPA "revoke-all" opt-out rule: what the FCC's 2026 order changes
What the TCPA revoke-all opt-out rule required, why it was delayed to 31 January 2027, how the FCC's September 2026 order (FCC 26-67) replaces it, and an opt-out data model. Not legal advice.
11 min read
Guides
TCPA compliance checklist for SMS senders (2026)
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
The Reassigned Numbers Database (RND), explained
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
