Consent doesn't transfer with a phone number. When a person opts in to one sender, the carrier standard is explicit that they don't expect their number sold or shared to another sender. So a bought, rented, or swapped list isn't a shortcut to a consented audience, it's a list of strangers who never agreed to hear from you.
What you actually bought
Numbers and a problem. Every person on a purchased list who didn't opt in to you is an unsolicited text waiting to happen, which means spam reports, filtering, and TCPA exposure across the whole list at once.
There's no compliant shortcut
The only list you can safely text is one you built, through real opt-ins with proper disclosure. It's slower, and it's worth more: people who actually want to hear from you, who open your messages, and who don't report you.
Frequently asked questions
Can I legally buy a texting list for my campaign?
No. Purchased numbers didn't consent to you, so texting them is unsolicited, exposing you to spam reports, carrier filtering, and TCPA liability.
What about a list another committee shares with me?
Same problem. Consent is to the specific sender the person opted in to. A shared list is unconsented to you; the other committee can't hand you permission it got for itself.
Informational, not legal advice.
Keep reading: Your opted-in list is not for sale and How to grow a texting list that's actually yours.