TCPA, DNC & A2P: What Every Investor Needs to Know Before Sending

Compliance isn't the exciting part of SMS marketing, but it's the part that can shut down your operation overnight or cost you tens of thousands in legal fees. Here's what you actually need to understand before sending a single text.

TCPA: The Law That Governs Everything

The Telephone Consumer Protection Act is the federal law that regulates how businesses can contact consumers by phone and text. For outbound SMS, the key provisions you need to know about relate to consent and the types of messages you're sending.

The TCPA distinguishes between different types of messages and the consent required for each. Marketing messages — which is what most outbound SMS falls under — have the highest consent requirements. The law was originally written for phone calls, but courts have consistently applied it to text messages as well.

The penalties are severe. TCPA violations can carry damages of $500-$1,500 per message. If you send 10,000 texts with a compliance issue, the potential exposure is staggering. This is why professional scrubbing and compliance processes aren't optional — they're essential insurance.

DNC: The Do Not Call Registry

The National Do Not Call Registry is a list of phone numbers belonging to consumers who have requested not to receive telemarketing calls or texts. Before any outbound SMS campaign, every number on your list must be scrubbed against the DNC registry.

But DNC scrubbing alone isn't enough. You also need to maintain your own internal DNC list — anyone who has ever opted out of your messages or asked you to stop contacting them. This list needs to be scrubbed against every future campaign, permanently.

TCPA Litigator Scrubbing

Beyond the standard DNC registry, there's a growing industry of TCPA litigators — individuals who deliberately keep their numbers on marketing lists to collect violation payouts. These serial litigators have filed thousands of lawsuits against SMS marketers.

Professional SMS services maintain databases of known litigator numbers and scrub these from every campaign. This is one of the most valuable but least understood compliance measures. A single litigator number in your list can result in a lawsuit that costs more than your entire SMS budget for the year.

A2P and 10DLC: The Carrier Side

A2P stands for Application-to-Person messaging — essentially any text sent from a business to a consumer. 10DLC (10-Digit Long Code) is the registration framework that carriers now require for A2P messaging on standard phone numbers.

As of recent years, all major carriers (AT&T, T-Mobile, Verizon) require businesses to register their brand and campaigns through 10DLC before sending messages. Unregistered traffic faces aggressive filtering, reduced throughput, and potential blocking.

The registration process involves registering your business entity (brand registration) and then registering each specific use case or campaign. The carriers assign a trust score based on your registration details, which determines your sending throughput and filtering treatment.

For real estate investors, this means you can't just grab a Twilio number and start sending. Your numbers need to be properly registered, your campaigns need to be approved, and your sending patterns need to stay within the parameters your trust score allows.

Carrier Filtering: The Invisible Wall

Even with proper 10DLC registration, carriers actively filter SMS traffic based on content, sending patterns, and complaint rates. If your messages trigger content filters, your throughput drops. If recipients report your messages as spam, your numbers can be flagged or blocked entirely.

This is an area where experience matters enormously. Knowing how to craft messages that deliver without triggering filters, how to manage sending velocity, when to rotate numbers, and how to maintain number health over time — these are operational skills that take months or years to develop.

State-Level Regulations

Beyond federal TCPA and carrier requirements, some states have their own SMS marketing regulations that can be more restrictive. Florida, for example, passed the Florida Telephone Solicitation Act which created additional requirements for text-based solicitations in the state.

If you're sending to multiple states — which most real estate investors are — you need to be aware of and compliant with the regulations in each state where your recipients are located, not just where you're located.

What This Means For You

The compliance landscape for outbound SMS is complex and constantly evolving. Getting it right requires staying current on TCPA case law, maintaining scrubbing processes, managing 10DLC registrations, monitoring carrier filtering, and keeping detailed records of consent and opt-outs.

This is one of the strongest arguments for working with a professional SMS service. The compliance infrastructure alone — litigator databases, DNC scrubbing, 10DLC management, carrier relationship management — costs tens of thousands of dollars to build and maintain. When you work with a service like GPA, that entire compliance layer is built into the service, protecting you from risks that most individual operators don't even know exist.