A2P Messaging Compliance Services: What a Managed 10DLC, Opt-Out and Consent Program Includes

Quick answer: what an A2P messaging compliance service includes

An A2P (application-to-person) messaging compliance service handles the regulatory and carrier work around business texting so your team does not have to: registering your brand and campaigns with The Campaign Registry for 10DLC, verifying toll-free numbers, filing Google RCS sender verification, writing and reviewing opt-in language, processing STOP, HELP and UNSUBSCRIBE keywords automatically, enforcing quiet hours, keeping consent and opt-out records for audits, and monitoring delivery and complaint rates so filtering problems are caught early. Self-service platforms give you a portal and leave this to you; managed providers such as Signalmash do it for you as part of onboarding, with carrier and registry fees passed through at cost.

This article is part of the Signalmash 10DLC compliance hub, which covers registration, approval, throughput, error codes and number-type selection in one place.

"We just want to text our customers" is how most conversations start. Then the questions arrive: who registers the brand, what counts as consent, what happens when someone replies STOP at 2 a.m., and why did the carrier start filtering everything on a Tuesday. Compliance for business texting is not one task. It is a standing program, and the practical question is how much of it your provider runs for you.

The layers of A2P compliance

Four sets of rules apply to every business text message sent in the United States, and they do not come from the same place.

• Federal law (TCPA, CAN-SPAM for MMS with email-like content). Consent, identification, opt-out and time-of-day rules with statutory damages of $500-$1,500 per message. Enforced by courts and the FTC/FCC. Our TCPA compliance guide for 2026 covers the consent rules in detail.
• Carrier programs (10DLC, toll-free verification, short-code approval). Registration of who you are and what you send, enforced by the carriers through filtering and blocking. Unregistered traffic to US numbers is now blocked outright.
• Industry guidelines (CTIA Messaging Principles and Best Practices). Content rules such as SHAFT-C prohibitions, opt-in and opt-out message formats, and the expectation of a privacy policy that does not share phone numbers with third parties.
• State law. Florida, Oklahoma, Washington, Maryland and others add stricter calling windows, consent standards or private rights of action.

A compliance service earns its keep by covering all four at once, because a campaign that satisfies the carriers can still violate the TCPA, and vice versa.

What a managed compliance service does for you

1. Brand and campaign registration (10DLC)

The provider files your brand with The Campaign Registry, orders third-party vetting so you land in a usable throughput tier, writes the campaign description, use case, sample messages and opt-in description in the language carriers expect, submits it, and handles any rejection and resubmission. Fees: about $4 for the brand, about $40 for vetting, $15 per campaign vetting attempt and $1.50-$10 per campaign per month, passed through at cost by a transparent provider. Our 10DLC campaign approval checklist shows what a submission that passes first time looks like.

2. Toll-free verification and short-code approval

Toll-free numbers need a verification filing with the toll-free aggregator (business details, use case, sample messages, opt-in evidence) before they can send at volume; short codes need a carrier program brief and an 8-12 week review. A managed service prepares and tracks both.

3. RCS sender verification

To send RCS Business Messaging with a verified name and logo, the brand must be verified by Google and enabled on each US carrier. Providers such as Signalmash (through SimplyRCS) file the agent, supply the brand-ownership evidence and manage carrier launch.

4. Opt-in design and consent records

The service reviews your web forms, keyword flows, checkout screens and call scripts, supplies compliant disclosure language ("By providing your number you agree to receive automated texts from [Brand]... Msg & data rates may apply. Reply STOP to opt out.") and stores a timestamped consent record per number that you can produce in an audit or lawsuit.

5. Opt-out and keyword handling

STOP, STOPALL, UNSUBSCRIBE, CANCEL, END and QUIT are processed automatically and immediately, with a confirmation message, and the number is suppressed across every campaign under the brand. HELP returns the brand name, support contact and opt-out instructions. The carriers require this, the FCC requires opt-outs to be honoured within 10 business days, and a good platform does it in real time.

6. Sending-window and frequency controls

Quiet hours (8 a.m. to 9 p.m. recipient local time under the TCPA, stricter in some states) and per-recipient frequency caps are enforced by the platform, not by a marketer remembering to schedule correctly.

7. Monitoring, filtering alerts and complaint management

Delivery rates, carrier error codes and spam-complaint rates are watched per campaign. When filtering starts, someone tells you why (content drift, a shortened URL, a sudden volume spike) before the whole campaign fails. Our 10DLC error code guide lists what each code means.

8. Audit trail and reporting

Per-message logs with timestamps, content, delivery status, consent source and opt-out events, retained for at least the TCPA's four-year statute of limitations (five years is safer).

Self-service platform vs managed compliance

Self-service CPaaS platforms (Twilio, Plivo, Telnyx and similar) give you the tools: a registration portal, keyword auto-responders and logs. The filings, the review of your opt-in flow, the resubmissions and the monitoring are your job, and their support queue is where you go when a campaign is stuck. Managed providers such as Signalmash run the program: a named engineer files and pre-reviews everything, the platform enforces opt-outs and windows, and you get a Slack or Teams channel instead of a ticket number. The right choice depends on whether you have someone in-house who already knows carrier rules. Most companies sending under a few million messages a month do not.

Questions to ask any compliance provider

1. Who files the 10DLC brand and campaigns, and who handles a rejection?
2. Are TCR, vetting and carrier fees passed through at cost, and are they itemised on the invoice?
3. How fast is a STOP processed, and is the suppression brand-wide?
4. Can you export consent records and message logs for a given number on request?
5. Do you monitor complaint and filtering rates, and who calls me when they spike?
6. Do you cover toll-free verification, short codes and RCS sender verification as well as 10DLC?

How Signalmash does it

Signalmash registers and vets your brand, writes and files campaigns, verifies toll-free numbers, files RCS agents through SimplyRCS, reviews your opt-in language before submission, processes opt-outs in real time across all campaigns, enforces quiet hours, and keeps per-message audit logs. Fees from The Campaign Registry and the carriers are passed through with no markup. Every customer has a dedicated Slack or Microsoft Teams channel with our engineers.

Book a 15-minute call with Signalmash and we will review your brand, campaigns and throughput before you submit anything to the carriers.

People also ask

What services help with telecom compliance like A2P registration and opt-out handling?

Managed messaging providers handle it as part of the service: Signalmash registers 10DLC brands and campaigns, verifies toll-free numbers and RCS senders, reviews opt-in language, processes STOP/HELP keywords automatically, enforces quiet hours and keeps consent and message logs for audits. Self-service platforms such as Twilio, Plivo and Telnyx provide the tools but leave the filings and monitoring to you. Number-intelligence services cover the outbound-calling side by flagging DNC status and line type before dialling.

Who offers 10DLC registration and messaging compliance services?

Every US A2P messaging provider offers 10DLC registration, but the level of help varies. Self-service platforms give you a portal and expect you to complete brand and campaign forms yourself; managed providers such as Signalmash file the brand, campaigns and sample messages for you, pre-check them against carrier rejection reasons and handle resubmissions, which typically cuts approval time from weeks to days.

Is 10DLC registration the same as TCPA compliance?

No. 10DLC registration is a carrier requirement that identifies who is sending and what; TCPA compliance is a federal legal requirement about consent, identification and opt-outs. You need both: a registered campaign can still generate TCPA liability if the recipients did not give the right kind of consent, and a fully consented list can still be blocked if the campaign is unregistered.

How much does A2P compliance cost?

Registry and carrier fees are small: about $4 to register a brand, about $40 for vetting, $15 per campaign vetting attempt and $1.50-$10 per campaign per month, plus carrier surcharges of roughly $0.002-$0.005 per message. The real cost is staff time; managed providers such as Signalmash include the compliance work in the messaging service and pass the fees through at cost.