Trust center (10DLC & compliance)
Register your business so your US texting is delivered reliably and your numbers stay compliant.
The Trust center (Settings → Trust center) is where you handle the regulatory side of business calling and texting: US 10DLC registration for SMS, and the identity documents some countries require for owning numbers.
Why US SMS needs 10DLC
10DLC (10-digit long code) is the US carrier standard for business texting from regular local numbers. Registering tells carriers who you are and what you send, which gets you:
Better deliverability — registered traffic has higher throughput and lower filtering rates.
Compliance — registration is how business texting meets CTIA and carrier rules.
Trust — messages from a registered brand are less likely to be marked as spam.
If you text US numbers without registering, carriers filter your messages — they may silently fail to arrive. Registration isn't optional for US business SMS.
The Trust center tabs
Settings → Trust center is organized into tabs:
Brands — your legal business identity: legal name, business type, tax ID (EIN), address, website. This is registered with The Campaign Registry (TCR).
Campaigns — what you send and why: your use case (customer service, notifications, marketing), sample messages, and opt-in/opt-out handling. Campaigns attach to a brand.
Addresses — business addresses required for number ownership in some countries.
Bundles — regulatory identity bundles (KYC documents) that certain countries require before a number can be activated.
Numbers — which of your numbers are linked to which registrations, and their compliance status.
Registering for 10DLC
Open Settings → Trust center and create your Brand with accurate legal business details.
Create a Campaign: describe your use case clearly and include representative sample messages.
Submit — LimePhone verifies the details and files them with The Campaign Registry.
Once approved, your US numbers on that campaign can send registered SMS.
Timelines: approval typically takes several business days; carrier review can occasionally take longer. Plan registration before you need to text at volume.
Tips for smooth approval
Use your exact legal business name and a matching tax ID.
Describe your use case plainly, and make sample messages match it.
Include opt-out language ("Reply STOP to unsubscribe") in your samples and your real messages.
Get and keep records of customer consent before texting them — see the guide on preventing message filtering.
Other compliance notes
Some countries require KYC documents (via Bundles and Addresses) before a number can be issued or kept active.
Virtual numbers often can't receive bank or 2FA one-time passcodes — don't rely on them for account verification codes.
Questions? Contact [email protected].