> For the complete documentation index, see [llms.txt](https://docs.limephone.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.limephone.io/workspace/trust-center-10dlc-and-compliance.md).

# 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

1. Open **Settings → Trust center** and create your **Brand** with accurate legal business details.
2. Create a **Campaign**: describe your use case clearly and include representative sample messages.
3. Submit — LimePhone verifies the details and files them with The Campaign Registry.
4. 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 <support@limephone.io>.