# Send SMS (A2P 10DLC)

**A2P 10DLC** is a U.S. carrier framework that lets businesses send high‑volume, application‑driven SMS and MMS using standard 10‑digit phone numbers (10DLC). Compared to plain long‑code traffic, registering under A2P 10DLC yields:

* **Improved deliverability** — fewer messages caught by carrier filters
* **Higher throughput** — faster sending rates per number
* **Brand & campaign vetting** — carriers know you’re a legitimate sender

### Do I Need to Register?

* **Yes**, if you send SMS or MMS to U.S. mobile numbers from a 10‑digit long code.
* **No**, if you only send outside the U.S.—you can keep messaging as usual.

### 📝 Registration Overview

The process has two parts:

| Step            | Description                                                                                             |
| --------------- | ------------------------------------------------------------------------------------------------------- |
| **1. Brand**    | Identify your business (Brand Type) and submit your company info and Tax ID (EIN) if applicable.        |
| **2. Campaign** | Define each messaging use case (e.g. marketing, alerts, notifications) and register it under A2P 10DLC. |

#### 1. Brand Registration

Your **Brand Type** depends on your legal status, message volume, and use case:

| Brand Type                 | Tax ID Required? | Daily Volume                             | Notes                             |
| -------------------------- | ---------------- | ---------------------------------------- | --------------------------------- |
| Hobbyist (Sole Proprietor) | No               | ≤ 3,000 msgs (max 1,000/day to T‑Mobile) | Non‑commercial or test senders    |
| Low‑Volume Standard Brand  | Yes              | < 6,000 segments/day                     | Small businesses                  |
| Standard Brand             | Yes              | ≥ 6,000 segments/day                     | Larger enterprises or high volume |

***

#### 2. Campaign Registration

Each use‑case (campaign) must be registered so carriers know exactly what kinds of messages you’ll send:

| Use Case     | Details                                                                            |
| ------------ | ---------------------------------------------------------------------------------- |
| **Standard** | Common scenarios (e.g. two‑factor auth, alerts)                                    |
| **Special**  | Regulated or sensitive (e.g. political, financial) – extra carrier review required |

***

### 🔗 How to Register

Registration happens in the Twilio Console:

1. Log in to **Twilio Console → Messaging → A2P 10DLC**
2. Complete the **Brand** form (company info, EIN, logo, website)
3. Add one or more **Campaigns**, selecting your use‑case type
4. Submit for carrier vetting

> For a step‑by‑step guide, see Twilio’s “How to Register for A2P 10DLC Messaging.”

***

### ⏱️ Registration Timeline

| Item                  | Typical Duration                              |
| --------------------- | --------------------------------------------- |
| **Brand Approval**    | Minutes up to 24 hours                        |
| **Secondary Vetting** | Up to 7 days (if info requires manual review) |
| **Campaign Approval** | 1–7 business days                             |