> ## Documentation Index > Fetch the complete documentation index at: https://plivo.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # US Messaging (10DLC, Toll-Free, Short Codes) > FAQs about US A2P messaging compliance, 10DLC registration, and toll-free verification Frequently asked questions about A2P messaging compliance in the US, including 10DLC registration and toll-free verification. *** ## What is required for A2P messaging in the US? US carriers require registration or verification for A2P (Application-to-Person) messaging: | Number Type | Registration | Throughput | Best For | | - | - | - | - | | **10DLC** | Brand + Campaign | 3.75-15+ MPS | General A2P | | **Toll-Free** | Verification | 25 MPS | High volume, 2FA | | **Short Code** | Application | 100+ MPS | Marketing, alerts | *** ## What is 10DLC? 10DLC (10-Digit Long Code) is the standard for A2P messaging on local US numbers. *** ## What is the 10DLC registration process? 1. **Register Brand** - Company information with TCR (The Campaign Registry) 2. **Register Campaign** - Use case and sample messages 3. **Link Numbers** - Associate phone numbers with campaign *** ## How to register a 10DLC brand on the Plivo console? ### Required Information | Field | Description | | - | - | | Legal business name | Official registered name | | EIN | Employer Identification Number | | Business address | Physical address | | Website | Business website URL | | Vertical | Industry category | *** ## What is Authentication+ for 10DLC Public Brands? Effective October 2024, public for-profit brands must complete Authentication+ verification through TCR. *** ## Why did my brand registration fail, and how can I fix it? | Status | Meaning | Action | | - | - | - | | Approved | Ready for campaign registration | Proceed | | Failed | Issues with submitted info | Review feedback, resubmit | Review the feedback from TCR and correct the identified issues before resubmitting. *** ## How to register a 10DLC campaign on the Plivo console? ### Campaign Types | Type | Use Cases | | - | - | | **Standard** | Marketing, notifications, alerts | | **Special** | Political, charity, emergency | | **Low Volume** | Mixed use, under 6,000 msgs/month | ### Required Information * Use case description * Sample messages * Opt-in method * Opt-out handling *** ## What is the 10DLC campaign vetting process? Campaigns undergo third-party vetting. Declined campaigns receive feedback for resubmission. *** ## Why was my campaign registration declined, and how can I fix it? Review the feedback from TCR/carrier, correct the identified issues, and resubmit with updated information. *** ## How do I set up 10DLC for multi-brand companies? For companies with multiple brands (e.g., parent company with subsidiaries): * Register each brand separately * Link campaigns to appropriate brand * Maintain consistent legal entity information *** ## How to set up email alerts for your 10DLC submissions? 1. Navigate to **Messaging > 10DLC** 2. Configure notification preferences 3. Receive updates on approvals/rejections *** ## How to link phone numbers with 10DLC campaigns? Associate your phone numbers with registered campaigns through the Plivo console after campaign approval. *** ## How can users opt in to receive messages in the US? ### Supported Opt-In Methods | Method | Description | | - | - | | **Web form** | User enters phone number on website | | **Keyword** | User texts keyword to your number | | **Paper form** | Physical sign-up sheet | | **Verbal** | Phone call consent (recorded) | | **Point of sale** | In-person consent at checkout | *** ## What is the Toll-Free Verification Process? 1. Purchase toll-free number 2. Submit verification request 3. Carrier reviews submission 4. Receive approval or rejection feedback *** ## How to submit Toll-free verification on the Plivo console? 1. Navigate to **Messaging > Toll-free Verification** 2. Click **Submit Toll-free Verification** 3. Select profile 4. Complete required fields 5. Submit ### Required Information | Field | Description | | - | - | | Business name | Legal business name | | Business type | Direct brand or ISV/Reseller | | Use case | How you'll use messaging | | Sample messages | Example message content | | Opt-in method | How users consent | | Website | Business website | *** ## Why was my Toll-free verification request rejected, and how can I fix it? | Status | Meaning | Action | | - | - | - | | Approved | Ready to send | Begin messaging | | Rejected | Issues identified | Review feedback, resubmit | Review the feedback, provide clear and accurate business information, and resubmit. *** ## What are the best practices for Toll-free verification? * Provide clear, accurate business information * Include realistic sample messages * Document opt-in methods clearly * Respond promptly to carrier inquiries *** ## What about Short Codes? For high-volume messaging, see [Short Codes](https://plivo.com/docs/faq/messaging/short-codes.md) for complete details on: * US, Canada, Brazil, and New Zealand short codes * Application process and requirements * Pricing and throughput * Compliance and audits *** ## What is the throughput comparison for US numbers? | Number Type | Registration Status | SMS Throughput | | - | - | - | | Long Code | Unregistered | 1 MPS, 2,000/day limit | | Long Code | 10DLC Low Volume | 0.2-0.75 MPS | | Long Code | 10DLC Standard | 3.75-15+ MPS | | Toll-Free | Verified | 25 MPS | | Short Code | Approved | 100+ MPS | *** ## What is the throughput for Canada numbers? | Number Type | SMS Throughput | | - | - | | Long Code | 15/minute | | Toll-Free | 25/second | | Short Code | 10/second | *** ## Why are my messages being filtered? * Verify registration is complete * Check message content for spam triggers * Ensure proper opt-in documentation *** ## Why is my throughput low? * Complete 10DLC registration for higher limits * Consider toll-free or short code for high volume *** ## Related Resources * [Messaging API Overview](https://plivo.com/docs/faq/messaging/messaging-api.md) * [SMS](https://plivo.com/docs/faq/messaging/sms.md) * [Short Codes](https://plivo.com/docs/faq/messaging/short-codes.md) * [10DLC Documentation](https://plivo.com/docs/messaging/a2p-10dlc/quickstart) * [Toll-Free Verification](https://plivo.com/docs/messaging/api/toll-free-verification.md)