Alerts and notifications
Order updates, appointment reminders, delivery alerts and time-sensitive notices.
A2P 10DLC
A2P 10DLC numbers and registration
Reach US customers with application-to-person messaging from local 10-digit numbers—built for notifications, customer care and marketing.
Overview
What is A2P 10DLC?
A2P 10DLC stands for Application-to-Person 10-Digit Long Code. It lets businesses send SMS from US local 10-digit numbers instead of short codes or toll-free numbers.
US carriers require brand and campaign registration before application traffic can be sent at scale. Registration helps verify who is sending, how recipients opted in, and what type of messages they will receive.
Registered traffic is better aligned with carrier requirements and can improve deliverability for time-sensitive notifications, support conversations and opt-in campaigns.
10Digit local US numbers
2-wayCustomer conversations
SMSApplication-to-person messaging
Use Cases
Where A2P 10DLC fits
Support everyday messages that customers expect from a local business number.
Customer care
Two-way conversations for support, scheduling and account questions.
Marketing and promotions
Opt-in campaigns, offers and re-engagement messages with clear consent.
One-time passcodes
Verification codes and account-security messages where the use case permits.
Why A2P 10DLC
A familiar local number, built for application traffic
Combine local recognition with a registered messaging program.
Local presence
A US 10-digit number feels familiar to recipients and reinforces a local identity.
Registered delivery
Brand and campaign registration aligns traffic with carrier requirements.
Scalable programs
Support growing message volumes across teams and use cases.
Two-way engagement
Customers can reply, opt out and continue the conversation.
Getting Started
From number selection to live messaging
Choose your numbers
Select US local 10-digit numbers for your brand or campaigns.
Register brand and campaign
Submit business details and describe how recipients opted in.
Build your use cases
Configure notifications, support flows or marketing journeys.
Start sending
Launch with opt-out handling, monitoring and delivery reporting.
Compliance
Prepare a program that carriers can approve
Before you launch, make sure your messaging program meets carrier and local requirements:
- Collect clear opt-in consent and keep records of how each recipient agreed.
- Honor STOP, HELP and other opt-out requests promptly.
- Keep content compliant with carrier policies and applicable local rules.
- Match message throughput to your registration and use case.
Registration requirements, throughput and content rules depend on the carrier, campaign type and current policies. We can help review your registration and messaging flows; carrier approval remains subject to their review.
FAQ
Common questions about A2P 10DLC
How does 10DLC differ from toll-free messaging?
10DLC uses local US 10-digit numbers, while toll-free messaging uses 800-style numbers. Both can support application-to-person traffic, but registration, throughput and content rules differ.
Do I need to register my 10DLC number?
Yes. US carriers require brand and campaign registration for A2P 10DLC traffic. We can guide you through the information required for your use case.
How long does registration take?
Review times vary by carrier and campaign. We will confirm current timelines during onboarding.
What does an A2P 10DLC program cost?
Pricing depends on numbers, registration requirements and message volume. Contact our team for a quote based on your use case.
Are there texting limitations?
Carrier filtering, throughput limits and content rules apply. Clear consent, accurate registration and proper opt-out handling improve deliverability.
Can I use 10DLC for marketing messages?
Yes, with documented opt-in consent and compliant content. Some carriers apply stricter review to marketing campaigns.
Get Started
Plan your A2P 10DLC rollout
Tell us about your use case, expected volume and target markets. We will help you review numbers, registration and messaging flows.