Sending SMS messages to your customer base in the U.S. can seem complex with multiple options available such as Short Codes, Long Codes (10DLC), and Toll-Free Numbers. This article will walk you through each option, highlighting their unique features, benefits, and ideal use cases to help you make an informed decision.

SMS Short Codes

What is an SMS Short Code?

Short Codes are 5-6 digit numbers used for high-volume A2P (Application-to-Person) messaging in the U.S. and Canada. They are easy to remember and can be an integral part of your brand identity.

Key Features:

• Digit Length: 5-6 digits.
• Messaging Model: A2P.
• Voice Enabled: No.
• Requires Brand Vetting: Yes.
• Requires Campaign Approval: Yes.
• Provisioning Time: 3-6 weeks.
• Throughput: 10-500 msg/sec.
• Delivery Receipts (DLRs): Yes.
• Keywords Required: Opt-in/out, Help.
• Carrier and Industry Endorsement: Yes.

Ideal For:

• High-volume messaging.
• Immediate message delivery.
• Building brand recognition.
• Use cases like marketing blasts, fraud alerts, and two-factor authentication.

10-Digit Long Codes (10DLC)

What is a 10DLC?

10-Digit Long Codes (10DLC) use local phone numbers associated with your business, supporting both voice services and SMS.

Key Features:

• Digit Length: 10 digits.
• Messaging Model: A2P and P2P.
• Voice Enabled: Yes.
• Requires Brand Vetting: Yes.
• Requires Campaign Approval: Yes.
• Provisioning Time: 7-10 business days; Special Cases: 3-4 weeks.
• Throughput: Up to 75 msg/sec with approval.
• Delivery Receipts (DLRs): No handset DLR, SMSC DLR in most of North America.
• Keywords Required: Opt-in/out.
• Carrier and Industry Endorsement: Yes.

Ideal For:

• Businesses needing local presence.
• Two-way conversations.
• Avoiding spam filters with carrier campaign registration.

Toll-Free Numbers

What is a Toll-Free Number?

Toll-free numbers are recognizable numbers with distinct three-digit area codes, available in the U.S. and Canada. They support all types of A2P messaging and are excellent for customer service and marketing communications.

Key Features:

• Digit Length: 10 digits.
• Messaging Model: A2P.
• Voice Enabled: Yes.
• Requires Brand Vetting: No.
• Requires Campaign Approval: Yes.
• Provisioning Time: 1-5 business days.
• Throughput: Standard 10 msg/sec; higher with approval.
• Delivery Receipts (DLRs): Yes.
• Keywords Required: Stop, Unstop (network managed).
• Carrier and Industry Endorsement: Yes.

Ideal For:

• Maximizing reach across the U.S. and Canada.
• High-trust messaging channels.
• Customer service and feedback.

Choosing the Right Option

Consider Your Specific Requirements

Who do you want to reach?

• Short Codes: Best for nationwide engagement and high-volume interactions.
• 10DLC: Ideal for local presence with area-code-specific numbers.
• Toll-Free Numbers: Great for both U.S. and Canada reach.

What features do you need?

• Calls and Text: 10DLC and Toll-Free Numbers support both.
• Free to End User (FTEU): Only Short Codes support this.

How many messages will you be sending?

• High Volume: Short Codes (up to 500 mps or more).
• Moderate to High Volume: Toll-Free Numbers and 10DLC with carrier approval.

Speed to Market:

• Fast Setup: 10DLC and Toll-Free Numbers (a few days).
• Rigorous Approval: Short Codes (3-6 weeks).

Comparison Table

Getting Started with SMS Messaging

Choosing a number for sending and receiving texts is a critical step in opening a new communication channel with your customers. Need more help deciding? Explore our product pages on Short Codes, 10DLC, and Toll-Free Numbers or contact us to discuss your specific needs. We’re here to help you succeed!