Messaging Services

Registration

• Registration form for US SMS/MMS 10DLC, Toll Free Verified Sender or Short Code Program.

10DLC (10-digit Long Code) Information

• Message throughput (MPS) and Trust Scores for A2P 10DLC in the US
• What fees are associated with 10DLC Campaigns?
• What are per-message carrier surcharges?
• How do I fully disconnect a 10DLC phone number?
• 10DLC Vetting Best Practices (Opt-In/Out/Help & Privacy Policy)
• What are fines that may be assessed for 10DLC violations?

See all 8 articles

FAQ

• T-Mobile Non-Compliance Fees "Sev-0's"
• SMS Length Limits and Message Splitting by Encoding
• Pros and Cons of 10DLC Messaging, Toll-Free Messaging, and Short Code Messaging
• What is considered Prohibited Content?

Troubleshooting

• I am unable to provision my Bandwidth, Telnyx, or ISP Tel numbers for messaging!
• Common DLR Error Codes

Toll-Free Verified Sender Information

• Toll-Free SMS and MMS best practices and information for using in the US and Canada
• Toll-Free Message Verification for US & Canada
• New Toll-Free SMS/MMS Verified Sender Requirements

Carrier Codes of Conduct

• CTIA Short Code Handbook
• CTIA Best Practices and Guidelines
• T-Mobile Code of Conduct
• AT&T Code of Conduct