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Numbers & Connectivity
10DLC, Toll-Free Numbers (TFN), Virtual Numbers
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Knowledge Base Articles
10DLC
(48 Articles)
Sinch A2P 10DLC Carrier Reach List
10DLC Compliance Requirements and Guidance
What is The Campaign Registry (TCR)?
What is 10DLC?
What is Snowshoeing?
Toll-Free Numbers (TFN)
(45 Articles)
What is a TFN (Toll-Free Number)?
TFN Verification Compliance Guidance
What opt-in documentation is required for Toll-Free sender verification?
Why was my Toll-Free Verification rejected and can I resubmit?
What are Delivery Receipts and are they available on TFN?
Virtual Numbers
(33 Articles)
Buying a number from Sinch
Supporting documentation for virtual numbers
Hosted Messaging for US and Canada Numbers
How can I activate my free number for testing?
Sinch Letter of Authorization for Toll-Free Number Porting (US)
US Short Codes
(12 Articles)
US Short Code Campaign Compliance Overview
US Short Code Brand Client and Content Provider Details
Sinch US Short Code Onboarding Overview
CTIA Short Code Monitoring Handbook
Sinch Short Code Carrier Reach List - North America