Domestic vs International
Requirements differ by who is sending. Pick the scope that matches your business.
Sender ID registration is required for United States. The current requirements are shown below as provided by the SMSala Sender ID team.
Sender capabilities
Registration requirements
Restrictions
Sending rules
Operator regulations
5 networks carry SMS traffic in United States. MNP is live in most markets — run an HLR lookup before routing.
Additional compliance notes
Country & operator-specific guidance maintained by the Sender ID team.
Requirements
The market is strictly regulated, with mandatory opt-in. Available Sender options include SC, 10DLC, and TFN. Campaigns must be registered for specific use case to avoid blocking by MNOs, Details Required Legal Company Name | DBA (Doing Business As) | Business Type | Business Registration Number | Business Website URL | Street Address | Country | City | State | Postal Code Opt-In Process – Step-by-Step Explanation Customer visits the website/app and selects the relevant service or submits their information. Customer provides their mobile number in the designated field. A clear consent/opt-in statement is displayed explaining that the customer agrees to receive SMS messages Example of clear opt-in wording: “By checking this box, I agree to receive SMS messages (Type of Message) from (company name)regarding account updates, transactions, and related services. Message and data rates may apply. Reply STOP to opt out and HELP for help.
Required documents
Registration form
Need help registering your Sender ID?
Our compliance specialists assist with registration requirements, document review, operator approvals, and both domestic and international onboarding.