Domestic vs International
Requirements differ by who is sending. Pick the scope that matches your business.
Sender ID registration is required for Finland. The current requirements are shown below as provided by the SMSala Sender ID team.
Sender capabilities
Registration requirements
Restrictions
Sending rules
Operator regulations
3 networks carry SMS traffic in Finland. 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
Get all Sender IDs pre-approved by Finnish MNOs (DNA, Elisa, Telia) before sending any traffic. Opt-in info must be available on operator's demand. Opt-out option must be inserted within the message. Under Trafficom regulation M28 L/2025, unregistered Sender IDs are replaced with Tuntematon (Unknown) as of May 4, 2026. From November 2, 2026, they are replaced with Roskaposti (Spam). For more information, see: New measures introduced to combat scam messages sent in the name of organisations. Required Information: Company name,Company website,Direct Contract,Protected Sender,Registered With Trafficom,Relationship between company and Sender,Use case description
Required documents
LOA DNA - From client to SMSala,LOA Elisa - From client to SMSala,LOA Telia - From client to SMSala
Need help registering your Sender ID?
Our compliance specialists assist with registration requirements, document review, operator approvals, and both domestic and international onboarding.