01 — Regulations
Domestic vs International
Requirements differ by who is sending. Pick the scope that matches your business.
Sender ID registration is required for Slovakia. The current requirements are shown below as provided by the SMSala Sender ID team.
Sender capabilities
Alphanumeric Sender IDSupported
Short codeSupported
Long numericSupported
Sender formatAlphanumeric
Approval time7-Days
FeesNo Fees
ScopeDomestic company
Registration requirements
Registration requiredYes
Restrictions
Other Scams
Regulatory
Phishing
Explicit Content
Sending rules
URL restrictionsNo
OTPNo
Opt-out mandatoryNo
Allowed hours (Mon–Fri)N/A
02 — Operators
Operator regulations
7 networks carry SMS traffic in Slovakia. MNP is live in most markets — run an HLR lookup before routing.
O2MCC 231 · Registration required
OrangeMCC 231 · Registration required
Swan / 4kaMCC 231 · Registration required
TelekomMCC 231 · Registration required
UniphoneMCC 231 · Registration required
VonageMCC 231 · Registration required
ZSRMCC 231 · Registration required
03 — Compliance
Additional compliance notes
Country & operator-specific guidance maintained by the Sender ID team.
Requirements
Company name, Company website, Use case description,, Content Sample
Required documents
N/A
Need help registering your Sender ID?
Our compliance specialists assist with registration requirements, document review, operator approvals, and both domestic and international onboarding.
190+ countriesDomestic & international
Explore