PROTECT YOUR BRAND

Stop fraudsters from impersonating your brand with SMS SenderID Protection

Lock your SenderID with mobile operators so only your authorized messages can be delivered. Sinch SMS SenderID Protection blocks spoofed traffic at the network level—before it ever reaches your customers—preserving brand trust and message integrity.

Request SenderID Protection
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Join over 190,000 businesses, including 8 of the 10 largest tech companies in the world

THE SINCH DIFFERENCE

Premium, operator-level security that stops SMS spoofing

Enterprise brands choose Sinch for proactive defense that does more than just detect smishing— it stops it before it starts. SMS SenderID Protection works directly with operators to verify your SenderID, block spoofed traffic, and help you maintain customer trust.

Keep your brand reputation spotless

Block impersonation at the network level so customers only ever see verified messages from you, not fraudsters.

Keep your customers safe

Stop SMS phishing scams that cause financial losses and support headaches, while helping meet data-protection requirements.

Make messages count 

Whitelist your SenderID with operators so every outbound SMS is authenticated and unauthorized traffic is stopped before delivery.

PREVENT IMPERSONATION

Stop smishing before your customers ever see it

Your reputation takes years to build but minutes to damage. SMS SenderID Protection helps keep it safe by locking your SenderIDs directly with operators, so unauthorized messages are blocked before they reach inboxes.

  • Network-level fraudulent traffic blocking

  • Direct operator registration of your SenderIDs

  • 24/7 reputation protection

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TOTAL CONTROL

Stay in full control over every outbound message

With direct operator integrations, only messages sent through Sinch are accepted. Every outgoing message is authenticated, and coordinated network-level blocking stops spoofed traffic across all participating carriers in the country—giving you end-to-end control.

  • Operators whitelist your identity so only authorized traffic is accepted

  • Spoofed messages are stopped across all participating carriers

  • We handle registration, verification, and operator coordination

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REAL-WORLD IMPACT

How brands rely on SMS SenderID Protection

Financial services

Keep customers safe from fake transaction alerts and verification scams while meeting strict security audit requirements.

E-commerce and retail

Send secure order confirmations and delivery notifications so shoppers always trust the texts that guide their purchases.

Logistics

Keep package tracking updates authentic, avoiding expensive misdeliveries and frustrated customer calls.

Enterprise security

Support internal compliance requirements by eliminating SMS spoofing risks across every communication touchpoint.

EXPANDING SENDER ID COVERAGE

See where SMS SenderID Protection can keep your brand secure

Sinch SMS SenderID Protection is currently available in the Nordics, parts of the Baltics, the Netherlands, and Switzerland, with more markets on the way.

Unlike North America, where brand and campaign registration are required, these European markets have different rules.

Our SenderID Protection service is designed for any brand sending messages into these specific regions or operating within them. It lets you directly register and lock your SenderID with mobile operators, so you can proactively block smishing threats before they can damage your brand’s identity and compromise customer trust. 

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SERVICE HIGHLIGHTS

Everything you get with SMS SenderID Protection

Fully managed SenderID registration

Sinch takes care of every step of registering and locking your SenderID with participating operators.

Direct MNO integration

Our unique, direct relationships with mobile network operators block fraud at the source.

Proactive, network-level blocking

Fraudulent messages are stopped before delivery, not just detected after.

Country-wide coordination

Unified protection across all participating carriers in each supported market.

Expert SenderID strategy

Get help identifying and prioritizing the SenderIDs most at risk.

Premium managed service

This isn’t a globally available self-service API, but a premium, managed service for select markets, with direct operator collaboration.

Regional availability

Currently active in the Nordics, areas of the Baltics, the Netherlands, and Switzerland, with more markets on the way.

Packaging and pricing

Managed service with pricing typically based on the number of SenderIDs protected per country or operator group.

SMS SenderId Protection FAQs

SMS SenderId Protection is currently available in the Nordics (Denmark, Norway, Sweden, Finland, Iceland), partially available in the Baltics (Estonia, Latvia, Lithuania), and some other European markets (The Netherlands and Switzerland with bespoke blocking), with more markets continuously being added. 

Protecting your SenderID is crucial for safeguarding your brand and customers from fraud. Without protection, criminals can “spoof” your SenderID to send messages that look like they’re from your company. This is especially common in regions like the Nordics, where phone number registration is less strict than in North America, making it easier for fraudsters to operate. These scams can damage your reputation and break down customer trust.

SenderID protection is a highly effective solution. For example, after a leading Nordic financial institution worked with Sinch to protect their SenderID, the fraudulent misuse of their brand name almost completely stopped.

A standard ID can be used by anyone. A protected SenderID is registered and locked with operators, so only your authorized traffic is delivered. 

We help register your important SenderIDs, whitelist them so only Sinch traffic is accepted, and operators block all spoofed messages at the network level before delivery. 

You need a Sinch account for A2P SMS, a list of SenderIDs you’d like to protect, and business operations in a supported country. 

Well-known enterprise and mid-sized businesses, especially banks, e-commerce, and logistics can benefit from proactive anti-fraud security. 

This is a managed service with a recurring subscription fee, typically based on the number of SenderIDs protected per country or operator group. Contact us today to learn more.

Talk to an expert about SenderID Protection today

Learn how SMS SenderID Protection can keep your brand’s SenderID safe by partnering with mobile operators to block spoofing and smishing before messages are delivered.