Check an SMS text or shortcode before you tap that link.
Scammers rely on SMS to send fake delivery notices, bank alerts, and urgent warnings from 5-digit shortcodes or 1-800 numbers. Paste any text message or shortcode below for an instant safety check.
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Share a suspicious SMS to the IsThisSpam app for a verdict before you reply, tap a link or send money.
On iPhone, message filtering needs to be switched on in Settings and only covers eligible messages from unknown senders.
Why SMS text messages & shortcodes deserve extra scrutiny
Text messages feel personal and urgent. Without detailed email headers, localized numbers, 5-digit shortcodes, or spoofed sender names are often used to make dangerous messages look real.
The text comes from an unexpected 5- or 6-digit shortcode
The sender claims a package cannot be delivered
The message warns of a locked bank or card account
You are asked to tap a shortened URL (bit.ly, tinyurl)
What IsThisSpam checks before you trust a sender
Quick verdicts are useful, but the real value is understanding why something looks safe, uncertain, or risky.
Shortcode & Sender ID verification
We analyze whether the shortcode or display name aligns with legitimate enterprise messaging channels.
Impersonation patterns
Scammers use terms like 'Support Team' or 'Security Alert' to panic recipients into fast compliance.
High-pressure urgency tactics
Demands for action 'within 24 hours' or legal action threats are standard high-risk smishing indicators.
Context from embedded links
We inspect extracted domain reputation and shortened link paths to uncover malicious phishing portals.
Related guides
Use the checker for the fast answer, then read the deeper guidance for recurring scam patterns.
How to Identify a Fake Delivery Text
Why You Shouldn't Click Links in Texts
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FAQ
These are the questions people usually ask right before they click, reply, or pay.
Stay safer when the next suspicious message arrives.
Use IsThisSpam whenever a text, sender, link or attachment feels suspicious.