is a sender ID often used by third-party messaging services to deliver automated SMS notifications, including OTPs and verification codes. Truecaller
If "nxsms code" refers to using Nexmo (Vonage) for SMS services in a .NET application, here's a basic example:
| Code Prefix | Meaning | Action Required | | :--- | :--- | :--- | | NXSMS | Generic gateway label glitch | Use the digits; ignore the word | | ### (three hashes) | Carrier filtering failure | Resend the message | | CME Error 302 | SIM memory full | Delete old texts | | SMSC Error 500 | Network timeout | Turn on Airplane mode, then off | | +0000000000 | No caller ID allowed | This is likely a spam spoof | nxsms code
A scammer contacts you (often through a platform like Craigslist or Facebook Marketplace) claiming they want to buy your item but need to "verify" you aren't a bot. They tell you they are sending a code and ask you to read it back to them. That code is actually for
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Reverse Engineering the nxsms Format
Below is an in-depth guide on what an NXSMS code is, why you might have received one, and how to handle it safely. What is NXSMS?