Scam ID & Scam Block

Easily identify and block calls from likely scammers with Scam ID and Scam Block.




Scam ID and Scam Block are free of charge with your T-Mobile postpaid plan. You can turn them on or off at any time.

  • Scam ID displays "Scam Likely" on your screen when calls come in from likely scammers on both smartphones and feature phones.
  • Scam Block allows you to block Scam Likely calls.


Additional info

  • Network level protection has been added to stop the increasingly common “Neighborhood Spoofing” and prevent hijacked numbers (where scammers temporarily match the area code and 3-digit prefix of the person they are targeting) from reaching your phone.
  • Help us improve these services by reporting an improperly identified call.


Turn on/off Scam ID & Scam Block

Click the button below to update Scam ID and/or Scam Block preferences.




Anonymous callers

The FCC mandates that mobile carriers allow callers the ability to block their caller ID information and place anonymous calls. T-Mobile is obligated to honor the privacy of the caller in these circumstances. T-Mobile can't block anonymous calls or override the privacy choice of the caller, but you may choose not to accept them. To make an anonymous call yourself, dial *67 before dialing the number you are calling.


For more information about privacy and security, please see our Privacy Center.


Caller Verified enhancement (STIR/SHAKEN)

  • New FCC standards of STIR (Secure Telephony Identity Revisited) and SHAKEN (Secure Handling of Asserted information using toKENs) have been adapted to help fight scam callers industry-wide.
  • As of January 7, 2019 T-Mobile has begun supporting Caller Verified Enhancement, a new technology aimed at reducing spoofed calls to customers.
  • Spoofed calls occur when a scammer temporarily hijacks a number to match the area code and prefix of the person's phone number being targeted. Current protection apps only block known scam numbers, not spoofed calls.
  • T-Mobile is first to market with this technology, currently only available on the Samsung Note9 (with the latest security update launched January 6, baseband version N960USQU1ARK5), and only for T-Mobile to T-Mobile calls. Other devices will follow later this year.
  • Calls marked as verified have an on-screen display when a call has been verified. Non-verified calls or calls from customers of other mobile carriers continue to come in as not verified.
  • T-Mobile is working with our phone manufacturers to provide customers with as much protection as possible, free of charge.