Does STIR/SHAKEN apply to SMS/text messaging? Nauman Qureshi November 23, 2021 20:41 Updated Currently, STIR/ SHAKEN applies to phone calls only. Related articles How will consumers be impacted by STIR/SHAKEN? What is STIR/SHAKEN? What are STIR/SHAKEN Attestation levels? What is Caller ID Spoofing? What are the different steps of the Porting Process?