The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2026
Filed:
Aug. 12, 2024
T-mobile Innovations Llc, Overland Park, KS (US);
Hugh Tyler Amick, Seattle, WA (US);
Sean Patrick Hoelzle, Collegeville, PA (US);
Deepak Jaiswal, Redmond, WA (US);
T-Mobile Innovations LLC, Overland Park, KS (US);
Abstract
A method of utilizing a SIM card as a security key for subscriber identity module (SIM) swap prevention is described. The method includes receiving, from a service provider, an initial one-time password (OTP) delivery request comprising an OTP message, a mobile station international subscriber directory number (MSISDN) destined to receive the OTP message, and a SIM indicator associated with the MSISDN; determining, based on the OTP delivery request, a current international mobile subscriber identity (IMSI) associated with the MSISDN; obtaining, from a datastore based on the SIM indicator associated with the MSISDN, an IMSI of record for the MSISDN; comparing the current IMSI associated with the MSISDN and the IMSI of record for the MSISDN; and determining, based on the comparing, whether to deliver the OTP message to the MSISDN or block delivery of the OTP message to the MSISDN.