Korean slang profile
USIM
usim
Mobile-subscriber identity module
An abbreviation for a module that stores mobile-subscriber information for uses such as subscriber authentication. It usually refers to the card inserted into a mobile phone.
- Expanded form
- Universal Subscriber Identity ModuleUniversal Subscriber Identity Module
- Other spellings
- 유심
- Earliest source found
- Jan 5, 2006
- Documented trend period
- Not verified
This is the earliest source we have verified, not the date the term was coined.
01Examples, with English translations
- Example by Julimmal
새 휴대전화에 USIM을 옮겨 넣었다.
I moved my USIM into my new phone.
02Documented history
- 2006-01-05This source introduced “USIM” and explained its meaning.[1]
03Origin & word formation
Electronic Times in 2006 introduces a USIM card as a smart card used for mobile-subscriber authentication, among other functions. The English expansion was checked in the abbreviation index of the 2008 『국가정보화백서』. The abbreviation’s first user has not been identified.
Evidence for the origin explanationLow
The 2006 article spells the English expansion with Identify, while the official 2008 white paper uses Identity. The expansion follows the official white paper, with the spelling difference recorded.
04Sources
Original titles and links are preserved. An English translation does not replace the original source.
- [IT키워드] USIM카드 (전자신문)Published Jan 5, 2006Original source checked Nov 14, 2026
- 2008국가정보화백서 (한국정보사회진흥원)Published 2008Original source checked Nov 14, 2026