Shadowrun Wiki

System Identification Number or SIN refers to the method in which the UCAS tracks the activities of its registered citizens. These activities include criminal violations, licenses, legal business transactions, purchasing property, and similar activities. Because it ties together all of the information associated with a particular identity, a SIN is one part birth certificate, one part passport, one part credit history, and one part legal record.


The UCAS SIN was established in 2036 through the 14th Amendment to the UCAS Constitution, and several other nations followed suit with similar identification numbers. The term is probably derived from a combination of the old Social Identification Number (SIN) of Canada and Social Security Number (SSN) of the former United States.

While people without SINs are officially known as "probationary citizens", a person without a SIN is referred to colloquially as SINless, a term that usually denotes an illegal alien or criminal. "Probationary Citizens" have no legal rights and are not allowed to vote. When a criminal is caught and cannot be associated with a legal SIN, they are issued a temporary criminal SIN for processing and record keeping.

Most governments and corporations in the world have adopted SINs or similar methods of identification, and frequently share their databases with each other. The actual numbers that compose a SIN are typically generated by various pieces of personal information, such as birthdate, state of origin and initials. A SIN is often associated with a person's credstick or commlink for ease of use, so that the credstick/commlink's owner can easily show proof of identity.

Global SIN Registry

By the 2070s, most countries participate in the Global SIN Registry (GSR). To do so, more than 90 percent of their recognized citizens must be issued SINs, which have to contain at least name, birthdate, birthplace, gender, and metatype. (The GSR does not require a biometric sample attached to a nation’s SIN.)

Notably, much of Africa does not participate in the GSR; the exceptions being Egypt, Azania, Asante, and Kenya.(Feral Cities, p.71)


A generic SIN format is 12 alpha-numeric digits in three blocks of four digits.



A petty thief in Seattle:

  • 29Δ7–36fΔ972-lk83◊0mv (Runner's Companion, p.173)

Olaya Cartel members wanted/watched by the IDEA.(Ghost Cartels, p.57)

  • IDEA-344212/002-41 – Henry “the Diplomat” Uribe, age 63, former Colombian senator.
  • IDEA-344212/321-41 – Jaime “the Boss” Salazar, age 34, CEO of KondOrchid.
  • IDEA-344212/331-41 – Graciela “the Maker” Riveros, age 45, owner of Riveros Applied Mimetics

Wanted/watched by Lone Star in Seattle.(Ghost Cartels, p.85) †

  • LS-6733-KK#782-Sea-69 – Kaz Yakamura, age 34, a Komun’go Ring lieutenant.
  • LS-6733-KK#782-Sea-69 – Dae, age 27, stripper/escort turned fixer.
  • LS-8457-JT#782-Sea-57 – Chulsoon Gray-Wolf, age 37, a Komun’go Ring leader.
  • LS-8457-JT#782-Sea-57 – Caine, age 31, gang leader of The Ragers

Wanted/watched in Hong Kong.(Ghost Cartels, p.120)

Wanted/watched in the PCC.(Ghost Cartels, p.120)

  • 122-890787-PCC-62 – Tse Ye Mu, age 35, Koshari syndicate.

Wanted/watched by Aztlán.(Ghost Cartels, p.153)

  • AZT-7644//ERDD/344 – César da Silva, Avenger shaman with Primeira Vaga.

Presumably the repeated SINs are typos.


  • Shadowrun, Third Edition, page 238–239
  • Shadowrun, 20th Anniversary Edition, page 41, 266–267