Predominantly African-American prison gang formed in Folsom State Prison in the mid-1980s, with founding members from the San Francisco Bay Area. The name derives from Swahili 'kumi' (ten) and the sum of 415, which is also San Francisco's area code. Members use African symbols and Swahili language in their culture and tattoos. The gang operates in several California prisons and jails.
CRIMENET has extracted 4 linkages for this organization, including 4 cooperative ties across 3 organizations.