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Bellcore (Bell Communications Research) provides certain centralized research and standards coordination for the regional Bell operating companies (RBOC)s. It also coordinates security and emergency preparedness for the U.S. government. Bellcore was formed in 1984 when AT&T was broken up into the seven RBOCs. Bellcore's budget comes from the RBOCs. Bellcore coordinated the design for the Advanced Intelligent Network (AIN).