Telcordia Technologies, formerly Bellcore, is an American telecommunications company created in 1984 after the breakup of AT&T. It was split from the original Bell Labs as part of the negotiated consent decree with the US government, and served Research & Development and standards setting functions for the resulting seven Baby Bells.

In 1997, Telcordia was acquired by Science Applications International Corporation (SAIC). Stake in the company was subsequently sold in November 2004 to Providence Equity Partners and Warburg Pincus, who currently both hold equal stakes in the company.

The main business dealings consists in providing Operations and Support Systems (OSS) and Intelligent Network systems to telecommunications operators. Telcordia has customers in both the fixed line and wireless markets.