Nov 13 (Reuters) - Nippon Telegraph and Telephone Corp
* Says co’s unit NTT Communications Corp signs agreement to acquire 100 percent stake in U.S.-based firm Secure-24 Intermediate Holdings, Inc (target company) on Nov. 13 (U.S. time)
* Says target company is mainly engaged in managed IT service business
* Other details are not disclosed
Source text in Japanese: goo.gl/ewUdA7
Further company coverage: (Beijing Headline News)