NOC

from WordNet (r) 3.0 (2006)

NOC
    n 1: an undercover agent who is given no official cover

from The Free On-line Dictionary of Computing (8 July 2008)

Network Operations Center
NOC

   (NOC) A location from which the operation of a {network} or
   {internet} is monitored.  Additionally, this center usually
   serves as a clearinghouse for connectivity problems and
   efforts to resolve those problems.

   See also {Network Information Center}.

   (1994-12-01)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

NOC
       Network Operations Center