Sector 1607 was a region of space. This sector contained the Devolin system.
In 2358, the USS Pegasus was reported as lost in this sector.
In 2370, the USS Enterprise-D rendezvoused with the USS Crazy Horse in Sector 1607 for the transfer of Admiral Erik Pressman. The Enterprise-D would discover the wreckage of the Pegasus and recovered an illegal cloaking device. (TNG: "The Pegasus")