For a week in February (Feb. 19-26), the FCC will offer 67 local FM frequencies assigned to specific cities and towns. The commission postponed the filing window from December on the request of public media groups seeking more time to prepare. (Original announcement.) Though the frequencies will be reserved for noncommercial use, they remain unused in the commercial FM band — that is, above 92.1 MHz. The places on the list were chosen because at least 10 percent of their population now have access to no more than one noncomm radio service. The FCC will use a point system giving preference to local applicants with local boards and to those who don’t hold other licenses.