The "SECTOR" callsign is the Customs National Law Enforcement Communications Center (NLECC) in Orlando FL. SECTOR has the ability to communicate with each and every remote USCS repeater in the United States through landline links. When someone keys their radio, they are connected to the appropriate geographic console, which is monitored constantly by a Sector Enforcement Specialist (SES) in Orlando. Other callsigns to keep in mind: - ALPHA callsigns are ICE agents. - LIMA callsigns are US Customs Air Assets, aircraft, or helos - INDA callsigns are US Customs Inspectors - The LIMA-950 callsign is the US Customs air operations center (C3I West) at March AFB in California. This center also has callsign HAMMER on HF, and is occasionally heard and used on the VHF network. - The LIMA-150 callsign is a local AOB (Air operations base) in Texas.