Basic life support call at apartment on Massachusetts Ave NW Heard on: Washington DC Fire EMS 00:11 00:00 Ambulance 21 responding, BLS call, (number withheld) Massachusetts Avenue Northwest, unit (number withheld). Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 Ambulance 21 responding, BLS call, (number withheld) Massachusetts Avenue Northwest, unit (number withheld). 00:04 Ambulance 21 responding, BLS call, (number withheld) Massachusetts Avenue Northwest, cross street is NC Park Drive, operate on 12. 2026-11-12 02:22 UTC Medical Emergency Avalon at Foxhall, 4200 Massachusetts Ave NW #609, Washington, DC 20016 View on map