Take a listen to ZBW-CLIPR-July 19-1930Z - at elapsed time 9:15, 10:40, 16:50, 27:15 mins into the recording. They are mostly handoffs of Gnl aviation traffic, but the SWA502 was turning westbound (KISP-KTPA). But I also heard handoffs to ZNY 128.3...hmmm...