Registered to Cargo Aircraft Management (CAM) out of Wilmington, Delaware. I looked them up. Leasing company that seems to specialize in various Boeing freighters but their website is touting a 321 freighter too, with two in the pipeline for conversion. They handle conversion management and provide ACMI services also according to the web site. Amazon Prime, ATI, Omni and ABX and Cargojet are customers. I'm guessing that they own "Air Drake" also. The Canadian rapper has his "own" VIP B-767, managed by Cargojet. I discovered that just after assuming I had the baddest-a$$ executive jet on the Signature LAX ramp (Delta 757C) and thinking "that's a cute little jet" regarding the G-650 on the left when the Owl logo 767 pulled up on the right. Rappers and oil barons steal the thunder .... my superiority complex needed adjustment anyhow!

N156DL is not coming back to the Delta fleet, but delivering packages to a front porch near you, soon. It was registered to CAM in September 2021 and arrived in ATL on 12 November. This is a 30 year old airframe, one of the Gulf Air ships. If I recall correctly, their oddity was a lack of lav gauges and potable water gauges, always necessitating a call to ops to verify service. Maybe they had only one jump seat too, or am I thinking of Transworld 757s?