I saw the following 28 aircraft at Monterrey, Mexico MTY on Monday, September 9, 2019:
N304FE DC-10-30CF Federal Express (FedEx)
N727US 727-223F USA Jet Airlines
N845AM 737-852(WL) Aeromexico
N875AM 737-852(WL) Aeromexico
N893AT 717-2BD Delta Air Lines
XA-ACN ERJ-190-LR (ERJ-190-100 LR) Aeromexico Connect
XA-ALO ERJ-170-LR (ERJ-170-100 LR) Aeromexico Connect
XA-ALW ERJ-190-LR (ERJ-190-100 LR) Aeromexico Connect
XA-AMM 737-852(WL) Aeromexico
XA-AMV 737-852(WL) Aeromexico
XA-GAE ERJ-190-LR (ERJ-190-100 LR) Aeromexico Connect
XA-GAH ERJ-190-AR (ERJ-190-100 IGW) Aeromexico Connect
XA-GAM ERJ-170-STD (ERJ-170-100) Aeromexico Connect
XA-GAQ ERJ-170-STD (ERJ-170-100) Aeromexico Connect
XA-MBA A320-214(WL) Interjet
XA-MFH ERJ-145-LR Transportes Aéreos Regionales (TAR)
XA-PGA A321-251N(WL) Interjet
XA-PPY Superjet 100-95B Interjet
XA-UZW 737-3H4(WL) Magnicharters
XA-VAB A320-232 Viva Aerobus
XA-VAM 737-752(WL) Aeromexico
XA-VAQ A320-232(WL) Viva Aerobus
XA-VCE 737-3H4(WL) Magnicharters
XA-VCI 737-3H4(WL) Magnicharters
XA-VCU -MD-83(SF) Aeronaves TSM
XA-VIN A320-271N(WL) Viva Aerobus
XA-VIQ A320-271N(WL) VivaAerobus
XA-VRF A320-271N(WL) Volaris