My tracking of nearby ADSB-out aircraft using my local AWACS server.
Being within the KIAH Mode-C ring, all planes are required to have a squawkable transponder for the primary ATC radar.
Unfortunately, most of these planes are invisible without the 1090MHz transponder which allows for a MLAT(multi-lateration)
calculation with multiple base stations. Sometimes an ADSB-IN aircraft is flying nearby which will activate
a ADSB-R (rebroadcast). The traffic within several miles and within 5000' of the aircraft will be rebroadcast meaning
that my AWACS system can now see the ground traffic at major airports as well as random signatures for the remainder of
the transponder only flights.
UAL/UA - United Airlines : 262
ASH/YV - Mesa Airlines : 223
SWA/WN - Southwest Airlines : 214
AAL/AA - American Airlines : 141
UCA/C5 - CommutAir : 134
SKW/OO - SkyWest : 107
DAL/DL - Delta Air Lines : 73
ENY/MQ - Envoy Air : 55
NKS/NK - Spirit Airlines : 49
FDX/FX - Federal Express : 37
UPS/5X - United Parcel Service : 36
EJA/1I - NetJets : 32
LXJ/ - Flexjet : 17
JBU/B6 - JetBlue Airways : 16
RPA/RW - Republic Airlines : 12
ASA/AS - Alaska Airlines : 11
VTM/ - Aeronaves TSM : 11
SWQ/ - Swift Air (Interstate Equipment Leasing) : 10
GTI/5Y - Atlas Air : 9
LET/ - Aerolineas Ejecutivas : 9
SCX/SY - Sun Country Airlines : 9
VOI/Y4 - Volaris : 9
XOJ/ - Xojet : 8
CJT/W8 - Cargojet Airways : 7
EDV/9E - Endeavor Air : 7
FFT/F9 - Frontier Airlines : 6
GAJ/ - Wheels Up - Gama Aviation : 6
CWG/ - Wing Aviation : 6
AJI/ - Ameristar Jet Charter : 5
BYA/ - Berry Aviation : 5
QTR/QR - Qatar Airways : 5
JTL/ - Jet Linx Aviation : 5
SLI/5D - AeroMexico Connect : 4
ANA/NH - All Nippon Airways : 4
VIV/VB - Aeroenlaces Nacionales : 4
KLM/KL - KLM Royal Dutch Airlines : 4
CKS/K4 - Kalitta Air : 4
THY/TK - Turkish Airlines : 4
AMX/AM - AeroMéxico : 3
LBQ/ - Quest Diagnostics : 3
JUS/U7 - USA Jet Airlines : 3
ABX/GB - ABX Air : 2
AFR/AF - Air France : 2
AJT/M6 - Amerijet International : 2
TNO/ - Aerotransporte de Carga Union : 2
RCH/MC - Air Mobility Command : 2
BAW/BA - British Airways : 2
BVN/ - Baron Aviation Services : 2
UAE/EK - Emirates : 2
EJM/ - Executive Jet Management : 2
RDK/ - Memorial Hermann Hospital System : 2
FFL/ - ForeFlight : 2
CLX/CV - Cargolux : 1
COM/OH - Comair : 1
EVA/BR - EVA Air : 1
FLC/ - FINFO Flight Inspection Aircraft : 1
DCM/ - FLTPLAN : 1
GLF/ - Gulfstream Aerospace : 1
JAF/JF - Jetairfly : 1
KAL/KE - Korean Air : 1
GEC/LH - Lufthansa Cargo : 1
PKW/ - Sierra/Pak West Airlines : 1
EGS/ - Eagles Airlines : 1
YEL/YE - Yellowtail : 1
XSR/ - Executive AirShare : 1
Since it's more expensive to add ADSB-in capability and not required by the FAA many planes don't have this.
Fortunately, using almost the same setup as my home AWACS system Stratux
can supplement your electronic flight bag. I'm currently using Avare
with the external i/o plugin to connect to the
homebuilt stratux.