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 : 466
SWA/WN - Southwest Airlines : 339
AAL/AA - American Airlines : 139
DAL/DL - Delta Air Lines : 127
ASH/YV - Mesa Airlines : 126
UCA/C5 - CommutAir : 99
SKW/OO - SkyWest : 72
EJA/1I - NetJets : 54
FFT/F9 - Frontier Airlines : 27
FDX/FX - Federal Express : 26
LXJ/ - Flexjet : 22
VOI/Y4 - Volaris : 20
ASA/AS - Alaska Airlines : 19
JBU/B6 - JetBlue Airways : 19
UPS/5X - United Parcel Service : 17
ACA/AC - Air Canada : 12
ATN/8C - Air Transport International : 11
AMX/AM - AeroMéxico : 10
ENY/MQ - Envoy Air : 10
XAA/ - Aeronautical Radio Inc : 9
VTM/ - Aeronaves TSM : 9
VIV/VB - Aeroenlaces Nacionales : 8
JIA/OH - PSA Airlines : 7
SLI/5D - AeroMexico Connect : 6
AJT/M6 - Amerijet International : 6
CJT/W8 - Cargojet Airways : 6
EDV/9E - Endeavor Air : 6
JSX/XE - JSX : 6
BYA/ - Berry Aviation : 5
TAI/TA - Taca International Airlines : 5
ABX/GB - ABX Air : 4
AMF/A8 - Ameriflight : 4
CYO/ - Air Transport : 4
WJA/WS - WestJet : 4
BAW/BA - British Airways : 3
QTR/QR - Qatar Airways : 3
RAX/ - Royal Air Freight : 3
CWG/ - Wing Aviation : 3
JTL/ - Jet Linx Aviation : 3
ANA/NH - All Nippon Airways : 2
GTI/5Y - Atlas Air : 2
LET/ - Aerolineas Ejecutivas : 2
SCM/ - American Jet International : 2
EVA/BR - EVA Air : 2
UAE/EK - Emirates : 2
KLM/KL - KLM Royal Dutch Airlines : 2
CKS/K4 - Kalitta Air : 2
RPA/RW - Republic Airlines : 2
THY/TK - Turkish Airlines : 2
JUS/U7 - USA Jet Airlines : 2
FFL/ - ForeFlight : 2
TWY/ - Sunset Aviation, LLC : 2
AFR/AF - Air France : 1
AJI/ - Ameristar Jet Charter : 1
AWI/ZW - Air Wisconsin : 1
ANZ/NZ - Air New Zealand : 1
NGF/ - Angel Flight America : 1
TAA/ - Aeroservicios de La Costa : 1
CMP/CM - Copa Airlines : 1
EJM/ - Executive Jet Management : 1
DCM/ - FLTPLAN : 1
HER/UD - Hex'Air : 1
KFS/ - Kalitta Charters : 1
DLH/LH - Lufthansa : 1
SCW/ - Malmo Aviation : 1
SCW/TF - Malmö Aviation : 1
PAT/ - Department of the Army, Priority Air Transport : 1
QFA/QF - Qantas : 1
LBQ/ - Quest Diagnostics : 1
SCX/SY - Sun Country Airlines : 1
ROU/RV - Air Canada Rouge : 1
JAS/ - Jet Aviation Flight Services : 1
CVK/ - CAVOK Air : 1
EDG/ - Jet Edge : 1
SIS/ - Scott Aviation, LLC : 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.