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 : 569
SWA/WN - Southwest Airlines : 418
AAL/AA - American Airlines : 157
ASH/YV - Mesa Airlines : 156
UCA/C5 - CommutAir : 122
SKW/OO - SkyWest : 117
DAL/DL - Delta Air Lines : 97
NKS/NK - Spirit Airlines : 91
EJA/1I - NetJets : 44
FFT/F9 - Frontier Airlines : 41
AMX/AM - AeroMéxico : 25
JBU/B6 - JetBlue Airways : 25
LXJ/ - Flexjet : 20
ACA/AC - Air Canada : 16
VIV/VB - Aeroenlaces Nacionales : 16
VOI/Y4 - Volaris : 16
FDX/FX - Federal Express : 15
SLI/5D - AeroMexico Connect : 13
ASA/AS - Alaska Airlines : 11
UPS/5X - United Parcel Service : 11
ENY/MQ - Envoy Air : 11
AAY/G4 - Allegiant Air : 10
WJA/WS - WestJet : 10
CJT/W8 - Cargojet Airways : 9
ABX/GB - ABX Air : 7
JTL/ - Jet Linx Aviation : 7
VTM/ - Aeronaves TSM : 6
GTI/5Y - Atlas Air : 6
SCX/SY - Sun Country Airlines : 6
ATN/8C - Air Transport International : 5
LET/ - Aerolineas Ejecutivas : 5
BAW/BA - British Airways : 5
EJM/ - Executive Jet Management : 5
DLH/LH - Lufthansa : 5
UAE/EK - Emirates : 4
TAI/TA - Taca International Airlines : 4
CWG/ - Wing Aviation : 4
JSX/XE - JSX : 4
ANZ/NZ - Air New Zealand : 3
SCM/ - American Jet International : 3
CMP/CM - Copa Airlines : 3
RAX/ - Royal Air Freight : 3
THY/TK - Turkish Airlines : 3
JUS/U7 - USA Jet Airlines : 3
FTH/ - Mountain Aviation : 3
AFR/AF - Air France : 2
AJI/ - Ameristar Jet Charter : 2
ANA/NH - All Nippon Airways : 2
CLX/CV - Cargolux : 2
EVA/BR - EVA Air : 2
KLM/KL - KLM Royal Dutch Airlines : 2
QTR/QR - Qatar Airways : 2
XSR/ - Executive AirShare : 2
CNS/ - Cobalt Air : 2
TWY/ - Sunset Aviation, LLC : 2
ACW/ - SERVICIOS AEREOS ACROSS, S.A. DE C.V. : 2
AMF/A8 - Ameriflight : 1
NGF/ - Angel Flight America : 1
XAA/ - Aeronautical Radio Inc : 1
TSC/TS - Air Transat : 1
BYA/ - Berry Aviation : 1
EMD/ - Eaglemed (Ballard Aviation) : 1
DCM/ - FLTPLAN : 1
FRG/ - Freight Runners Express : 1
PAT/ - Department of the Army, Priority Air Transport : 1
QFA/QF - Qantas : 1
LBQ/ - Quest Diagnostics : 1
RPA/RW - Republic Airlines : 1
YEL/YE - Yellowtail : 1
ROU/RV - Air Canada Rouge : 1
SBE/ - World Class Aviation : 1
JAS/ - Jet Aviation Flight Services : 1
ASP/SP - Aspen Airways : 1
CAP/ - Civil Air Patrol : 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.