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 : 519
SWA/WN - Southwest Airlines : 356
ASH/YV - Mesa Airlines : 166
UCA/C5 - CommutAir : 115
DAL/DL - Delta Air Lines : 87
AAL/AA - American Airlines : 86
SKW/OO - SkyWest : 77
NKS/NK - Spirit Airlines : 48
FFT/F9 - Frontier Airlines : 29
EJA/1I - NetJets : 28
VOI/Y4 - Volaris : 19
LXJ/ - Flexjet : 16
ENY/MQ - Envoy Air : 15
VTM/ - Aeronaves TSM : 12
VIV/VB - Aeroenlaces Nacionales : 11
ATN/8C - Air Transport International : 11
ASA/AS - Alaska Airlines : 9
FDX/FX - Federal Express : 9
ACA/AC - Air Canada : 8
JBU/B6 - JetBlue Airways : 7
UPS/5X - United Parcel Service : 6
SLI/5D - AeroMexico Connect : 5
AMX/AM - AeroMéxico : 4
LET/ - Aerolineas Ejecutivas : 4
BAW/BA - British Airways : 4
HAL/HA - Hawaiian Airlines : 4
JIA/OH - PSA Airlines : 4
QTR/QR - Qatar Airways : 4
SCX/SY - Sun Country Airlines : 4
JUS/U7 - USA Jet Airlines : 4
WJA/WS - WestJet : 4
JSX/XE - JSX : 4
AFR/AF - Air France : 3
CLX/CV - Cargolux : 3
FRG/ - Freight Runners Express : 3
KLM/KL - KLM Royal Dutch Airlines : 3
RPA/RW - Republic Airlines : 3
THY/TK - Turkish Airlines : 3
XSR/ - Executive AirShare : 3
TAI/TA - Taca International Airlines : 3
ABX/GB - ABX Air : 2
ANA/NH - All Nippon Airways : 2
EVA/BR - EVA Air : 2
UAE/EK - Emirates : 2
DLH/LH - Lufthansa : 2
BOX/3S - Aerologic : 2
CNS/ - Cobalt Air : 2
SCM/ - American Jet International : 1
TAA/ - Aeroservicios de La Costa : 1
BYA/ - Berry Aviation : 1
CAY/KX - Cayman Airways : 1
CMP/CM - Copa Airlines : 1
EMD/ - Eaglemed (Ballard Aviation) : 1
EAL/EA - European Air Express : 1
HER/UD - Hex'Air : 1
GEC/LH - Lufthansa Cargo : 1
QFA/QF - Qantas : 1
LBQ/ - Quest Diagnostics : 1
YEL/YE - Yellowtail : 1
NCR/N8 - National Air Cargo : 1
EDV/9E - Endeavor Air : 1
CWG/ - Wing Aviation : 1
JTL/ - Jet Linx Aviation : 1
CAP/ - Civil Air Patrol : 1
TWY/ - Sunset Aviation, LLC : 1
ACW/ - SERVICIOS AEREOS ACROSS, S.A. DE C.V. : 1
CNV/ - US Navy Air Logistics Office : 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.