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sensors Mode-S transponder

AA7DF3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7750A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA7DF3
Octal
52476763
Decimal
11,173,363
Country
US
Tail
N7750A
Type
B737
Broadcasting now · callsign SWA1555 · 40,975 ft
Flights observed
730
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Current position

AA7DF3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AA7DF3 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
SWA328 Southwest Airlines 9 2026-07-22
SWA1909 Southwest Airlines 8 2026-05-27
SWA4650 - 7 2026-07-08
SWA3811 Southwest Airlines 7 2026-07-25
SWA318 Southwest Airlines 7 2026-07-22
SWA7 Southwest Airlines 5 2026-05-15
SWA54 - 5 2026-06-26
SWA4639 Southwest Airlines 5 2026-07-26
SWA2775 Southwest Airlines 5 2026-05-28
SWA2715 Southwest Airlines 5 2026-05-29
SWA2433 Southwest Airlines 5 2026-04-17
SWA216 - 5 2026-07-11
SWA1177 Southwest Airlines 5 2026-05-31
SWA1118 Southwest Airlines 5 2026-04-17
SWA716 Southwest Airlines 4 2026-06-09
SWA696 Southwest Airlines 4 2026-05-30
SWA691 Southwest Airlines 4 2026-05-15
SWA434 - 4 2026-07-06
SWA4211 - 4 2026-07-01
SWA3916 Southwest Airlines 4 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA115 CUN → SAT Jul 26, 18:55 UTCJul 26, 21:40 UTC2h 45m
2026-07-26 SWA601 DEN → CUN Jul 26, 13:36 UTCJul 26, 17:42 UTC4h 6m
2026-07-26 SWA601 DEN → CUN Jul 26, 13:40 UTCJul 26, 17:45 UTC4h 5m
2026-07-26 SWA4639 TPA → AUS Jul 26, 00:30 UTCJul 26, 02:30 UTC2h 0m
2026-07-25 SWA3225 PHX → MDW Jul 25, 20:20 UTCJul 25, 23:15 UTC2h 55m
2026-07-25 SWA3225 PHX → MDW Jul 25, 20:15 UTCJul 25, 23:13 UTC2h 58m
2026-07-25 SWA3225 PHX → MDW Jul 25, 18:15 UTCJul 25, 19:10 UTC55m
2026-07-25 SWA1254 BDL → BWI Jul 25, 16:25 UTCJul 25, 17:25 UTC1h 0m
2026-07-25 SWA1254 BDL → BWI Jul 25, 13:50 UTCJul 25, 15:15 UTC1h 25m
2026-07-25 SWA3811 MSP → STL Jul 25, 05:05 UTCJul 25, 05:30 UTC25m
2026-07-25 SWA3811 MSP → STL Jul 25, 05:04 UTCJul 25, 05:25 UTC21m
2026-07-25 SWA3568 MDW → ATL Jul 25, 02:20 UTCJul 25, 04:00 UTC1h 40m
2026-07-25 SWA3568 MDW → ATL Jul 25, 02:15 UTCJul 25, 04:05 UTC1h 51m
2026-07-24 SWA115 CUN → SAT Jul 24, 22:25 UTCJul 25, 00:35 UTC2h 10m
2026-07-24 SWA728 AUS → CUN Jul 24, 16:15 UTCJul 24, 18:30 UTC2h 15m
2026-07-24 SWA728 AUS → CUN Jul 24, 16:12 UTCJul 24, 18:24 UTC2h 12m
2026-07-24 SWA4172 SLC → LAX Jul 24, 14:15 UTCJul 24, 14:45 UTC30m
2026-07-24 SWA4 - Jul 24, 12:25 UTCJul 24, 13:00 UTC35m
2026-07-24 SWA1233 SJC → STL Jul 24, 10:55 UTCJul 24, 11:25 UTC30m
2026-07-24 SWA57 DAL → HOU Jul 24, 04:45 UTCJul 24, 05:20 UTC35m
2026-07-24 SWA57 DAL → HOU Jul 24, 04:43 UTCJul 24, 05:20 UTC37m
2026-07-23 SWA2460 DEN → OKC Jul 23, 22:00 UTCJul 24, 01:05 UTC3h 5m
2026-07-23 SWA2294 MSY → BNA Jul 23, 18:30 UTCJul 23, 20:40 UTC2h 10m
2026-07-23 SWA2294 MSY → BNA Jul 23, 18:24 UTCJul 23, 20:36 UTC2h 12m
2026-07-23 SWA2294 MSY → BNA Jul 23, 15:20 UTCJul 23, 17:30 UTC2h 10m
2026-07-23 SWA3313 BWI → BOS Jul 23, 12:40 UTCJul 23, 14:10 UTC1h 30m
2026-07-23 SWA3811 MSP → STL Jul 23, 06:30 UTCJul 23, 06:50 UTC20m
2026-07-23 SWA4639 TPA → AUS Jul 23, 01:55 UTCJul 23, 03:55 UTC2h 0m
2026-07-22 SWA328 CUN → HOU Jul 22, 19:50 UTCJul 22, 21:35 UTC1h 45m
2026-07-22 SWA318 DEN → SJC Jul 22, 16:55 UTCJul 22, 18:25 UTC1h 30m
2026-07-22 SWA318 DEN → SJC Jul 22, 16:52 UTCJul 22, 18:25 UTC1h 33m
2026-07-22 SWA1349 DAL → MCO Jul 22, 12:35 UTCJul 22, 14:50 UTC2h 15m
2026-07-22 SWA1349 DAL → MCO Jul 22, 12:33 UTCJul 22, 14:46 UTC2h 13m
2026-07-22 SWA1349 - Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-22 SWA4451 - Jul 22, 03:30 UTCJul 22, 04:00 UTC30m
2026-07-21 SWA1097 BUR → SFO Jul 21, 22:45 UTCJul 22, 02:20 UTC3h 35m
2026-07-21 SWA1097 BUR → SFO Jul 21, 20:30 UTCJul 21, 21:30 UTC1h 0m
2026-07-21 SWA1097 BUR → SFO Jul 21, 18:10 UTCJul 21, 19:15 UTC1h 5m
2026-07-21 SWA3555 SAV → BNA Jul 21, 15:55 UTCJul 21, 17:00 UTC1h 5m
2026-07-21 SWA1844 SNA → OAK Jul 21, 13:40 UTCJul 21, 14:25 UTC45m
2026-07-21 SWA407 BOS → STL Jul 21, 06:35 UTCJul 21, 07:10 UTC35m
2026-07-21 SWA596 ISP → BNA Jul 21, 01:40 UTCJul 21, 05:05 UTC3h 25m
2026-07-20 SWA596 ISP → BNA Jul 20, 23:45 UTCJul 21, 00:35 UTC50m
2026-07-20 SWA493 - Jul 20, 21:05 UTCJul 20, 22:55 UTC1h 50m
2026-07-20 SWA493 CHS → STL Jul 20, 21:04 UTCJul 20, 22:50 UTC1h 47m
2026-07-20 SWA1962 SMF → LAX Jul 20, 18:10 UTCJul 20, 20:10 UTC2h 0m
2026-07-20 SWA23 DAL → HOU Jul 20, 15:35 UTCJul 20, 16:15 UTC40m
2026-07-19 SWA2154 PVD → BWI Jul 19, 23:35 UTCJul 20, 00:20 UTC45m
2026-07-19 SWA2154 PVD → BWI Jul 19, 21:05 UTCJul 19, 22:30 UTC1h 25m
2026-07-19 SWA2154 PVD → BWI Jul 19, 19:00 UTCJul 19, 19:50 UTC50m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N7750A page for operator, model, and routing details .

Mode-S AA7DF3 frequently asked

What is Mode-S code AA7DF3?
AA7DF3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7750A.
Where is Mode-S AA7DF3 registered?
Mode-S code AA7DF3 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AA7DF3 broadcasting right now?
Yes. Mode-S AA7DF3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7DF3, octal 52476763, decimal 11,173,363.
What flights does AA7DF3 operate?
Mode-S AA7DF3 has broadcast 20 distinct callsigns, including SWA328, SWA1909, SWA4650, SWA3811, SWA318.