Apparatus

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sensors Mode-S transponder

AA76CB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7732A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA76CB
Octal
52473313
Decimal
11,171,531
Country
US
Tail
N7732A
Type
B737
No current signal · last broadcast 12d ago
Flights observed
570
Distinct callsigns
20
Country
US
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S AA76CB.

Country allocation

The ICAO 24-bit address AA76CB 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
SWA1037 - 8 2026-06-23
SWA3916 - 7 2026-04-15
SWA1940 Southwest Airlines 7 2026-04-17
SWA611 Southwest Airlines 6 2026-04-13
SWA739 Southwest Airlines 5 2026-06-06
SWA323 Southwest Airlines 5 2026-06-28
SWA2168 Southwest Airlines 5 2026-05-01
SWA1693 Southwest Airlines 5 2026-06-23
SWA1206 - 5 2026-06-24
SWA855 Southwest Airlines 4 2026-06-14
SWA853 Southwest Airlines 4 2026-06-09
SWA568 Southwest Airlines 4 2026-05-31
SWA4013 - 4 2026-06-30
SWA3419 Southwest Airlines 4 2026-05-16
SWA3156 Southwest Airlines 4 2026-06-09
SWA2934 - 4 2026-06-17
SWA2824 - 4 2026-06-26
SWA2544 Southwest Airlines 4 2026-06-02
SWA2373 - 4 2026-06-14
SWA2288 Southwest Airlines 4 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-01 SWA8530 SAN → PHX Jul 1, 14:50 UTCJul 1, 17:15 UTC2h 25m
2026-07-01 SWA8530 SAN → PHX Jul 1, 14:47 UTCJul 1, 17:25 UTC2h 38m
2026-07-01 SWA59 - Jul 1, 02:45 UTCJul 1, 03:35 UTC50m
2026-07-01 SWA59 - Jul 1, 00:10 UTCJul 1, 01:55 UTC1h 45m
2026-06-30 SWA1358 - Jun 30, 20:40 UTCJun 30, 22:35 UTC1h 55m
2026-06-30 SWA4127 - Jun 30, 18:00 UTCJun 30, 19:00 UTC1h 0m
2026-06-30 SWA4013 - Jun 30, 16:05 UTCJun 30, 17:10 UTC1h 5m
2026-06-30 SWA4013 HOU → MEM Jun 30, 16:00 UTCJun 30, 17:09 UTC1h 9m
2026-06-30 SWA2637 - Jun 30, 12:50 UTCJun 30, 14:40 UTC1h 50m
2026-06-29 SWA353 - Jun 29, 23:09 UTCJun 30, 01:35 UTC2h 26m
2026-06-29 SWA2979 MSY → AUS Jun 29, 21:24 UTCJun 29, 22:24 UTC1h 0m
2026-06-29 SWA2052 - Jun 29, 19:24 UTCJun 29, 20:09 UTC45m
2026-06-29 SWA1642 - Jun 29, 17:34 UTCJun 29, 18:19 UTC45m
2026-06-29 SWA1642 DEN → MSY Jun 29, 14:09 UTCJun 29, 16:19 UTC2h 10m
2026-06-29 SWA3737 SLC → DEN Jun 29, 11:35 UTCJun 29, 12:39 UTC1h 5m
2026-06-29 SWA2054 - Jun 29, 02:09 UTCJun 29, 04:55 UTC2h 45m
2026-06-29 SWA2054 HOU → SLC Jun 29, 02:04 UTCJun 29, 04:41 UTC2h 37m
2026-06-28 SWA323 SBA → OAK Jun 28, 21:59 UTCJun 29, 00:44 UTC2h 45m
2026-06-28 SWA323 SBA → OAK Jun 28, 21:55 UTCJun 29, 00:43 UTC2h 48m
2026-06-28 SWA323 SBA → OAK Jun 28, 20:14 UTCJun 28, 20:59 UTC45m
2026-06-28 SWA323 SBA → OAK Jun 28, 16:09 UTCJun 28, 18:34 UTC2h 25m
2026-06-28 SWA323 SBA → OAK Jun 28, 13:34 UTCJun 28, 15:20 UTC1h 45m
2026-06-28 SWA4568 DEN → RNO Jun 28, 10:39 UTCJun 28, 11:59 UTC1h 20m
2026-06-28 SWA1306 DEN → CLE Jun 28, 03:00 UTCJun 28, 05:20 UTC2h 20m
2026-06-28 SWA1306 DEN → CLE Jun 28, 03:00 UTCJun 28, 05:20 UTC2h 20m
2026-06-27 SWA4213 BUR → DEN Jun 27, 21:25 UTCJun 27, 23:10 UTC1h 45m
2026-06-27 SWA4213 BUR → DEN Jun 27, 21:20 UTCJun 27, 22:59 UTC1h 39m
2026-06-27 SWA1776 LAS → BUR Jun 27, 19:24 UTCJun 27, 20:09 UTC45m
2026-06-27 SWA3090 BUR → LAS Jun 27, 17:29 UTCJun 27, 18:09 UTC40m
2026-06-27 SWA2766 - Jun 27, 15:05 UTCJun 27, 16:14 UTC1h 10m
2026-06-27 SWA2766 PHX → BUR Jun 27, 15:04 UTCJun 27, 16:08 UTC1h 4m
2026-06-27 SWA146 ABQ → PHX Jun 27, 12:50 UTCJun 27, 13:44 UTC55m
2026-06-27 SWA2177 SAN → OAK Jun 27, 04:49 UTCJun 27, 05:55 UTC1h 5m
2026-06-27 SWA2177 SAN → OAK Jun 27, 03:09 UTCJun 27, 04:05 UTC55m
2026-06-27 SWA2012 PDX → OAK Jun 27, 01:35 UTCJun 27, 02:20 UTC45m
2026-06-26 SWA2012 PDX → OAK Jun 26, 22:19 UTCJun 27, 00:10 UTC1h 50m
2026-06-26 SWA2012 PDX → OAK Jun 26, 20:20 UTCJun 26, 21:20 UTC1h 0m
2026-06-26 SWA2824 - Jun 26, 17:35 UTCJun 26, 18:39 UTC1h 5m
2026-06-26 SWA2824 - Jun 26, 15:20 UTCJun 26, 16:30 UTC1h 10m
2026-06-26 SWA3609 - Jun 26, 12:50 UTCJun 26, 13:45 UTC55m
2026-06-26 SWA156 - Jun 26, 03:00 UTCJun 26, 04:24 UTC1h 25m
2026-06-26 SWA156 BWI → SDF Jun 26, 02:56 UTCJun 26, 04:21 UTC1h 25m
2026-06-26 SWA1290 - Jun 26, 00:45 UTCJun 26, 02:05 UTC1h 20m
2026-06-25 SWA1290 - Jun 25, 21:50 UTCJun 25, 23:49 UTC2h 0m
2026-06-25 SWA4127 - Jun 25, 19:49 UTCJun 25, 20:54 UTC1h 5m
2026-06-25 SWA888 - Jun 25, 17:30 UTCJun 25, 18:29 UTC1h 0m
2026-06-25 SWA888 DAL → MEM Jun 25, 17:28 UTCJun 25, 18:27 UTC59m
2026-06-25 SWA1360 DEN → DAL Jun 25, 14:59 UTCJun 25, 16:29 UTC1h 30m
2026-06-25 SWA2223 LAS → DEN Jun 25, 12:19 UTCJun 25, 13:40 UTC1h 20m
2026-06-25 SWA3788 SMF → LAS Jun 25, 04:35 UTCJun 25, 05:39 UTC1h 5m

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 N7732A page for operator, model, and routing details .

Mode-S AA76CB frequently asked

What is Mode-S code AA76CB?
AA76CB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7732A.
Where is Mode-S AA76CB registered?
Mode-S code AA76CB 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 AA76CB broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA76CB, octal 52473313, decimal 11,171,531.
What flights does AA76CB operate?
Mode-S AA76CB has broadcast 20 distinct callsigns, including SWA1037, SWA3916, SWA1940, SWA611, SWA739.