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sensors Mode-S transponder

AA733B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7723E · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA733B
Octal
52471473
Decimal
11,170,619
Country
US
Tail
N7723E
Type
B737
Transponder active on ground
Flights observed
639
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AA733B.

Country allocation

The ICAO 24-bit address AA733B 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
SWA694 - 7 2026-07-11
SWA2196 - 6 2026-07-12
SWA1996 Southwest Airlines 6 2026-07-10
SWA131 Southwest Airlines 6 2026-05-28
SWA1096 Southwest Airlines 6 2026-05-26
SWA8502 - 5 2026-06-21
SWA3375 Southwest Airlines 5 2026-04-27
SWA2318 - 5 2026-07-09
SWA1985 - 5 2026-07-10
SWA931 - 4 2026-06-26
SWA851 - 4 2026-06-28
SWA4675 Southwest Airlines 4 2026-05-14
SWA352 Southwest Airlines 4 2026-06-11
SWA328 Southwest Airlines 4 2026-05-10
SWA3147 Southwest Airlines 4 2026-05-26
SWA305 Southwest Airlines 4 2026-05-12
SWA2986 - 4 2026-07-09
SWA2731 Southwest Airlines 4 2026-04-13
SWA25 Southwest Airlines 4 2026-06-10
SWA2020 - 4 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA3538 - Jul 13, 23:20 UTCJul 14, 00:45 UTC1h 25m
2026-07-13 SWA3538 - Jul 13, 21:35 UTCJul 13, 22:30 UTC55m
2026-07-13 SWA3454 - Jul 13, 19:15 UTCJul 13, 20:30 UTC1h 15m
2026-07-13 SWA339 - Jul 13, 16:40 UTCJul 13, 17:30 UTC50m
2026-07-13 SWA3327 LAS → BUR Jul 13, 15:00 UTCJul 13, 15:45 UTC45m
2026-07-13 SWA3445 - Jul 13, 12:40 UTCJul 13, 13:35 UTC55m
2026-07-13 SWA2860 - Jul 13, 03:50 UTCJul 13, 04:40 UTC50m
2026-07-13 SWA2860 BUR → RNO Jul 13, 03:48 UTCJul 13, 04:41 UTC53m
2026-07-13 SWA2202 LAS → BUR Jul 13, 02:18 UTCJul 13, 03:01 UTC43m
2026-07-13 SWA2202 LAS → BUR Jul 13, 02:20 UTCJul 13, 03:05 UTC45m
2026-07-12 SWA2406 - Jul 12, 22:40 UTCJul 13, 00:35 UTC1h 55m
2026-07-12 SWA2406 LBB → LAS Jul 12, 22:38 UTCJul 13, 00:29 UTC1h 51m
2026-07-12 SWA2178 - Jul 12, 19:45 UTCJul 12, 21:30 UTC1h 45m
2026-07-12 SWA2178 SJC → LAS Jul 12, 17:10 UTCJul 12, 18:15 UTC1h 5m
2026-07-12 SWA834 BUR → SJC Jul 12, 15:20 UTCJul 12, 16:01 UTC40m
2026-07-12 SWA2196 LAS → BUR Jul 12, 13:37 UTCJul 12, 14:20 UTC43m
2026-07-12 SWA2196 LAS → BUR Jul 12, 13:40 UTCJul 12, 14:25 UTC45m
2026-07-12 SWA210 ATL → LAS Jul 12, 00:02 UTCJul 12, 03:46 UTC3h 44m
2026-07-12 SWA210 - Jul 12, 00:05 UTCJul 12, 02:45 UTC2h 40m
2026-07-11 SWA1135 SNA → SJC Jul 11, 19:25 UTCJul 11, 21:30 UTC2h 5m
2026-07-11 SWA318 - Jul 11, 16:15 UTCJul 11, 17:50 UTC1h 35m
2026-07-11 SWA4712 - Jul 11, 13:00 UTCJul 11, 14:35 UTC1h 35m
2026-07-11 SWA3388 - Jul 11, 11:10 UTCJul 11, 11:45 UTC35m
2026-07-11 SWA3388 TYS → BNA Jul 11, 11:06 UTCJul 11, 11:45 UTC39m
2026-07-11 SWA694 - Jul 11, 00:35 UTCJul 11, 01:05 UTC30m
2026-07-10 SWA694 STL → BNA Jul 10, 22:45 UTCJul 10, 23:25 UTC40m
2026-07-10 SWA1996 CUN → STL Jul 10, 18:15 UTCJul 10, 20:55 UTC2h 40m
2026-07-10 SWA1996 CUN → STL Jul 10, 18:15 UTCJul 10, 20:57 UTC2h 43m
2026-07-10 SWA1985 STL → CUN Jul 10, 13:55 UTCJul 10, 16:35 UTC2h 40m
2026-07-10 SWA1109 - Jul 10, 10:30 UTCJul 10, 12:25 UTC1h 55m
2026-07-09 SWA2986 MSY → BWI Jul 9, 22:55 UTCJul 10, 01:15 UTC2h 20m
2026-07-09 SWA2986 MSY → BWI Jul 9, 22:55 UTCJul 10, 01:17 UTC2h 22m
2026-07-09 SWA2986 - Jul 9, 20:55 UTCJul 9, 21:55 UTC1h 0m
2026-07-09 SWA2986 - Jul 9, 18:05 UTCJul 9, 19:55 UTC1h 50m
2026-07-09 SWA814 BUR → PHX Jul 9, 15:40 UTCJul 9, 16:45 UTC1h 5m
2026-07-09 SWA2196 LAS → BUR Jul 9, 13:50 UTCJul 9, 14:35 UTC45m
2026-07-09 SWA2196 LAS → BUR Jul 9, 13:50 UTCJul 9, 14:32 UTC42m
2026-07-09 SWA3788 SMF → LAS Jul 9, 03:50 UTCJul 9, 04:50 UTC1h 0m
2026-07-09 SWA2318 - Jul 9, 01:40 UTCJul 9, 02:50 UTC1h 10m
2026-07-09 SWA2318 - Jul 9, 00:10 UTCJul 9, 00:30 UTC20m
2026-07-08 SWA1206 - Jul 8, 22:00 UTCJul 8, 22:50 UTC50m
2026-07-08 SWA1206 - Jul 8, 17:00 UTCJul 8, 20:55 UTC3h 55m
2026-07-08 SWA1206 - Jul 8, 15:00 UTCJul 8, 15:55 UTC55m
2026-07-08 SWA4550 RDU → BWI Jul 8, 12:44 UTCJul 8, 13:27 UTC43m
2026-07-08 SWA4550 RDU → BWI Jul 8, 12:45 UTCJul 8, 13:35 UTC50m
2026-07-07 SWA1063 AUS → RDU Jul 7, 17:20 UTCJul 7, 19:55 UTC2h 35m
2026-07-07 SWA1063 AUS → RDU Jul 7, 17:17 UTCJul 7, 19:47 UTC2h 30m
2026-07-07 SWA4463 DEN → AUS Jul 7, 02:24 UTCJul 7, 04:00 UTC1h 36m
2026-07-07 SWA4463 DEN → AUS Jul 7, 02:25 UTCJul 7, 04:05 UTC1h 40m
2026-07-06 SWA290 AUS → DEN Jul 6, 23:30 UTCJul 7, 01:20 UTC1h 51m

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 N7723E page for operator, model, and routing details .

Mode-S AA733B frequently asked

What is Mode-S code AA733B?
AA733B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7723E.
Where is Mode-S AA733B registered?
Mode-S code AA733B 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 AA733B broadcasting right now?
Mode-S AA733B is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA733B, octal 52471473, decimal 11,170,619.
What flights does AA733B operate?
Mode-S AA733B has broadcast 20 distinct callsigns, including SWA694, SWA2196, SWA1996, SWA131, SWA1096.