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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
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
728
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

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
SWA4008 - 4 2026-07-18
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA235 JAX → BWI Jul 26, 21:35 UTCJul 26, 22:25 UTC50m
2026-07-26 SWA235 JAX → BWI Jul 26, 16:15 UTCJul 26, 20:15 UTC4h 0m
2026-07-26 SWA2830 SJC → SAN Jul 26, 13:45 UTCJul 26, 14:50 UTC1h 5m
2026-07-26 SWA2352 BWI → PWM Jul 26, 03:50 UTCJul 26, 04:45 UTC55m
2026-07-26 SWA278 PHL → STL Jul 26, 02:00 UTCJul 26, 02:50 UTC50m
2026-07-26 SWA278 PHL → STL Jul 26, 01:58 UTCJul 26, 02:44 UTC46m
2026-07-26 SWA278 PHL → STL Jul 26, 00:10 UTCJul 26, 01:10 UTC1h 0m
2026-07-25 SWA2433 BOS → DEN Jul 25, 22:00 UTCJul 25, 22:55 UTC55m
2026-07-25 SWA2433 BOS → DEN Jul 25, 15:55 UTCJul 25, 19:40 UTC3h 45m
2026-07-25 SWA3118 - Jul 25, 12:20 UTCJul 25, 14:15 UTC1h 55m
2026-07-25 SWA3118 PVD → MDW Jul 25, 12:16 UTCJul 25, 14:12 UTC1h 56m
2026-07-24 SWA4898 BWI → PWM Jul 24, 22:30 UTCJul 25, 00:55 UTC2h 25m
2026-07-24 SWA4898 BWI → PWM Jul 24, 22:29 UTCJul 25, 00:51 UTC2h 22m
2026-07-24 SWA1025 MBJ → FLL Jul 24, 18:35 UTCJul 24, 20:10 UTC1h 35m
2026-07-24 SWA1836 SAT → CUN Jul 24, 15:05 UTCJul 24, 17:20 UTC2h 15m
2026-07-24 SWA1396 PVD → BWI Jul 24, 13:10 UTCJul 24, 13:45 UTC35m
2026-07-24 SWA1255 PHX → SJC Jul 24, 01:20 UTCJul 24, 02:00 UTC40m
2026-07-23 SWA279 SJC → SAN Jul 23, 22:40 UTCJul 24, 00:05 UTC1h 25m
2026-07-23 SWA279 SJC → SAN Jul 23, 20:30 UTCJul 23, 21:50 UTC1h 20m
2026-07-23 SWA1412 LAX → SJC Jul 23, 18:10 UTCJul 23, 19:30 UTC1h 20m
2026-07-23 SWA1487 FLL → PIT Jul 23, 15:15 UTCJul 23, 16:55 UTC1h 40m
2026-07-23 SWA1487 FLL → PIT Jul 23, 15:10 UTCJul 23, 16:53 UTC1h 44m
2026-07-23 SWA3460 LGB → OAK Jul 23, 12:22 UTCJul 23, 13:51 UTC1h 30m
2026-07-23 SWA3460 LGB → OAK Jul 23, 12:25 UTCJul 23, 13:50 UTC1h 25m
2026-07-23 SWA2878 PHL → MCO Jul 23, 00:30 UTCJul 23, 01:40 UTC1h 10m
2026-07-22 SWA997 SJC → SAN Jul 22, 21:45 UTCJul 22, 23:25 UTC1h 40m
2026-07-22 SWA3401 BWI → DEN Jul 22, 12:50 UTCJul 22, 13:50 UTC1h 0m
2026-07-22 SWA3401 BWI → DEN Jul 22, 12:46 UTCJul 22, 13:43 UTC57m
2026-07-21 SWA1252 PHX → HOU Jul 21, 23:45 UTCJul 22, 01:25 UTC1h 40m
2026-07-21 SWA8802 - Jul 21, 22:00 UTCJul 21, 22:35 UTC35m
2026-07-21 SWA8802 GRR → MDW Jul 21, 21:59 UTCJul 21, 22:32 UTC33m
2026-07-21 SWA2918 BWI → BOS Jul 21, 15:50 UTCJul 21, 17:25 UTC1h 35m
2026-07-21 SWA2918 BWI → BOS Jul 21, 13:25 UTCJul 21, 14:40 UTC1h 15m
2026-07-21 SWA1002 BUR → SJC Jul 21, 11:15 UTCJul 21, 12:15 UTC1h 0m
2026-07-21 SWA1002 BUR → SJC Jul 21, 11:12 UTCJul 21, 12:12 UTC1h 0m
2026-07-21 SWA3143 - Jul 21, 05:00 UTCJul 21, 09:50 UTC4h 50m
2026-07-21 SWA271 DAL → LAS Jul 21, 02:25 UTCJul 21, 03:30 UTC1h 5m
2026-07-21 SWA3305 PVD → MCO Jul 21, 00:05 UTCJul 21, 01:35 UTC1h 30m
2026-07-21 SWA3305 PVD → MCO Jul 21, 00:05 UTCJul 21, 01:31 UTC1h 26m
2026-07-20 SWA3017 - Jul 20, 20:00 UTCJul 20, 22:50 UTC2h 50m
2026-07-20 SWA1027 CUN → MSY Jul 20, 16:10 UTCJul 20, 17:40 UTC1h 30m
2026-07-20 SWA228 - Jul 20, 11:30 UTCJul 20, 14:30 UTC3h 0m
2026-07-20 SWA1614 DEN → MDW Jul 20, 01:15 UTCJul 20, 03:05 UTC1h 50m
2026-07-19 SWA4826 - Jul 19, 21:20 UTCJul 19, 23:30 UTC2h 10m
2026-07-19 SWA1977 CUN → IND Jul 19, 16:00 UTCJul 19, 19:00 UTC3h 0m
2026-07-19 SWA612 CMH → CUN Jul 19, 11:35 UTCJul 19, 14:35 UTC3h 0m
2026-07-18 SWA4142 - Jul 18, 23:45 UTCJul 19, 01:45 UTC2h 0m
2026-07-18 SWA678 BNA → SRQ Jul 18, 21:20 UTCJul 18, 23:00 UTC1h 40m
2026-07-18 SWA4008 - Jul 18, 16:05 UTCJul 18, 20:05 UTC4h 0m
2026-07-18 SWA4008 BUR → SJC Jul 18, 14:15 UTCJul 18, 15:00 UTC45m

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?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
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.