Apparatus

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sensors Mode-S transponder

AA7734

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7735A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA7734
Octal
52473464
Decimal
11,171,636
Country
US
Tail
N7735A
Type
B737
No current signal · last broadcast Apr 17, 13:10 UTC
Flights observed
46
Distinct callsigns
20
Country
US
Last broadcast
Apr 17, 13:10 UTC

Last known position

Most recent position reported by Mode-S AA7734.

Country allocation

The ICAO 24-bit address AA7734 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
SWA3287 - 5 2026-04-15
SWA863 Southwest Airlines 4 2026-04-16
SWA7 Southwest Airlines 4 2026-04-13
SWA1171 Southwest Airlines 4 2026-04-16
SWA4651 - 3 2026-04-13
SWA3225 - 3 2026-04-14
SWA2225 Southwest Airlines 3 2026-04-14
SWA804 - 2 2026-04-15
SWA3766 - 2 2026-04-13
SWA3072 Southwest Airlines 2 2026-04-17
SWA3006 - 2 2026-04-13
SWA2605 - 2 2026-04-16
SWA1189 - 2 2026-04-16
SWA8500 Southwest Airlines 1 2026-04-17
SWA625 - 1 2026-04-13
SWA4524 - 1 2026-04-12
SWA388 - 1 2026-04-12
SWA3455 Southwest Airlines 1 2026-04-15
SWA329 Southwest Airlines 1 2026-04-15
SWA3250 Southwest Airlines 1 2026-04-14

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-04-17 SWA8500 BWI → BOS Apr 17, 12:45 UTCApr 17, 13:10 UTC25m
2026-04-17 SWA3072 BNA → BOS Apr 17, 01:20 UTCApr 17, 01:30 UTC10m
2026-04-17 SWA3072 BNA → BOS Apr 17, 00:25 UTCApr 17, 01:28 UTC1h 3m
2026-04-16 SWA1189 - Apr 16, 21:14 UTCApr 16, 22:34 UTC1h 20m
2026-04-16 SWA1189 - Apr 16, 20:45 UTCApr 16, 21:10 UTC25m
2026-04-16 SWA863 BWI → PVD Apr 16, 19:15 UTCApr 16, 19:50 UTC35m
2026-04-16 SWA863 BWI → PVD Apr 16, 18:29 UTCApr 16, 19:44 UTC1h 15m
2026-04-16 SWA863 BWI → PVD Apr 16, 17:15 UTCApr 16, 17:30 UTC15m
2026-04-16 SWA863 BWI → PVD Apr 16, 15:45 UTCApr 16, 17:10 UTC1h 25m
2026-04-16 SWA2605 - Apr 16, 13:15 UTCApr 16, 14:45 UTC1h 30m
2026-04-16 SWA2605 - Apr 16, 12:19 UTCApr 16, 13:05 UTC45m
2026-04-16 SWA1171 MDW → BOS Apr 16, 03:09 UTCApr 16, 03:39 UTC30m
2026-04-16 SWA1171 MDW → BOS Apr 16, 01:10 UTCApr 16, 03:00 UTC1h 50m
2026-04-15 SWA1171 MDW → BOS Apr 15, 23:10 UTCApr 16, 01:05 UTC1h 55m
2026-04-15 SWA1171 MDW → BOS Apr 15, 22:45 UTCApr 15, 23:00 UTC15m
2026-04-15 SWA3287 - Apr 15, 21:05 UTCApr 15, 21:40 UTC35m
2026-04-15 SWA3287 - Apr 15, 20:30 UTCApr 15, 21:00 UTC30m
2026-04-15 SWA3287 - Apr 15, 19:05 UTCApr 15, 19:15 UTC10m
2026-04-15 SWA3287 - Apr 15, 17:05 UTCApr 15, 19:00 UTC1h 55m
2026-04-15 SWA3287 - Apr 15, 16:40 UTCApr 15, 17:00 UTC20m
2026-04-15 SWA804 - Apr 15, 15:05 UTCApr 15, 15:30 UTC25m
2026-04-15 SWA804 HOU → MCO Apr 15, 13:37 UTCApr 15, 15:25 UTC1h 48m
2026-04-15 SWA329 LAX → AUS Apr 15, 11:30 UTCApr 15, 12:15 UTC45m
2026-04-15 SWA3455 BNA → LGA Apr 15, 00:55 UTCApr 15, 01:30 UTC35m
2026-04-14 SWA2434 LAS → OAK Apr 14, 23:00 UTCApr 14, 23:50 UTC50m
2026-04-14 SWA3250 SJC → PHX Apr 14, 21:00 UTCApr 14, 22:05 UTC1h 5m
2026-04-14 SWA3225 - Apr 14, 19:25 UTCApr 14, 20:05 UTC40m
2026-04-14 SWA3225 - Apr 14, 16:50 UTCApr 14, 18:35 UTC1h 45m
2026-04-14 SWA3225 - Apr 14, 16:10 UTCApr 14, 16:45 UTC35m
2026-04-14 SWA2225 MDW → BUF Apr 14, 14:50 UTCApr 14, 15:10 UTC20m
2026-04-14 SWA2225 MDW → BUF Apr 14, 12:50 UTCApr 14, 14:45 UTC1h 55m
2026-04-14 SWA2225 MDW → BUF Apr 14, 12:37 UTCApr 14, 14:56 UTC2h 19m
2026-04-13 SWA625 - Apr 13, 20:19 UTCApr 13, 22:35 UTC2h 16m
2026-04-13 SWA3006 - Apr 13, 16:27 UTCApr 13, 19:00 UTC2h 33m
2026-04-13 SWA3006 - Apr 13, 16:11 UTCApr 13, 18:27 UTC2h 16m
2026-04-13 SWA7 DAL → HOU Apr 13, 13:42 UTCApr 13, 14:28 UTC46m
2026-04-13 SWA7 DAL → HOU Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 SWA7 DAL → HOU Apr 13, 11:55 UTCApr 13, 12:35 UTC40m
2026-04-13 SWA7 DAL → HOU Apr 13, 10:46 UTCApr 13, 12:49 UTC2h 3m
2026-04-13 SWA4651 - Apr 13, 03:55 UTCApr 13, 04:10 UTC15m
2026-04-13 SWA4651 DEN → MDW Apr 13, 02:04 UTCApr 13, 04:09 UTC2h 5m
2026-04-13 SWA4651 DEN → MDW Apr 13, 02:19 UTCApr 13, 04:14 UTC1h 55m
2026-04-13 SWA3766 - Apr 13, 00:20 UTCApr 13, 00:55 UTC35m
2026-04-12 SWA3766 - Apr 12, 23:55 UTCApr 13, 00:55 UTC1h 0m
2026-04-12 SWA4524 - Apr 12, 19:10 UTCApr 12, 20:15 UTC1h 5m
2026-04-12 SWA388 - Apr 12, 16:26 UTCApr 12, 17:45 UTC1h 19m

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 N7735A page for operator, model, and routing details .

Mode-S AA7734 frequently asked

What is Mode-S code AA7734?
AA7734 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7735A.
Where is Mode-S AA7734 registered?
Mode-S code AA7734 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 AA7734 broadcasting right now?
No active broadcast right now. Last signal was Apr 17, 13:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7734, octal 52473464, decimal 11,171,636.
What flights does AA7734 operate?
Mode-S AA7734 has broadcast 20 distinct callsigns, including SWA3287, SWA863, SWA7, SWA1171, SWA4651.