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sensors Mode-S transponder

AA735A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7724A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA735A
Octal
52471532
Decimal
11,170,650
Country
US
Tail
N7724A
Type
B737
Broadcasting now · callsign SWA3143 · 37,000 ft
Flights observed
661
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

AA735A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AA735A 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
SWA1836 Southwest Airlines 7 2026-07-10
SWA1676 Southwest Airlines 7 2026-04-18
SWA1382 - 6 2026-06-20
SWA751 Southwest Airlines 5 2026-06-03
SWA1735 Southwest Airlines 5 2026-05-24
SWA1614 Southwest Airlines 5 2026-05-23
SWA847 Southwest Airlines 4 2026-07-05
SWA750 Southwest Airlines 4 2026-06-03
SWA716 - 4 2026-07-02
SWA3900 Southwest Airlines 4 2026-04-15
SWA3383 Southwest Airlines 4 2026-05-04
SWA3329 - 4 2026-07-14
SWA3130 Southwest Airlines 4 2026-06-08
SWA2433 - 4 2026-07-11
SWA2404 - 4 2026-07-15
SWA1922 - 4 2026-07-14
SWA1920 - 4 2026-07-14
SWA1573 Southwest Airlines 4 2026-04-16
SWA1396 - 4 2026-07-10
SWA1332 - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SWA2015 LAS → ONT Jul 15, 02:40 UTCJul 15, 03:15 UTC35m
2026-07-15 SWA2404 - Jul 15, 00:55 UTCJul 15, 01:40 UTC45m
2026-07-15 SWA2404 LAX → LAS Jul 15, 00:52 UTCJul 15, 01:37 UTC45m
2026-07-14 SWA3176 - Jul 14, 22:15 UTCJul 14, 23:10 UTC54m
2026-07-14 SWA1922 - Jul 14, 19:20 UTCJul 14, 20:10 UTC50m
2026-07-14 SWA1920 - Jul 14, 15:50 UTCJul 14, 16:45 UTC55m
2026-07-14 SWA1920 PHX → SJD Jul 14, 15:49 UTCJul 14, 17:28 UTC1h 39m
2026-07-14 SWA4835 - Jul 14, 11:45 UTCJul 14, 13:55 UTC2h 10m
2026-07-14 SWA4835 OMA → PHX Jul 14, 11:40 UTCJul 14, 13:50 UTC2h 10m
2026-07-14 SWA2845 - Jul 14, 03:10 UTCJul 14, 04:15 UTC1h 5m
2026-07-14 SWA3329 - Jul 14, 00:30 UTCJul 14, 01:15 UTC45m
2026-07-13 SWA3329 PHX → SDF Jul 13, 20:15 UTCJul 13, 23:25 UTC3h 10m
2026-07-13 SWA3329 - Jul 13, 18:15 UTCJul 13, 19:10 UTC55m
2026-07-13 SWA3329 - Jul 13, 16:10 UTCJul 13, 17:20 UTC1h 10m
2026-07-13 SWA2669 - Jul 13, 14:10 UTCJul 13, 15:20 UTC1h 10m
2026-07-13 SWA2669 SNA → SMF Jul 13, 14:10 UTCJul 13, 15:12 UTC1h 2m
2026-07-13 SWA1590 - Jul 13, 05:10 UTCJul 13, 05:50 UTC40m
2026-07-13 SWA1590 LAS → SNA Jul 13, 05:06 UTCJul 13, 05:44 UTC38m
2026-07-13 SWA3727 OAK → LAS Jul 13, 02:45 UTCJul 13, 03:55 UTC1h 10m
2026-07-13 SWA2694 - Jul 13, 00:40 UTCJul 13, 01:40 UTC1h 0m
2026-07-13 SWA2694 SNA → OAK Jul 13, 00:39 UTCJul 13, 01:34 UTC55m
2026-07-12 SWA3832 - Jul 12, 22:35 UTCJul 12, 23:50 UTC1h 15m
2026-07-12 SWA3832 SMF → SNA Jul 12, 22:32 UTCJul 12, 23:46 UTC1h 14m
2026-07-12 SWA4532 LAS → SMF Jul 12, 20:40 UTCJul 12, 21:40 UTC1h 0m
2026-07-12 SWA3371 - Jul 12, 18:20 UTCJul 12, 19:20 UTC1h 0m
2026-07-12 SWA3047 ONT → SJC Jul 12, 16:01 UTCJul 12, 16:50 UTC50m
2026-07-12 SWA2830 SJC → LAS Jul 12, 13:40 UTCJul 12, 14:45 UTC1h 5m
2026-07-12 SWA2352 LAS → SJC Jul 12, 03:05 UTCJul 12, 04:01 UTC55m
2026-07-12 SWA278 - Jul 12, 00:35 UTCJul 12, 01:20 UTC45m
2026-07-11 SWA278 - Jul 11, 22:40 UTCJul 11, 23:35 UTC55m
2026-07-11 SWA2433 - Jul 11, 20:40 UTCJul 11, 21:30 UTC50m
2026-07-11 SWA2433 - Jul 11, 16:05 UTCJul 11, 19:40 UTC3h 35m
2026-07-11 SWA3118 - Jul 11, 12:10 UTCJul 11, 14:25 UTC2h 15m
2026-07-11 SWA3118 PVD → MDW Jul 11, 12:08 UTCJul 11, 14:16 UTC2h 9m
2026-07-10 SWA4898 - Jul 10, 22:10 UTCJul 11, 00:45 UTC2h 35m
2026-07-10 SWA1025 CUN → MCO Jul 10, 18:25 UTCJul 10, 20:00 UTC1h 35m
2026-07-10 SWA1836 SAT → CUN Jul 10, 14:30 UTCJul 10, 16:35 UTC2h 5m
2026-07-10 SWA1836 SAT → CUN Jul 10, 14:29 UTCJul 10, 16:33 UTC2h 4m
2026-07-10 SWA1396 - Jul 10, 12:35 UTCJul 10, 13:15 UTC40m
2026-07-10 SWA1523 - Jul 10, 04:30 UTCJul 10, 06:00 UTC1h 30m
2026-07-10 SWA1188 OKC → DEN Jul 10, 01:30 UTCJul 10, 03:15 UTC1h 45m
2026-07-09 SWA1188 - Jul 9, 22:10 UTCJul 10, 00:40 UTC2h 30m
2026-07-09 SWA1188 - Jul 9, 18:00 UTCJul 9, 19:40 UTC1h 40m
2026-07-09 SWA3375 - Jul 9, 14:15 UTCJul 9, 16:05 UTC1h 50m
2026-07-09 SWA4041 - Jul 9, 11:05 UTCJul 9, 13:00 UTC1h 55m
2026-07-09 SWA4041 TPA → PIT Jul 9, 11:05 UTCJul 9, 12:56 UTC1h 51m
2026-07-09 SWA417 - Jul 9, 01:15 UTCJul 9, 03:20 UTC2h 5m
2026-07-08 SWA417 LAS → AUS Jul 8, 21:45 UTCJul 9, 00:00 UTC2h 15m
2026-07-08 SWA3124 BUR → LAS Jul 8, 20:00 UTCJul 8, 20:40 UTC40m
2026-07-08 SWA3124 BUR → LAS Jul 8, 19:55 UTCJul 8, 20:39 UTC44m

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 N7724A page for operator, model, and routing details .

Mode-S AA735A frequently asked

What is Mode-S code AA735A?
AA735A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7724A.
Where is Mode-S AA735A registered?
Mode-S code AA735A 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 AA735A broadcasting right now?
Yes. Mode-S AA735A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA735A, octal 52471532, decimal 11,170,650.
What flights does AA735A operate?
Mode-S AA735A has broadcast 20 distinct callsigns, including SWA1836, SWA1676, SWA1382, SWA751, SWA1735.