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sensors Mode-S transponder

AA7AA6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7743B · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AA7AA6
Octal
52475246
Decimal
11,172,518
Country
US
Tail
N7743B
Type
B737
No current signal · last broadcast 2h ago
Flights observed
621
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AA7AA6.

Country allocation

The ICAO 24-bit address AA7AA6 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
SWA937 - 9 2026-07-01
SWA54 - 7 2026-07-11
SWA328 Southwest Airlines 6 2026-07-06
SWA1996 Southwest Airlines 6 2026-07-02
SWA50 Southwest Airlines 5 2026-05-26
SWA3463 Southwest Airlines 5 2026-06-01
SWA311 - 5 2026-06-19
SWA307 Southwest Airlines 5 2026-05-23
SWA235 - 5 2026-07-05
SWA1793 - 5 2026-04-16
SWA1207 - 5 2026-07-12
SWA621 Southwest Airlines 4 2026-04-22
SWA556 - 4 2026-07-08
SWA3949 - 4 2026-07-02
SWA3191 - 4 2026-07-01
SWA318 - 4 2026-07-06
SWA3001 - 4 2026-06-15
SWA2433 - 4 2026-04-13
SWA2036 - 4 2026-07-06
SWA184 Southwest Airlines 4 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA2124 - Jul 14, 01:00 UTCJul 14, 02:30 UTC1h 30m
2026-07-14 SWA2124 IND → MSY Jul 14, 00:58 UTCJul 14, 02:29 UTC1h 31m
2026-07-13 SWA4923 - Jul 13, 22:25 UTCJul 14, 00:15 UTC1h 50m
2026-07-13 SWA1025 CUN → MCO Jul 13, 18:40 UTCJul 13, 20:20 UTC1h 40m
2026-07-13 SWA1836 SAT → CUN Jul 13, 14:50 UTCJul 13, 17:05 UTC2h 15m
2026-07-13 SWA1396 - Jul 13, 13:10 UTCJul 13, 13:55 UTC45m
2026-07-13 SWA3109 OKC → DAL Jul 13, 10:50 UTCJul 13, 11:30 UTC40m
2026-07-13 SWA1274 - Jul 13, 05:35 UTCJul 13, 07:01 UTC1h 25m
2026-07-13 SWA4944 - Jul 13, 02:30 UTCJul 13, 04:35 UTC2h 5m
2026-07-12 SWA1033 - Jul 12, 17:05 UTCJul 12, 22:30 UTC5h 25m
2026-07-12 SWA3928 - Jul 12, 13:50 UTCJul 12, 15:25 UTC1h 35m
2026-07-12 SWA1207 - Jul 12, 11:25 UTCJul 12, 12:20 UTC55m
2026-07-12 SWA4812 STL → CMH Jul 12, 02:45 UTCJul 12, 03:45 UTC1h 0m
2026-07-12 SWA4812 STL → CMH Jul 12, 02:41 UTCJul 12, 03:41 UTC1h 0m
2026-07-11 SWA1986 CUN → STL Jul 11, 22:10 UTCJul 12, 01:20 UTC3h 10m
2026-07-11 SWA2005 SFO → DEN Jul 11, 17:40 UTCJul 11, 20:25 UTC2h 45m
2026-07-11 SWA2368 LAS → STL Jul 11, 13:40 UTCJul 11, 16:25 UTC2h 45m
2026-07-11 SWA4378 - Jul 11, 03:45 UTCJul 11, 06:01 UTC2h 15m
2026-07-11 SWA4378 DAL → LAS Jul 11, 03:44 UTCJul 11, 05:58 UTC2h 15m
2026-07-11 SWA54 - Jul 11, 01:40 UTCJul 11, 02:25 UTC45m
2026-07-10 SWA4704 - Jul 10, 23:50 UTCJul 11, 00:30 UTC40m
2026-07-10 SWA4704 HRL → HOU Jul 10, 23:46 UTCJul 11, 00:32 UTC46m
2026-07-10 SWA1984 - Jul 10, 22:20 UTCJul 10, 23:00 UTC40m
2026-07-10 SWA2294 - Jul 10, 18:15 UTCJul 10, 20:35 UTC2h 20m
2026-07-10 SWA2294 OMA → HOU Jul 10, 18:11 UTCJul 10, 20:36 UTC2h 26m
2026-07-10 SWA2294 - Jul 10, 15:05 UTCJul 10, 17:15 UTC2h 10m
2026-07-10 SWA3313 COS → LAS Jul 10, 12:20 UTCJul 10, 13:55 UTC1h 35m
2026-07-10 SWA3313 COS → LAS Jul 10, 12:19 UTCJul 10, 13:49 UTC1h 30m
2026-07-10 SWA4487 LAS → COS Jul 10, 03:45 UTCJul 10, 05:05 UTC1h 20m
2026-07-10 SWA3992 - Jul 10, 01:30 UTCJul 10, 02:40 UTC1h 10m
2026-07-10 SWA3992 STS → LAS Jul 10, 01:28 UTCJul 10, 02:34 UTC1h 7m
2026-07-09 SWA424 - Jul 9, 23:10 UTCJul 10, 00:20 UTC1h 10m
2026-07-09 SWA424 BUR → STS Jul 9, 23:10 UTCJul 10, 00:15 UTC1h 5m
2026-07-09 SWA3037 - Jul 9, 20:00 UTCJul 9, 20:50 UTC50m
2026-07-09 SWA3154 - Jul 9, 18:10 UTCJul 9, 19:05 UTC55m
2026-07-09 SWA3805 SMF → ONT Jul 9, 16:20 UTCJul 9, 17:20 UTC1h 0m
2026-07-09 SWA3544 - Jul 9, 13:55 UTCJul 9, 15:05 UTC1h 10m
2026-07-09 SWA3426 - Jul 9, 05:00 UTCJul 9, 05:50 UTC50m
2026-07-09 SWA3306 STL → PHX Jul 9, 00:40 UTCJul 9, 03:25 UTC2h 45m
2026-07-09 SWA3306 STL → PHX Jul 9, 00:38 UTCJul 9, 03:17 UTC2h 40m
2026-07-08 SWA556 - Jul 8, 21:40 UTCJul 8, 23:05 UTC1h 25m
2026-07-08 SWA556 VPS → STL Jul 8, 21:35 UTCJul 8, 23:02 UTC1h 28m
2026-07-08 SWA1087 - Jul 8, 18:25 UTCJul 8, 20:20 UTC1h 55m
2026-07-08 SWA1087 BWI → VPS Jul 8, 18:25 UTCJul 8, 20:21 UTC1h 56m
2026-07-08 SWA3458 - Jul 8, 16:40 UTCJul 8, 17:30 UTC50m
2026-07-08 SWA2722 - Jul 8, 14:50 UTCJul 8, 15:40 UTC50m
2026-07-08 SWA1475 - Jul 8, 12:15 UTCJul 8, 13:45 UTC1h 30m
2026-07-08 SWA1475 JAX → BWI Jul 8, 12:10 UTCJul 8, 13:40 UTC1h 31m
2026-07-08 SWA4624 - Jul 8, 01:35 UTCJul 8, 02:45 UTC1h 10m
2026-07-07 SWA4344 MSY → BNA Jul 7, 23:10 UTCJul 8, 00:25 UTC1h 15m

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 N7743B page for operator, model, and routing details .

Mode-S AA7AA6 frequently asked

What is Mode-S code AA7AA6?
AA7AA6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7743B.
Where is Mode-S AA7AA6 registered?
Mode-S code AA7AA6 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 AA7AA6 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7AA6, octal 52475246, decimal 11,172,518.
What flights does AA7AA6 operate?
Mode-S AA7AA6 has broadcast 20 distinct callsigns, including SWA937, SWA54, SWA328, SWA1996, SWA50.