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
Broadcasting now · callsign SWA180 · 36,000 ft
Flights observed
15
Distinct callsigns
6
Country
US
Last broadcast
23h ago

Current position

AA7AA6 is currently broadcasting. Map zoomed to live position.

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 6 distinct

Callsign Airline Flights Last seen
SWA2433 - 4 2026-04-13
SWA1118 Southwest Airlines 4 2026-04-13
SWA1607 - 3 2026-04-12
SWA3124 - 2 2026-04-13
SWA48 - 1 2026-04-13
SWA2299 - 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-13 SWA2299 - Apr 13, 22:02 UTCApr 13, 23:37 UTC1h 35m
2026-04-13 SWA3124 - Apr 13, 19:50 UTCApr 13, 21:00 UTC1h 10m
2026-04-13 SWA3124 - Apr 13, 18:55 UTCApr 13, 21:00 UTC2h 5m
2026-04-13 SWA2433 - Apr 13, 16:40 UTCApr 13, 17:39 UTC59m
2026-04-13 SWA2433 AUS → ATL Apr 13, 13:50 UTCApr 13, 15:35 UTC1h 45m
2026-04-13 SWA2433 - Apr 13, 12:20 UTCApr 13, 12:50 UTC30m
2026-04-13 SWA2433 - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 SWA1118 STL → DCA Apr 13, 04:52 UTCApr 13, 05:39 UTC47m
2026-04-13 SWA1118 STL → DCA Apr 13, 03:55 UTCApr 13, 04:00 UTC5m
2026-04-13 SWA1118 STL → DCA Apr 13, 03:00 UTCApr 13, 04:00 UTC1h 0m
2026-04-13 SWA1118 STL → DCA Apr 13, 01:32 UTCApr 13, 02:13 UTC41m
2026-04-13 SWA48 - Apr 13, 00:27 UTCApr 13, 01:44 UTC1h 17m
2026-04-12 SWA1607 - Apr 12, 18:50 UTCApr 12, 19:00 UTC10m
2026-04-12 SWA1607 - Apr 12, 16:05 UTCApr 12, 19:02 UTC2h 57m
2026-04-12 SWA1607 - Apr 12, 17:15 UTCApr 12, 18:00 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 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?
Yes. Mode-S AA7AA6 is currently airborne.
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 6 distinct callsigns, including SWA2433, SWA1118, SWA1607, SWA3124, SWA48.