sensors Mode-S transponder

AC692A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8990Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC692A
Octal
53064452
Decimal
11,299,114
Country
US
Tail
N8990Q
Type
B38M
No current signal · last broadcast 14h ago
Flights observed
18
Distinct callsigns
9
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S AC692A.

Country allocation

The ICAO 24-bit address AC692A 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 9 distinct

Callsign Airline Flights Last seen
SWA2533 - 4 2026-04-13
SWA3708 Southwest Airlines 3 2026-04-14
SWA2577 Southwest Airlines 3 2026-04-13
SWA3555 - 2 2026-04-13
SWA1436 - 2 2026-04-13
SWA2876 - 1 2026-04-13
SWA2461 - 1 2026-04-14
SWA2277 - 1 2026-04-13
SWA1347 - 1 2026-04-12

Recent flights last 18

DateFlightRouteTakeoffLandingDuration
2026-04-14 SWA3708 PHL → DEN Apr 14, 09:10 UTCApr 14, 10:25 UTC1h 15m
2026-04-14 SWA3708 PHL → DEN Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 SWA3708 PHL → DEN Apr 14, 07:06 UTCApr 14, 10:44 UTC3h 38m
2026-04-14 SWA2461 - Apr 14, 05:15 UTCApr 14, 05:40 UTC25m
2026-04-13 SWA2277 - Apr 13, 21:56 UTCApr 13, 23:05 UTC1h 9m
2026-04-13 SWA3555 - Apr 13, 19:50 UTCApr 13, 20:45 UTC55m
2026-04-13 SWA3555 - Apr 13, 18:46 UTCApr 13, 20:49 UTC2h 3m
2026-04-13 SWA2577 MSY → LAX Apr 13, 16:15 UTCApr 13, 17:25 UTC1h 10m
2026-04-13 SWA2577 MSY → LAX Apr 13, 15:50 UTCApr 13, 17:25 UTC1h 35m
2026-04-13 SWA2577 MSY → LAX Apr 13, 15:02 UTCApr 13, 17:18 UTC2h 16m
2026-04-13 SWA2876 - Apr 13, 12:30 UTCApr 13, 13:20 UTC50m
2026-04-13 SWA2533 - Apr 13, 04:37 UTCApr 13, 07:32 UTC2h 55m
2026-04-13 SWA2533 - Apr 13, 04:06 UTCApr 13, 07:05 UTC2h 59m
2026-04-13 SWA2533 - Apr 13, 03:00 UTCApr 13, 03:30 UTC30m
2026-04-13 SWA2533 - Apr 13, 01:11 UTCApr 13, 02:44 UTC1h 33m
2026-04-13 SWA1436 - Apr 13, 00:20 UTCApr 13, 00:55 UTC35m
2026-04-12 SWA1436 - Apr 12, 23:55 UTCApr 13, 00:55 UTC1h 0m
2026-04-12 SWA1347 - Apr 12, 17:15 UTCApr 12, 19:30 UTC2h 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 N8990Q page for operator, model, and routing details .

Mode-S AC692A frequently asked

What is Mode-S code AC692A?
AC692A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8990Q.
Where is Mode-S AC692A registered?
Mode-S code AC692A 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 AC692A broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC692A, octal 53064452, decimal 11,299,114.
What flights does AC692A operate?
Mode-S AC692A has broadcast 9 distinct callsigns, including SWA2533, SWA3708, SWA2577, SWA3555, SWA1436.