sensors Mode-S transponder

AC5ED9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8966S · BOEING 737 MAX 8 · operated by BOEING CO

Hex
AC5ED9
Octal
53057331
Decimal
11,296,473
Country
US
Tail
N8966S
Type
B38M
Broadcasting now · callsign SWA2758 · 10,625 ft
Flights observed
19
Distinct callsigns
10
Country
US
Last broadcast
20h ago

Current position

AC5ED9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC5ED9 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 10 distinct

Callsign Airline Flights Last seen
SWA472 Southwest Airlines 3 2026-04-13
SWA333 Southwest Airlines 3 2026-04-13
SWA149 - 3 2026-04-13
SWA3496 - 2 2026-04-12
SWA3044 - 2 2026-04-14
SWA2425 - 2 2026-04-13
SWA4845 - 1 2026-04-13
SWA2253 - 1 2026-04-12
SWA2060 - 1 2026-04-13
SWA1050 - 1 2026-04-13

Recent flights last 19

DateFlightRouteTakeoffLandingDuration
2026-04-14 SWA3044 - Apr 14, 05:14 UTCApr 14, 06:18 UTC1h 4m
2026-04-14 SWA3044 - Apr 14, 05:14 UTCApr 14, 06:11 UTC57m
2026-04-13 SWA2060 - Apr 13, 22:39 UTCApr 14, 00:34 UTC1h 55m
2026-04-13 SWA472 BUR → SJC Apr 13, 19:50 UTCApr 13, 21:45 UTC1h 55m
2026-04-13 SWA472 BUR → SJC Apr 13, 17:47 UTCApr 13, 21:32 UTC3h 45m
2026-04-13 SWA472 BUR → SJC Apr 13, 17:48 UTCApr 13, 21:30 UTC3h 42m
2026-04-13 SWA149 - Apr 13, 16:15 UTCApr 13, 16:50 UTC35m
2026-04-13 SWA149 - Apr 13, 15:50 UTCApr 13, 16:50 UTC1h 0m
2026-04-13 SWA149 - Apr 13, 15:17 UTCApr 13, 16:48 UTC1h 31m
2026-04-13 SWA1050 - Apr 13, 12:20 UTCApr 13, 13:55 UTC1h 35m
2026-04-13 SWA4845 - Apr 13, 09:45 UTCApr 13, 10:50 UTC1h 5m
2026-04-13 SWA333 BUR → SFO Apr 13, 03:55 UTCApr 13, 04:25 UTC30m
2026-04-13 SWA333 BUR → SFO Apr 13, 02:09 UTCApr 13, 04:31 UTC2h 22m
2026-04-13 SWA333 BUR → SFO Apr 13, 02:07 UTCApr 13, 04:27 UTC2h 20m
2026-04-13 SWA2425 - Apr 13, 00:20 UTCApr 13, 00:35 UTC15m
2026-04-12 SWA2425 - Apr 12, 23:55 UTCApr 13, 00:35 UTC40m
2026-04-12 SWA3496 - Apr 12, 18:41 UTCApr 12, 20:08 UTC1h 27m
2026-04-12 SWA3496 - Apr 12, 18:51 UTCApr 12, 20:11 UTC1h 20m
2026-04-12 SWA2253 - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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 N8966S page for operator, model, and routing details .

Mode-S AC5ED9 frequently asked

What is Mode-S code AC5ED9?
AC5ED9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8966S.
Where is Mode-S AC5ED9 registered?
Mode-S code AC5ED9 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 AC5ED9 broadcasting right now?
Yes. Mode-S AC5ED9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5ED9, octal 53057331, decimal 11,296,473.
What flights does AC5ED9 operate?
Mode-S AC5ED9 has broadcast 10 distinct callsigns, including SWA472, SWA333, SWA149, SWA3496, SWA3044.