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sensors Mode-S transponder

AA4011

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N76KA · operated by KENMORE AIR HARBOR LLC

Hex
AA4011
Octal
52440021
Decimal
11,157,521
Country
US
Tail
N76KA
Type
DH3T
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
178
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S AA4011.

Country allocation

The ICAO 24-bit address AA4011 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 1 distinct

Callsign Airline Flights Last seen
N76KA - 178 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N76KA - Jul 26, 20:50 UTCJul 26, 21:30 UTC40m
2026-07-26 N76KA - Jul 26, 19:00 UTCJul 26, 19:55 UTC55m
2026-07-26 N76KA KEH → KEH Jul 26, 15:45 UTCJul 26, 17:15 UTC1h 30m
2026-07-26 N76KA - Jul 26, 01:00 UTCJul 26, 02:10 UTC1h 10m
2026-07-25 N76KA - Jul 25, 22:10 UTCJul 26, 00:00 UTC1h 50m
2026-07-25 N76KA - Jul 25, 20:40 UTCJul 25, 21:30 UTC50m
2026-07-25 N76KA - Jul 25, 18:40 UTCJul 25, 19:40 UTC1h 0m
2026-07-25 N76KA KEH → KEH Jul 25, 15:50 UTCJul 25, 16:30 UTC40m
2026-07-23 N76KA - Jul 23, 23:05 UTCJul 23, 23:40 UTC35m
2026-07-23 N76KA KEH → YWH Jul 23, 21:40 UTCJul 23, 22:30 UTC50m
2026-07-23 N76KA - Jul 23, 19:25 UTCJul 23, 20:00 UTC35m
2026-07-23 N76KA - Jul 23, 16:55 UTCJul 23, 17:10 UTC15m
2026-07-23 N76KA - Jul 23, 15:45 UTCJul 23, 16:25 UTC40m
2026-07-23 N76KA - Jul 23, 15:00 UTCJul 23, 15:05 UTC5m
2026-07-22 N76KA - Jul 22, 23:35 UTCJul 23, 00:35 UTC1h 0m
2026-07-22 N76KA - Jul 22, 22:25 UTCJul 22, 22:40 UTC15m
2026-07-22 N76KA - Jul 22, 21:45 UTCJul 22, 21:55 UTC10m
2026-07-22 N76KA - Jul 22, 20:10 UTCJul 22, 20:25 UTC15m
2026-07-22 N76KA - Jul 22, 18:25 UTCJul 22, 19:25 UTC1h 0m
2026-07-21 N76KA - Jul 21, 22:55 UTCJul 21, 23:35 UTC40m
2026-07-21 N76KA - Jul 21, 21:45 UTCJul 21, 22:20 UTC35m
2026-07-21 N76KA - Jul 21, 21:10 UTCJul 21, 21:20 UTC10m
2026-07-21 N76KA - Jul 21, 19:25 UTCJul 21, 20:00 UTC35m
2026-07-21 N76KA - Jul 21, 18:05 UTCJul 21, 18:40 UTC35m
2026-07-21 N76KA - Jul 21, 15:10 UTCJul 21, 16:55 UTC1h 45m
2026-07-21 N76KA - Jul 21, 14:35 UTCJul 21, 14:45 UTC10m
2026-07-20 N76KA - Jul 20, 21:30 UTCJul 21, 00:15 UTC2h 44m
2026-07-20 N76KA - Jul 20, 19:45 UTCJul 20, 20:40 UTC55m
2026-07-20 N76KA - Jul 20, 18:20 UTCJul 20, 19:20 UTC1h 0m
2026-07-20 N76KA - Jul 20, 00:30 UTCJul 20, 02:20 UTC1h 50m
2026-07-19 N76KA - Jul 19, 23:15 UTCJul 19, 23:50 UTC35m
2026-07-19 N76KA - Jul 19, 21:50 UTCJul 19, 22:45 UTC55m
2026-07-19 N76KA - Jul 19, 18:55 UTCJul 19, 21:05 UTC2h 10m
2026-07-19 N76KA - Jul 19, 15:30 UTCJul 19, 17:15 UTC1h 45m
2026-07-18 N76KA - Jul 18, 22:30 UTCJul 18, 23:45 UTC1h 15m
2026-07-18 N76KA - Jul 18, 20:00 UTCJul 18, 21:55 UTC1h 55m
2026-07-18 N76KA - Jul 18, 18:15 UTCJul 18, 19:25 UTC1h 10m
2026-07-17 N76KA - Jul 17, 23:39 UTCJul 18, 00:39 UTC1h 0m
2026-07-17 N76KA - Jul 17, 21:50 UTCJul 17, 23:14 UTC1h 25m
2026-07-17 N76KA - Jul 17, 21:00 UTCJul 17, 21:15 UTC15m
2026-07-17 N76KA - Jul 17, 20:15 UTCJul 17, 20:25 UTC10m
2026-07-17 N76KA - Jul 17, 18:29 UTCJul 17, 19:35 UTC1h 5m
2026-07-15 N76KA - Jul 15, 23:25 UTCJul 16, 00:40 UTC1h 15m
2026-07-15 N76KA - Jul 15, 21:55 UTCJul 15, 22:45 UTC50m
2026-07-15 N76KA - Jul 15, 18:30 UTCJul 15, 20:35 UTC2h 5m
2026-07-14 N76KA - Jul 14, 23:15 UTCJul 15, 00:30 UTC1h 15m
2026-07-14 N76KA - Jul 14, 19:55 UTCJul 14, 22:40 UTC2h 45m
2026-07-14 N76KA - Jul 14, 18:15 UTCJul 14, 19:20 UTC1h 5m
2026-07-14 N76KA - Jul 14, 15:35 UTCJul 14, 17:00 UTC1h 25m
2026-07-12 N76KA - Jul 12, 22:50 UTCJul 13, 00:01 UTC1h 10m

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 N76KA page for operator, model, and routing details .

Mode-S AA4011 frequently asked

What is Mode-S code AA4011?
AA4011 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N76KA.
Where is Mode-S AA4011 registered?
Mode-S code AA4011 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 AA4011 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA4011, octal 52440021, decimal 11,157,521.
What flights does AA4011 operate?
Mode-S AA4011 has broadcast 1 distinct callsign, including N76KA.