sensors Mode-S transponder

AC6D45

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N90EP · operated by HEER PHILIPPE E

Hex
AC6D45
Octal
53066505
Decimal
11,300,165
Country
US
Tail
N90EP
No current signal · last broadcast Jul 26, 16:35 UTC
Flights observed
33
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 16:35 UTC

Last known position

Most recent position reported by Mode-S AC6D45.

Country allocation

The ICAO 24-bit address AC6D45 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
N90EP - 33 2026-07-26

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-26 N90EP - Jul 26, 16:00 UTCJul 26, 16:35 UTC35m
2026-07-22 N90EP - Jul 22, 21:10 UTCJul 23, 00:30 UTC3h 20m
2026-07-22 N90EP - Jul 22, 14:20 UTCJul 22, 17:35 UTC3h 15m
2026-07-21 N90EP - Jul 21, 22:35 UTCJul 21, 23:10 UTC35m
2026-07-16 N90EP IWS → IWS Jul 16, 16:40 UTCJul 16, 17:30 UTC50m
2026-07-11 N90EP - Jul 11, 18:30 UTCJul 11, 18:55 UTC25m
2026-07-11 N90EP - Jul 11, 16:25 UTCJul 11, 16:50 UTC25m
2026-07-11 N90EP - Jul 11, 14:15 UTCJul 11, 14:45 UTC30m
2026-06-13 N90EP - Jun 13, 18:55 UTCJun 13, 19:25 UTC30m
2026-06-13 N90EP - Jun 13, 14:35 UTCJun 13, 14:50 UTC15m
2026-06-02 N90EP - Jun 2, 15:45 UTCJun 2, 16:20 UTC35m
2026-05-23 N90EP - May 23, 15:55 UTCMay 23, 16:10 UTC15m
2026-05-22 N90EP - May 22, 17:00 UTCMay 22, 17:10 UTC10m
2026-05-14 N90EP - May 14, 21:25 UTCMay 14, 21:40 UTC15m
2026-05-14 N90EP - May 14, 19:05 UTCMay 14, 19:35 UTC30m
2026-05-12 N90EP - May 12, 20:30 UTCMay 12, 21:01 UTC30m
2026-05-11 N90EP - May 11, 20:40 UTCMay 11, 21:15 UTC35m
2026-05-11 N90EP - May 11, 19:25 UTCMay 11, 19:35 UTC10m
2026-05-09 N90EP IWS → IWS May 9, 18:45 UTCMay 9, 19:55 UTC1h 10m
2026-04-25 N90EP - Apr 25, 18:45 UTCApr 25, 19:15 UTC30m
2026-04-19 N90EP - Apr 19, 00:00 UTCApr 19, 00:10 UTC10m
2026-04-18 N90EP - Apr 18, 22:05 UTCApr 18, 22:55 UTC50m
2026-04-18 N90EP - Apr 18, 19:05 UTCApr 18, 21:10 UTC2h 5m
2026-04-18 N90EP - Apr 18, 17:05 UTCApr 18, 17:40 UTC35m
2026-04-18 N90EP - Apr 18, 14:40 UTCApr 18, 16:00 UTC1h 20m
2026-04-17 N90EP - Apr 17, 15:20 UTCApr 17, 16:05 UTC45m
2026-04-17 N90EP - Apr 17, 14:35 UTCApr 17, 15:15 UTC39m
2026-04-13 N90EP - Apr 13, 21:45 UTCApr 13, 22:15 UTC30m
2026-04-13 N90EP - Apr 13, 19:50 UTCApr 13, 20:45 UTC55m
2026-04-13 N90EP - Apr 13, 19:40 UTCApr 13, 20:10 UTC30m
2026-04-13 N90EP - Apr 13, 17:25 UTCApr 13, 19:10 UTC1h 45m
2026-04-13 N90EP - Apr 13, 15:45 UTCApr 13, 16:15 UTC30m
2026-04-13 N90EP - Apr 13, 14:40 UTCApr 13, 15:05 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 N90EP page for operator, model, and routing details .

Mode-S AC6D45 frequently asked

What is Mode-S code AC6D45?
AC6D45 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N90EP.
Where is Mode-S AC6D45 registered?
Mode-S code AC6D45 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 AC6D45 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC6D45, octal 53066505, decimal 11,300,165.
What flights does AC6D45 operate?
Mode-S AC6D45 has broadcast 1 distinct callsign, including N90EP.