Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC1F44

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N880QS · operated by NETJETS SALES INC, A-MARK PRECIOUS METALS INC, KISH DENISE M TRUSTEE, JCD HOLDINGS LLC, KARSH JEFFREY, LITA 5 LLC

Hex
AC1F44
Octal
53017504
Decimal
11,280,196
Country
US
Tail
N880QS
Type
C700
No current signal · last broadcast 31m ago
Flights observed
111
Distinct callsigns
2
Country
US
Last broadcast
31m ago

Last known position

Most recent position reported by Mode-S AC1F44.

Country allocation

The ICAO 24-bit address AC1F44 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 2 distinct

Callsign Airline Flights Last seen
EJA880 NetJets 101 2026-06-02
N880QS - 10 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 EJA880 SFO → HSH Jun 2, 16:20 UTCJun 2, 21:00 UTC4h 40m
2026-06-02 EJA880 SFO → HSH Jun 2, 14:05 UTCJun 2, 14:40 UTC35m
2026-06-01 EJA880 SFO → HSH Jun 1, 17:55 UTCJun 1, 21:50 UTC3h 55m
2026-06-01 EJA880 SFO → HSH Jun 1, 15:50 UTCJun 1, 17:00 UTC1h 10m
2026-05-31 EJA880 SFO → HSH May 31, 23:55 UTCJun 1, 01:05 UTC1h 10m
2026-05-31 EJA880 SFO → HSH May 31, 19:35 UTCMay 31, 22:45 UTC3h 10m
2026-05-31 EJA880 SFO → HSH May 31, 17:55 UTCMay 31, 18:30 UTC35m
2026-05-31 EJA880 SFO → HSH May 31, 16:50 UTCMay 31, 17:10 UTC20m
2026-05-30 EJA880 SFO → HSH May 30, 23:50 UTCMay 31, 00:00 UTC10m
2026-05-30 EJA880 SFO → HSH May 30, 22:30 UTCMay 30, 22:50 UTC20m
2026-05-30 EJA880 SFO → HSH May 30, 20:40 UTCMay 30, 21:45 UTC1h 5m
2026-05-30 EJA880 SFO → HSH May 30, 16:25 UTCMay 30, 18:05 UTC1h 40m
2026-05-30 EJA880 SFO → HSH May 30, 13:00 UTCMay 30, 15:05 UTC2h 5m
2026-05-29 EJA880 SFO → HSH May 29, 17:35 UTCMay 29, 19:50 UTC2h 15m
2026-05-29 EJA880 SFO → HSH May 29, 11:50 UTCMay 29, 13:30 UTC1h 40m
2026-05-29 EJA880 SFO → HSH May 29, 10:10 UTCMay 29, 10:25 UTC15m
2026-05-28 EJA880 SFO → HSH May 28, 20:20 UTCMay 28, 21:45 UTC1h 25m
2026-05-28 EJA880 SFO → HSH May 28, 15:30 UTCMay 28, 17:35 UTC2h 5m
2026-05-27 EJA880 SFO → HSH May 27, 17:05 UTCMay 28, 17:00 UTC23h 55m
2026-05-27 EJA880 SFO → HSH May 27, 14:55 UTCMay 27, 17:35 UTC2h 40m
2026-05-24 EJA880 SFO → HSH May 24, 18:40 UTCMay 24, 20:35 UTC1h 55m
2026-05-24 EJA880 SFO → HSH May 24, 02:45 UTCMay 24, 03:45 UTC1h 0m
2026-05-23 EJA880 SFO → HSH May 23, 19:30 UTCMay 23, 20:40 UTC1h 10m
2026-05-23 EJA880 SFO → HSH May 23, 17:35 UTCMay 23, 19:00 UTC1h 26m
2026-05-22 EJA880 SFO → HSH May 22, 21:00 UTCMay 23, 02:25 UTC5h 25m
2026-05-22 EJA880 SFO → HSH May 22, 17:35 UTCMay 22, 19:35 UTC2h 0m
2026-05-22 EJA880 SFO → HSH May 22, 14:20 UTCMay 22, 15:20 UTC1h 0m
2026-05-21 EJA880 SFO → HSH May 21, 22:40 UTCMay 22, 00:10 UTC1h 30m
2026-05-21 EJA880 SFO → HSH May 21, 19:20 UTCMay 21, 21:45 UTC2h 25m
2026-05-21 EJA880 SFO → HSH May 21, 16:10 UTCMay 21, 17:10 UTC1h 0m
2026-05-21 EJA880 SFO → HSH May 21, 02:25 UTCMay 21, 04:15 UTC1h 50m
2026-05-20 EJA880 SFO → HSH May 20, 18:45 UTCMay 20, 22:15 UTC3h 30m
2026-05-20 EJA880 SFO → HSH May 20, 15:55 UTCMay 20, 16:30 UTC35m
2026-05-20 EJA880 SFO → HSH May 20, 00:20 UTCMay 20, 03:20 UTC3h 0m
2026-05-19 EJA880 SFO → HSH May 19, 16:30 UTCMay 19, 21:10 UTC4h 40m
2026-05-18 EJA880 SFO → HSH May 18, 20:40 UTCMay 19, 00:50 UTC4h 10m
2026-05-18 EJA880 SFO → HSH May 18, 15:55 UTCMay 18, 17:45 UTC1h 50m
2026-05-18 EJA880 SFO → HSH May 18, 14:20 UTCMay 18, 14:40 UTC20m
2026-05-17 EJA880 SFO → HSH May 17, 23:30 UTCMay 18, 02:20 UTC2h 50m
2026-05-17 EJA880 SFO → HSH May 17, 20:01 UTCMay 17, 21:01 UTC1h 0m
2026-05-17 EJA880 SFO → HSH May 17, 16:35 UTCMay 17, 19:01 UTC2h 25m
2026-05-17 EJA880 SFO → HSH May 17, 15:15 UTCMay 17, 15:40 UTC25m
2026-05-16 EJA880 SFO → HSH May 16, 19:35 UTCMay 16, 22:40 UTC3h 5m
2026-05-16 EJA880 SFO → HSH May 16, 13:46 UTCMay 16, 15:45 UTC2h 0m
2026-05-16 EJA880 SFO → HSH May 16, 12:05 UTCMay 16, 12:40 UTC35m
2026-05-15 EJA880 SFO → HSH May 15, 23:10 UTCMay 16, 00:35 UTC1h 25m
2026-05-15 EJA880 SFO → HSH May 15, 21:40 UTCMay 15, 22:30 UTC50m
2026-05-15 EJA880 SFO → HSH May 15, 14:20 UTCMay 15, 16:35 UTC2h 14m
2026-05-14 EJA880 SFO → HSH May 14, 22:25 UTCMay 15, 01:35 UTC3h 10m
2026-05-14 N880QS - May 14, 19:10 UTCMay 14, 20:45 UTC1h 35m

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 N880QS page for operator, model, and routing details .

Mode-S AC1F44 frequently asked

What is Mode-S code AC1F44?
AC1F44 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N880QS.
Where is Mode-S AC1F44 registered?
Mode-S code AC1F44 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 AC1F44 broadcasting right now?
No active broadcast right now. Last signal was 31m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC1F44, octal 53017504, decimal 11,280,196.
What flights does AC1F44 operate?
Mode-S AC1F44 has broadcast 2 distinct callsigns, including EJA880, N880QS.