Apparatus

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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
Broadcasting now · callsign EJA880 · 41,000 ft
Flights observed
193
Distinct callsigns
2
Country
US
Last broadcast
1h ago

Current position

AC1F44 is currently broadcasting. Map zoomed to live position.

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 - 177 2026-07-18
N880QS - 16 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 EJA880 - Jul 18, 17:50 UTCJul 18, 19:00 UTC1h 10m
2026-07-17 EJA880 - Jul 17, 18:25 UTCJul 17, 18:55 UTC30m
2026-07-17 EJA880 SAN → OAK Jul 17, 16:15 UTCJul 17, 17:15 UTC1h 0m
2026-07-16 EJA880 - Jul 16, 18:40 UTCJul 16, 19:45 UTC1h 5m
2026-07-16 EJA880 - Jul 16, 17:14 UTCJul 16, 17:35 UTC20m
2026-07-16 EJA880 - Jul 16, 10:29 UTCJul 16, 16:05 UTC5h 35m
2026-07-15 EJA880 - Jul 15, 18:50 UTCJul 15, 20:45 UTC1h 55m
2026-07-15 EJA880 - Jul 15, 17:10 UTCJul 15, 17:50 UTC40m
2026-07-15 EJA880 - Jul 15, 15:05 UTCJul 15, 15:45 UTC40m
2026-07-15 EJA880 - Jul 15, 13:10 UTCJul 15, 13:35 UTC25m
2026-07-15 EJA880 - Jul 15, 11:40 UTCJul 15, 12:20 UTC40m
2026-07-07 EJA880 - Jul 7, 23:35 UTCJul 8, 01:25 UTC1h 50m
2026-07-07 EJA880 - Jul 7, 18:00 UTCJul 7, 20:05 UTC2h 5m
2026-07-07 EJA880 COE → SCF Jul 7, 14:30 UTCJul 7, 16:30 UTC2h 0m
2026-07-06 EJA880 SJC → COE Jul 6, 21:55 UTCJul 6, 23:30 UTC1h 35m
2026-07-06 EJA880 - Jul 6, 11:55 UTCJul 6, 16:25 UTC4h 30m
2026-07-06 EJA880 - Jul 6, 02:15 UTCJul 6, 02:40 UTC25m
2026-07-05 EJA880 FID → FTY Jul 5, 23:00 UTCJul 6, 01:15 UTC2h 15m
2026-07-05 EJA880 - Jul 5, 21:50 UTCJul 5, 22:15 UTC25m
2026-07-05 EJA880 - Jul 5, 19:50 UTCJul 5, 20:40 UTC50m
2026-07-05 EJA880 - Jul 5, 15:05 UTCJul 5, 15:35 UTC30m
2026-07-04 EJA880 - Jul 4, 23:10 UTCJul 4, 23:55 UTC45m
2026-07-04 EJA880 - Jul 4, 21:10 UTCJul 4, 21:40 UTC30m
2026-07-04 EJA880 - Jul 4, 18:00 UTCJul 4, 19:05 UTC1h 5m
2026-07-03 EJA880 - Jul 3, 21:25 UTCJul 3, 21:40 UTC15m
2026-07-03 EJA880 - Jul 3, 19:15 UTCJul 3, 20:30 UTC1h 15m
2026-07-03 EJA880 - Jul 3, 16:45 UTCJul 3, 18:20 UTC1h 35m
2026-07-03 EJA880 - Jul 3, 14:55 UTCJul 3, 15:25 UTC30m
2026-07-02 EJA880 - Jul 2, 21:15 UTCJul 3, 00:45 UTC3h 30m
2026-07-02 EJA880 - Jul 2, 16:10 UTCJul 2, 17:05 UTC55m
2026-07-02 EJA880 - Jul 2, 00:05 UTCJul 2, 01:55 UTC1h 50m
2026-07-01 EJA880 - Jul 1, 20:35 UTCJul 1, 21:00 UTC25m
2026-07-01 EJA880 - Jul 1, 16:10 UTCJul 1, 19:20 UTC3h 10m
2026-06-30 EJA880 - Jun 30, 21:25 UTCJul 1, 00:10 UTC2h 45m
2026-06-30 EJA880 - Jun 30, 15:50 UTCJun 30, 18:35 UTC2h 45m
2026-06-30 EJA880 - Jun 30, 13:50 UTCJun 30, 15:00 UTC1h 10m
2026-06-20 EJA880 - Jun 20, 21:30 UTCJun 21, 00:34 UTC3h 5m
2026-06-17 EJA880 - Jun 17, 17:40 UTCJun 17, 19:40 UTC2h 0m
2026-06-17 EJA880 - Jun 17, 16:00 UTCJun 17, 16:50 UTC50m
2026-06-16 EJA880 - Jun 16, 21:50 UTCJun 16, 23:35 UTC1h 45m
2026-06-16 EJA880 - Jun 16, 16:00 UTCJun 16, 20:25 UTC4h 26m
2026-06-16 EJA880 - Jun 16, 14:50 UTCJun 16, 15:24 UTC35m
2026-06-15 EJA880 - Jun 15, 22:49 UTCJun 15, 23:30 UTC40m
2026-06-15 EJA880 - Jun 15, 14:30 UTCJun 15, 19:20 UTC4h 50m
2026-06-15 EJA880 TEB → HPN Jun 15, 12:30 UTCJun 15, 12:49 UTC20m
2026-06-15 EJA880 - Jun 15, 05:50 UTCJun 15, 09:40 UTC3h 50m
2026-06-15 EJA880 - Jun 15, 03:10 UTCJun 15, 03:40 UTC30m
2026-06-14 N880QS - Jun 14, 18:35 UTCJun 15, 01:10 UTC6h 34m
2026-06-14 EJA880 - Jun 14, 16:35 UTCJun 14, 17:25 UTC50m
2026-06-14 EJA880 - Jun 14, 14:50 UTCJun 14, 15:10 UTC20m

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?
Yes. Mode-S AC1F44 is currently airborne.
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.