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sensors Mode-S transponder

AB7B38

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N839QS · CESSNA 700 Citation Longitude · operated by VER 700 LLC, OFFENBERG ALAN, CASCABELLES DOS LLC, CEPUKENAS CRAIGH A, CEPUKENAS DIANE M, VERNER JEREL

Hex
AB7B38
Octal
52675470
Decimal
11,238,200
Country
US
Tail
N839QS
Type
C700
Transponder active on ground
Flights observed
225
Distinct callsigns
2
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AB7B38.

Country allocation

The ICAO 24-bit address AB7B38 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
EJA839 NetJets 206 2026-07-26
N839QS - 19 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EJA839 SFO → TEB Jul 26, 20:30 UTCJul 26, 21:45 UTC1h 15m
2026-07-26 EJA839 SFO → TEB Jul 26, 18:50 UTCJul 26, 19:30 UTC40m
2026-07-26 EJA839 SFO → TEB Jul 26, 16:15 UTCJul 26, 17:20 UTC1h 5m
2026-07-26 EJA839 SFO → TEB Jul 26, 13:30 UTCJul 26, 14:30 UTC1h 0m
2026-07-25 EJA839 SFO → TEB Jul 25, 17:05 UTCJul 25, 17:55 UTC50m
2026-07-23 EJA839 SFO → TEB Jul 23, 23:20 UTCJul 24, 01:35 UTC2h 15m
2026-07-23 EJA839 SFO → TEB Jul 23, 21:00 UTCJul 23, 22:25 UTC1h 25m
2026-07-23 EJA839 SFO → TEB Jul 23, 19:20 UTCJul 23, 20:15 UTC55m
2026-07-23 EJA839 SFO → TEB Jul 23, 15:40 UTCJul 23, 17:40 UTC2h 0m
2026-07-23 EJA839 SFO → TEB Jul 23, 01:10 UTCJul 23, 01:45 UTC35m
2026-07-22 EJA839 SFO → TEB Jul 22, 17:50 UTCJul 22, 22:50 UTC5h 0m
2026-07-22 EJA839 SFO → TEB Jul 22, 15:35 UTCJul 22, 15:45 UTC10m
2026-07-22 EJA839 SFO → TEB Jul 22, 14:25 UTCJul 22, 15:10 UTC45m
2026-07-21 EJA839 SFO → TEB Jul 21, 23:15 UTCJul 21, 23:30 UTC15m
2026-07-21 EJA839 SFO → TEB Jul 21, 16:40 UTCJul 21, 22:30 UTC5h 50m
2026-07-21 EJA839 SFO → TEB Jul 21, 12:50 UTCJul 21, 14:55 UTC2h 5m
2026-07-20 EJA839 SFO → TEB Jul 20, 21:05 UTCJul 20, 22:25 UTC1h 20m
2026-07-20 EJA839 SFO → TEB Jul 20, 17:30 UTCJul 20, 18:50 UTC1h 20m
2026-07-20 EJA839 SFO → TEB Jul 20, 13:05 UTCJul 20, 15:45 UTC2h 40m
2026-07-19 EJA839 SFO → TEB Jul 19, 22:15 UTCJul 19, 23:40 UTC1h 25m
2026-07-19 EJA839 SFO → TEB Jul 19, 20:00 UTCJul 19, 21:15 UTC1h 15m
2026-07-19 EJA839 SFO → TEB Jul 19, 17:40 UTCJul 19, 17:50 UTC10m
2026-07-19 EJA839 SFO → TEB Jul 19, 16:20 UTCJul 19, 17:10 UTC50m
2026-07-19 EJA839 SFO → TEB Jul 19, 13:15 UTCJul 19, 14:55 UTC1h 40m
2026-07-14 EJA839 - Jul 14, 23:15 UTCJul 15, 00:20 UTC1h 5m
2026-07-14 EJA839 - Jul 14, 20:50 UTCJul 14, 21:55 UTC1h 5m
2026-07-14 EJA839 - Jul 14, 18:10 UTCJul 14, 19:40 UTC1h 30m
2026-07-13 EJA839 - Jul 13, 13:00 UTCJul 13, 13:25 UTC25m
2026-07-12 EJA839 - Jul 12, 21:40 UTCJul 12, 23:30 UTC1h 50m
2026-07-12 EJA839 - Jul 12, 20:15 UTCJul 12, 20:45 UTC30m
2026-07-12 EJA839 - Jul 12, 19:01 UTCJul 12, 19:10 UTC10m
2026-07-12 EJA839 - Jul 12, 15:01 UTCJul 12, 17:40 UTC2h 40m
2026-07-11 EJA839 LGA → BED Jul 11, 22:10 UTCJul 11, 22:50 UTC40m
2026-07-11 EJA839 - Jul 11, 17:30 UTCJul 11, 19:00 UTC1h 30m
2026-07-11 EJA839 - Jul 11, 11:35 UTCJul 11, 13:05 UTC1h 30m
2026-07-10 EJA839 - Jul 10, 21:45 UTCJul 10, 22:40 UTC55m
2026-07-10 EJA839 - Jul 10, 14:50 UTCJul 10, 15:40 UTC50m
2026-07-10 EJA839 - Jul 10, 12:15 UTCJul 10, 13:30 UTC1h 15m
2026-07-09 EJA839 - Jul 9, 19:50 UTCJul 9, 20:40 UTC50m
2026-07-09 EJA839 - Jul 9, 18:35 UTCJul 9, 19:05 UTC30m
2026-07-09 EJA839 - Jul 9, 14:05 UTCJul 9, 14:50 UTC45m
2026-07-09 EJA839 - Jul 9, 11:45 UTCJul 9, 12:20 UTC35m
2026-07-09 EJA839 - Jul 9, 05:10 UTCJul 9, 09:50 UTC4h 40m
2026-07-09 EJA839 SJC → SDM Jul 9, 03:05 UTCJul 9, 04:05 UTC1h 0m
2026-07-07 EJA839 - Jul 7, 19:50 UTCJul 7, 20:30 UTC40m
2026-07-07 EJA839 - Jul 7, 16:30 UTCJul 7, 16:40 UTC10m
2026-07-07 EJA839 - Jul 7, 13:55 UTCJul 7, 15:00 UTC1h 5m
2026-07-07 EJA839 BFI → NUQ Jul 7, 04:50 UTCJul 7, 06:30 UTC1h 40m
2026-07-06 EJA839 - Jul 6, 23:55 UTCJul 7, 01:50 UTC1h 55m
2026-07-06 EJA839 - Jul 6, 21:35 UTCJul 6, 22:25 UTC50m

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 N839QS page for operator, model, and routing details .

Mode-S AB7B38 frequently asked

What is Mode-S code AB7B38?
AB7B38 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N839QS.
Where is Mode-S AB7B38 registered?
Mode-S code AB7B38 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 AB7B38 broadcasting right now?
Mode-S AB7B38 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7B38, octal 52675470, decimal 11,238,200.
What flights does AB7B38 operate?
Mode-S AB7B38 has broadcast 2 distinct callsigns, including EJA839, N839QS.