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sensors Mode-S transponder

A7B7FB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N597FX · BOMBARDIER BD-100 Challenger 350 · operated by FLEXJET LLC, HERMAN MILLER INC, DBN LLC, SUBSIDIARY ONE LLC, DNJA LLC, KOHLBERG JAMES A

Hex
A7B7FB
Octal
51733773
Decimal
10,991,611
Country
US
Tail
N597FX
Type
CL35
Broadcasting now · callsign LXJ597 · 22,425 ft
Flights observed
197
Distinct callsigns
1
Country
US
Last broadcast
4d ago

Current position

A7B7FB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7B7FB 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
LXJ597 - 197 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 LXJ597 - Jul 26, 22:25 UTCJul 26, 22:45 UTC20m
2026-07-26 LXJ597 - Jul 26, 18:45 UTCJul 26, 21:10 UTC2h 25m
2026-07-26 LXJ597 TEB → AUS Jul 26, 13:05 UTCJul 26, 16:15 UTC3h 10m
2026-07-25 LXJ597 - Jul 25, 22:20 UTCJul 25, 23:15 UTC55m
2026-07-25 LXJ597 - Jul 25, 15:30 UTCJul 25, 21:10 UTC5h 40m
2026-07-24 LXJ597 - Jul 24, 02:40 UTCJul 24, 03:50 UTC1h 10m
2026-07-24 LXJ597 - Jul 24, 00:40 UTCJul 24, 01:30 UTC50m
2026-07-23 LXJ597 - Jul 23, 20:05 UTCJul 23, 20:15 UTC10m
2026-07-23 LXJ597 - Jul 23, 00:20 UTCJul 23, 00:35 UTC15m
2026-07-22 LXJ597 - Jul 22, 18:50 UTCJul 22, 19:50 UTC1h 0m
2026-07-22 LXJ597 - Jul 22, 17:05 UTCJul 22, 17:30 UTC25m
2026-07-20 LXJ597 - Jul 20, 21:20 UTCJul 20, 22:30 UTC1h 10m
2026-07-20 LXJ597 - Jul 20, 19:55 UTCJul 20, 20:35 UTC40m
2026-07-20 LXJ597 - Jul 20, 12:10 UTCJul 20, 15:50 UTC3h 40m
2026-07-19 LXJ597 PWK → HPN Jul 19, 20:35 UTCJul 19, 22:30 UTC1h 55m
2026-07-19 LXJ597 - Jul 19, 16:30 UTCJul 19, 18:35 UTC2h 5m
2026-07-19 LXJ597 - Jul 19, 14:50 UTCJul 19, 15:35 UTC45m
2026-07-19 LXJ597 PIT → WWD Jul 19, 12:50 UTCJul 19, 13:45 UTC55m
2026-07-18 LXJ597 - Jul 18, 20:45 UTCJul 18, 21:15 UTC30m
2026-07-14 LXJ597 - Jul 14, 18:55 UTCJul 14, 19:55 UTC1h 0m
2026-07-14 LXJ597 - Jul 14, 14:40 UTCJul 14, 15:40 UTC1h 0m
2026-07-13 LXJ597 - Jul 13, 20:25 UTCJul 13, 21:25 UTC1h 0m
2026-07-13 LXJ597 - Jul 13, 16:55 UTCJul 13, 18:30 UTC1h 35m
2026-07-13 LXJ597 - Jul 13, 02:05 UTCJul 13, 03:45 UTC1h 40m
2026-07-12 LXJ597 - Jul 12, 05:20 UTCJul 12, 06:20 UTC1h 0m
2026-07-12 LXJ597 - Jul 12, 00:55 UTCJul 12, 02:40 UTC1h 45m
2026-07-10 LXJ597 - Jul 10, 20:00 UTCJul 10, 23:55 UTC3h 55m
2026-07-10 LXJ597 - Jul 10, 18:20 UTCJul 10, 18:50 UTC30m
2026-07-10 LXJ597 SJC → LAX Jul 10, 15:50 UTCJul 10, 16:45 UTC55m
2026-07-10 LXJ597 - Jul 10, 14:50 UTCJul 10, 15:00 UTC10m
2026-07-09 LXJ597 - Jul 9, 16:05 UTCJul 9, 19:15 UTC3h 10m
2026-07-09 LXJ597 - Jul 9, 12:45 UTCJul 9, 14:55 UTC2h 10m
2026-07-08 LXJ597 - Jul 8, 18:45 UTCJul 8, 21:15 UTC2h 30m
2026-07-08 LXJ597 FSD → PTK Jul 8, 15:15 UTCJul 8, 16:45 UTC1h 30m
2026-07-02 LXJ597 - Jul 2, 02:05 UTCJul 2, 02:20 UTC15m
2026-07-01 LXJ597 - Jul 1, 23:30 UTCJul 2, 00:45 UTC1h 15m
2026-07-01 LXJ597 - Jul 1, 20:45 UTCJul 1, 21:55 UTC1h 10m
2026-07-01 LXJ597 - Jul 1, 17:15 UTCJul 1, 19:05 UTC1h 50m
2026-07-01 LXJ597 - Jul 1, 02:10 UTCJul 1, 04:00 UTC1h 50m
2026-06-30 LXJ597 CDW → TEB Jun 30, 23:25 UTCJun 30, 23:35 UTC10m
2026-06-29 LXJ597 CAK → MMU Jun 29, 17:19 UTCJun 29, 18:14 UTC55m
2026-06-29 LXJ597 - Jun 29, 14:54 UTCJun 29, 16:19 UTC1h 25m
2026-06-29 LXJ597 - Jun 29, 00:10 UTCJun 29, 02:09 UTC2h 0m
2026-06-28 LXJ597 - Jun 28, 22:15 UTCJun 28, 23:14 UTC1h 0m
2026-06-28 LXJ597 - Jun 28, 16:49 UTCJun 28, 20:50 UTC4h 0m
2026-06-28 LXJ597 VNY → SJC Jun 28, 14:50 UTCJun 28, 15:44 UTC55m
2026-06-28 LXJ597 - Jun 28, 06:40 UTCJun 28, 08:09 UTC1h 30m
2026-06-28 LXJ597 - Jun 28, 02:14 UTCJun 28, 03:50 UTC1h 35m
2026-06-27 LXJ597 - Jun 27, 13:15 UTCJun 27, 19:05 UTC5h 50m
2026-06-27 LXJ597 - Jun 27, 11:20 UTCJun 27, 11:59 UTC40m

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 N597FX page for operator, model, and routing details .

Mode-S A7B7FB frequently asked

What is Mode-S code A7B7FB?
A7B7FB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N597FX.
Where is Mode-S A7B7FB registered?
Mode-S code A7B7FB 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 A7B7FB broadcasting right now?
Yes. Mode-S A7B7FB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7B7FB, octal 51733773, decimal 10,991,611.
What flights does A7B7FB operate?
Mode-S A7B7FB has broadcast 1 distinct callsign, including LXJ597.