sensors Mode-S transponder

A9555B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N700JE · RAYTHEON 4000 Hawker Horizon · operated by HAWKER RC7 LLC

Hex
A9555B
Octal
52252533
Decimal
11,097,435
Country
US
Tail
N700JE
Type
HA4T
No current signal · last broadcast 1d ago
Flights observed
26
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A9555B.

Country allocation

The ICAO 24-bit address A9555B 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
TFF910 - 26 2026-07-12

Recent flights last 26

DateFlightRouteTakeoffLandingDuration
2026-07-12 TFF910 - Jul 12, 12:20 UTCJul 12, 13:35 UTC1h 15m
2026-07-06 TFF910 - Jul 6, 16:00 UTCJul 6, 16:25 UTC25m
2026-05-26 TFF910 - May 26, 22:50 UTCMay 26, 23:14 UTC25m
2026-05-25 TFF910 - May 25, 18:45 UTCMay 25, 20:15 UTC1h 29m
2026-05-24 TFF910 LUK → MDW May 24, 19:00 UTCMay 24, 19:45 UTC45m
2026-05-20 TFF910 - May 20, 22:10 UTCMay 20, 23:00 UTC50m
2026-05-20 TFF910 - May 20, 15:00 UTCMay 20, 16:30 UTC1h 30m
2026-05-19 TFF910 - May 19, 15:50 UTCMay 19, 17:05 UTC1h 15m
2026-05-16 TFF910 - May 16, 16:31 UTCMay 16, 17:25 UTC55m
2026-05-12 TFF910 - May 12, 16:55 UTCMay 12, 17:45 UTC50m
2026-05-11 TFF910 - May 11, 20:55 UTCMay 11, 22:35 UTC1h 39m
2026-05-04 TFF910 - May 4, 23:45 UTCMay 5, 02:10 UTC2h 25m
2026-05-04 TFF910 - May 4, 20:35 UTCMay 4, 21:00 UTC25m
2026-04-29 TFF910 - Apr 29, 13:35 UTCApr 29, 15:55 UTC2h 20m
2026-04-26 TFF910 - Apr 26, 15:20 UTCApr 26, 17:50 UTC2h 30m
2026-04-23 TFF910 - Apr 23, 19:05 UTCApr 23, 20:35 UTC1h 30m
2026-04-23 TFF910 - Apr 23, 13:30 UTCApr 23, 14:55 UTC1h 25m
2026-04-17 TFF910 - Apr 17, 20:10 UTCApr 17, 20:45 UTC35m
2026-04-17 TFF910 - Apr 17, 17:25 UTCApr 17, 19:20 UTC1h 55m
2026-04-17 TFF910 - Apr 17, 15:20 UTCApr 17, 17:15 UTC1h 55m
2026-04-16 TFF910 - Apr 16, 19:50 UTCApr 16, 20:05 UTC15m
2026-04-16 TFF910 - Apr 16, 17:15 UTCApr 16, 17:25 UTC10m
2026-04-16 TFF910 - Apr 16, 15:15 UTCApr 16, 17:10 UTC1h 55m
2026-04-16 TFF910 - Apr 16, 13:15 UTCApr 16, 15:10 UTC1h 55m
2026-04-16 TFF910 - Apr 16, 12:05 UTCApr 16, 13:05 UTC1h 0m
2026-04-13 TFF910 - Apr 13, 00:25 UTCApr 13, 03:00 UTC2h 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 N700JE page for operator, model, and routing details .

Mode-S A9555B frequently asked

What is Mode-S code A9555B?
A9555B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N700JE.
Where is Mode-S A9555B registered?
Mode-S code A9555B 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 A9555B broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9555B, octal 52252533, decimal 11,097,435.
What flights does A9555B operate?
Mode-S A9555B has broadcast 1 distinct callsign, including TFF910.