sensors Mode-S transponder

A9BB45

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N726QS · BOMBARDIER BD-100 Challenger 350 · operated by NEJETS SALES INC, BOYNTON TRAIL LLC, PILGRIM LEASING LLC, DAY & ZIMMERMANN GROUP INC, TVPX AIRCRAFT SOLUTIONS INC TRUSTEE, TVPX ARS INC TRUSTEE

Hex
A9BB45
Octal
52335505
Decimal
11,123,525
Country
US
Tail
N726QS
Type
CL35
No current signal · last broadcast 8h ago
Flights observed
217
Distinct callsigns
2
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A9BB45.

Country allocation

The ICAO 24-bit address A9BB45 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
EJA726 - 190 2026-07-14
N726QS - 27 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EJA726 LAX → DAL Jul 14, 02:40 UTCJul 14, 05:20 UTC2h 40m
2026-07-14 EJA726 - Jul 14, 01:10 UTCJul 14, 01:25 UTC15m
2026-07-12 EJA726 - Jul 12, 20:05 UTCJul 12, 20:50 UTC45m
2026-07-12 EJA726 HSH → LAS Jul 12, 17:55 UTCJul 12, 18:01 UTC5m
2026-07-11 EJA726 - Jul 11, 22:10 UTCJul 11, 23:45 UTC1h 35m
2026-07-11 EJA726 - Jul 11, 18:25 UTCJul 11, 21:05 UTC2h 40m
2026-07-11 EJA726 - Jul 11, 15:00 UTCJul 11, 16:30 UTC1h 30m
2026-07-10 EJA726 - Jul 10, 23:10 UTCJul 11, 02:20 UTC3h 10m
2026-07-10 EJA726 VNY → SCF Jul 10, 17:35 UTCJul 10, 21:20 UTC3h 45m
2026-07-09 EJA726 - Jul 9, 20:45 UTCJul 10, 02:30 UTC5h 45m
2026-07-09 EJA726 BED → TEB Jul 9, 14:40 UTCJul 9, 15:35 UTC55m
2026-07-08 EJA726 - Jul 8, 22:10 UTCJul 8, 23:05 UTC55m
2026-07-08 EJA726 - Jul 8, 19:20 UTCJul 8, 20:20 UTC1h 0m
2026-07-08 EJA726 FTY → CMH Jul 8, 14:55 UTCJul 8, 16:00 UTC1h 5m
2026-07-08 EJA726 - Jul 8, 00:35 UTCJul 8, 01:40 UTC1h 5m
2026-07-07 EJA726 TEB → DAY Jul 7, 21:00 UTCJul 7, 22:25 UTC1h 25m
2026-07-07 EJA726 - Jul 7, 17:55 UTCJul 7, 19:40 UTC1h 45m
2026-07-07 EJA726 - Jul 7, 15:40 UTCJul 7, 16:55 UTC1h 15m
2026-07-06 EJA726 - Jul 6, 21:40 UTCJul 6, 23:30 UTC1h 50m
2026-07-06 EJA726 TEB → ABE Jul 6, 19:15 UTCJul 6, 19:50 UTC35m
2026-07-06 EJA726 - Jul 6, 00:05 UTCJul 6, 00:55 UTC50m
2026-07-05 EJA726 - Jul 5, 22:45 UTCJul 5, 23:20 UTC35m
2026-07-05 EJA726 - Jul 5, 21:40 UTCJul 5, 22:15 UTC35m
2026-07-05 EJA726 - Jul 5, 17:25 UTCJul 5, 18:30 UTC1h 5m
2026-07-05 EJA726 - Jul 5, 14:50 UTCJul 5, 15:45 UTC55m
2026-07-02 EJA726 BED → IAD Jul 2, 01:00 UTCJul 2, 02:05 UTC1h 5m
2026-07-01 EJA726 - Jul 1, 22:15 UTCJul 1, 23:50 UTC1h 35m
2026-07-01 EJA726 - Jul 1, 18:20 UTCJul 1, 19:10 UTC50m
2026-07-01 EJA726 - Jul 1, 15:50 UTCJul 1, 16:30 UTC40m
2026-07-01 EJA726 - Jul 1, 00:35 UTCJul 1, 01:30 UTC55m
2026-06-30 EJA726 - Jun 30, 23:00 UTCJul 1, 00:05 UTC1h 5m
2026-06-30 EJA726 - Jun 30, 16:25 UTCJun 30, 22:05 UTC5h 40m
2026-06-29 EJA726 - Jun 29, 23:34 UTCJun 30, 01:04 UTC1h 30m
2026-06-29 EJA726 - Jun 29, 20:59 UTCJun 29, 21:39 UTC40m
2026-06-28 EJA726 VNY → LAS Jun 28, 23:09 UTCJun 28, 23:44 UTC35m
2026-06-28 EJA726 TEB → VNY Jun 28, 16:25 UTCJun 28, 21:45 UTC5h 20m
2026-06-28 EJA726 LAS → TEB Jun 28, 05:20 UTCJun 28, 09:25 UTC4h 5m
2026-06-28 EJA726 SCF → LAS Jun 28, 02:10 UTCJun 28, 03:00 UTC50m
2026-06-27 EJA726 - Jun 27, 22:49 UTCJun 27, 23:50 UTC1h 0m
2026-06-27 EJA726 - Jun 27, 19:19 UTCJun 27, 21:19 UTC2h 0m
2026-06-27 EJA726 - Jun 27, 17:09 UTCJun 27, 17:29 UTC20m
2026-06-26 EJA726 VNY → BFI Jun 26, 20:15 UTCJun 26, 22:19 UTC2h 5m
2026-06-26 EJA726 - Jun 26, 17:54 UTCJun 26, 19:09 UTC1h 15m
2026-06-26 EJA726 OAK → TUS Jun 26, 15:05 UTCJun 26, 16:39 UTC1h 35m
2026-06-25 EJA726 - Jun 25, 22:59 UTCJun 26, 00:35 UTC1h 35m
2026-06-25 EJA726 - Jun 25, 20:25 UTCJun 25, 21:59 UTC1h 35m
2026-06-25 EJA726 - Jun 25, 18:24 UTCJun 25, 19:24 UTC1h 0m
2026-06-25 EJA726 SFO → ONT Jun 25, 16:39 UTCJun 25, 17:34 UTC55m
2026-06-25 EJA726 - Jun 25, 01:24 UTCJun 25, 02:19 UTC55m
2026-06-24 EJA726 - Jun 24, 18:44 UTCJun 25, 00:24 UTC5h 40m

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 N726QS page for operator, model, and routing details .

Mode-S A9BB45 frequently asked

What is Mode-S code A9BB45?
A9BB45 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N726QS.
Where is Mode-S A9BB45 registered?
Mode-S code A9BB45 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 A9BB45 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9BB45, octal 52335505, decimal 11,123,525.
What flights does A9BB45 operate?
Mode-S A9BB45 has broadcast 2 distinct callsigns, including EJA726, N726QS.