Apparatus

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sensors Mode-S transponder

A954AA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N700BC · BOMBARDIER BD-100 Challenger 300 · operated by COX AVIATION LLC

Hex
A954AA
Octal
52252252
Decimal
11,097,258
Country
US
Tail
N700BC
Type
CL30
No current signal · last broadcast 1d ago
Flights observed
33
Distinct callsigns
2
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A954AA.

Country allocation

The ICAO 24-bit address A954AA 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
WSN700 - 32 2026-07-13
N700BC - 1 2026-06-01

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-13 WSN700 SJC → HHR Jul 13, 01:35 UTCJul 13, 02:30 UTC55m
2026-07-12 WSN700 - Jul 12, 19:40 UTCJul 12, 20:30 UTC50m
2026-07-12 WSN700 - Jul 12, 17:30 UTCJul 12, 17:50 UTC20m
2026-07-12 WSN700 - Jul 12, 10:40 UTCJul 12, 11:35 UTC55m
2026-07-12 WSN700 - Jul 12, 09:25 UTCJul 12, 10:10 UTC45m
2026-07-12 WSN700 LAS → HHR Jul 12, 08:05 UTCJul 12, 08:45 UTC40m
2026-07-11 WSN700 - Jul 11, 22:05 UTCJul 11, 22:45 UTC40m
2026-07-10 WSN700 - Jul 10, 15:40 UTCJul 10, 16:35 UTC55m
2026-07-10 WSN700 - Jul 10, 13:40 UTCJul 10, 14:30 UTC50m
2026-07-09 WSN700 - Jul 9, 00:30 UTCJul 9, 00:45 UTC15m
2026-07-08 WSN700 SJC → SNA Jul 8, 22:50 UTCJul 8, 23:50 UTC1h 0m
2026-07-08 WSN700 - Jul 8, 20:10 UTCJul 8, 21:00 UTC50m
2026-07-07 WSN700 - Jul 7, 23:50 UTCJul 8, 02:20 UTC2h 30m
2026-07-07 WSN700 - Jul 7, 14:40 UTCJul 7, 16:55 UTC2h 15m
2026-07-03 WSN700 - Jul 3, 19:35 UTCJul 3, 20:05 UTC30m
2026-07-03 WSN700 SJC → SBA Jul 3, 18:20 UTCJul 3, 19:05 UTC45m
2026-07-03 WSN700 - Jul 3, 15:40 UTCJul 3, 16:30 UTC50m
2026-06-23 WSN700 ICT → LAS Jun 23, 00:39 UTCJun 23, 01:35 UTC55m
2026-06-22 WSN700 ICT → LAS Jun 22, 23:20 UTCJun 23, 00:04 UTC45m
2026-06-22 WSN700 ICT → LAS Jun 22, 17:40 UTCJun 22, 18:40 UTC1h 0m
2026-06-21 WSN700 ICT → LAS Jun 21, 21:54 UTCJun 21, 22:44 UTC50m
2026-06-19 WSN700 ICT → LAS Jun 19, 17:14 UTCJun 19, 18:05 UTC50m
2026-06-19 WSN700 ICT → LAS Jun 19, 14:34 UTCJun 19, 15:34 UTC1h 0m
2026-06-13 WSN700 ICT → LAS Jun 13, 02:25 UTCJun 13, 03:15 UTC50m
2026-06-13 WSN700 ICT → LAS Jun 13, 00:25 UTCJun 13, 02:00 UTC1h 35m
2026-06-12 WSN700 ICT → LAS Jun 12, 20:30 UTCJun 12, 21:05 UTC35m
2026-06-12 WSN700 ICT → LAS Jun 12, 13:15 UTCJun 12, 14:30 UTC1h 15m
2026-06-10 WSN700 ICT → LAS Jun 10, 21:15 UTCJun 11, 02:35 UTC5h 20m
2026-06-09 WSN700 ICT → LAS Jun 9, 21:05 UTCJun 10, 01:55 UTC4h 50m
2026-06-09 WSN700 ICT → LAS Jun 9, 18:45 UTCJun 9, 19:40 UTC55m
2026-06-03 WSN700 ICT → LAS Jun 3, 22:30 UTCJun 3, 23:10 UTC40m
2026-06-03 WSN700 ICT → LAS Jun 3, 18:05 UTCJun 3, 20:15 UTC2h 10m
2026-06-01 N700BC - Jun 1, 21:35 UTCJun 1, 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 N700BC page for operator, model, and routing details .

Mode-S A954AA frequently asked

What is Mode-S code A954AA?
A954AA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N700BC.
Where is Mode-S A954AA registered?
Mode-S code A954AA 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 A954AA 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 A954AA, octal 52252252, decimal 11,097,258.
What flights does A954AA operate?
Mode-S A954AA has broadcast 2 distinct callsigns, including WSN700, N700BC.