Apparatus

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sensors Mode-S transponder

A9538B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N70PS · BOMBARDIER BD-700 Global 6000/6500 · operated by ONEIDA II LLC

Hex
A9538B
Octal
52251613
Decimal
11,096,971
Country
US
Tail
N70PS
Type
GLEX
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
106
Distinct callsigns
2
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S A9538B.

Country allocation

The ICAO 24-bit address A9538B 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
WWI70 - 105 2026-07-26
N70PS - 1 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WWI70 - Jul 26, 11:20 UTCJul 26, 22:45 UTC11h 25m
2026-07-24 WWI70 - Jul 24, 01:40 UTCJul 24, 12:15 UTC10h 35m
2026-07-23 WWI70 - Jul 23, 02:25 UTCJul 23, 03:10 UTC45m
2026-07-22 WWI70 - Jul 22, 22:30 UTCJul 23, 01:40 UTC3h 10m
2026-07-22 WWI70 TEB → XNA Jul 22, 19:10 UTCJul 22, 21:40 UTC2h 30m
2026-07-22 WWI70 - Jul 22, 01:20 UTCJul 22, 02:10 UTC50m
2026-07-20 WWI70 TEB → VNY Jul 20, 13:05 UTCJul 20, 18:00 UTC4h 55m
2026-07-20 WWI70 - Jul 20, 05:50 UTCJul 20, 08:00 UTC2h 10m
2026-07-19 WWI70 LPL → SUA Jul 19, 20:15 UTCJul 20, 04:40 UTC8h 25m
2026-07-19 WWI70 - Jul 19, 17:10 UTCJul 19, 17:45 UTC35m
2026-07-18 WWI70 TEB → LTN Jul 18, 15:15 UTCJul 18, 21:30 UTC6h 15m
2026-07-16 WWI70 - Jul 16, 11:50 UTCJul 16, 13:40 UTC1h 50m
2026-07-15 WWI70 - Jul 15, 13:50 UTCJul 15, 15:40 UTC1h 50m
2026-07-13 WWI70 - Jul 13, 22:40 UTCJul 13, 23:15 UTC35m
2026-07-13 WWI70 - Jul 13, 13:25 UTCJul 13, 21:10 UTC7h 45m
2026-07-11 WWI70 - Jul 11, 10:20 UTCJul 11, 10:50 UTC30m
2026-07-11 N70PS TEB → NCE Jul 11, 01:55 UTCJul 11, 08:55 UTC7h 0m
2026-07-10 WWI70 BYJ → TEB Jul 10, 08:35 UTCJul 10, 15:45 UTC7h 10m
2026-07-09 WWI70 - Jul 9, 14:30 UTCJul 9, 16:25 UTC1h 55m
2026-07-08 WWI70 - Jul 8, 14:20 UTCJul 8, 21:45 UTC7h 25m
2026-07-07 WWI70 - Jul 7, 05:30 UTCJul 7, 05:45 UTC15m
2026-07-07 WWI70 - Jul 7, 02:15 UTCJul 7, 04:10 UTC1h 55m
2026-07-06 WWI70 VNY → BNA Jul 6, 19:35 UTCJul 7, 01:35 UTC6h 0m
2026-07-06 WWI70 - Jul 6, 05:30 UTCJul 6, 05:40 UTC10m
2026-07-05 WWI70 - Jul 5, 23:30 UTCJul 6, 04:25 UTC4h 55m
2026-07-05 WWI70 - Jul 5, 02:30 UTCJul 5, 03:20 UTC50m
2026-07-04 WWI70 - Jul 4, 21:15 UTCJul 4, 21:55 UTC40m
2026-06-27 WWI70 - Jun 27, 00:20 UTCJun 27, 01:00 UTC40m
2026-06-26 WWI70 STN → TEB Jun 26, 13:55 UTCJun 26, 20:59 UTC7h 5m
2026-06-25 WWI70 - Jun 25, 12:25 UTCJun 25, 18:19 UTC5h 55m
2026-06-24 WWI70 - Jun 24, 20:44 UTCJun 24, 23:04 UTC2h 20m
2026-06-24 WWI70 - Jun 24, 15:24 UTCJun 24, 16:50 UTC1h 25m
2026-06-24 WWI70 - Jun 24, 14:04 UTCJun 24, 14:39 UTC35m
2026-06-22 WWI70 - Jun 22, 21:30 UTCJun 23, 04:35 UTC7h 5m
2026-06-22 WWI70 - Jun 22, 15:40 UTCJun 22, 17:50 UTC2h 10m
2026-06-20 WWI70 - Jun 20, 00:59 UTCJun 20, 10:44 UTC9h 45m
2026-06-19 WWI70 - Jun 19, 01:45 UTCJun 19, 02:14 UTC30m
2026-06-19 WWI70 - Jun 19, 00:24 UTCJun 19, 01:04 UTC40m
2026-06-18 WWI70 KEF → SJC Jun 18, 15:10 UTCJun 18, 23:10 UTC8h 0m
2026-06-13 WWI70 - Jun 13, 14:30 UTCJun 13, 19:20 UTC4h 50m
2026-06-12 WWI70 - Jun 12, 13:45 UTCJun 12, 20:45 UTC7h 0m
2026-06-11 WWI70 - Jun 11, 12:30 UTCJun 11, 18:40 UTC6h 10m
2026-06-10 WWI70 OPF → TEB Jun 10, 17:35 UTCJun 10, 20:15 UTC2h 40m
2026-06-10 WWI70 - Jun 10, 15:20 UTCJun 10, 15:40 UTC20m
2026-06-10 WWI70 - Jun 10, 04:55 UTCJun 10, 13:30 UTC8h 35m
2026-06-09 WWI70 - Jun 9, 05:15 UTCJun 9, 07:45 UTC2h 30m
2026-06-07 WWI70 IAD → AMS Jun 7, 07:10 UTCJun 7, 14:00 UTC6h 50m
2026-06-06 WWI70 - Jun 6, 12:54 UTCJun 6, 21:25 UTC8h 30m
2026-06-06 WWI70 - Jun 6, 11:00 UTCJun 6, 11:39 UTC40m
2026-06-05 WWI70 - Jun 5, 15:50 UTCJun 5, 17:55 UTC2h 5m

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 N70PS page for operator, model, and routing details .

Mode-S A9538B frequently asked

What is Mode-S code A9538B?
A9538B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N70PS.
Where is Mode-S A9538B registered?
Mode-S code A9538B 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 A9538B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9538B, octal 52251613, decimal 11,096,971.
What flights does A9538B operate?
Mode-S A9538B has broadcast 2 distinct callsigns, including WWI70, N70PS.