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
Broadcasting now · callsign WWI70 · 45,000 ft
Flights observed
56
Distinct callsigns
1
Country
US
Last broadcast
35m ago

Current position

A9538B is currently broadcasting. Map zoomed to live position.

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 1 distinct

Callsign Airline Flights Last seen
WWI70 - 56 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 WWI70 - Jun 3, 22:50 UTCJun 4, 04:45 UTC5h 55m
2026-06-02 WWI70 - Jun 2, 18:20 UTCJun 3, 01:30 UTC7h 10m
2026-06-01 WWI70 - Jun 1, 09:40 UTCJun 1, 17:30 UTC7h 50m
2026-05-31 WWI70 - May 31, 16:05 UTCMay 31, 17:10 UTC1h 5m
2026-05-29 WWI70 BTS → TEB May 29, 13:10 UTCMay 29, 21:45 UTC8h 35m
2026-05-28 WWI70 BUD → BTS May 28, 13:45 UTCMay 28, 14:10 UTC25m
2026-05-28 WWI70 - May 28, 03:20 UTCMay 28, 10:40 UTC7h 20m
2026-05-27 WWI70 VNY → BGR May 27, 21:25 UTCMay 28, 02:10 UTC4h 45m
2026-05-25 WWI70 VNY → VNY May 25, 19:59 UTCMay 25, 20:55 UTC55m
2026-05-23 WWI70 - May 23, 23:10 UTCMay 23, 23:25 UTC15m
2026-05-23 WWI70 LAS → VNY May 23, 05:55 UTCMay 23, 06:35 UTC40m
2026-05-23 WWI70 TEB → LAS May 23, 00:25 UTCMay 23, 05:00 UTC4h 34m
2026-05-21 WWI70 - May 21, 19:15 UTCMay 21, 20:10 UTC55m
2026-05-21 WWI70 - May 21, 16:15 UTCMay 21, 18:40 UTC2h 25m
2026-05-21 WWI70 - May 21, 14:30 UTCMay 21, 14:50 UTC20m
2026-05-20 WWI70 - May 20, 00:10 UTCMay 20, 00:50 UTC40m
2026-05-19 WWI70 - May 19, 21:00 UTCMay 19, 22:50 UTC1h 50m
2026-05-18 WWI70 - May 18, 22:55 UTCMay 19, 00:25 UTC1h 30m
2026-05-18 WWI70 - May 18, 06:40 UTCMay 18, 09:40 UTC3h 0m
2026-05-17 WWI70 - May 17, 18:50 UTCMay 17, 22:25 UTC3h 35m
2026-05-17 WWI70 - May 17, 00:45 UTCMay 17, 03:00 UTC2h 15m
2026-05-16 WWI70 - May 16, 19:55 UTCMay 16, 23:45 UTC3h 50m
2026-05-15 WWI70 EDI → TEB May 15, 12:45 UTCMay 15, 19:20 UTC6h 34m
2026-05-14 WWI70 IAD → EDI May 14, 04:00 UTCMay 14, 10:25 UTC6h 25m
2026-05-14 WWI70 - May 14, 02:00 UTCMay 14, 02:45 UTC45m
2026-05-12 WWI70 IAD → TEB May 12, 23:01 UTCMay 12, 23:45 UTC45m
2026-05-12 WWI70 - May 12, 09:25 UTCMay 12, 17:55 UTC8h 30m
2026-05-09 WWI70 - May 9, 22:49 UTCMay 10, 07:10 UTC8h 20m
2026-05-08 WWI70 ORF → MDW May 8, 17:35 UTCMay 8, 19:30 UTC1h 55m
2026-05-08 WWI70 AUS → ORF May 8, 14:20 UTCMay 8, 16:40 UTC2h 20m
2026-05-07 WWI70 VNY → AUS May 7, 18:05 UTCMay 7, 20:40 UTC2h 35m
2026-05-06 WWI70 - May 6, 18:15 UTCMay 6, 23:25 UTC5h 10m
2026-05-03 WWI70 - May 3, 21:29 UTCMay 4, 01:44 UTC4h 15m
2026-04-30 WWI70 TEB → VNY Apr 30, 20:55 UTCMay 1, 02:00 UTC5h 5m
2026-04-30 WWI70 - Apr 30, 06:45 UTCApr 30, 07:05 UTC20m
2026-04-30 WWI70 - Apr 30, 04:35 UTCApr 30, 06:00 UTC1h 25m
2026-04-29 WWI70 - Apr 29, 18:40 UTCApr 29, 20:35 UTC1h 55m
2026-04-28 WWI70 - Apr 28, 19:30 UTCApr 28, 21:55 UTC2h 25m
2026-04-28 WWI70 - Apr 28, 07:50 UTCApr 28, 17:30 UTC9h 40m
2026-04-27 WWI70 - Apr 27, 13:00 UTCApr 27, 14:30 UTC1h 30m
2026-04-24 WWI70 - Apr 24, 00:20 UTCApr 24, 08:05 UTC7h 45m
2026-04-23 WWI70 - Apr 23, 16:05 UTCApr 23, 19:35 UTC3h 30m
2026-04-22 WWI70 - Apr 22, 23:25 UTCApr 23, 00:45 UTC1h 20m
2026-04-21 WWI70 - Apr 21, 21:30 UTCApr 21, 21:50 UTC20m
2026-04-21 WWI70 - Apr 21, 14:50 UTCApr 21, 20:05 UTC5h 15m
2026-04-20 WWI70 - Apr 20, 22:55 UTCApr 20, 23:50 UTC55m
2026-04-20 WWI70 - Apr 20, 21:25 UTCApr 20, 22:15 UTC50m
2026-04-19 WWI70 - Apr 19, 22:45 UTCApr 20, 01:40 UTC2h 55m
2026-04-17 WWI70 - Apr 17, 23:25 UTCApr 17, 23:40 UTC15m
2026-04-17 WWI70 - Apr 17, 21:25 UTCApr 17, 23:20 UTC1h 55m

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?
Yes. Mode-S A9538B is currently airborne.
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 1 distinct callsign, including WWI70.