Apparatus

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sensors Mode-S transponder

A1B08B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N208JH · CESSNA 208 Caravan · operated by WATERMAKERS AIR INC

Hex
A1B08B
Octal
50330213
Decimal
10,596,491
Country
US
Tail
N208JH
Type
C208
No current signal · last broadcast 9d ago
Flights observed
81
Distinct callsigns
20
Country
US
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S A1B08B.

Country allocation

The ICAO 24-bit address A1B08B 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 20 distinct

Callsign Airline Flights Last seen
WMA2407 Watermakers Air 10 2026-06-28
WMA2404 Watermakers Air 6 2026-06-28
WMA1534 - 6 2026-07-01
WMA1533 Watermakers Air 6 2026-07-18
WMA9726 Watermakers Air 3 2026-06-29
WMA882 - 3 2026-05-12
WMA881 - 3 2026-05-12
WMA634 Watermakers Air 3 2026-06-28
WMA3226 Watermakers Air 3 2026-06-16
WMA9725 - 2 2026-06-29
WMA954 Watermakers Air 2 2026-06-23
WMA675 - 2 2026-07-02
WMA635 - 2 2026-06-24
WMA517 - 2 2026-06-28
WMA4681 - 2 2026-07-01
WMA3216 - 2 2026-07-05
WMA3215 - 2 2026-07-05
WMA242 - 2 2026-06-22
WMA2112 - 2 2026-07-02
N208JH - 2 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 WMA1533 FXE → GHC Jul 18, 17:00 UTCJul 18, 17:10 UTC10m
2026-07-05 WMA3216 - Jul 5, 21:05 UTCJul 5, 21:30 UTC25m
2026-07-05 WMA3215 - Jul 5, 17:10 UTCJul 5, 17:45 UTC35m
2026-07-02 WMA676 - Jul 2, 21:25 UTCJul 2, 22:05 UTC40m
2026-07-02 WMA675 - Jul 2, 17:00 UTCJul 2, 17:35 UTC35m
2026-07-02 WMA876 - Jul 2, 14:50 UTCJul 2, 15:20 UTC30m
2026-07-02 WMA2112 - Jul 2, 10:55 UTCJul 2, 11:35 UTC40m
2026-07-01 WMA1534 - Jul 1, 20:15 UTCJul 1, 21:00 UTC45m
2026-07-01 WMA4681 - Jul 1, 17:00 UTCJul 1, 17:30 UTC30m
2026-06-29 WMA9726 ELH → FLL Jun 29, 17:55 UTCJun 29, 19:49 UTC1h 55m
2026-06-29 WMA9725 - Jun 29, 11:50 UTCJun 29, 13:54 UTC2h 5m
2026-06-28 WMA517 - Jun 28, 20:34 UTCJun 28, 21:14 UTC40m
2026-06-28 WMA634 FXE → SAQ Jun 28, 16:35 UTCJun 28, 17:10 UTC35m
2026-06-28 WMA2407 TZN → FXE Jun 28, 14:09 UTCJun 28, 14:45 UTC35m
2026-06-28 WMA2404 FXE → TZN Jun 28, 11:59 UTCJun 28, 12:44 UTC45m
2026-06-27 WMA2407 TZN → FXE Jun 27, 14:25 UTCJun 27, 15:05 UTC40m
2026-06-26 WMA1533 - Jun 26, 17:00 UTCJun 26, 17:40 UTC40m
2026-06-26 WMA9684 TZN → FXE Jun 26, 14:55 UTCJun 26, 15:10 UTC15m
2026-06-26 WMA9683 FXE → SUA Jun 26, 10:39 UTCJun 26, 11:09 UTC30m
2026-06-25 WMA1534 - Jun 25, 18:39 UTCJun 25, 19:20 UTC40m
2026-06-25 WMA1533 - Jun 25, 16:59 UTCJun 25, 17:39 UTC40m
2026-06-25 WMA2407 TZN → FXE Jun 25, 14:09 UTCJun 25, 14:50 UTC40m
2026-06-25 WMA2404 FXE → TZN Jun 25, 10:35 UTCJun 25, 11:25 UTC50m
2026-06-24 WMA1534 - Jun 24, 20:40 UTCJun 24, 21:19 UTC40m
2026-06-24 WMA1533 - Jun 24, 16:34 UTCJun 24, 17:14 UTC40m
2026-06-24 WMA635 - Jun 24, 14:24 UTCJun 24, 15:05 UTC40m
2026-06-24 WMA634 FXE → SAQ Jun 24, 10:45 UTCJun 24, 11:24 UTC40m
2026-06-23 WMA9726 ELH → FLL Jun 23, 20:59 UTCJun 23, 23:24 UTC2h 25m
2026-06-23 WMA9726 ELH → FLL Jun 23, 19:50 UTCJun 23, 20:24 UTC35m
2026-06-23 WMA9725 FXE → FLL Jun 23, 17:04 UTCJun 23, 17:34 UTC30m
2026-06-23 WMA954 SML → FXE Jun 23, 13:19 UTCJun 23, 13:59 UTC40m
2026-06-22 WMA242 - Jun 22, 19:34 UTCJun 22, 20:14 UTC40m
2026-06-22 WMA9949 FLL → FXE Jun 22, 14:05 UTCJun 22, 14:55 UTC50m
2026-06-22 WMA9948 FXE → MHH Jun 22, 10:55 UTCJun 22, 11:19 UTC25m
2026-06-21 WMA1534 - Jun 21, 20:59 UTCJun 21, 21:34 UTC35m
2026-06-21 WMA675 - Jun 21, 17:05 UTCJun 21, 17:39 UTC35m
2026-06-21 WMA2407 TZN → FXE Jun 21, 14:54 UTCJun 21, 15:34 UTC40m
2026-06-21 WMA2404 FXE → TZN Jun 21, 11:00 UTCJun 21, 11:40 UTC40m
2026-06-20 WMA2407 TZN → FXE Jun 20, 14:29 UTCJun 20, 15:09 UTC40m
2026-06-20 WMA2404 FXE → TZN Jun 20, 10:34 UTCJun 20, 11:20 UTC45m
2026-06-19 WMA2407 TZN → FXE Jun 19, 17:59 UTCJun 19, 18:49 UTC50m
2026-06-19 WMA412 FXE → TZN Jun 19, 13:59 UTCJun 19, 14:44 UTC45m
2026-06-18 WMA9372 SML → FXE Jun 18, 21:15 UTCJun 18, 21:40 UTC25m
2026-06-18 WMA9371 FXE → MHH Jun 18, 18:25 UTCJun 18, 19:05 UTC40m
2026-06-17 WMA954 SML → FXE Jun 17, 21:05 UTCJun 17, 21:45 UTC40m
2026-06-17 WMA242 - Jun 17, 17:10 UTCJun 17, 17:50 UTC40m
2026-06-17 WMA2113 SAQ → FXE Jun 17, 14:50 UTCJun 17, 15:30 UTC40m
2026-06-17 WMA2112 - Jun 17, 11:00 UTCJun 17, 11:45 UTC45m
2026-06-16 WMA3226 ELH → FXE Jun 16, 21:00 UTCJun 16, 21:35 UTC35m
2026-06-16 WMA4681 - Jun 16, 16:25 UTCJun 16, 17:05 UTC40m

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 N208JH page for operator, model, and routing details .

Mode-S A1B08B frequently asked

What is Mode-S code A1B08B?
A1B08B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N208JH.
Where is Mode-S A1B08B registered?
Mode-S code A1B08B 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 A1B08B broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1B08B, octal 50330213, decimal 10,596,491.
What flights does A1B08B operate?
Mode-S A1B08B has broadcast 20 distinct callsigns, including WMA2407, WMA2404, WMA1534, WMA1533, WMA9726.