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sensors Mode-S transponder

A3470B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N310CH · CESSNA 208 Caravan · operated by WATERMAKERS AIR INC

Hex
A3470B
Octal
50643413
Decimal
10,700,555
Country
US
Tail
N310CH
Type
C208
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
313
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S A3470B.

Country allocation

The ICAO 24-bit address A3470B 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
WMA881 - 35 2026-07-26
WMA882 - 24 2026-07-26
WMA516 Watermakers Air 21 2026-07-24
WMA517 Watermakers Air 15 2026-07-24
WMA676 Watermakers Air 14 2026-07-26
WMA675 Watermakers Air 14 2026-07-26
WMA242 - 14 2026-07-12
WMA1534 Watermakers Air 14 2026-07-25
WMA1533 Watermakers Air 13 2026-07-22
WMA954 Watermakers Air 12 2026-07-01
WMA634 Watermakers Air 11 2026-07-23
WMA793 Watermakers Air 10 2026-07-24
WMA2407 - 10 2026-07-18
WMA635 Watermakers Air 9 2026-07-23
WMA9949 - 7 2026-07-03
WMA9948 - 7 2026-07-02
WMA2404 - 7 2026-07-10
WMA2113 - 7 2026-07-13
WMA2112 Watermakers Air 7 2026-07-24
WMA5264 - 6 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WMA676 GHB → FXE Jul 26, 20:10 UTCJul 26, 20:50 UTC40m
2026-07-26 WMA675 FXE → TZN Jul 26, 16:55 UTCJul 26, 17:35 UTC40m
2026-07-26 WMA882 - Jul 26, 14:30 UTCJul 26, 15:10 UTC40m
2026-07-26 WMA881 - Jul 26, 10:40 UTCJul 26, 11:25 UTC45m
2026-07-25 WMA1534 GHC → FXE Jul 25, 20:55 UTCJul 25, 21:25 UTC30m
2026-07-25 WMA675 FXE → TZN Jul 25, 16:55 UTCJul 25, 17:25 UTC30m
2026-07-25 WMA882 - Jul 25, 14:30 UTCJul 25, 15:05 UTC35m
2026-07-25 WMA881 - Jul 25, 10:45 UTCJul 25, 11:25 UTC40m
2026-07-24 WMA517 TZN → FXE Jul 24, 20:55 UTCJul 24, 21:25 UTC30m
2026-07-24 WMA516 FXE → SAQ Jul 24, 17:00 UTCJul 24, 17:35 UTC35m
2026-07-24 WMA793 RSD → FXE Jul 24, 14:50 UTCJul 24, 15:35 UTC45m
2026-07-24 WMA2112 FXE → SAQ Jul 24, 10:50 UTCJul 24, 11:30 UTC40m
2026-07-23 WMA517 TZN → FXE Jul 23, 20:50 UTCJul 23, 21:25 UTC35m
2026-07-23 WMA634 FXE → SAQ Jul 23, 17:00 UTCJul 23, 17:30 UTC30m
2026-07-23 WMA635 SAQ → FXE Jul 23, 14:15 UTCJul 23, 14:45 UTC30m
2026-07-23 WMA881 - Jul 23, 10:20 UTCJul 23, 11:00 UTC40m
2026-07-22 WMA793 RSD → FXE Jul 22, 20:45 UTCJul 22, 21:25 UTC40m
2026-07-22 WMA1533 FXE → GHC Jul 22, 17:10 UTCJul 22, 17:40 UTC30m
2026-07-22 WMA882 - Jul 22, 15:40 UTCJul 22, 16:10 UTC30m
2026-07-22 WMA792 FXE → RSD Jul 22, 11:20 UTCJul 22, 11:45 UTC25m
2026-07-21 WMA3226 ELH → FXE Jul 21, 19:55 UTCJul 21, 20:25 UTC30m
2026-07-21 WMA792 FXE → RSD Jul 21, 16:25 UTCJul 21, 16:50 UTC25m
2026-07-20 WMA1534 GHC → FXE Jul 20, 20:40 UTCJul 20, 21:10 UTC30m
2026-07-20 WMA516 FXE → SAQ Jul 20, 16:40 UTCJul 20, 17:15 UTC35m
2026-07-19 WMA676 GHB → FXE Jul 19, 22:10 UTCJul 19, 22:40 UTC30m
2026-07-19 WMA1533 FXE → GHC Jul 19, 16:35 UTCJul 19, 17:10 UTC35m
2026-07-18 WMA422 - Jul 18, 21:20 UTCJul 18, 21:55 UTC35m
2026-07-18 WMA516 - Jul 18, 17:00 UTCJul 18, 17:35 UTC35m
2026-07-18 WMA2407 - Jul 18, 14:25 UTCJul 18, 15:05 UTC40m
2026-07-18 WMA7560 FXE → SAQ Jul 18, 10:30 UTCJul 18, 11:05 UTC35m
2026-07-17 WMA517 TZN → FXE Jul 17, 20:10 UTCJul 17, 20:50 UTC40m
2026-07-17 WMA881 - Jul 17, 18:00 UTCJul 17, 18:34 UTC35m
2026-07-16 WMA676 - Jul 16, 20:19 UTCJul 16, 21:05 UTC45m
2026-07-16 WMA675 - Jul 16, 16:44 UTCJul 16, 17:20 UTC35m
2026-07-16 WMA635 - Jul 16, 14:25 UTCJul 16, 15:10 UTC45m
2026-07-16 WMA881 - Jul 16, 10:59 UTCJul 16, 11:34 UTC35m
2026-07-15 WMA635 - Jul 15, 20:25 UTCJul 15, 20:55 UTC30m
2026-07-15 WMA792 - Jul 15, 17:00 UTCJul 15, 17:25 UTC25m
2026-07-14 WMA3226 - Jul 14, 21:10 UTCJul 14, 21:40 UTC30m
2026-07-14 WMA634 - Jul 14, 16:30 UTCJul 14, 17:10 UTC40m
2026-07-13 WMA1534 - Jul 13, 20:20 UTCJul 13, 20:55 UTC35m
2026-07-13 WMA516 - Jul 13, 16:45 UTCJul 13, 17:15 UTC30m
2026-07-13 WMA2113 - Jul 13, 14:35 UTCJul 13, 15:10 UTC35m
2026-07-13 WMA2112 - Jul 13, 10:35 UTCJul 13, 11:10 UTC35m
2026-07-12 WMA126 - Jul 12, 21:05 UTCJul 12, 21:35 UTC30m
2026-07-12 WMA242 - Jul 12, 16:25 UTCJul 12, 16:55 UTC30m
2026-07-12 WMA882 - Jul 12, 14:40 UTCJul 12, 15:15 UTC35m
2026-07-12 WMA1533 - Jul 12, 12:25 UTCJul 12, 12:55 UTC30m
2026-07-11 WMA676 - Jul 11, 20:35 UTCJul 11, 21:00 UTC25m
2026-07-11 WMA875 - Jul 11, 16:35 UTCJul 11, 17:10 UTC35m

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 N310CH page for operator, model, and routing details .

Mode-S A3470B frequently asked

What is Mode-S code A3470B?
A3470B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N310CH.
Where is Mode-S A3470B registered?
Mode-S code A3470B 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 A3470B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3470B, octal 50643413, decimal 10,700,555.
What flights does A3470B operate?
Mode-S A3470B has broadcast 20 distinct callsigns, including WMA881, WMA882, WMA516, WMA517, WMA676.