Apparatus

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sensors Mode-S transponder

A4B607

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N402WD · AIR TRACTOR AT-302/402 · operated by 402WD HOLDINGS LLC

Hex
A4B607
Octal
51133007
Decimal
10,794,503
Country
US
Tail
N402WD
Type
AT3T
No current signal · last broadcast Jul 24, 13:55 UTC
Flights observed
117
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 13:55 UTC

Last known position

Most recent position reported by Mode-S A4B607.

Country allocation

The ICAO 24-bit address A4B607 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
N402WD - 117 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N402WD - Jul 24, 12:10 UTCJul 24, 13:55 UTC1h 45m
2026-07-23 N402WD - Jul 23, 13:10 UTCJul 23, 14:20 UTC1h 10m
2026-07-22 N402WD - Jul 22, 14:15 UTCJul 22, 17:45 UTC3h 30m
2026-07-21 N402WD - Jul 21, 11:50 UTCJul 21, 12:45 UTC55m
2026-07-18 N402WD - Jul 18, 11:45 UTCJul 18, 14:30 UTC2h 45m
2026-07-17 N402WD - Jul 17, 12:04 UTCJul 17, 15:20 UTC3h 15m
2026-07-08 N402WD - Jul 8, 12:45 UTCJul 8, 16:05 UTC3h 20m
2026-07-08 N402WD - Jul 8, 11:45 UTCJul 8, 11:55 UTC10m
2026-07-06 N402WD - Jul 6, 13:50 UTCJul 6, 14:25 UTC35m
2026-06-30 N402WD - Jun 30, 13:45 UTCJun 30, 15:10 UTC1h 25m
2026-06-30 N402WD - Jun 30, 13:05 UTCJun 30, 13:15 UTC10m
2026-06-30 N402WD - Jun 30, 11:55 UTCJun 30, 12:30 UTC35m
2026-06-27 N402WD - Jun 27, 12:15 UTCJun 27, 13:20 UTC1h 5m
2026-06-26 N402WD - Jun 26, 20:00 UTCJun 26, 21:35 UTC1h 35m
2026-06-26 N402WD - Jun 26, 18:04 UTCJun 26, 18:49 UTC45m
2026-06-26 N402WD - Jun 26, 16:30 UTCJun 26, 17:25 UTC55m
2026-06-26 N402WD - Jun 26, 12:05 UTCJun 26, 14:44 UTC2h 40m
2026-06-25 N402WD - Jun 25, 22:39 UTCJun 25, 23:30 UTC50m
2026-06-25 N402WD - Jun 25, 20:49 UTCJun 25, 20:59 UTC10m
2026-06-25 N402WD - Jun 25, 19:39 UTCJun 25, 20:09 UTC30m
2026-06-25 N402WD - Jun 25, 17:05 UTCJun 25, 18:00 UTC55m
2026-06-25 N402WD - Jun 25, 15:15 UTCJun 25, 15:44 UTC30m
2026-06-25 N402WD - Jun 25, 13:29 UTCJun 25, 13:59 UTC30m
2026-06-24 N402WD - Jun 24, 21:24 UTCJun 24, 23:20 UTC1h 55m
2026-06-24 N402WD - Jun 24, 15:59 UTCJun 24, 16:14 UTC15m
2026-06-24 N402WD - Jun 24, 14:50 UTCJun 24, 15:14 UTC25m
2026-06-23 N402WD - Jun 23, 22:44 UTCJun 23, 22:55 UTC10m
2026-06-23 N402WD - Jun 23, 21:10 UTCJun 23, 22:05 UTC55m
2026-06-23 N402WD - Jun 23, 18:55 UTCJun 23, 19:50 UTC55m
2026-06-23 N402WD - Jun 23, 11:49 UTCJun 23, 13:55 UTC2h 5m
2026-06-22 N402WD - Jun 22, 18:44 UTCJun 22, 23:45 UTC5h 0m
2026-06-22 N402WD - Jun 22, 13:49 UTCJun 22, 18:04 UTC4h 15m
2026-06-21 N402WD - Jun 21, 20:29 UTCJun 21, 23:10 UTC2h 40m
2026-06-21 N402WD - Jun 21, 17:15 UTCJun 21, 19:24 UTC2h 10m
2026-06-19 N402WD - Jun 19, 16:14 UTCJun 19, 17:04 UTC50m
2026-06-19 N402WD - Jun 19, 12:49 UTCJun 19, 14:59 UTC2h 10m
2026-06-18 N402WD - Jun 18, 18:10 UTCJun 18, 23:35 UTC5h 25m
2026-06-18 N402WD - Jun 18, 15:10 UTCJun 18, 16:55 UTC1h 45m
2026-06-17 N402WD - Jun 17, 23:00 UTCJun 17, 23:50 UTC50m
2026-06-17 N402WD - Jun 17, 22:10 UTCJun 17, 22:20 UTC10m
2026-06-17 N402WD - Jun 17, 19:10 UTCJun 17, 19:20 UTC10m
2026-06-17 N402WD - Jun 17, 15:35 UTCJun 17, 16:45 UTC1h 10m
2026-06-17 N402WD - Jun 17, 14:15 UTCJun 17, 14:35 UTC20m
2026-06-17 N402WD - Jun 17, 12:30 UTCJun 17, 13:25 UTC55m
2026-06-12 N402WD - Jun 12, 11:55 UTCJun 12, 13:35 UTC1h 40m
2026-06-11 N402WD - Jun 11, 18:55 UTCJun 11, 22:50 UTC3h 55m
2026-06-11 N402WD - Jun 11, 12:00 UTCJun 11, 18:25 UTC6h 25m
2026-06-10 N402WD - Jun 10, 18:10 UTCJun 10, 23:35 UTC5h 25m
2026-06-10 N402WD - Jun 10, 12:50 UTCJun 10, 17:35 UTC4h 45m
2026-06-10 N402WD - Jun 10, 11:40 UTCJun 10, 12:20 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 N402WD page for operator, model, and routing details .

Mode-S A4B607 frequently asked

What is Mode-S code A4B607?
A4B607 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N402WD.
Where is Mode-S A4B607 registered?
Mode-S code A4B607 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 A4B607 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 13:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4B607, octal 51133007, decimal 10,794,503.
What flights does A4B607 operate?
Mode-S A4B607 has broadcast 1 distinct callsign, including N402WD.