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sensors Mode-S transponder

A353B4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N313TW · AIR TRACTOR AT-504 · operated by WIEBE AERIAL APPLICATIONS LLC

Hex
A353B4
Octal
50651664
Decimal
10,703,796
Country
US
Tail
N313TW
Type
AT5T
No current signal · last broadcast 1d ago
Flights observed
125
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A353B4.

Country allocation

The ICAO 24-bit address A353B4 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
N313TW - 125 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 N313TW - Jul 16, 13:00 UTCJul 16, 14:15 UTC1h 15m
2026-07-14 N313TW - Jul 14, 23:15 UTCJul 14, 23:35 UTC20m
2026-07-11 N313TW - Jul 11, 18:55 UTCJul 11, 19:25 UTC30m
2026-07-10 N313TW - Jul 10, 23:20 UTCJul 10, 23:45 UTC25m
2026-07-10 N313TW - Jul 10, 18:00 UTCJul 10, 21:00 UTC3h 0m
2026-07-10 N313TW - Jul 10, 16:25 UTCJul 10, 17:25 UTC1h 0m
2026-07-10 N313TW EWK → EWK Jul 10, 12:50 UTCJul 10, 15:25 UTC2h 35m
2026-07-09 N313TW - Jul 9, 18:20 UTCJul 9, 19:15 UTC55m
2026-07-09 N313TW - Jul 9, 14:55 UTCJul 9, 17:45 UTC2h 50m
2026-07-09 N313TW - Jul 9, 11:55 UTCJul 9, 13:25 UTC1h 30m
2026-07-08 N313TW - Jul 8, 15:40 UTCJul 8, 16:20 UTC40m
2026-07-08 N313TW - Jul 8, 12:45 UTCJul 8, 15:00 UTC2h 15m
2026-07-08 N313TW - Jul 8, 00:40 UTCJul 8, 02:00 UTC1h 20m
2026-07-07 N313TW - Jul 7, 23:00 UTCJul 7, 23:25 UTC25m
2026-07-07 N313TW - Jul 7, 20:20 UTCJul 7, 20:50 UTC30m
2026-07-07 N313TW - Jul 7, 17:50 UTCJul 7, 18:10 UTC20m
2026-07-07 N313TW - Jul 7, 14:55 UTCJul 7, 15:20 UTC25m
2026-07-07 N313TW - Jul 7, 12:45 UTCJul 7, 14:20 UTC1h 35m
2026-07-06 N313TW - Jul 6, 23:45 UTCJul 7, 01:15 UTC1h 30m
2026-07-06 N313TW - Jul 6, 21:35 UTCJul 6, 23:10 UTC1h 35m
2026-07-06 N313TW - Jul 6, 20:15 UTCJul 6, 20:40 UTC25m
2026-07-06 N313TW - Jul 6, 18:55 UTCJul 6, 19:15 UTC20m
2026-07-06 N313TW - Jul 6, 16:30 UTCJul 6, 18:15 UTC1h 45m
2026-07-06 N313TW - Jul 6, 15:15 UTCJul 6, 15:25 UTC10m
2026-07-06 N313TW - Jul 6, 12:05 UTCJul 6, 14:40 UTC2h 35m
2026-07-05 N313TW - Jul 5, 21:20 UTCJul 6, 00:20 UTC3h 0m
2026-07-05 N313TW - Jul 5, 11:55 UTCJul 5, 19:40 UTC7h 45m
2026-07-04 N313TW - Jul 4, 19:40 UTCJul 4, 21:45 UTC2h 5m
2026-07-04 N313TW - Jul 4, 13:40 UTCJul 4, 13:50 UTC10m
2026-07-04 N313TW - Jul 4, 12:30 UTCJul 4, 12:55 UTC25m
2026-07-03 N313TW - Jul 3, 12:50 UTCJul 3, 13:10 UTC20m
2026-07-03 N313TW - Jul 3, 11:45 UTCJul 3, 11:55 UTC10m
2026-07-02 N313TW - Jul 2, 18:05 UTCJul 2, 18:15 UTC10m
2026-07-02 N313TW - Jul 2, 17:00 UTCJul 2, 17:25 UTC25m
2026-07-02 N313TW - Jul 2, 15:50 UTCJul 2, 16:00 UTC10m
2026-07-02 N313TW - Jul 2, 13:40 UTCJul 2, 14:10 UTC30m
2026-06-27 N313TW - Jun 27, 17:09 UTCJun 27, 17:20 UTC10m
2026-06-27 N313TW - Jun 27, 16:14 UTCJun 27, 16:24 UTC10m
2026-06-27 N313TW - Jun 27, 15:24 UTCJun 27, 15:39 UTC15m
2026-06-27 N313TW - Jun 27, 13:04 UTCJun 27, 14:49 UTC1h 45m
2026-06-27 N313TW - Jun 27, 01:00 UTCJun 27, 01:24 UTC25m
2026-06-26 N313TW - Jun 26, 21:55 UTCJun 26, 22:55 UTC1h 0m
2026-06-26 N313TW - Jun 26, 15:49 UTCJun 26, 21:04 UTC5h 15m
2026-06-25 N313TW - Jun 25, 21:15 UTCJun 26, 01:10 UTC3h 55m
2026-06-24 N313TW - Jun 24, 23:29 UTCJun 25, 02:14 UTC2h 45m
2026-06-24 N313TW - Jun 24, 22:29 UTCJun 24, 22:55 UTC25m
2026-06-24 N313TW - Jun 24, 21:00 UTCJun 24, 21:09 UTC10m
2026-06-24 N313TW - Jun 24, 19:00 UTCJun 24, 20:09 UTC1h 10m
2026-06-23 N313TW - Jun 23, 20:04 UTCJun 23, 20:19 UTC15m
2026-06-23 N313TW - Jun 23, 14:35 UTCJun 23, 19:24 UTC4h 50m

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 N313TW page for operator, model, and routing details .

Mode-S A353B4 frequently asked

What is Mode-S code A353B4?
A353B4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N313TW.
Where is Mode-S A353B4 registered?
Mode-S code A353B4 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 A353B4 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A353B4, octal 50651664, decimal 10,703,796.
What flights does A353B4 operate?
Mode-S A353B4 has broadcast 1 distinct callsign, including N313TW.