Apparatus

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sensors Mode-S transponder

A19020

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N20ET · SOCATA Tobago · operated by CLEAR SKIES AVIONICS INC

Hex
A19020
Octal
50310040
Decimal
10,588,192
Country
US
Tail
N20ET
Type
TOBA
No current signal · last broadcast 4d ago
Flights observed
71
Distinct callsigns
1
Country
US
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S A19020.

Country allocation

The ICAO 24-bit address A19020 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
N20ET - 71 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 N20ET PIE → PIE Jul 9, 13:25 UTCJul 9, 14:20 UTC55m
2026-07-08 N20ET - Jul 8, 18:10 UTCJul 8, 18:20 UTC10m
2026-07-08 N20ET - Jul 8, 15:50 UTCJul 8, 17:10 UTC1h 20m
2026-07-07 N20ET - Jul 7, 11:45 UTCJul 7, 12:25 UTC40m
2026-07-03 N20ET - Jul 3, 13:45 UTCJul 3, 15:05 UTC1h 20m
2026-07-03 N20ET - Jul 3, 11:40 UTCJul 3, 12:30 UTC50m
2026-07-02 N20ET PIE → PIE Jul 2, 17:35 UTCJul 2, 18:20 UTC45m
2026-07-02 N20ET - Jul 2, 13:40 UTCJul 2, 14:40 UTC1h 0m
2026-07-02 N20ET - Jul 2, 12:00 UTCJul 2, 12:50 UTC50m
2026-06-29 N20ET PIE → PIE Jun 29, 13:34 UTCJun 29, 14:34 UTC1h 0m
2026-06-26 N20ET - Jun 26, 13:49 UTCJun 26, 15:20 UTC1h 30m
2026-06-25 N20ET - Jun 25, 15:20 UTCJun 25, 15:59 UTC40m
2026-06-24 N20ET - Jun 24, 15:35 UTCJun 24, 16:45 UTC1h 10m
2026-06-23 N20ET - Jun 23, 15:19 UTCJun 23, 17:15 UTC1h 55m
2026-06-12 N20ET - Jun 12, 14:01 UTCJun 12, 14:55 UTC55m
2026-06-11 N20ET - Jun 11, 15:05 UTCJun 11, 15:40 UTC35m
2026-06-10 N20ET - Jun 10, 13:20 UTCJun 10, 14:55 UTC1h 35m
2026-06-09 N20ET PIE → PIE Jun 9, 11:50 UTCJun 9, 12:20 UTC30m
2026-06-07 N20ET PIE → PIE Jun 7, 16:15 UTCJun 7, 16:55 UTC40m
2026-06-06 N20ET - Jun 6, 21:04 UTCJun 6, 21:40 UTC35m
2026-06-06 N20ET - Jun 6, 17:34 UTCJun 6, 18:14 UTC40m
2026-06-02 N20ET PIE → PIE Jun 2, 13:05 UTCJun 2, 14:30 UTC1h 25m
2026-05-31 N20ET - May 31, 11:50 UTCMay 31, 12:10 UTC20m
2026-05-30 N20ET - May 30, 20:30 UTCMay 30, 21:15 UTC45m
2026-05-29 N20ET PIE → PIE May 29, 11:35 UTCMay 29, 12:40 UTC1h 5m
2026-05-28 N20ET - May 28, 13:50 UTCMay 28, 14:30 UTC40m
2026-05-27 N20ET PIE → PIE May 27, 13:25 UTCMay 27, 14:50 UTC1h 25m
2026-05-26 N20ET - May 26, 11:39 UTCMay 26, 13:00 UTC1h 20m
2026-05-24 N20ET PIE → PIE May 24, 13:45 UTCMay 24, 14:10 UTC25m
2026-05-23 N20ET PIE → PIE May 23, 11:40 UTCMay 23, 13:35 UTC1h 55m
2026-05-22 N20ET - May 22, 18:45 UTCMay 22, 19:20 UTC35m
2026-05-22 N20ET - May 22, 11:40 UTCMay 22, 13:00 UTC1h 20m
2026-05-19 N20ET CLW → PIE May 19, 11:50 UTCMay 19, 13:20 UTC1h 30m
2026-05-18 N20ET - May 18, 15:50 UTCMay 18, 16:35 UTC45m
2026-05-18 N20ET PIE → PIE May 18, 11:30 UTCMay 18, 13:00 UTC1h 30m
2026-05-17 N20ET PIE → PIE May 17, 16:10 UTCMay 17, 16:30 UTC20m
2026-05-16 N20ET - May 16, 11:46 UTCMay 16, 13:35 UTC1h 50m
2026-05-14 N20ET - May 14, 12:00 UTCMay 14, 13:25 UTC1h 25m
2026-05-12 N20ET - May 12, 11:40 UTCMay 12, 13:30 UTC1h 50m
2026-05-11 N20ET - May 11, 16:20 UTCMay 11, 16:55 UTC35m
2026-05-11 N20ET PIE → PIE May 11, 11:30 UTCMay 11, 13:00 UTC1h 30m
2026-05-09 N20ET - May 9, 16:15 UTCMay 9, 16:35 UTC20m
2026-05-09 N20ET - May 9, 14:05 UTCMay 9, 14:55 UTC50m
2026-05-07 N20ET - May 7, 15:40 UTCMay 7, 16:20 UTC40m
2026-05-06 N20ET - May 6, 13:45 UTCMay 6, 14:30 UTC45m
2026-05-05 N20ET - May 5, 21:35 UTCMay 5, 22:15 UTC40m
2026-05-05 N20ET - May 5, 13:40 UTCMay 5, 14:00 UTC20m
2026-05-05 N20ET PIE → PIE May 5, 01:00 UTCMay 5, 01:40 UTC40m
2026-05-01 N20ET - May 1, 15:35 UTCMay 1, 16:20 UTC45m
2026-04-30 N20ET PIE → PIE Apr 30, 13:15 UTCApr 30, 13:55 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 N20ET page for operator, model, and routing details .

Mode-S A19020 frequently asked

What is Mode-S code A19020?
A19020 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N20ET.
Where is Mode-S A19020 registered?
Mode-S code A19020 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 A19020 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A19020, octal 50310040, decimal 10,588,192.
What flights does A19020 operate?
Mode-S A19020 has broadcast 1 distinct callsign, including N20ET.