Apparatus

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sensors Mode-S transponder

A0F5CA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N161EA · operated by ELEMENTAL AVIATION LC

Hex
A0F5CA
Octal
50172712
Decimal
10,548,682
Country
US
Tail
N161EA
Type
PIAT
No current signal · last broadcast 1d ago
Flights observed
82
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A0F5CA.

Country allocation

The ICAO 24-bit address A0F5CA 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
N161EA - 82 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-16 N161EA - Jun 16, 14:05 UTCJun 16, 15:15 UTC1h 10m
2026-06-16 N161EA - Jun 16, 04:55 UTCJun 16, 05:30 UTC35m
2026-06-16 N161EA - Jun 16, 04:00 UTCJun 16, 04:15 UTC15m
2026-06-16 N161EA - Jun 16, 00:40 UTCJun 16, 02:00 UTC1h 20m
2026-06-13 N161EA - Jun 13, 20:20 UTCJun 13, 20:55 UTC35m
2026-06-13 N161EA - Jun 13, 16:45 UTCJun 13, 17:00 UTC15m
2026-06-13 N161EA - Jun 13, 15:45 UTCJun 13, 16:05 UTC20m
2026-06-13 N161EA - Jun 13, 14:15 UTCJun 13, 14:50 UTC35m
2026-06-13 N161EA - Jun 13, 12:55 UTCJun 13, 13:30 UTC35m
2026-06-13 N161EA - Jun 13, 11:50 UTCJun 13, 12:10 UTC20m
2026-06-12 N161EA - Jun 12, 04:00 UTCJun 12, 04:35 UTC35m
2026-06-12 N161EA - Jun 12, 02:45 UTCJun 12, 03:20 UTC35m
2026-06-11 N161EA - Jun 11, 17:20 UTCJun 11, 17:40 UTC20m
2026-06-11 N161EA - Jun 11, 16:10 UTCJun 11, 16:35 UTC25m
2026-06-09 N161EA - Jun 9, 21:10 UTCJun 9, 22:00 UTC50m
2026-06-09 N161EA - Jun 9, 20:00 UTCJun 9, 20:30 UTC30m
2026-06-06 N161EA - Jun 6, 19:40 UTCJun 6, 20:45 UTC1h 5m
2026-06-06 N161EA - Jun 6, 17:29 UTCJun 6, 18:59 UTC1h 30m
2026-06-04 N161EA - Jun 4, 20:15 UTCJun 4, 20:35 UTC20m
2026-06-04 N161EA - Jun 4, 18:30 UTCJun 4, 19:05 UTC35m
2026-06-03 N161EA - Jun 3, 14:55 UTCJun 3, 16:00 UTC1h 5m
2026-06-03 N161EA - Jun 3, 02:55 UTCJun 3, 04:00 UTC1h 5m
2026-06-02 N161EA - Jun 2, 15:30 UTCJun 2, 15:45 UTC15m
2026-06-02 N161EA - Jun 2, 14:25 UTCJun 2, 14:55 UTC30m
2026-06-02 N161EA - Jun 2, 03:45 UTCJun 2, 04:35 UTC50m
2026-06-02 N161EA - Jun 2, 02:35 UTCJun 2, 03:00 UTC25m
2026-06-01 N161EA - Jun 1, 15:30 UTCJun 1, 16:25 UTC55m
2026-05-31 N161EA - May 31, 17:25 UTCMay 31, 18:55 UTC1h 30m
2026-05-30 N161EA - May 30, 19:00 UTCMay 30, 20:00 UTC1h 0m
2026-05-29 N161EA - May 29, 15:10 UTCMay 29, 16:15 UTC1h 5m
2026-05-28 N161EA - May 28, 22:45 UTCMay 29, 00:25 UTC1h 40m
2026-05-28 N161EA - May 28, 20:25 UTCMay 28, 21:25 UTC1h 0m
2026-05-28 N161EA - May 28, 18:50 UTCMay 28, 19:50 UTC1h 0m
2026-05-27 N161EA - May 27, 20:00 UTCMay 27, 20:50 UTC50m
2026-05-27 N161EA - May 27, 17:50 UTCMay 27, 19:10 UTC1h 20m
2026-05-27 N161EA - May 27, 15:10 UTCMay 27, 16:00 UTC50m
2026-05-26 N161EA - May 26, 18:50 UTCMay 26, 19:05 UTC15m
2026-05-26 N161EA - May 26, 17:30 UTCMay 26, 17:50 UTC20m
2026-05-26 N161EA - May 26, 15:00 UTCMay 26, 16:00 UTC1h 0m
2026-05-26 N161EA - May 26, 13:00 UTCMay 26, 13:24 UTC25m
2026-05-25 N161EA - May 25, 23:24 UTCMay 25, 23:49 UTC25m
2026-05-25 N161EA - May 25, 19:20 UTCMay 25, 19:44 UTC25m
2026-05-25 N161EA - May 25, 15:30 UTCMay 25, 16:40 UTC1h 10m
2026-05-24 N161EA - May 24, 17:20 UTCMay 24, 19:10 UTC1h 50m
2026-05-23 N161EA - May 23, 20:40 UTCMay 23, 22:30 UTC1h 50m
2026-05-23 N161EA - May 23, 19:05 UTCMay 23, 19:45 UTC40m
2026-05-23 N161EA - May 23, 15:40 UTCMay 23, 16:40 UTC1h 0m
2026-05-23 N161EA - May 23, 00:45 UTCMay 23, 02:30 UTC1h 45m
2026-05-22 N161EA - May 22, 21:20 UTCMay 22, 22:40 UTC1h 20m
2026-05-21 N161EA - May 21, 18:25 UTCMay 21, 19:50 UTC1h 25m

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 N161EA page for operator, model, and routing details .

Mode-S A0F5CA frequently asked

What is Mode-S code A0F5CA?
A0F5CA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N161EA.
Where is Mode-S A0F5CA registered?
Mode-S code A0F5CA 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 A0F5CA 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 A0F5CA, octal 50172712, decimal 10,548,682.
What flights does A0F5CA operate?
Mode-S A0F5CA has broadcast 1 distinct callsign, including N161EA.