Apparatus

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sensors Mode-S transponder

A2F1E5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2891 · operated by SARASOTA COUNTY SHERIFFS OFFICE

Hex
A2F1E5
Octal
50570745
Decimal
10,678,757
Country
US
Tail
N2891
Type
B429
No current signal · last broadcast Jul 25, 22:45 UTC
Flights observed
132
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 22:45 UTC

Last known position

Most recent position reported by Mode-S A2F1E5.

Country allocation

The ICAO 24-bit address A2F1E5 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
N2891 - 132 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N2891 - Jul 25, 21:20 UTCJul 25, 22:45 UTC1h 25m
2026-07-22 N2891 - Jul 22, 18:20 UTCJul 22, 18:40 UTC20m
2026-07-22 N2891 - Jul 22, 15:20 UTCJul 22, 17:00 UTC1h 40m
2026-07-21 N2891 - Jul 21, 13:55 UTCJul 21, 15:25 UTC1h 30m
2026-07-21 N2891 - Jul 21, 13:00 UTCJul 21, 13:10 UTC10m
2026-07-20 N2891 - Jul 20, 11:50 UTCJul 20, 12:15 UTC25m
2026-07-20 N2891 - Jul 20, 04:05 UTCJul 20, 05:45 UTC1h 40m
2026-07-19 N2891 - Jul 19, 23:45 UTCJul 20, 01:45 UTC2h 0m
2026-07-19 N2891 - Jul 19, 03:00 UTCJul 19, 04:30 UTC1h 30m
2026-07-18 N2891 - Jul 18, 21:40 UTCJul 18, 22:00 UTC20m
2026-07-18 N2891 - Jul 18, 03:00 UTCJul 18, 04:50 UTC1h 50m
2026-07-17 N2891 - Jul 17, 23:50 UTCJul 18, 00:55 UTC1h 5m
2026-07-16 N2891 - Jul 16, 16:25 UTCJul 16, 17:10 UTC45m
2026-07-15 N2891 - Jul 15, 16:15 UTCJul 15, 17:25 UTC1h 10m
2026-07-07 N2891 - Jul 7, 17:55 UTCJul 7, 19:00 UTC1h 5m
2026-07-07 N2891 VNC → VNC Jul 7, 04:55 UTCJul 7, 06:20 UTC1h 25m
2026-07-07 N2891 - Jul 7, 01:40 UTCJul 7, 03:10 UTC1h 30m
2026-07-06 N2891 - Jul 6, 03:25 UTCJul 6, 05:20 UTC1h 55m
2026-07-05 N2891 - Jul 5, 23:30 UTCJul 6, 01:00 UTC1h 30m
2026-07-05 N2891 - Jul 5, 04:40 UTCJul 5, 05:35 UTC55m
2026-07-05 N2891 - Jul 5, 01:15 UTCJul 5, 03:10 UTC1h 55m
2026-07-04 N2891 - Jul 4, 22:50 UTCJul 4, 23:40 UTC50m
2026-07-04 N2891 VNC → VNC Jul 4, 04:25 UTCJul 4, 05:50 UTC1h 25m
2026-07-04 N2891 - Jul 4, 01:00 UTCJul 4, 02:40 UTC1h 40m
2026-07-03 N2891 - Jul 3, 00:30 UTCJul 3, 01:55 UTC1h 25m
2026-07-02 N2891 - Jul 2, 04:05 UTCJul 2, 05:10 UTC1h 5m
2026-07-02 N2891 - Jul 2, 01:30 UTCJul 2, 03:20 UTC1h 50m
2026-07-01 N2891 - Jul 1, 17:40 UTCJul 1, 18:10 UTC30m
2026-06-29 N2891 - Jun 29, 21:44 UTCJun 29, 22:15 UTC30m
2026-06-29 N2891 - Jun 29, 18:39 UTCJun 29, 20:24 UTC1h 45m
2026-06-29 N2891 - Jun 29, 13:24 UTCJun 29, 15:14 UTC1h 50m
2026-06-27 N2891 - Jun 27, 05:44 UTCJun 27, 06:30 UTC45m
2026-06-27 N2891 - Jun 27, 00:29 UTCJun 27, 02:55 UTC2h 25m
2026-06-23 N2891 - Jun 23, 19:10 UTCJun 23, 19:19 UTC10m
2026-06-23 N2891 - Jun 23, 14:29 UTCJun 23, 16:09 UTC1h 40m
2026-06-19 N2891 - Jun 19, 02:19 UTCJun 19, 04:10 UTC1h 50m
2026-06-18 N2891 - Jun 18, 18:50 UTCJun 18, 19:40 UTC50m
2026-06-18 N2891 - Jun 18, 15:40 UTCJun 18, 16:30 UTC50m
2026-06-15 N2891 - Jun 15, 18:20 UTCJun 15, 19:00 UTC40m
2026-06-15 N2891 - Jun 15, 14:05 UTCJun 15, 15:04 UTC1h 0m
2026-06-10 N2891 - Jun 10, 19:20 UTCJun 10, 19:30 UTC10m
2026-06-10 N2891 - Jun 10, 15:15 UTCJun 10, 15:55 UTC40m
2026-06-08 N2891 - Jun 8, 14:35 UTCJun 8, 16:00 UTC1h 25m
2026-06-08 N2891 - Jun 8, 13:35 UTCJun 8, 14:00 UTC25m
2026-06-07 N2891 - Jun 7, 04:55 UTCJun 7, 06:05 UTC1h 10m
2026-06-07 N2891 - Jun 7, 01:09 UTCJun 7, 03:00 UTC1h 50m
2026-06-06 N2891 - Jun 6, 20:45 UTCJun 6, 22:05 UTC1h 20m
2026-06-06 N2891 VNC → VNC Jun 6, 03:45 UTCJun 6, 05:30 UTC1h 45m
2026-06-05 N2891 - Jun 5, 04:20 UTCJun 5, 06:50 UTC2h 30m
2026-06-05 N2891 - Jun 5, 00:45 UTCJun 5, 02:20 UTC1h 35m

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 N2891 page for operator, model, and routing details .

Mode-S A2F1E5 frequently asked

What is Mode-S code A2F1E5?
A2F1E5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2891.
Where is Mode-S A2F1E5 registered?
Mode-S code A2F1E5 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 A2F1E5 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2F1E5, octal 50570745, decimal 10,678,757.
What flights does A2F1E5 operate?
Mode-S A2F1E5 has broadcast 1 distinct callsign, including N2891.