Apparatus

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sensors Mode-S transponder

A81E2A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N622FB · AEROSPATIALE AS-350 Ecureuil · operated by CITY OF PHOENIX, POLICE AIR SUPPORT UNIT

Hex
A81E2A
Octal
52017052
Decimal
11,017,770
Country
US
Tail
N622FB
Type
AS50
No current signal · last broadcast 9h ago
Flights observed
61
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A81E2A.

Country allocation

The ICAO 24-bit address A81E2A 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
N622FB - 61 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N622FB DVT → DVT May 29, 20:20 UTCMay 29, 20:35 UTC15m
2026-05-07 N622FB - May 7, 18:15 UTCMay 7, 20:20 UTC2h 5m
2026-05-06 N622FB DVT → DVT May 6, 18:35 UTCMay 6, 19:40 UTC1h 5m
2026-05-05 N622FB - May 5, 18:30 UTCMay 5, 19:55 UTC1h 25m
2026-05-05 N622FB - May 5, 16:06 UTCMay 5, 16:25 UTC20m
2026-05-03 N622FB - May 3, 18:25 UTCMay 3, 19:20 UTC55m
2026-05-02 N622FB - May 2, 18:10 UTCMay 2, 18:55 UTC45m
2026-04-30 N622FB DVT → DVT Apr 30, 06:30 UTCApr 30, 07:55 UTC1h 25m
2026-04-30 N622FB - Apr 30, 03:35 UTCApr 30, 05:15 UTC1h 40m
2026-04-29 N622FB - Apr 29, 21:35 UTCApr 29, 22:05 UTC30m
2026-04-28 N622FB - Apr 28, 18:40 UTCApr 28, 19:40 UTC1h 0m
2026-04-28 N622FB DVT → DVT Apr 28, 15:35 UTCApr 28, 16:55 UTC1h 20m
2026-04-27 N622FB - Apr 27, 18:00 UTCApr 27, 19:00 UTC1h 0m
2026-04-27 N622FB DVT → DVT Apr 27, 15:35 UTCApr 27, 16:40 UTC1h 5m
2026-04-27 N622FB - Apr 27, 06:35 UTCApr 27, 08:05 UTC1h 30m
2026-04-27 N622FB - Apr 27, 03:35 UTCApr 27, 05:05 UTC1h 30m
2026-04-26 N622FB - Apr 26, 08:05 UTCApr 26, 10:35 UTC2h 30m
2026-04-26 N622FB - Apr 26, 05:05 UTCApr 26, 07:00 UTC1h 55m
2026-04-24 N622FB - Apr 24, 18:00 UTCApr 24, 18:55 UTC55m
2026-04-24 N622FB - Apr 24, 15:35 UTCApr 24, 16:00 UTC25m
2026-04-24 N622FB - Apr 24, 10:30 UTCApr 24, 11:40 UTC1h 10m
2026-04-24 N622FB DVT → DVT Apr 24, 08:00 UTCApr 24, 09:30 UTC1h 30m
2026-04-24 N622FB - Apr 24, 05:05 UTCApr 24, 06:45 UTC1h 40m
2026-04-24 N622FB DVT → DVT Apr 24, 02:05 UTCApr 24, 03:40 UTC1h 35m
2026-04-23 N622FB - Apr 23, 23:00 UTCApr 24, 00:50 UTC1h 50m
2026-04-23 N622FB DVT → DVT Apr 23, 06:35 UTCApr 23, 08:05 UTC1h 30m
2026-04-23 N622FB - Apr 23, 03:35 UTCApr 23, 05:05 UTC1h 30m
2026-04-21 N622FB - Apr 21, 18:05 UTCApr 21, 19:20 UTC1h 15m
2026-04-21 N622FB - Apr 21, 15:35 UTCApr 21, 16:31 UTC55m
2026-04-21 N622FB DVT → DVT Apr 21, 06:35 UTCApr 21, 08:10 UTC1h 35m
2026-04-21 N622FB - Apr 21, 03:35 UTCApr 21, 05:10 UTC1h 35m
2026-04-19 N622FB DVT → DVT Apr 19, 18:30 UTCApr 19, 19:30 UTC1h 0m
2026-04-19 N622FB DVT → DVT Apr 19, 13:40 UTCApr 19, 14:40 UTC1h 0m
2026-04-18 N622FB - Apr 18, 15:40 UTCApr 18, 17:05 UTC1h 25m
2026-04-18 N622FB - Apr 18, 13:10 UTCApr 18, 14:10 UTC1h 0m
2026-04-18 N622FB - Apr 18, 12:55 UTCApr 18, 13:05 UTC10m
2026-04-17 N622FB - Apr 17, 19:25 UTCApr 17, 19:35 UTC10m
2026-04-17 N622FB - Apr 17, 18:40 UTCApr 17, 19:20 UTC40m
2026-04-17 N622FB - Apr 17, 17:00 UTCApr 17, 17:15 UTC15m
2026-04-17 N622FB - Apr 17, 15:20 UTCApr 17, 15:50 UTC30m
2026-04-17 N622FB - Apr 17, 07:20 UTCApr 17, 08:10 UTC50m
2026-04-17 N622FB - Apr 17, 06:30 UTCApr 17, 07:15 UTC45m
2026-04-17 N622FB DVT → DVT Apr 17, 04:05 UTCApr 17, 05:10 UTC1h 6m
2026-04-17 N622FB - Apr 17, 03:25 UTCApr 17, 03:40 UTC15m
2026-04-17 N622FB - Apr 17, 02:45 UTCApr 17, 03:15 UTC30m
2026-04-16 N622FB - Apr 16, 15:40 UTCApr 16, 16:50 UTC1h 10m
2026-04-16 N622FB - Apr 16, 07:15 UTCApr 16, 08:19 UTC1h 5m
2026-04-16 N622FB - Apr 16, 06:29 UTCApr 16, 06:45 UTC15m
2026-04-15 N622FB - Apr 15, 19:05 UTCApr 15, 19:55 UTC50m
2026-04-15 N622FB - Apr 15, 18:35 UTCApr 15, 19:00 UTC25m

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 N622FB page for operator, model, and routing details .

Mode-S A81E2A frequently asked

What is Mode-S code A81E2A?
A81E2A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N622FB.
Where is Mode-S A81E2A registered?
Mode-S code A81E2A 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 A81E2A broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A81E2A, octal 52017052, decimal 11,017,770.
What flights does A81E2A operate?
Mode-S A81E2A has broadcast 1 distinct callsign, including N622FB.