Apparatus

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sensors Mode-S transponder

A0B56F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N145BU · AIRBUS HELICOPTERS EC-145 · operated by METRO AVIATION INC

Hex
A0B56F
Octal
50132557
Decimal
10,532,207
Country
US
Tail
N145BU
Type
EC45
No current signal · last broadcast 3d ago
Flights observed
186
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A0B56F.

Country allocation

The ICAO 24-bit address A0B56F 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
N145BU - 186 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N145BU - Jul 26, 03:20 UTCJul 26, 03:50 UTC30m
2026-07-26 N145BU - Jul 26, 02:25 UTCJul 26, 02:45 UTC20m
2026-07-24 N145BU - Jul 24, 23:45 UTCJul 25, 00:25 UTC40m
2026-07-24 N145BU - Jul 24, 22:25 UTCJul 24, 22:50 UTC25m
2026-07-24 N145BU - Jul 24, 18:35 UTCJul 24, 18:45 UTC10m
2026-07-22 N145BU - Jul 22, 22:20 UTCJul 22, 22:35 UTC15m
2026-07-22 N145BU - Jul 22, 19:50 UTCJul 22, 20:45 UTC55m
2026-07-22 N145BU - Jul 22, 18:35 UTCJul 22, 18:45 UTC10m
2026-07-21 N145BU - Jul 21, 00:30 UTCJul 21, 00:40 UTC10m
2026-07-20 N145BU - Jul 20, 17:50 UTCJul 20, 18:10 UTC20m
2026-07-16 N145BU - Jul 16, 16:40 UTCJul 16, 17:30 UTC50m
2026-07-15 N145BU - Jul 15, 16:10 UTCJul 15, 16:35 UTC25m
2026-07-15 N145BU - Jul 15, 08:05 UTCJul 15, 08:30 UTC25m
2026-07-15 N145BU - Jul 15, 06:15 UTCJul 15, 06:40 UTC25m
2026-07-15 N145BU - Jul 15, 02:55 UTCJul 15, 03:05 UTC10m
2026-07-14 N145BU - Jul 14, 21:15 UTCJul 14, 21:35 UTC20m
2026-07-07 N145BU - Jul 7, 20:45 UTCJul 7, 20:55 UTC10m
2026-07-07 N145BU - Jul 7, 15:10 UTCJul 7, 16:05 UTC55m
2026-07-07 N145BU - Jul 7, 14:20 UTCJul 7, 14:35 UTC15m
2026-07-07 N145BU - Jul 7, 12:30 UTCJul 7, 12:55 UTC25m
2026-07-07 N145BU - Jul 7, 07:35 UTCJul 7, 07:50 UTC15m
2026-07-07 N145BU - Jul 7, 06:10 UTCJul 7, 06:20 UTC10m
2026-07-07 N145BU - Jul 7, 01:10 UTCJul 7, 01:20 UTC10m
2026-07-06 N145BU - Jul 6, 23:55 UTCJul 7, 00:10 UTC15m
2026-07-06 N145BU - Jul 6, 17:15 UTCJul 6, 17:25 UTC10m
2026-07-06 N145BU - Jul 6, 15:45 UTCJul 6, 15:55 UTC10m
2026-07-05 N145BU - Jul 5, 18:25 UTCJul 5, 18:35 UTC10m
2026-07-05 N145BU - Jul 5, 17:00 UTCJul 5, 17:45 UTC45m
2026-07-05 N145BU - Jul 5, 13:50 UTCJul 5, 14:05 UTC15m
2026-07-05 N145BU - Jul 5, 13:00 UTCJul 5, 13:15 UTC15m
2026-07-05 N145BU - Jul 5, 04:10 UTCJul 5, 04:20 UTC10m
2026-07-05 N145BU - Jul 5, 03:20 UTCJul 5, 03:40 UTC20m
2026-07-04 N145BU - Jul 4, 22:15 UTCJul 4, 22:25 UTC10m
2026-07-04 N145BU - Jul 4, 20:45 UTCJul 4, 21:00 UTC15m
2026-07-04 N145BU - Jul 4, 02:35 UTCJul 4, 02:50 UTC15m
2026-07-04 N145BU - Jul 4, 01:50 UTCJul 4, 02:00 UTC10m
2026-07-03 N145BU - Jul 3, 23:25 UTCJul 3, 23:40 UTC15m
2026-07-03 N145BU - Jul 3, 21:55 UTCJul 3, 22:35 UTC40m
2026-07-02 N145BU - Jul 2, 20:40 UTCJul 2, 21:25 UTC45m
2026-07-02 N145BU - Jul 2, 00:00 UTCJul 2, 00:10 UTC10m
2026-07-01 N145BU - Jul 1, 22:50 UTCJul 1, 23:00 UTC10m
2026-07-01 N145BU - Jul 1, 16:10 UTCJul 1, 16:20 UTC10m
2026-07-01 N145BU - Jul 1, 14:55 UTCJul 1, 15:05 UTC10m
2026-06-30 N145BU - Jun 30, 15:05 UTCJun 30, 15:45 UTC40m
2026-06-30 N145BU - Jun 30, 03:30 UTCJun 30, 03:45 UTC15m
2026-06-30 N145BU - Jun 30, 02:35 UTCJun 30, 02:55 UTC20m
2026-06-29 N145BU - Jun 29, 20:59 UTCJun 29, 22:15 UTC1h 15m
2026-06-29 N145BU - Jun 29, 18:25 UTCJun 29, 18:34 UTC10m
2026-06-29 N145BU - Jun 29, 17:34 UTCJun 29, 17:49 UTC15m
2026-06-29 N145BU - Jun 29, 16:50 UTCJun 29, 16:59 UTC10m

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 N145BU page for operator, model, and routing details .

Mode-S A0B56F frequently asked

What is Mode-S code A0B56F?
A0B56F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N145BU.
Where is Mode-S A0B56F registered?
Mode-S code A0B56F 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 A0B56F broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0B56F, octal 50132557, decimal 10,532,207.
What flights does A0B56F operate?
Mode-S A0B56F has broadcast 1 distinct callsign, including N145BU.