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sensors Mode-S transponder

ABB74F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N854MH · AIRBUS HELICOPTERS EC-130 · operated by MUSTANG LEASING LLC

Hex
ABB74F
Octal
52733517
Decimal
11,253,583
Country
US
Tail
N854MH
Type
EC30
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
227
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S ABB74F.

Country allocation

The ICAO 24-bit address ABB74F 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
N854MH - 227 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N854MH - Jul 26, 20:15 UTCJul 26, 20:35 UTC20m
2026-07-26 N854MH - Jul 26, 18:15 UTCJul 26, 18:30 UTC15m
2026-07-26 N854MH - Jul 26, 14:20 UTCJul 26, 14:30 UTC10m
2026-07-25 N854MH - Jul 25, 19:45 UTCJul 25, 20:05 UTC20m
2026-07-25 N854MH - Jul 25, 15:05 UTCJul 25, 15:15 UTC10m
2026-07-24 N854MH - Jul 24, 15:55 UTCJul 24, 16:15 UTC20m
2026-07-24 N854MH - Jul 24, 13:55 UTCJul 24, 14:10 UTC15m
2026-07-24 N854MH - Jul 24, 04:00 UTCJul 24, 05:35 UTC1h 35m
2026-07-24 N854MH - Jul 24, 02:35 UTCJul 24, 03:00 UTC25m
2026-07-24 N854MH - Jul 24, 00:35 UTCJul 24, 00:55 UTC20m
2026-07-23 N854MH - Jul 23, 23:15 UTCJul 23, 23:40 UTC25m
2026-07-23 N854MH - Jul 23, 21:10 UTCJul 23, 21:30 UTC20m
2026-07-23 N854MH - Jul 23, 18:55 UTCJul 23, 19:20 UTC25m
2026-07-23 N854MH - Jul 23, 17:05 UTCJul 23, 17:20 UTC15m
2026-07-23 N854MH - Jul 23, 15:55 UTCJul 23, 16:15 UTC20m
2026-07-23 N854MH - Jul 23, 14:00 UTCJul 23, 14:15 UTC15m
2026-07-23 N854MH LAS → LAS Jul 23, 06:00 UTCJul 23, 06:10 UTC10m
2026-07-23 N854MH LAS → LAS Jul 23, 04:05 UTCJul 23, 05:45 UTC1h 40m
2026-07-23 N854MH - Jul 23, 02:55 UTCJul 23, 03:15 UTC20m
2026-07-23 N854MH - Jul 23, 00:30 UTCJul 23, 00:45 UTC15m
2026-07-22 N854MH - Jul 22, 20:10 UTCJul 22, 20:30 UTC20m
2026-07-22 N854MH - Jul 22, 18:20 UTCJul 22, 18:40 UTC20m
2026-07-22 N854MH - Jul 22, 02:50 UTCJul 22, 03:10 UTC20m
2026-07-22 N854MH - Jul 22, 00:25 UTCJul 22, 00:45 UTC20m
2026-07-21 N854MH - Jul 21, 01:45 UTCJul 21, 02:05 UTC20m
2026-07-21 N854MH - Jul 21, 00:20 UTCJul 21, 00:40 UTC20m
2026-07-20 N854MH - Jul 20, 20:05 UTCJul 20, 20:25 UTC20m
2026-07-20 N854MH - Jul 20, 18:05 UTCJul 20, 18:25 UTC20m
2026-07-20 N854MH - Jul 20, 17:05 UTCJul 20, 17:25 UTC20m
2026-07-20 N854MH - Jul 20, 15:10 UTCJul 20, 15:25 UTC15m
2026-07-15 N854MH - Jul 15, 21:10 UTCJul 15, 21:20 UTC10m
2026-07-14 N854MH - Jul 14, 18:55 UTCJul 14, 19:20 UTC25m
2026-07-14 N854MH - Jul 14, 17:00 UTCJul 14, 17:15 UTC15m
2026-07-14 N854MH - Jul 14, 15:55 UTCJul 14, 16:15 UTC20m
2026-07-14 N854MH - Jul 14, 14:00 UTCJul 14, 14:20 UTC20m
2026-07-14 N854MH - Jul 14, 02:35 UTCJul 14, 03:00 UTC25m
2026-07-14 N854MH - Jul 14, 00:40 UTCJul 14, 00:55 UTC15m
2026-07-13 N854MH - Jul 13, 20:00 UTCJul 13, 20:25 UTC25m
2026-07-13 N854MH - Jul 13, 18:05 UTCJul 13, 18:20 UTC15m
2026-07-13 N854MH - Jul 13, 05:31 UTCJul 13, 06:40 UTC1h 10m
2026-07-13 N854MH - Jul 13, 04:00 UTCJul 13, 05:05 UTC1h 5m
2026-07-12 N854MH - Jul 12, 20:20 UTCJul 12, 20:35 UTC15m
2026-07-12 N854MH - Jul 12, 18:10 UTCJul 12, 18:40 UTC30m
2026-07-12 N854MH LAS → LAS Jul 12, 02:05 UTCJul 12, 02:15 UTC10m
2026-07-11 N854MH - Jul 11, 21:10 UTCJul 11, 21:30 UTC20m
2026-07-11 N854MH - Jul 11, 19:05 UTCJul 11, 19:35 UTC30m
2026-07-11 N854MH - Jul 11, 17:55 UTCJul 11, 18:10 UTC15m
2026-07-11 N854MH - Jul 11, 16:00 UTCJul 11, 16:20 UTC20m
2026-07-10 N854MH - Jul 10, 21:35 UTCJul 10, 21:55 UTC20m
2026-07-10 N854MH - Jul 10, 17:25 UTCJul 10, 17:45 UTC20m

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 N854MH page for operator, model, and routing details .

Mode-S ABB74F frequently asked

What is Mode-S code ABB74F?
ABB74F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N854MH.
Where is Mode-S ABB74F registered?
Mode-S code ABB74F 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 ABB74F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB74F, octal 52733517, decimal 11,253,583.
What flights does ABB74F operate?
Mode-S ABB74F has broadcast 1 distinct callsign, including N854MH.