sensors Mode-S transponder

ABE28F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N865MT · AIRBUS HELICOPTERS EC-135/635 · operated by MED-TRANS CORP

Hex
ABE28F
Octal
52761217
Decimal
11,264,655
Country
US
Tail
N865MT
Type
EC35
No current signal · last broadcast 15h ago
Flights observed
9
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S ABE28F.

Country allocation

The ICAO 24-bit address ABE28F 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
N865MT - 9 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 N865MT - Apr 14, 08:50 UTCApr 14, 09:05 UTC15m
2026-04-14 N865MT - Apr 14, 07:30 UTCApr 14, 07:45 UTC15m
2026-04-14 N865MT - Apr 14, 06:00 UTCApr 14, 06:10 UTC10m
2026-04-13 N865MT - Apr 13, 23:10 UTCApr 13, 23:25 UTC15m
2026-04-13 N865MT - Apr 13, 21:05 UTCApr 13, 22:10 UTC1h 5m
2026-04-13 N865MT - Apr 13, 20:00 UTCApr 13, 20:10 UTC10m
2026-04-13 N865MT - Apr 13, 18:50 UTCApr 13, 20:10 UTC1h 20m
2026-04-13 N865MT - Apr 13, 17:45 UTCApr 13, 18:00 UTC15m
2026-04-13 N865MT - Apr 13, 16:35 UTCApr 13, 16:50 UTC15m

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 N865MT page for operator, model, and routing details .

Mode-S ABE28F frequently asked

What is Mode-S code ABE28F?
ABE28F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N865MT.
Where is Mode-S ABE28F registered?
Mode-S code ABE28F 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 ABE28F broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE28F, octal 52761217, decimal 11,264,655.
What flights does ABE28F operate?
Mode-S ABE28F has broadcast 1 distinct callsign, including N865MT.