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sensors Mode-S transponder

ABDB2B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N863NC · AIRBUS HELICOPTERS EC-135/635 · operated by AIR METHODS LLC

Hex
ABDB2B
Octal
52755453
Decimal
11,262,763
Country
US
Tail
N863NC
Type
EC35
No current signal · last broadcast Jul 25, 22:55 UTC
Flights observed
58
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 22:55 UTC

Last known position

Most recent position reported by Mode-S ABDB2B.

Country allocation

The ICAO 24-bit address ABDB2B 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
N863NC - 58 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N863NC - Jul 25, 22:40 UTCJul 25, 22:55 UTC15m
2026-07-24 N863NC - Jul 24, 19:40 UTCJul 24, 19:50 UTC10m
2026-07-21 N863NC - Jul 21, 20:50 UTCJul 21, 21:35 UTC45m
2026-07-20 N863NC - Jul 20, 23:45 UTCJul 20, 23:55 UTC10m
2026-07-20 N863NC - Jul 20, 22:55 UTCJul 20, 23:10 UTC15m
2026-07-17 N863NC - Jul 17, 04:49 UTCJul 17, 05:04 UTC15m
2026-07-16 N863NC - Jul 16, 21:05 UTCJul 16, 22:10 UTC1h 5m
2026-07-16 N863NC - Jul 16, 18:05 UTCJul 16, 18:19 UTC15m
2026-07-14 N863NC - Jul 14, 11:55 UTCJul 14, 12:40 UTC45m
2026-07-13 N863NC - Jul 13, 23:55 UTCJul 14, 00:15 UTC20m
2026-07-13 N863NC - Jul 13, 21:55 UTCJul 13, 22:10 UTC15m
2026-07-12 N863NC - Jul 12, 01:45 UTCJul 12, 02:30 UTC45m
2026-07-11 N863NC - Jul 11, 23:35 UTCJul 11, 23:45 UTC10m
2026-07-11 N863NC - Jul 11, 22:35 UTCJul 11, 22:45 UTC10m
2026-07-10 N863NC - Jul 10, 18:10 UTCJul 10, 19:05 UTC55m
2026-07-10 N863NC - Jul 10, 13:20 UTCJul 10, 14:10 UTC50m
2026-07-08 N863NC - Jul 8, 22:25 UTCJul 8, 23:10 UTC45m
2026-07-07 N863NC - Jul 7, 21:05 UTCJul 7, 21:50 UTC45m
2026-07-06 N863NC - Jul 6, 02:00 UTCJul 6, 02:40 UTC40m
2026-06-24 N863NC - Jun 24, 03:24 UTCJun 24, 03:35 UTC10m
2026-06-24 N863NC - Jun 24, 01:55 UTCJun 24, 02:15 UTC20m
2026-06-23 N863NC - Jun 23, 19:00 UTCJun 23, 20:04 UTC1h 5m
2026-06-21 N863NC - Jun 21, 23:40 UTCJun 22, 00:14 UTC35m
2026-06-20 N863NC - Jun 20, 23:34 UTCJun 21, 00:14 UTC40m
2026-06-11 N863NC - Jun 11, 02:10 UTCJun 11, 02:25 UTC15m
2026-06-10 N863NC - Jun 10, 23:50 UTCJun 11, 00:20 UTC30m
2026-06-10 N863NC - Jun 10, 21:15 UTCJun 10, 21:35 UTC20m
2026-06-10 N863NC - Jun 10, 19:55 UTCJun 10, 20:10 UTC15m
2026-06-10 N863NC - Jun 10, 19:15 UTCJun 10, 19:25 UTC10m
2026-06-08 N863NC - Jun 8, 16:55 UTCJun 8, 17:25 UTC30m
2026-06-08 N863NC - Jun 8, 04:20 UTCJun 8, 04:30 UTC10m
2026-06-08 N863NC - Jun 8, 03:25 UTCJun 8, 03:45 UTC20m
2026-06-07 N863NC - Jun 7, 04:10 UTCJun 7, 04:20 UTC10m
2026-06-07 N863NC - Jun 7, 03:00 UTCJun 7, 03:10 UTC10m
2026-06-06 N863NC - Jun 6, 21:50 UTCJun 6, 22:44 UTC55m
2026-06-06 N863NC - Jun 6, 00:25 UTCJun 6, 00:35 UTC10m
2026-06-05 N863NC - Jun 5, 20:30 UTCJun 5, 21:00 UTC30m
2026-05-29 N863NC - May 29, 16:20 UTCMay 29, 16:30 UTC10m
2026-05-29 N863NC - May 29, 15:20 UTCMay 29, 15:40 UTC20m
2026-05-29 N863NC - May 29, 08:15 UTCMay 29, 08:35 UTC20m
2026-05-29 N863NC - May 29, 03:00 UTCMay 29, 03:55 UTC55m
2026-05-28 N863NC - May 28, 19:35 UTCMay 28, 20:55 UTC1h 20m
2026-05-28 N863NC - May 28, 18:00 UTCMay 28, 18:15 UTC15m
2026-05-28 N863NC - May 28, 05:30 UTCMay 28, 05:45 UTC15m
2026-05-28 N863NC - May 28, 03:20 UTCMay 28, 03:50 UTC30m
2026-05-23 N863NC - May 23, 23:30 UTCMay 23, 23:45 UTC15m
2026-05-23 N863NC - May 23, 13:05 UTCMay 23, 13:15 UTC10m
2026-05-23 N863NC - May 23, 12:15 UTCMay 23, 12:30 UTC15m
2026-05-20 N863NC - May 20, 22:55 UTCMay 20, 23:05 UTC10m
2026-05-20 N863NC - May 20, 17:45 UTCMay 20, 17:55 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 N863NC page for operator, model, and routing details .

Mode-S ABDB2B frequently asked

What is Mode-S code ABDB2B?
ABDB2B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N863NC.
Where is Mode-S ABDB2B registered?
Mode-S code ABDB2B 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 ABDB2B broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 22:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDB2B, octal 52755453, decimal 11,262,763.
What flights does ABDB2B operate?
Mode-S ABDB2B has broadcast 1 distinct callsign, including N863NC.