Apparatus

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sensors Mode-S transponder

AB186B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N814CA · operated by CHRISTIANSEN AVIATION LLC

Hex
AB186B
Octal
52614153
Decimal
11,212,907
Country
US
Tail
N814CA
Type
C172
No current signal · last broadcast 5d ago
Flights observed
144
Distinct callsigns
1
Country
US
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S AB186B.

Country allocation

The ICAO 24-bit address AB186B 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
AUB140 - 144 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 AUB140 AUO → AUO Jul 9, 01:55 UTCJul 9, 02:00 UTC5m
2026-07-08 AUB140 - Jul 8, 21:50 UTCJul 8, 22:05 UTC15m
2026-07-08 AUB140 - Jul 8, 20:25 UTCJul 8, 21:00 UTC35m
2026-07-08 AUB140 AUO → AUO Jul 8, 14:10 UTCJul 8, 17:05 UTC2h 55m
2026-07-07 AUB140 AUO → AUO Jul 7, 22:35 UTCJul 7, 23:35 UTC1h 0m
2026-07-07 AUB140 AUO → AUO Jul 7, 15:15 UTCJul 7, 16:30 UTC1h 15m
2026-07-06 AUB140 AUO → AUO Jul 6, 16:35 UTCJul 6, 18:15 UTC1h 40m
2026-07-03 AUB140 - Jul 3, 03:10 UTCJul 3, 03:30 UTC20m
2026-07-03 AUB140 - Jul 3, 02:10 UTCJul 3, 02:15 UTC5m
2026-07-02 AUB140 AUO → AUO Jul 2, 16:50 UTCJul 2, 17:55 UTC1h 5m
2026-07-01 AUB140 - Jul 1, 16:55 UTCJul 1, 17:10 UTC15m
2026-07-01 AUB140 - Jul 1, 16:00 UTCJul 1, 16:15 UTC15m
2026-06-30 AUB140 AUO → AUO Jun 30, 11:35 UTCJun 30, 12:55 UTC1h 20m
2026-06-29 AUB140 AUO → AUO Jun 29, 22:59 UTCJun 30, 00:30 UTC1h 30m
2026-06-29 AUB140 AUO → AUO Jun 29, 11:25 UTCJun 29, 12:39 UTC1h 15m
2026-06-26 AUB140 AUO → AUO Jun 26, 02:30 UTCJun 26, 02:34 UTC5m
2026-06-26 AUB140 - Jun 26, 02:14 UTCJun 26, 02:20 UTC5m
2026-06-26 AUB140 AUO → AUO Jun 26, 01:39 UTCJun 26, 02:09 UTC30m
2026-06-25 AUB140 - Jun 25, 18:45 UTCJun 25, 19:15 UTC30m
2026-06-25 AUB140 - Jun 25, 17:34 UTCJun 25, 18:04 UTC30m
2026-06-24 AUB140 AUO → AUO Jun 24, 21:00 UTCJun 24, 21:54 UTC55m
2026-06-24 AUB140 - Jun 24, 18:15 UTCJun 24, 18:34 UTC20m
2026-06-24 AUB140 - Jun 24, 17:05 UTCJun 24, 17:29 UTC25m
2026-06-24 AUB140 - Jun 24, 14:29 UTCJun 24, 14:50 UTC20m
2026-06-24 AUB140 - Jun 24, 13:34 UTCJun 24, 13:54 UTC20m
2026-06-23 AUB140 AUO → AUO Jun 23, 23:19 UTCJun 24, 00:25 UTC1h 5m
2026-06-23 AUB140 AUO → AUO Jun 23, 18:39 UTCJun 23, 19:34 UTC55m
2026-06-23 AUB140 - Jun 23, 15:30 UTCJun 23, 15:40 UTC10m
2026-06-23 AUB140 - Jun 23, 14:25 UTCJun 23, 14:39 UTC15m
2026-06-22 AUB140 AUO → AUO Jun 22, 22:05 UTCJun 22, 23:29 UTC1h 25m
2026-06-12 AUB140 AUO → AUO Jun 12, 18:50 UTCJun 12, 19:50 UTC1h 0m
2026-06-12 AUB140 - Jun 12, 14:55 UTCJun 12, 15:10 UTC15m
2026-06-12 AUB140 - Jun 12, 13:45 UTCJun 12, 14:05 UTC20m
2026-06-11 AUB140 - Jun 11, 22:25 UTCJun 11, 22:50 UTC25m
2026-06-11 AUB140 - Jun 11, 21:30 UTCJun 11, 21:50 UTC20m
2026-06-11 AUB140 AUO → AUO Jun 11, 15:55 UTCJun 11, 17:05 UTC1h 10m
2026-06-11 AUB140 AUO → AUO Jun 11, 01:40 UTCJun 11, 03:10 UTC1h 30m
2026-06-10 AUB140 AUO → AUO Jun 10, 19:55 UTCJun 10, 21:30 UTC1h 35m
2026-06-10 AUB140 - Jun 10, 14:40 UTCJun 10, 14:50 UTC10m
2026-06-10 AUB140 - Jun 10, 13:00 UTCJun 10, 13:05 UTC5m
2026-06-09 AUB140 AUO → AUO Jun 9, 13:10 UTCJun 9, 14:00 UTC50m
2026-06-09 AUB140 AUO → AUO Jun 9, 02:00 UTCJun 9, 03:25 UTC1h 25m
2026-06-08 AUB140 - Jun 8, 21:20 UTCJun 8, 21:30 UTC10m
2026-06-08 AUB140 - Jun 8, 20:10 UTCJun 8, 20:20 UTC10m
2026-06-08 AUB140 AUO → AUO Jun 8, 17:05 UTCJun 8, 18:15 UTC1h 10m
2026-06-08 AUB140 AUO → AUO Jun 8, 13:30 UTCJun 8, 15:40 UTC2h 10m
2026-06-06 AUB140 - Jun 6, 18:45 UTCJun 6, 19:10 UTC25m
2026-06-06 AUB140 - Jun 6, 17:29 UTCJun 6, 18:09 UTC40m
2026-06-06 AUB140 - Jun 6, 03:45 UTCJun 6, 04:45 UTC1h 0m
2026-06-06 AUB140 AUO → PDK Jun 6, 01:25 UTCJun 6, 03:00 UTC1h 35m

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 N814CA page for operator, model, and routing details .

Mode-S AB186B frequently asked

What is Mode-S code AB186B?
AB186B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N814CA.
Where is Mode-S AB186B registered?
Mode-S code AB186B 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 AB186B broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB186B, octal 52614153, decimal 11,212,907.
What flights does AB186B operate?
Mode-S AB186B has broadcast 1 distinct callsign, including AUB140.