Apparatus

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sensors Mode-S transponder

AC2549

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N882AF · PILATUS PC-12 · operated by CSW AVIATION LLC, CONEXON LLC, TRINITY CAPITAL ADVISORS LLC, ARKADIOS WEALTH ADVISORS LLC, BG TRANSPORTATION LLC, BENAJMIN PATRIDGE CO LLC

Hex
AC2549
Octal
53022511
Decimal
11,281,737
Country
US
Tail
N882AF
Type
PC12
No current signal · last broadcast 8h ago
Flights observed
222
Distinct callsigns
20
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S AC2549.

Country allocation

The ICAO 24-bit address AC2549 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 20 distinct

Callsign Airline Flights Last seen
CNS801 - 33 2026-05-24
CNS298 - 31 2026-06-01
CNS1824 - 22 2026-06-16
N882AF - 14 2026-07-17
CNS1833 - 14 2026-06-17
CNS402 - 13 2026-06-08
CNS143 - 13 2026-04-28
CNS602 - 12 2026-07-06
CNS505 - 11 2026-05-14
CNS423 - 10 2026-07-02
CNS3681 - 6 2026-06-18
CNS724 - 5 2026-05-05
CNS5289 - 5 2026-07-15
CNS444 - 5 2026-06-10
CNS310 - 5 2026-04-19
CNS123 - 5 2026-04-17
CNS1919 - 4 2026-04-16
CNS1241 - 4 2026-07-17
CNS901 - 3 2026-05-15
CNS555 - 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CNS1241 - Jul 17, 21:30 UTCJul 17, 23:00 UTC1h 30m
2026-07-17 CNS1241 - Jul 17, 18:40 UTCJul 17, 18:50 UTC10m
2026-07-17 CNS1241 - Jul 17, 16:40 UTCJul 17, 17:25 UTC45m
2026-07-17 N882AF - Jul 17, 14:50 UTCJul 17, 15:35 UTC45m
2026-07-17 N882AF - Jul 17, 12:50 UTCJul 17, 13:50 UTC1h 0m
2026-07-16 CNS1241 - Jul 16, 18:19 UTCJul 16, 19:45 UTC1h 25m
2026-07-15 CNS5289 - Jul 15, 15:05 UTCJul 15, 16:20 UTC1h 15m
2026-07-15 CNS5289 - Jul 15, 12:05 UTCJul 15, 13:25 UTC1h 20m
2026-07-14 CNS5289 - Jul 14, 20:55 UTCJul 14, 22:35 UTC1h 40m
2026-07-14 CNS5289 - Jul 14, 19:55 UTCJul 14, 20:10 UTC15m
2026-07-14 CNS5289 - Jul 14, 18:45 UTCJul 14, 19:20 UTC35m
2026-07-06 CNS602 - Jul 6, 22:00 UTCJul 7, 02:50 UTC4h 50m
2026-07-06 CNS602 - Jul 6, 19:25 UTCJul 6, 20:40 UTC1h 15m
2026-07-06 CNS602 - Jul 6, 16:05 UTCJul 6, 18:25 UTC2h 20m
2026-07-05 CNS602 BLM → RDU Jul 5, 23:35 UTCJul 6, 01:10 UTC1h 35m
2026-07-05 CNS602 - Jul 5, 22:40 UTCJul 5, 23:00 UTC20m
2026-07-05 CNS602 - Jul 5, 19:45 UTCJul 5, 20:45 UTC1h 0m
2026-07-05 CNS602 - Jul 5, 16:35 UTCJul 5, 18:05 UTC1h 30m
2026-07-05 CNS602 - Jul 5, 13:45 UTCJul 5, 15:40 UTC1h 55m
2026-07-04 CNS602 - Jul 4, 17:35 UTCJul 4, 18:10 UTC35m
2026-07-04 CNS602 BED → MVY Jul 4, 15:55 UTCJul 4, 16:20 UTC25m
2026-07-03 CNS602 - Jul 3, 14:40 UTCJul 3, 15:15 UTC35m
2026-07-03 CNS602 - Jul 3, 13:10 UTCJul 3, 13:40 UTC30m
2026-07-02 CNS423 - Jul 2, 19:55 UTCJul 2, 20:05 UTC10m
2026-07-02 CNS423 - Jul 2, 18:30 UTCJul 2, 19:05 UTC35m
2026-07-02 CNS423 - Jul 2, 17:10 UTCJul 2, 17:45 UTC35m
2026-07-02 CNS423 - Jul 2, 14:10 UTCJul 2, 15:35 UTC1h 25m
2026-07-02 CNS423 ACK → MNZ Jul 2, 11:25 UTCJul 2, 13:10 UTC1h 45m
2026-07-01 CNS423 - Jul 1, 20:45 UTCJul 1, 21:45 UTC1h 0m
2026-07-01 CNS423 - Jul 1, 17:45 UTCJul 1, 18:35 UTC50m
2026-07-01 CNS423 - Jul 1, 16:15 UTCJul 1, 17:05 UTC50m
2026-07-01 CNS423 - Jul 1, 13:25 UTCJul 1, 15:25 UTC2h 0m
2026-07-01 CNS423 - Jul 1, 11:25 UTCJul 1, 12:10 UTC45m
2026-06-30 N882AF - Jun 30, 18:30 UTCJun 30, 19:50 UTC1h 20m
2026-06-19 N882AF - Jun 19, 11:24 UTCJun 19, 12:49 UTC1h 25m
2026-06-18 CNS3681 - Jun 18, 19:15 UTCJun 18, 19:50 UTC35m
2026-06-18 CNS3681 - Jun 18, 17:25 UTCJun 18, 18:15 UTC50m
2026-06-18 CNS3681 - Jun 18, 15:45 UTCJun 18, 16:25 UTC40m
2026-06-18 CNS3681 - Jun 18, 14:10 UTCJun 18, 15:00 UTC50m
2026-06-18 CNS3681 - Jun 18, 12:25 UTCJun 18, 13:20 UTC55m
2026-06-18 CNS3681 - Jun 18, 11:20 UTCJun 18, 11:40 UTC20m
2026-06-17 CNS1833 - Jun 17, 17:00 UTCJun 17, 17:25 UTC25m
2026-06-17 CNS1833 - Jun 17, 15:10 UTCJun 17, 16:15 UTC1h 5m
2026-06-17 CNS1833 - Jun 17, 13:30 UTCJun 17, 14:25 UTC55m
2026-06-17 CNS1833 BED → BDR Jun 17, 12:20 UTCJun 17, 12:55 UTC35m
2026-06-16 CNS1824 - Jun 16, 18:50 UTCJun 16, 19:00 UTC10m
2026-06-16 CNS1824 - Jun 16, 15:35 UTCJun 16, 18:05 UTC2h 30m
2026-06-16 CNS1824 - Jun 16, 13:34 UTCJun 16, 15:00 UTC1h 25m
2026-06-15 CNS1824 - Jun 15, 21:14 UTCJun 15, 23:50 UTC2h 35m
2026-06-15 CNS1824 - Jun 15, 19:45 UTCJun 15, 20:25 UTC40m

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 N882AF page for operator, model, and routing details .

Mode-S AC2549 frequently asked

What is Mode-S code AC2549?
AC2549 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N882AF.
Where is Mode-S AC2549 registered?
Mode-S code AC2549 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 AC2549 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC2549, octal 53022511, decimal 11,281,737.
What flights does AC2549 operate?
Mode-S AC2549 has broadcast 20 distinct callsigns, including CNS801, CNS298, CNS1824, N882AF, CNS1833.