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sensors Mode-S transponder

ADCC34

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9887L · CESSNA 172 Skyhawk · operated by SKYWARRIOR FLIGHT TRAINING INC

Hex
ADCC34
Octal
53346064
Decimal
11,390,004
Country
US
Tail
N9887L
Type
C172
No current signal · last broadcast Jul 23, 18:20 UTC
Flights observed
118
Distinct callsigns
2
Country
US
Last broadcast
Jul 23, 18:20 UTC

Last known position

Most recent position reported by Mode-S ADCC34.

Country allocation

The ICAO 24-bit address ADCC34 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 2 distinct

Callsign Airline Flights Last seen
BL87L - 115 2026-07-23
N9887L - 2 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 BL87L - Jul 23, 17:45 UTCJul 23, 18:20 UTC35m
2026-07-23 BL87L - Jul 23, 12:35 UTCJul 23, 13:10 UTC35m
2026-07-20 BL87L - Jul 20, 19:15 UTCJul 20, 19:45 UTC30m
2026-07-20 BL87L - Jul 20, 18:15 UTCJul 20, 18:35 UTC20m
2026-07-20 BL87L - Jul 20, 15:15 UTCJul 20, 16:10 UTC55m
2026-07-20 BL87L - Jul 20, 12:30 UTCJul 20, 12:50 UTC20m
2026-07-16 BL87L - Jul 16, 19:14 UTCJul 16, 20:00 UTC45m
2026-07-15 BL87L - Jul 15, 18:10 UTCJul 15, 18:20 UTC10m
2026-07-15 BL87L - Jul 15, 16:50 UTCJul 15, 17:25 UTC35m
2026-07-15 BL87L - Jul 15, 14:55 UTCJul 15, 15:25 UTC30m
2026-07-15 BL87L - Jul 15, 12:25 UTCJul 15, 12:45 UTC20m
2026-07-14 BL87L PNS → PNS Jul 14, 13:45 UTCJul 14, 15:05 UTC1h 20m
2026-07-11 BL87L - Jul 11, 17:25 UTCJul 11, 17:50 UTC25m
2026-07-11 BL87L - Jul 11, 15:40 UTCJul 11, 16:00 UTC20m
2026-07-11 BL87L - Jul 11, 14:05 UTCJul 11, 14:40 UTC35m
2026-07-10 BL87L - Jul 10, 15:25 UTCJul 10, 16:40 UTC1h 15m
2026-07-10 BL87L - Jul 10, 14:35 UTCJul 10, 14:50 UTC15m
2026-07-09 BL87L - Jul 9, 20:25 UTCJul 9, 21:00 UTC35m
2026-07-09 BL87L - Jul 9, 18:20 UTCJul 9, 18:35 UTC15m
2026-07-09 BL87L - Jul 9, 15:05 UTCJul 9, 15:50 UTC45m
2026-07-08 BL87L - Jul 8, 20:55 UTCJul 8, 21:50 UTC55m
2026-07-08 BL87L - Jul 8, 18:35 UTCJul 8, 20:00 UTC1h 25m
2026-07-01 BL87L - Jul 1, 21:00 UTCJul 1, 21:50 UTC50m
2026-07-01 BL87L - Jul 1, 19:45 UTCJul 1, 20:00 UTC15m
2026-07-01 BL87L - Jul 1, 17:20 UTCJul 1, 17:35 UTC15m
2026-07-01 BL87L - Jul 1, 14:40 UTCJul 1, 15:05 UTC25m
2026-07-01 BL87L - Jul 1, 13:35 UTCJul 1, 13:45 UTC10m
2026-06-30 BL87L - Jun 30, 16:55 UTCJun 30, 17:20 UTC25m
2026-06-30 BL87L - Jun 30, 13:20 UTCJun 30, 13:35 UTC15m
2026-06-29 BL87L - Jun 29, 18:34 UTCJun 29, 19:05 UTC30m
2026-06-29 BL87L - Jun 29, 15:19 UTCJun 29, 15:45 UTC25m
2026-06-26 BL87L - Jun 26, 20:59 UTCJun 26, 21:10 UTC10m
2026-06-26 BL87L - Jun 26, 19:30 UTCJun 26, 20:24 UTC55m
2026-06-26 BL87L - Jun 26, 16:49 UTCJun 26, 17:04 UTC15m
2026-06-26 BL87L - Jun 26, 15:39 UTCJun 26, 16:05 UTC25m
2026-06-26 BL87L - Jun 26, 14:35 UTCJun 26, 14:55 UTC20m
2026-06-26 N9887L - Jun 26, 13:15 UTCJun 26, 13:59 UTC45m
2026-06-26 N9887L - Jun 26, 00:15 UTCJun 26, 00:24 UTC10m
2026-06-11 BL87L - Jun 11, 20:25 UTCJun 11, 22:05 UTC1h 40m
2026-06-11 BL87L - Jun 11, 18:20 UTCJun 11, 18:35 UTC15m
2026-06-11 BL87L - Jun 11, 16:30 UTCJun 11, 16:45 UTC15m
2026-06-11 BL87L - Jun 11, 14:55 UTCJun 11, 15:35 UTC40m
2026-06-10 BL87L - Jun 10, 21:30 UTCJun 10, 21:40 UTC10m
2026-06-10 BL87L - Jun 10, 20:35 UTCJun 10, 20:50 UTC15m
2026-06-10 BL87L - Jun 10, 18:05 UTCJun 10, 18:20 UTC15m
2026-06-10 BL87L - Jun 10, 12:25 UTCJun 10, 12:35 UTC10m
2026-06-09 BL87L - Jun 9, 21:15 UTCJun 9, 21:45 UTC30m
2026-06-09 BL87L - Jun 9, 18:25 UTCJun 9, 18:40 UTC15m
2026-06-09 BL87L - Jun 9, 15:35 UTCJun 9, 15:45 UTC10m
2026-06-09 BL87L - Jun 9, 13:55 UTCJun 9, 14:05 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 N9887L page for operator, model, and routing details .

Mode-S ADCC34 frequently asked

What is Mode-S code ADCC34?
ADCC34 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9887L.
Where is Mode-S ADCC34 registered?
Mode-S code ADCC34 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 ADCC34 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 18:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADCC34, octal 53346064, decimal 11,390,004.
What flights does ADCC34 operate?
Mode-S ADCC34 has broadcast 2 distinct callsigns, including BL87L, N9887L.