Apparatus

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sensors Mode-S transponder

A88C00

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N65SQ · BEECH 400 Beechjet · operated by MTJ AVIATION LLC

Hex
A88C00
Octal
52106000
Decimal
11,045,888
Country
US
Tail
N65SQ
Type
BE40
No current signal · last broadcast 7h ago
Flights observed
70
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A88C00.

Country allocation

The ICAO 24-bit address A88C00 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
N65SQ - 70 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N65SQ - Jul 14, 04:10 UTCJul 14, 06:05 UTC1h 55m
2026-07-13 N65SQ - Jul 13, 22:00 UTCJul 13, 23:00 UTC1h 0m
2026-07-13 N65SQ - Jul 13, 20:20 UTCJul 13, 20:55 UTC35m
2026-07-11 N65SQ - Jul 11, 23:55 UTCJul 12, 00:30 UTC35m
2026-07-11 N65SQ - Jul 11, 22:20 UTCJul 11, 23:10 UTC50m
2026-07-11 N65SQ - Jul 11, 17:30 UTCJul 11, 18:20 UTC50m
2026-07-11 N65SQ - Jul 11, 16:00 UTCJul 11, 16:40 UTC40m
2026-07-10 N65SQ - Jul 10, 21:05 UTCJul 10, 22:00 UTC55m
2026-07-10 N65SQ PDK → BWI Jul 10, 18:30 UTCJul 10, 20:00 UTC1h 30m
2026-07-10 N65SQ - Jul 10, 14:15 UTCJul 10, 15:35 UTC1h 20m
2026-07-10 N65SQ - Jul 10, 12:10 UTCJul 10, 12:55 UTC45m
2026-07-09 N65SQ - Jul 9, 21:45 UTCJul 9, 22:20 UTC35m
2026-07-09 N65SQ - Jul 9, 19:20 UTCJul 9, 20:45 UTC1h 25m
2026-07-09 N65SQ - Jul 9, 13:45 UTCJul 9, 15:10 UTC1h 25m
2026-07-09 N65SQ - Jul 9, 10:00 UTCJul 9, 10:40 UTC40m
2026-07-08 N65SQ - Jul 8, 08:25 UTCJul 8, 09:10 UTC45m
2026-07-08 N65SQ - Jul 8, 06:30 UTCJul 8, 07:45 UTC1h 15m
2026-07-08 N65SQ - Jul 8, 00:30 UTCJul 8, 01:55 UTC1h 25m
2026-07-07 N65SQ - Jul 7, 22:50 UTCJul 7, 23:35 UTC45m
2026-07-03 N65SQ - Jul 3, 00:20 UTCJul 3, 01:05 UTC45m
2026-07-02 N65SQ - Jul 2, 22:50 UTCJul 2, 23:50 UTC1h 0m
2026-07-02 N65SQ - Jul 2, 20:45 UTCJul 2, 21:30 UTC45m
2026-07-01 N65SQ - Jul 1, 21:50 UTCJul 1, 22:30 UTC40m
2026-07-01 N65SQ - Jul 1, 19:20 UTCJul 1, 20:30 UTC1h 10m
2026-07-01 N65SQ CHS → CKV Jul 1, 14:00 UTCJul 1, 15:10 UTC1h 10m
2026-07-01 N65SQ - Jul 1, 12:35 UTCJul 1, 13:10 UTC35m
2026-07-01 N65SQ - Jul 1, 03:50 UTCJul 1, 04:30 UTC40m
2026-07-01 N65SQ - Jul 1, 01:55 UTCJul 1, 02:50 UTC55m
2026-06-30 N65SQ - Jun 30, 20:55 UTCJun 30, 21:45 UTC50m
2026-06-30 N65SQ - Jun 30, 19:10 UTCJun 30, 19:55 UTC45m
2026-06-25 N65SQ - Jun 25, 22:59 UTCJun 25, 23:30 UTC30m
2026-06-25 N65SQ ROA → RIC Jun 25, 21:40 UTCJun 25, 22:10 UTC30m
2026-06-25 N65SQ - Jun 25, 19:49 UTCJun 25, 20:09 UTC20m
2026-06-23 N65SQ - Jun 23, 23:44 UTCJun 24, 00:09 UTC25m
2026-06-23 N65SQ - Jun 23, 21:45 UTCJun 23, 23:05 UTC1h 20m
2026-06-23 N65SQ - Jun 23, 14:39 UTCJun 23, 16:05 UTC1h 25m
2026-06-23 N65SQ - Jun 23, 13:15 UTCJun 23, 13:50 UTC35m
2026-06-19 N65SQ - Jun 19, 05:34 UTCJun 19, 07:29 UTC1h 55m
2026-06-19 N65SQ - Jun 19, 03:05 UTCJun 19, 04:39 UTC1h 35m
2026-06-19 N65SQ - Jun 19, 01:04 UTCJun 19, 02:04 UTC1h 0m
2026-06-18 N65SQ - Jun 18, 09:35 UTCJun 18, 10:35 UTC1h 0m
2026-06-18 N65SQ - Jun 18, 07:35 UTCJun 18, 08:50 UTC1h 15m
2026-06-17 N65SQ - Jun 17, 23:50 UTCJun 18, 01:10 UTC1h 20m
2026-06-17 N65SQ - Jun 17, 22:15 UTCJun 17, 23:05 UTC50m
2026-06-17 N65SQ - Jun 17, 17:45 UTCJun 17, 18:25 UTC40m
2026-06-16 N65SQ - Jun 16, 08:15 UTCJun 16, 08:55 UTC40m
2026-06-16 N65SQ - Jun 16, 05:40 UTCJun 16, 06:45 UTC1h 5m
2026-06-15 N65SQ - Jun 15, 22:00 UTCJun 15, 22:40 UTC40m
2026-06-14 N65SQ - Jun 14, 23:39 UTCJun 15, 00:10 UTC30m
2026-06-14 N65SQ - Jun 14, 22:10 UTCJun 14, 22:50 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 N65SQ page for operator, model, and routing details .

Mode-S A88C00 frequently asked

What is Mode-S code A88C00?
A88C00 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N65SQ.
Where is Mode-S A88C00 registered?
Mode-S code A88C00 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 A88C00 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A88C00, octal 52106000, decimal 11,045,888.
What flights does A88C00 operate?
Mode-S A88C00 has broadcast 1 distinct callsign, including N65SQ.