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sensors Mode-S transponder

ADC64A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N987MT · operated by AIRPLANE FACTORY INC

Hex
ADC64A
Octal
53343112
Decimal
11,388,490
Country
US
Tail
N987MT
Type
SLG2
No current signal · last broadcast 7h ago
Flights observed
229
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S ADC64A.

Country allocation

The ICAO 24-bit address ADC64A 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
N987MT - 229 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N987MT SMO → SMO Jul 17, 22:40 UTCJul 17, 23:55 UTC1h 15m
2026-07-17 N987MT SMO → SMO Jul 17, 20:40 UTCJul 17, 21:50 UTC1h 10m
2026-07-17 N987MT SBD → SMO Jul 17, 18:55 UTCJul 17, 19:45 UTC50m
2026-07-17 N987MT - Jul 17, 17:20 UTCJul 17, 18:15 UTC55m
2026-07-17 N987MT - Jul 17, 05:20 UTCJul 17, 06:05 UTC45m
2026-07-17 N987MT - Jul 17, 04:20 UTCJul 17, 05:15 UTC55m
2026-07-16 N987MT SMO → SMO Jul 16, 21:50 UTCJul 16, 23:59 UTC2h 10m
2026-07-16 N987MT - Jul 16, 18:29 UTCJul 16, 20:45 UTC2h 15m
2026-07-16 N987MT - Jul 16, 16:30 UTCJul 16, 17:40 UTC1h 10m
2026-07-15 N987MT - Jul 15, 23:45 UTCJul 16, 01:05 UTC1h 20m
2026-07-15 N987MT - Jul 15, 21:35 UTCJul 15, 22:50 UTC1h 15m
2026-07-15 N987MT SBA → SMO Jul 15, 19:50 UTCJul 15, 20:40 UTC50m
2026-07-15 N987MT - Jul 15, 18:50 UTCJul 15, 19:40 UTC50m
2026-07-15 N987MT - Jul 15, 16:50 UTCJul 15, 17:50 UTC1h 0m
2026-07-14 N987MT SBA → SMO Jul 14, 21:40 UTCJul 14, 23:05 UTC1h 24m
2026-07-14 N987MT SMO → SBA Jul 14, 20:30 UTCJul 14, 21:30 UTC1h 0m
2026-07-14 N987MT SMO → SMO Jul 14, 18:35 UTCJul 14, 19:45 UTC1h 10m
2026-07-13 N987MT - Jul 13, 23:35 UTCJul 14, 00:45 UTC1h 10m
2026-07-13 N987MT - Jul 13, 21:35 UTCJul 13, 23:00 UTC1h 25m
2026-07-13 N987MT - Jul 13, 19:55 UTCJul 13, 21:00 UTC1h 5m
2026-07-13 N987MT SMO → SBA Jul 13, 18:50 UTCJul 13, 19:40 UTC50m
2026-07-13 N987MT SMO → SMO Jul 13, 16:50 UTCJul 13, 18:05 UTC1h 15m
2026-07-11 N987MT - Jul 11, 20:55 UTCJul 11, 21:45 UTC50m
2026-07-11 N987MT - Jul 11, 20:25 UTCJul 11, 20:50 UTC25m
2026-07-11 N987MT HMT → HMT Jul 11, 19:50 UTCJul 11, 20:05 UTC15m
2026-07-11 N987MT HMT → HMT Jul 11, 19:20 UTCJul 11, 19:45 UTC25m
2026-07-11 N987MT SMO → HMT Jul 11, 17:45 UTCJul 11, 18:50 UTC1h 5m
2026-07-10 N987MT SMO → SMO Jul 10, 23:35 UTCJul 11, 00:50 UTC1h 15m
2026-07-10 N987MT SMO → SMO Jul 10, 19:00 UTCJul 10, 19:50 UTC50m
2026-07-09 N987MT TOA → SMO Jul 9, 22:45 UTCJul 9, 23:00 UTC15m
2026-07-09 N987MT - Jul 9, 19:05 UTCJul 9, 21:55 UTC2h 50m
2026-07-08 N987MT TOA → TOA Jul 8, 23:35 UTCJul 8, 23:55 UTC20m
2026-07-07 N987MT TOA → TOA Jul 7, 16:55 UTCJul 7, 18:25 UTC1h 30m
2026-07-07 N987MT - Jul 7, 00:30 UTCJul 7, 00:50 UTC20m
2026-07-06 N987MT - Jul 6, 20:40 UTCJul 6, 21:10 UTC30m
2026-07-06 N987MT LGB → LGB Jul 6, 18:50 UTCJul 6, 19:30 UTC40m
2026-07-06 N987MT - Jul 6, 16:20 UTCJul 6, 17:30 UTC1h 10m
2026-07-03 N987MT LGB → LGB Jul 3, 01:10 UTCJul 3, 02:30 UTC1h 20m
2026-07-02 N987MT - Jul 2, 23:15 UTCJul 3, 00:15 UTC1h 0m
2026-07-02 N987MT - Jul 2, 21:05 UTCJul 2, 22:05 UTC1h 0m
2026-07-02 N987MT - Jul 2, 17:25 UTCJul 2, 18:25 UTC1h 0m
2026-07-01 N987MT - Jul 1, 22:40 UTCJul 1, 23:45 UTC1h 5m
2026-07-01 N987MT LGB → LGB Jul 1, 21:20 UTCJul 1, 21:30 UTC10m
2026-06-30 N987MT - Jun 30, 22:30 UTCJun 30, 23:40 UTC1h 10m
2026-06-30 N987MT - Jun 30, 18:30 UTCJun 30, 19:40 UTC1h 10m
2026-06-29 N987MT - Jun 29, 22:44 UTCJun 30, 00:00 UTC1h 15m
2026-06-29 N987MT LGB → LGB Jun 29, 21:05 UTCJun 29, 21:44 UTC40m
2026-06-29 N987MT - Jun 29, 19:15 UTCJun 29, 19:54 UTC40m
2026-06-28 N987MT LGB → LGB Jun 28, 19:29 UTCJun 28, 19:55 UTC25m
2026-06-28 N987MT - Jun 28, 02:49 UTCJun 28, 06:34 UTC3h 45m

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 N987MT page for operator, model, and routing details .

Mode-S ADC64A frequently asked

What is Mode-S code ADC64A?
ADC64A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N987MT.
Where is Mode-S ADC64A registered?
Mode-S code ADC64A 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 ADC64A 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 ADC64A, octal 53343112, decimal 11,388,490.
What flights does ADC64A operate?
Mode-S ADC64A has broadcast 1 distinct callsign, including N987MT.