Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ADCA0C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N988ND · operated by UND AEROSPACE FOUNDATION

Hex
ADCA0C
Octal
53345014
Decimal
11,389,452
Country
US
Tail
N988ND
Type
PA44
Broadcasting now · callsign NDU88T · 7,325 ft
Flights observed
118
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Current position

ADCA0C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ADCA0C 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
NDU88T - 118 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 NDU88T - Jul 14, 17:20 UTCJul 14, 18:15 UTC55m
2026-07-14 NDU88T - Jul 14, 14:30 UTCJul 14, 15:05 UTC35m
2026-07-13 NDU88T - Jul 13, 23:30 UTCJul 14, 01:00 UTC1h 30m
2026-07-13 NDU88T - Jul 13, 15:15 UTCJul 13, 16:50 UTC1h 35m
2026-07-11 NDU88T - Jul 11, 18:50 UTCJul 11, 20:35 UTC1h 45m
2026-07-10 NDU88T - Jul 10, 20:00 UTCJul 10, 20:10 UTC10m
2026-07-10 NDU88T - Jul 10, 17:45 UTCJul 10, 18:00 UTC15m
2026-07-10 NDU88T - Jul 10, 16:25 UTCJul 10, 17:05 UTC40m
2026-07-09 NDU88T - Jul 9, 19:45 UTCJul 9, 21:15 UTC1h 30m
2026-07-08 NDU88T - Jul 8, 17:50 UTCJul 8, 18:05 UTC15m
2026-07-07 NDU88T - Jul 7, 17:40 UTCJul 7, 17:50 UTC10m
2026-07-07 NDU88T - Jul 7, 16:00 UTCJul 7, 16:30 UTC30m
2026-07-06 NDU88T - Jul 6, 16:30 UTCJul 6, 16:50 UTC20m
2026-07-06 NDU88T - Jul 6, 15:15 UTCJul 6, 15:35 UTC20m
2026-07-01 NDU88T - Jul 1, 23:30 UTCJul 1, 23:40 UTC10m
2026-07-01 NDU88T - Jul 1, 15:20 UTCJul 1, 16:10 UTC50m
2026-07-01 NDU88T - Jul 1, 13:45 UTCJul 1, 14:35 UTC50m
2026-06-27 NDU88T - Jun 27, 13:00 UTCJun 27, 14:25 UTC1h 25m
2026-06-27 NDU88T - Jun 27, 01:19 UTCJun 27, 01:54 UTC35m
2026-06-27 NDU88T - Jun 27, 00:10 UTCJun 27, 00:44 UTC35m
2026-06-26 NDU88T - Jun 26, 20:00 UTCJun 26, 20:29 UTC30m
2026-06-26 NDU88T - Jun 26, 18:04 UTCJun 26, 18:24 UTC20m
2026-06-26 NDU88T - Jun 26, 01:29 UTCJun 26, 02:00 UTC30m
2026-06-25 NDU88T - Jun 25, 14:59 UTCJun 25, 15:20 UTC20m
2026-06-22 NDU88T - Jun 22, 22:30 UTCJun 22, 22:40 UTC10m
2026-06-18 NDU88T - Jun 18, 16:20 UTCJun 18, 16:35 UTC15m
2026-06-17 NDU88T - Jun 17, 23:25 UTCJun 18, 00:25 UTC1h 0m
2026-06-17 NDU88T - Jun 17, 00:35 UTCJun 17, 01:45 UTC1h 10m
2026-06-16 NDU88T - Jun 16, 20:00 UTCJun 16, 20:50 UTC50m
2026-06-16 NDU88T - Jun 16, 16:45 UTCJun 16, 17:05 UTC20m
2026-06-16 NDU88T - Jun 16, 14:09 UTCJun 16, 14:35 UTC25m
2026-06-15 NDU88T - Jun 15, 15:25 UTCJun 15, 16:45 UTC1h 20m
2026-06-15 NDU88T - Jun 15, 12:15 UTCJun 15, 13:40 UTC1h 25m
2026-06-13 NDU88T - Jun 13, 21:05 UTCJun 13, 21:30 UTC25m
2026-06-13 NDU88T - Jun 13, 19:40 UTCJun 13, 20:15 UTC35m
2026-06-13 NDU88T - Jun 13, 16:25 UTCJun 13, 16:50 UTC25m
2026-06-13 NDU88T - Jun 13, 14:05 UTCJun 13, 14:15 UTC10m
2026-06-12 NDU88T - Jun 12, 17:40 UTCJun 12, 18:10 UTC30m
2026-06-12 NDU88T - Jun 12, 14:15 UTCJun 12, 14:25 UTC10m
2026-06-12 NDU88T - Jun 12, 01:05 UTCJun 12, 01:45 UTC40m
2026-06-10 NDU88T - Jun 10, 13:40 UTCJun 10, 15:10 UTC1h 30m
2026-06-09 NDU88T - Jun 9, 17:10 UTCJun 9, 18:10 UTC1h 0m
2026-06-09 NDU88T - Jun 9, 14:55 UTCJun 9, 15:10 UTC15m
2026-06-09 NDU88T - Jun 9, 13:40 UTCJun 9, 14:20 UTC40m
2026-06-08 NDU88T - Jun 8, 21:45 UTCJun 8, 21:55 UTC10m
2026-06-08 NDU88T - Jun 8, 19:30 UTCJun 8, 20:10 UTC40m
2026-06-08 NDU88T - Jun 8, 18:20 UTCJun 8, 18:40 UTC20m
2026-06-08 NDU88T - Jun 8, 13:35 UTCJun 8, 13:45 UTC10m
2026-06-06 NDU88T - Jun 6, 15:10 UTCJun 6, 16:45 UTC1h 35m
2026-06-04 NDU88T - Jun 4, 15:40 UTCJun 4, 15:50 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 N988ND page for operator, model, and routing details .

Mode-S ADCA0C frequently asked

What is Mode-S code ADCA0C?
ADCA0C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N988ND.
Where is Mode-S ADCA0C registered?
Mode-S code ADCA0C 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 ADCA0C broadcasting right now?
Yes. Mode-S ADCA0C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADCA0C, octal 53345014, decimal 11,389,452.
What flights does ADCA0C operate?
Mode-S ADCA0C has broadcast 1 distinct callsign, including NDU88T.