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sensors Mode-S transponder

AA635C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N769EA · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC

Hex
AA635C
Octal
52461534
Decimal
11,166,556
Country
US
Tail
N769EA
Type
C402
No current signal · last broadcast 2d ago
Flights observed
243
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AA635C.

Country allocation

The ICAO 24-bit address AA635C 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
KAP186 Cape Air 34 2026-05-24
KAP110 Cape Air 33 2026-04-26
KAP713 Cape Air 26 2026-04-27
KAP64 - 23 2026-06-26
KAP131 - 21 2026-06-27
KAP222 Cape Air 9 2026-06-18
KAP1 - 9 2026-06-15
KAP211 - 8 2026-07-04
KAP161 - 8 2026-07-15
KAP157 - 8 2026-07-07
KAP65 - 7 2026-07-10
KAP514 - 6 2026-07-05
KAP333 - 6 2026-07-08
KAP335 Cape Air 5 2026-06-16
KAP80 - 4 2026-07-07
KAP189 - 4 2026-07-04
KAP635 Cape Air 3 2026-05-30
KAP30 Cape Air 3 2026-06-10
KAP252 Cape Air 3 2026-06-12
KAP2296 Cape Air 3 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 KAP161 - Jul 15, 20:15 UTCJul 15, 20:30 UTC15m
2026-07-15 KAP161 - Jul 15, 18:55 UTCJul 15, 19:10 UTC15m
2026-07-15 KAP161 - Jul 15, 16:45 UTCJul 15, 17:00 UTC15m
2026-07-15 KAP161 - Jul 15, 15:10 UTCJul 15, 15:25 UTC15m
2026-07-10 KAP65 - Jul 10, 13:40 UTCJul 10, 13:50 UTC10m
2026-07-10 KAP65 - Jul 10, 11:30 UTCJul 10, 11:45 UTC15m
2026-07-09 KAP65 - Jul 9, 21:45 UTCJul 9, 22:00 UTC15m
2026-07-09 KAP65 - Jul 9, 19:30 UTCJul 9, 19:45 UTC15m
2026-07-09 KAP65 - Jul 9, 15:00 UTCJul 9, 15:40 UTC40m
2026-07-09 KAP65 - Jul 9, 13:40 UTCJul 9, 13:55 UTC15m
2026-07-09 KAP65 - Jul 9, 11:35 UTCJul 9, 11:45 UTC10m
2026-07-08 KAP333 CPX → SJU Jul 8, 21:50 UTCJul 8, 22:10 UTC20m
2026-07-08 KAP333 - Jul 8, 19:30 UTCJul 8, 19:50 UTC20m
2026-07-08 KAP333 - Jul 8, 15:45 UTCJul 8, 16:00 UTC15m
2026-07-08 KAP333 - Jul 8, 14:55 UTCJul 8, 15:05 UTC10m
2026-07-08 KAP333 - Jul 8, 13:45 UTCJul 8, 14:05 UTC20m
2026-07-08 KAP333 - Jul 8, 11:25 UTCJul 8, 11:45 UTC20m
2026-07-07 KAP157 - Jul 7, 23:40 UTCJul 7, 23:50 UTC10m
2026-07-07 KAP157 - Jul 7, 20:20 UTCJul 7, 20:30 UTC10m
2026-07-07 KAP157 - Jul 7, 19:15 UTCJul 7, 19:40 UTC25m
2026-07-07 KAP505 - Jul 7, 15:50 UTCJul 7, 16:15 UTC25m
2026-07-07 KAP505 - Jul 7, 14:35 UTCJul 7, 15:10 UTC35m
2026-07-07 KAP80 - Jul 7, 13:20 UTCJul 7, 13:45 UTC25m
2026-07-07 KAP80 - Jul 7, 11:40 UTCJul 7, 11:55 UTC15m
2026-07-06 KAP80 - Jul 6, 17:45 UTCJul 6, 18:20 UTC35m
2026-07-06 KAP80 - Jul 6, 15:55 UTCJul 6, 17:10 UTC1h 15m
2026-07-06 KAP5150 SJU → MAZ Jul 6, 12:10 UTCJul 6, 12:20 UTC10m
2026-07-05 KAP514 - Jul 5, 21:50 UTCJul 5, 22:00 UTC10m
2026-07-05 KAP514 - Jul 5, 21:00 UTCJul 5, 21:10 UTC10m
2026-07-05 KAP514 - Jul 5, 19:35 UTCJul 5, 19:50 UTC15m
2026-07-05 KAP514 - Jul 5, 16:00 UTCJul 5, 16:10 UTC10m
2026-07-05 KAP514 - Jul 5, 14:15 UTCJul 5, 14:25 UTC10m
2026-07-05 KAP514 - Jul 5, 13:15 UTCJul 5, 13:25 UTC10m
2026-07-04 KAP189 - Jul 4, 23:35 UTCJul 4, 23:45 UTC10m
2026-07-04 KAP189 - Jul 4, 22:05 UTCJul 4, 22:50 UTC45m
2026-07-04 KAP189 - Jul 4, 20:25 UTCJul 4, 20:40 UTC15m
2026-07-04 KAP189 - Jul 4, 19:30 UTCJul 4, 19:40 UTC10m
2026-07-04 KAP211 - Jul 4, 11:15 UTCJul 4, 11:25 UTC10m
2026-06-30 KAP2 - Jun 30, 20:35 UTCJun 30, 20:50 UTC15m
2026-06-30 KAP202 - Jun 30, 14:25 UTCJun 30, 14:45 UTC20m
2026-06-29 KAP2 - Jun 29, 20:09 UTCJun 29, 20:30 UTC20m
2026-06-29 KAP157 SJU → VQS Jun 29, 16:44 UTCJun 29, 16:55 UTC10m
2026-06-28 KAP157 SJU → VQS Jun 28, 20:50 UTCJun 28, 20:59 UTC10m
2026-06-28 KAP157 SJU → VQS Jun 28, 18:19 UTCJun 28, 19:04 UTC45m
2026-06-27 KAP131 - Jun 27, 15:00 UTCJun 27, 15:14 UTC15m
2026-06-26 KAP64 - Jun 26, 22:14 UTCJun 26, 23:19 UTC1h 5m
2026-06-26 KAP64 - Jun 26, 21:24 UTCJun 26, 21:35 UTC10m
2026-06-26 KAP64 - Jun 26, 15:10 UTCJun 26, 15:25 UTC15m
2026-06-25 KAP64 - Jun 25, 22:54 UTCJun 25, 23:09 UTC15m
2026-06-25 KAP157 SJU → VQS Jun 25, 21:50 UTCJun 25, 21:59 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 N769EA page for operator, model, and routing details .

Mode-S AA635C frequently asked

What is Mode-S code AA635C?
AA635C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N769EA.
Where is Mode-S AA635C registered?
Mode-S code AA635C 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 AA635C broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA635C, octal 52461534, decimal 11,166,556.
What flights does AA635C operate?
Mode-S AA635C has broadcast 20 distinct callsigns, including KAP186, KAP110, KAP713, KAP64, KAP131.