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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 Jul 26, 16:25 UTC
Flights observed
278
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 16:25 UTC

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
KAP131 - 28 2026-07-19
KAP713 Cape Air 26 2026-04-27
KAP64 - 23 2026-06-26
KAP65 Cape Air 12 2026-07-25
KAP222 - 11 2026-07-24
KAP161 Cape Air 11 2026-07-26
KAP157 - 10 2026-07-18
KAP1 - 9 2026-06-15
KAP505 - 8 2026-07-21
KAP211 - 8 2026-07-04
KAP514 - 6 2026-07-05
KAP333 - 6 2026-07-08
KAP63 Cape Air 5 2026-07-24
KAP335 Cape Air 5 2026-06-16
KAP80 - 4 2026-07-07
KAP47 Cape Air 4 2026-07-25
KAP189 - 4 2026-07-04
KAP635 Cape Air 3 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAP161 VQS → SJU Jul 26, 16:15 UTCJul 26, 16:25 UTC10m
2026-07-26 KAP161 VQS → SJU Jul 26, 15:00 UTCJul 26, 15:15 UTC15m
2026-07-26 KAP161 VQS → SJU Jul 26, 14:00 UTCJul 26, 14:10 UTC10m
2026-07-25 KAP47 STT → SJU Jul 25, 22:50 UTCJul 25, 23:00 UTC10m
2026-07-25 KAP47 STT → SJU Jul 25, 21:50 UTCJul 25, 22:00 UTC10m
2026-07-25 KAP47 STT → SJU Jul 25, 21:05 UTCJul 25, 21:15 UTC10m
2026-07-25 KAP47 STT → SJU Jul 25, 19:45 UTCJul 25, 19:55 UTC10m
2026-07-25 KAP65 BOS → MVY Jul 25, 17:55 UTCJul 25, 18:10 UTC15m
2026-07-25 KAP65 BOS → MVY Jul 25, 17:10 UTCJul 25, 17:20 UTC10m
2026-07-25 KAP65 BOS → MVY Jul 25, 15:15 UTCJul 25, 16:00 UTC45m
2026-07-25 KAP65 BOS → MVY Jul 25, 14:10 UTCJul 25, 14:20 UTC10m
2026-07-25 KAP65 BOS → MVY Jul 25, 11:25 UTCJul 25, 11:40 UTC15m
2026-07-24 KAP222 SJU → VQS Jul 24, 20:50 UTCJul 24, 21:00 UTC10m
2026-07-24 KAP63 BOS → RUT Jul 24, 18:45 UTCJul 24, 19:35 UTC50m
2026-07-24 KAP63 BOS → RUT Jul 24, 15:20 UTCJul 24, 15:30 UTC10m
2026-07-24 KAP63 BOS → RUT Jul 24, 14:05 UTCJul 24, 14:25 UTC20m
2026-07-24 KAP222 - Jul 24, 11:35 UTCJul 24, 11:45 UTC10m
2026-07-23 KAP230 SJU → EIS Jul 23, 19:00 UTCJul 23, 19:15 UTC15m
2026-07-21 KAP505 - Jul 21, 23:10 UTCJul 21, 23:25 UTC15m
2026-07-21 KAP505 - Jul 21, 22:10 UTCJul 21, 22:25 UTC15m
2026-07-21 KAP505 - Jul 21, 20:55 UTCJul 21, 21:10 UTC15m
2026-07-21 KAP505 - Jul 21, 18:55 UTCJul 21, 19:05 UTC10m
2026-07-21 KAP505 - Jul 21, 18:10 UTCJul 21, 18:20 UTC10m
2026-07-21 KAP505 - Jul 21, 15:45 UTCJul 21, 16:00 UTC15m
2026-07-19 KAP131 - Jul 19, 22:50 UTCJul 19, 23:05 UTC15m
2026-07-19 KAP131 - Jul 19, 21:55 UTCJul 19, 22:10 UTC15m
2026-07-19 KAP131 - Jul 19, 20:55 UTCJul 19, 21:05 UTC10m
2026-07-19 KAP131 - Jul 19, 19:10 UTCJul 19, 19:25 UTC15m
2026-07-19 KAP131 - Jul 19, 18:05 UTCJul 19, 18:20 UTC15m
2026-07-19 KAP131 - Jul 19, 15:20 UTCJul 19, 15:35 UTC15m
2026-07-18 KAP131 - Jul 18, 23:05 UTCJul 18, 23:15 UTC10m
2026-07-18 KAP157 - Jul 18, 20:20 UTCJul 18, 20:35 UTC15m
2026-07-18 KAP157 - Jul 18, 18:50 UTCJul 18, 19:00 UTC10m
2026-07-18 KAP1903 - Jul 18, 15:35 UTCJul 18, 15:50 UTC15m
2026-07-18 KAP1903 - Jul 18, 12:35 UTCJul 18, 12:50 UTC15m
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

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 Jul 26, 16:25 UTC.
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, KAP131, KAP713, KAP64.