Apparatus

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sensors Mode-S transponder

A08689

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N133CA · TECNAM P-2012 Traveller · operated by HYANNIS AIR SERVICE INC

Hex
A08689
Octal
50103211
Decimal
10,520,201
Country
US
Tail
N133CA
Type
P212
No current signal · last broadcast 5h ago
Flights observed
294
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A08689.

Country allocation

The ICAO 24-bit address A08689 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
KAP734 - 33 2026-07-13
KAP5050 - 21 2026-07-12
KAPT9 - 14 2026-07-09
KAP922 - 14 2026-06-17
KAP801 - 14 2026-07-05
KAP926 - 11 2026-07-13
KAP501 Cape Air 9 2026-05-18
KAPT801 - 8 2026-07-11
KAP54 - 8 2026-06-20
KAP164 Cape Air 8 2026-05-26
KAP1862 Cape Air 7 2026-05-30
KAP155 Cape Air 6 2026-06-05
KAPT787 - 5 2026-07-08
KAP1004 Cape Air 5 2026-05-29
KAP82 - 4 2026-07-05
KAP777 Cape Air 4 2026-04-23
KAP5483 - 4 2026-07-14
KAP1880 Cape Air 4 2026-05-17
KAP1874 Cape Air 4 2026-05-18
KAP1870 Cape Air 4 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 KAP68 - Jul 17, 17:35 UTCJul 17, 19:05 UTC1h 30m
2026-07-17 KAP68 - Jul 17, 15:05 UTCJul 17, 16:19 UTC1h 15m
2026-07-16 KAP45 - Jul 16, 15:45 UTCJul 16, 17:30 UTC1h 45m
2026-07-16 KAP1026 - Jul 16, 11:20 UTCJul 16, 12:30 UTC1h 10m
2026-07-15 KAP45 - Jul 15, 21:35 UTCJul 15, 23:10 UTC1h 35m
2026-07-15 KAP1034 - Jul 15, 18:45 UTCJul 15, 20:00 UTC1h 15m
2026-07-15 KAP45 - Jul 15, 15:50 UTCJul 15, 17:20 UTC1h 30m
2026-07-15 KAP1026 - Jul 15, 11:15 UTCJul 15, 12:35 UTC1h 20m
2026-07-14 KAP5483 - Jul 14, 17:00 UTCJul 14, 18:55 UTC1h 55m
2026-07-14 KAP5483 - Jul 14, 14:30 UTCJul 14, 16:05 UTC1h 35m
2026-07-13 KAP5483 - Jul 13, 21:00 UTCJul 13, 22:30 UTC1h 30m
2026-07-13 KAP926 - Jul 13, 18:50 UTCJul 13, 19:20 UTC30m
2026-07-13 KAP7761 - Jul 13, 17:50 UTCJul 13, 18:00 UTC10m
2026-07-13 KAP1061 - Jul 13, 15:00 UTCJul 13, 16:35 UTC1h 35m
2026-07-13 KAP1060 - Jul 13, 13:10 UTCJul 13, 14:15 UTC1h 5m
2026-07-13 KAP734 - Jul 13, 11:15 UTCJul 13, 11:25 UTC10m
2026-07-12 KAP5050 - Jul 12, 23:05 UTCJul 12, 23:15 UTC10m
2026-07-12 KAP5050 - Jul 12, 21:15 UTCJul 12, 21:40 UTC25m
2026-07-12 KAP5050 BOS → PVC Jul 12, 20:10 UTCJul 12, 20:30 UTC20m
2026-07-12 KAP5050 - Jul 12, 18:45 UTCJul 12, 19:15 UTC30m
2026-07-11 KAP734 - Jul 11, 23:00 UTCJul 11, 23:10 UTC10m
2026-07-11 KAP734 - Jul 11, 21:45 UTCJul 11, 22:15 UTC30m
2026-07-11 KAP5201 - Jul 11, 20:10 UTCJul 11, 20:50 UTC40m
2026-07-11 KAP734 - Jul 11, 17:15 UTCJul 11, 18:50 UTC1h 35m
2026-07-11 KAP734 - Jul 11, 15:00 UTCJul 11, 16:05 UTC1h 5m
2026-07-11 KAPT801 - Jul 11, 01:20 UTCJul 11, 02:10 UTC50m
2026-07-10 KAPT801 - Jul 10, 23:10 UTCJul 10, 23:40 UTC30m
2026-07-10 KAPT801 BOS → MVY Jul 10, 22:10 UTCJul 10, 22:40 UTC30m
2026-07-10 KAPT801 MVY → BOS Jul 10, 20:45 UTCJul 10, 21:20 UTC35m
2026-07-10 KAPT801 - Jul 10, 19:40 UTCJul 10, 20:10 UTC30m
2026-07-10 KAPT801 - Jul 10, 18:10 UTCJul 10, 18:35 UTC25m
2026-07-09 KAPT9 - Jul 9, 19:10 UTCJul 9, 20:15 UTC1h 5m
2026-07-09 KAPT9 - Jul 9, 17:10 UTCJul 9, 18:15 UTC1h 5m
2026-07-08 KAPT787 - Jul 8, 21:05 UTCJul 8, 21:30 UTC25m
2026-07-08 KAPT787 - Jul 8, 19:40 UTCJul 8, 21:00 UTC1h 20m
2026-07-08 KAPT787 - Jul 8, 16:35 UTCJul 8, 17:35 UTC1h 0m
2026-07-07 KAPT787 - Jul 7, 17:20 UTCJul 7, 17:40 UTC20m
2026-07-07 KAPT91 - Jul 7, 15:20 UTCJul 7, 16:10 UTC50m
2026-07-06 KAP6191 HYA → BOS Jul 6, 17:00 UTCJul 6, 17:25 UTC25m
2026-07-06 KAP402 - Jul 6, 15:00 UTCJul 6, 16:10 UTC1h 10m
2026-07-06 KAP402 BOS → RKD Jul 6, 13:10 UTCJul 6, 14:10 UTC1h 0m
2026-07-06 KAP1850 RKD → BOS Jul 6, 11:05 UTCJul 6, 12:00 UTC55m
2026-07-05 KAP82 - Jul 5, 21:55 UTCJul 5, 22:55 UTC1h 0m
2026-07-05 KAP5042 ACK → BOS Jul 5, 12:45 UTCJul 5, 13:15 UTC30m
2026-07-05 KAP7832 - Jul 5, 11:35 UTCJul 5, 11:50 UTC15m
2026-07-05 KAP801 - Jul 5, 01:20 UTCJul 5, 02:25 UTC1h 5m
2026-07-04 KAP801 - Jul 4, 23:45 UTCJul 5, 00:25 UTC40m
2026-07-04 KAP801 - Jul 4, 22:45 UTCJul 4, 23:15 UTC30m
2026-07-04 KAP801 - Jul 4, 21:05 UTCJul 4, 21:30 UTC25m
2026-07-04 KAP5091 BOS → ACK Jul 4, 15:55 UTCJul 4, 16:25 UTC30m

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 N133CA page for operator, model, and routing details .

Mode-S A08689 frequently asked

What is Mode-S code A08689?
A08689 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N133CA.
Where is Mode-S A08689 registered?
Mode-S code A08689 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 A08689 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A08689, octal 50103211, decimal 10,520,201.
What flights does A08689 operate?
Mode-S A08689 has broadcast 20 distinct callsigns, including KAP734, KAP5050, KAPT9, KAP922, KAP801.