Apparatus

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sensors Mode-S transponder

A74E8F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N570BN · operated by HYANNIS AIR SERVICE INC

Hex
A74E8F
Octal
51647217
Decimal
10,964,623
Country
US
Tail
N570BN
Type
BN2P
No current signal · last broadcast 13h ago
Flights observed
178
Distinct callsigns
6
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A74E8F.

Country allocation

The ICAO 24-bit address A74E8F 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 6 distinct

Callsign Airline Flights Last seen
KAP48B Cape Air 88 2026-05-29
KAP13B Cape Air 47 2026-05-25
KAP592B Cape Air 16 2026-05-26
KP48B - 14 2026-05-15
KAP223B Cape Air 12 2026-05-24
KAP189B - 1 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 KAP48B SJU → CPX May 29, 21:30 UTCMay 29, 21:45 UTC15m
2026-05-29 KAP48B SJU → CPX May 29, 20:30 UTCMay 29, 20:50 UTC20m
2026-05-29 KAP48B SJU → CPX May 29, 19:20 UTCMay 29, 19:35 UTC15m
2026-05-29 KAP48B SJU → CPX May 29, 18:15 UTCMay 29, 18:30 UTC15m
2026-05-29 KAP48B SJU → CPX May 29, 17:15 UTCMay 29, 17:30 UTC15m
2026-05-29 KAP48B SJU → CPX May 29, 16:20 UTCMay 29, 16:40 UTC20m
2026-05-29 KAP48B SJU → CPX May 29, 14:50 UTCMay 29, 15:10 UTC20m
2026-05-29 KAP48B SJU → CPX May 29, 13:55 UTCMay 29, 14:10 UTC15m
2026-05-29 KAP48B SJU → CPX May 29, 12:55 UTCMay 29, 13:15 UTC20m
2026-05-29 KAP48B SJU → CPX May 29, 12:10 UTCMay 29, 12:25 UTC15m
2026-05-28 KAP48B SJU → CPX May 28, 20:50 UTCMay 28, 21:15 UTC25m
2026-05-28 KAP48B SJU → CPX May 28, 19:15 UTCMay 28, 20:15 UTC1h 0m
2026-05-28 KAP48B SJU → CPX May 28, 18:25 UTCMay 28, 18:40 UTC15m
2026-05-28 KAP48B SJU → CPX May 28, 17:20 UTCMay 28, 17:50 UTC30m
2026-05-28 KAP48B SJU → CPX May 28, 16:10 UTCMay 28, 16:30 UTC20m
2026-05-28 KAP48B SJU → CPX May 28, 14:35 UTCMay 28, 14:50 UTC15m
2026-05-28 KAP48B SJU → CPX May 28, 13:40 UTCMay 28, 14:00 UTC20m
2026-05-28 KAP48B SJU → CPX May 28, 12:30 UTCMay 28, 12:45 UTC15m
2026-05-28 KAP48B SJU → CPX May 28, 11:35 UTCMay 28, 11:50 UTC15m
2026-05-27 KAP48B SJU → CPX May 27, 20:40 UTCMay 27, 21:00 UTC20m
2026-05-27 KAP48B SJU → CPX May 27, 19:15 UTCMay 27, 19:30 UTC15m
2026-05-27 KAP48B SJU → CPX May 27, 17:25 UTCMay 27, 17:45 UTC20m
2026-05-27 KAP48B SJU → CPX May 27, 16:15 UTCMay 27, 16:35 UTC20m
2026-05-27 KAP48B SJU → CPX May 27, 14:30 UTCMay 27, 14:45 UTC15m
2026-05-27 KAP48B SJU → CPX May 27, 13:35 UTCMay 27, 13:55 UTC20m
2026-05-27 KAP48B SJU → CPX May 27, 11:35 UTCMay 27, 12:45 UTC1h 10m
2026-05-26 KAP592B STT → SJU May 26, 20:29 UTCMay 26, 20:45 UTC15m
2026-05-26 KAP592B STT → SJU May 26, 16:59 UTCMay 26, 17:09 UTC10m
2026-05-26 KAP592B STT → SJU May 26, 14:14 UTCMay 26, 14:24 UTC10m
2026-05-26 KAP592B STT → SJU May 26, 11:44 UTCMay 26, 12:30 UTC45m
2026-05-25 KAP13B CPX → SJU May 25, 20:50 UTCMay 25, 20:59 UTC10m
2026-05-25 KAP13B CPX → SJU May 25, 14:35 UTCMay 25, 14:50 UTC15m
2026-05-25 KAP13B CPX → SJU May 25, 12:45 UTCMay 25, 13:00 UTC15m
2026-05-24 KAP223B CPX → SJU May 24, 16:10 UTCMay 24, 16:30 UTC20m
2026-05-24 KAP223B CPX → SJU May 24, 14:25 UTCMay 24, 15:00 UTC35m
2026-05-24 KAP223B CPX → SJU May 24, 13:05 UTCMay 24, 13:25 UTC20m
2026-05-23 KAP223B CPX → SJU May 23, 19:55 UTCMay 23, 20:05 UTC10m
2026-05-23 KAP223B CPX → SJU May 23, 18:15 UTCMay 23, 19:05 UTC50m
2026-05-21 KAP223B CPX → SJU May 21, 18:50 UTCMay 21, 19:15 UTC25m
2026-05-21 KAP223B CPX → SJU May 21, 18:05 UTCMay 21, 18:20 UTC15m
2026-05-21 KAP223B CPX → SJU May 21, 16:10 UTCMay 21, 17:05 UTC55m
2026-05-21 KAP223B CPX → SJU May 21, 14:15 UTCMay 21, 15:15 UTC1h 0m
2026-05-21 KAP223B CPX → SJU May 21, 13:10 UTCMay 21, 13:30 UTC20m
2026-05-20 KAP592B STT → SJU May 20, 12:25 UTCMay 20, 12:45 UTC20m
2026-05-19 KAP48B SJU → CPX May 19, 20:45 UTCMay 19, 21:00 UTC15m
2026-05-19 KAP48B SJU → CPX May 19, 19:35 UTCMay 19, 19:55 UTC20m
2026-05-19 KAP48B SJU → CPX May 19, 17:20 UTCMay 19, 17:30 UTC10m
2026-05-19 KAP48B SJU → CPX May 19, 16:25 UTCMay 19, 16:45 UTC20m
2026-05-18 KAP48B SJU → CPX May 18, 17:05 UTCMay 18, 17:25 UTC20m
2026-05-18 KAP48B SJU → CPX May 18, 16:10 UTCMay 18, 16:30 UTC20m

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 N570BN page for operator, model, and routing details .

Mode-S A74E8F frequently asked

What is Mode-S code A74E8F?
A74E8F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N570BN.
Where is Mode-S A74E8F registered?
Mode-S code A74E8F 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 A74E8F broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A74E8F, octal 51647217, decimal 10,964,623.
What flights does A74E8F operate?
Mode-S A74E8F has broadcast 6 distinct callsigns, including KAP48B, KAP13B, KAP592B, KP48B, KAP223B.