Apparatus

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sensors Mode-S transponder

A29184

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2649Z · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC

Hex
A29184
Octal
50510604
Decimal
10,654,084
Country
US
Tail
N2649Z
Type
C402
No current signal · last broadcast 6h ago
Flights observed
283
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A29184.

Country allocation

The ICAO 24-bit address A29184 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
KAP15 - 67 2026-07-13
KAP902 - 22 2026-06-23
KAP109 - 16 2026-07-07
KAP413 Cape Air 15 2026-05-31
KAP155 Cape Air 12 2026-06-07
KAP42 - 9 2026-07-08
KAPT787 - 8 2026-06-08
KAP616 Cape Air 8 2026-05-29
KAP818 - 7 2026-07-05
KAP7 - 7 2026-07-11
KAP402 - 7 2026-07-13
KAP2021 Cape Air 6 2026-06-28
KAP978 Cape Air 5 2026-05-26
KAP811 Cape Air 5 2026-05-27
KAP2041 Cape Air 5 2026-06-26
KAP763 - 4 2026-07-12
KAP2141 Cape Air 4 2026-06-25
KAP2001 - 4 2026-06-25
KAP110 Cape Air 4 2026-06-02
KAP10 Cape Air 4 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 KAP15 - Jul 13, 23:45 UTCJul 13, 23:50 UTC5m
2026-07-13 KAP15 BOS → BOS Jul 13, 22:00 UTCJul 13, 23:10 UTC1h 10m
2026-07-13 KAP2341 - Jul 13, 20:15 UTCJul 13, 20:35 UTC20m
2026-07-13 KAP2051 - Jul 13, 19:10 UTCJul 13, 19:30 UTC20m
2026-07-13 KAP402 BOS → BOS Jul 13, 16:50 UTCJul 13, 17:50 UTC1h 0m
2026-07-13 KAP402 - Jul 13, 14:55 UTCJul 13, 15:50 UTC55m
2026-07-13 KAP402 BOS → RKD Jul 13, 13:20 UTCJul 13, 14:10 UTC50m
2026-07-12 KAP186 - Jul 12, 22:30 UTCJul 13, 00:40 UTC2h 10m
2026-07-12 KAP1856 - Jul 12, 21:00 UTCJul 12, 22:00 UTC1h 0m
2026-07-12 KAP1857 - Jul 12, 19:15 UTCJul 12, 20:10 UTC55m
2026-07-12 KAP763 - Jul 12, 16:55 UTCJul 12, 18:01 UTC1h 5m
2026-07-12 KAP763 - Jul 12, 14:55 UTCJul 12, 15:35 UTC40m
2026-07-12 KAP763 - Jul 12, 11:45 UTCJul 12, 13:55 UTC2h 10m
2026-07-11 KAP1856 - Jul 11, 21:15 UTCJul 11, 22:10 UTC55m
2026-07-11 KAP1857 - Jul 11, 19:10 UTCJul 11, 20:00 UTC50m
2026-07-11 KAP1854 - Jul 11, 17:05 UTCJul 11, 18:15 UTC1h 10m
2026-07-11 KAP1853 BOS → RKD Jul 11, 15:15 UTCJul 11, 16:05 UTC50m
2026-07-11 KAP7 - Jul 11, 12:55 UTCJul 11, 13:50 UTC55m
2026-07-11 KAP7 - Jul 11, 11:35 UTCJul 11, 12:15 UTC40m
2026-07-10 KAP70 - Jul 10, 21:25 UTCJul 10, 22:10 UTC45m
2026-07-10 KAP7 - Jul 10, 20:10 UTCJul 10, 20:50 UTC40m
2026-07-10 KAP7 - Jul 10, 16:30 UTCJul 10, 19:05 UTC2h 35m
2026-07-08 KAP42 - Jul 8, 12:40 UTCJul 8, 13:10 UTC30m
2026-07-08 KAP42 - Jul 8, 11:20 UTCJul 8, 11:55 UTC35m
2026-07-08 KAP42 - Jul 8, 10:10 UTCJul 8, 10:25 UTC15m
2026-07-07 KAP109 - Jul 7, 23:20 UTCJul 7, 23:30 UTC10m
2026-07-07 KAP109 - Jul 7, 20:05 UTCJul 7, 21:05 UTC1h 0m
2026-07-07 KAP109 - Jul 7, 18:50 UTCJul 7, 19:25 UTC35m
2026-07-07 KAP109 - Jul 7, 15:55 UTCJul 7, 16:10 UTC15m
2026-07-06 KAP42 - Jul 6, 18:30 UTCJul 6, 18:50 UTC20m
2026-07-06 KAP42 - Jul 6, 17:30 UTCJul 6, 18:00 UTC30m
2026-07-06 KAP42 - Jul 6, 15:40 UTCJul 6, 16:10 UTC30m
2026-07-06 KAP42 - Jul 6, 14:25 UTCJul 6, 14:55 UTC30m
2026-07-06 KAP42 - Jul 6, 12:35 UTCJul 6, 13:10 UTC35m
2026-07-06 KAP42 - Jul 6, 11:25 UTCJul 6, 12:00 UTC35m
2026-07-05 KAP818 - Jul 5, 22:50 UTCJul 5, 23:55 UTC1h 5m
2026-07-05 KAP818 - Jul 5, 20:45 UTCJul 5, 21:55 UTC1h 10m
2026-07-05 KAP8380 - Jul 5, 19:00 UTCJul 5, 19:50 UTC50m
2026-07-02 KAP763 - Jul 2, 10:45 UTCJul 2, 11:40 UTC55m
2026-07-01 KAP402 - Jul 1, 20:10 UTCJul 1, 20:25 UTC15m
2026-07-01 KAP402 - Jul 1, 19:05 UTCJul 1, 19:25 UTC20m
2026-07-01 KAP402 - Jul 1, 17:20 UTCJul 1, 18:25 UTC1h 5m
2026-07-01 KAP15 EWB → ACK Jul 1, 15:45 UTCJul 1, 16:10 UTC25m
2026-06-29 KAP15 EWB → ACK Jun 29, 18:39 UTCJun 29, 19:00 UTC20m
2026-06-29 KAP15 EWB → ACK Jun 29, 15:30 UTCJun 29, 15:49 UTC20m
2026-06-29 KAP15 EWB → ACK Jun 29, 13:49 UTCJun 29, 14:04 UTC15m
2026-06-29 KAP15 EWB → ACK Jun 29, 12:49 UTCJun 29, 13:14 UTC25m
2026-06-29 KAP15 EWB → ACK Jun 29, 11:50 UTCJun 29, 12:05 UTC15m
2026-06-29 KAP15 EWB → ACK Jun 29, 10:50 UTCJun 29, 11:20 UTC30m
2026-06-28 KAP15 EWB → ACK Jun 28, 22:10 UTCJun 28, 22:29 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 N2649Z page for operator, model, and routing details .

Mode-S A29184 frequently asked

What is Mode-S code A29184?
A29184 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2649Z.
Where is Mode-S A29184 registered?
Mode-S code A29184 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 A29184 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A29184, octal 50510604, decimal 10,654,084.
What flights does A29184 operate?
Mode-S A29184 has broadcast 20 distinct callsigns, including KAP15, KAP902, KAP109, KAP413, KAP155.