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sensors Mode-S transponder

A5B018

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N466CA · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC DBA, CAPE AIR

Hex
A5B018
Octal
51330030
Decimal
10,858,520
Country
US
Tail
N466CA
Type
C402
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
271
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S A5B018.

Country allocation

The ICAO 24-bit address A5B018 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
KAP412 - 23 2026-07-01
KAP328 - 19 2026-07-12
KAP1271 Cape Air 17 2026-07-22
KAP87 Cape Air 16 2026-07-17
KAP916 Cape Air 12 2026-06-15
KAP516 - 10 2026-07-06
KAP7 - 9 2026-06-16
KAP627 Cape Air 7 2026-07-26
KAP616 - 7 2026-07-03
KAP111 - 7 2026-06-28
KAP85 - 6 2026-06-26
KAP747 - 6 2026-06-16
KAP635 - 6 2026-06-23
KAP27 Cape Air 6 2026-07-02
KAP110 Cape Air 6 2026-07-20
KAP8380 Cape Air 5 2026-06-17
KAP155 Cape Air 5 2026-07-25
KAP109 Cape Air 5 2026-07-24
KAP5573 Cape Air 4 2026-07-20
KAP388 Cape Air 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAP627 SLK → BOS Jul 26, 20:25 UTCJul 26, 20:55 UTC30m
2026-07-26 KAP627 SLK → BOS Jul 26, 18:50 UTCJul 26, 19:10 UTC20m
2026-07-26 KAP627 SLK → BOS Jul 26, 17:45 UTCJul 26, 18:15 UTC30m
2026-07-26 KAP627 SLK → BOS Jul 26, 16:25 UTCJul 26, 16:40 UTC15m
2026-07-25 KAP155 BOS → BHB Jul 25, 17:10 UTCJul 25, 18:40 UTC1h 30m
2026-07-25 KAP155 BOS → BHB Jul 25, 15:00 UTCJul 25, 15:55 UTC55m
2026-07-25 KAP155 BOS → BHB Jul 25, 13:55 UTCJul 25, 14:05 UTC10m
2026-07-24 KAP109 BOS → ACK Jul 24, 22:55 UTCJul 24, 23:25 UTC30m
2026-07-24 KAP214 ISP → BOS Jul 24, 19:30 UTCJul 24, 20:20 UTC50m
2026-07-24 KAP925 ACK → BOS Jul 24, 13:25 UTCJul 24, 14:30 UTC1h 5m
2026-07-23 KAP6107 ACK → BOS Jul 23, 22:25 UTCJul 23, 22:50 UTC25m
2026-07-23 KAP388 BOS → BHB Jul 23, 21:50 UTCJul 23, 22:10 UTC20m
2026-07-23 KAP70 RUT → BOS Jul 23, 19:40 UTCJul 23, 20:35 UTC55m
2026-07-23 KAP388 BOS → BHB Jul 23, 17:10 UTCJul 23, 18:10 UTC1h 0m
2026-07-23 KAP1852 RKD → BOS Jul 23, 15:00 UTCJul 23, 16:05 UTC1h 5m
2026-07-23 KAP388 BOS → BHB Jul 23, 13:30 UTCJul 23, 14:25 UTC55m
2026-07-22 KAP5341 ACK → BOS Jul 22, 23:05 UTCJul 22, 23:50 UTC45m
2026-07-22 KAP1271 HYA → ACK Jul 22, 19:50 UTCJul 22, 20:05 UTC15m
2026-07-22 KAP109 BOS → ACK Jul 22, 17:10 UTCJul 22, 18:00 UTC50m
2026-07-21 KAP109 - Jul 21, 15:55 UTCJul 21, 16:05 UTC10m
2026-07-20 KAPT58 - Jul 20, 22:35 UTCJul 20, 23:30 UTC55m
2026-07-20 KAPT58 - Jul 20, 19:15 UTCJul 20, 20:30 UTC1h 15m
2026-07-20 KAP5573 BOS → SLK Jul 20, 15:50 UTCJul 20, 16:20 UTC30m
2026-07-20 KAP110 BOS → RKD Jul 20, 11:40 UTCJul 20, 12:35 UTC55m
2026-07-19 KAP110 BOS → RKD Jul 19, 17:20 UTCJul 19, 18:40 UTC1h 20m
2026-07-19 KAP110 BOS → RKD Jul 19, 14:35 UTCJul 19, 15:55 UTC1h 20m
2026-07-18 KAP110 BOS → RKD Jul 18, 20:35 UTCJul 18, 22:15 UTC1h 40m
2026-07-18 KAP1852 - Jul 18, 15:00 UTCJul 18, 16:00 UTC1h 0m
2026-07-18 KAP925 BOS → RKD Jul 18, 13:30 UTCJul 18, 14:20 UTC50m
2026-07-18 KAP110 - Jul 18, 11:10 UTCJul 18, 12:15 UTC1h 5m
2026-07-17 KAP110 - Jul 17, 22:45 UTCJul 18, 00:00 UTC1h 15m
2026-07-17 KAP1034 SLK → BOS Jul 17, 20:10 UTCJul 17, 21:20 UTC1h 10m
2026-07-17 KAP87 STT → STX Jul 17, 17:40 UTCJul 17, 18:55 UTC1h 15m
2026-07-17 KAP6178 - Jul 17, 16:24 UTCJul 17, 16:49 UTC25m
2026-07-13 KAP527 - Jul 13, 19:00 UTCJul 13, 19:15 UTC15m
2026-07-13 KAP5321 - Jul 13, 17:50 UTCJul 13, 18:25 UTC35m
2026-07-13 KAP527 - Jul 13, 16:25 UTCJul 13, 16:45 UTC20m
2026-07-13 KAP527 - Jul 13, 15:30 UTCJul 13, 15:50 UTC20m
2026-07-13 KAP296 - Jul 13, 13:10 UTCJul 13, 13:40 UTC30m
2026-07-13 KAP5001 - Jul 13, 11:40 UTCJul 13, 12:20 UTC40m
2026-07-12 KAP328 - Jul 12, 23:10 UTCJul 12, 23:20 UTC10m
2026-07-12 KAP328 - Jul 12, 21:45 UTCJul 12, 22:15 UTC30m
2026-07-12 KAP328 - Jul 12, 20:40 UTCJul 12, 21:10 UTC30m
2026-07-12 KAP328 - Jul 12, 17:20 UTCJul 12, 17:50 UTC30m
2026-07-12 KAP328 - Jul 12, 16:10 UTCJul 12, 16:40 UTC30m
2026-07-12 KAP328 - Jul 12, 14:45 UTCJul 12, 14:55 UTC10m
2026-07-10 KAP87 - Jul 10, 21:10 UTCJul 10, 21:20 UTC10m
2026-07-10 KAP87 - Jul 10, 20:00 UTCJul 10, 20:30 UTC30m
2026-07-10 KAP87 - Jul 10, 18:25 UTCJul 10, 18:55 UTC30m
2026-07-10 KAP87 - Jul 10, 15:10 UTCJul 10, 17:05 UTC1h 55m

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 N466CA page for operator, model, and routing details .

Mode-S A5B018 frequently asked

What is Mode-S code A5B018?
A5B018 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N466CA.
Where is Mode-S A5B018 registered?
Mode-S code A5B018 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 A5B018 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5B018, octal 51330030, decimal 10,858,520.
What flights does A5B018 operate?
Mode-S A5B018 has broadcast 20 distinct callsigns, including KAP412, KAP328, KAP1271, KAP87, KAP916.