Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD1FEE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N945CA · TECNAM P-2012 Traveller · operated by HYANNIS AIR SERVICE INC

Hex
AD1FEE
Octal
53217756
Decimal
11,345,902
Country
US
Tail
N945CA
Type
P212
No current signal · last broadcast 6h ago
Flights observed
141
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S AD1FEE.

Country allocation

The ICAO 24-bit address AD1FEE 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
KAP5050 Cape Air 20 2026-05-16
KAP1333 Cape Air 15 2026-05-21
KAP1850 Cape Air 9 2026-05-16
KAP82 Cape Air 7 2026-05-04
KAP1856 Cape Air 7 2026-05-14
KAP7021 Cape Air 6 2026-05-16
KAP2112 Cape Air 6 2026-05-22
KAP926 Cape Air 5 2026-05-20
KAP922 Cape Air 5 2026-05-01
KAP1006 Cape Air 5 2026-05-21
KAP5483 Cape Air 4 2026-05-29
KAP388 - 4 2026-04-14
KAP164 Cape Air 4 2026-05-17
KAP1226 - 4 2026-05-01
KAP501 Cape Air 3 2026-05-20
KAPT9 - 2 2026-05-12
KAPT77 - 2 2026-05-12
KAPT40 - 2 2026-04-15
KAP777 Cape Air 2 2026-05-18
KAP68 Cape Air 2 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 KAP5483 SLK → JFK May 29, 16:35 UTCMay 29, 18:00 UTC1h 25m
2026-05-29 KAP5483 SLK → JFK May 29, 14:05 UTCMay 29, 15:20 UTC1h 15m
2026-05-28 KAP5483 SLK → JFK May 28, 17:05 UTCMay 28, 18:45 UTC1h 40m
2026-05-28 KAP5483 SLK → JFK May 28, 14:45 UTCMay 28, 16:15 UTC1h 30m
2026-05-25 KAP68 BOS → MVY May 25, 15:45 UTCMay 25, 16:05 UTC20m
2026-05-25 KAP68 BOS → MVY May 25, 14:00 UTCMay 25, 14:55 UTC55m
2026-05-22 KAP2112 LEB → BOS May 22, 13:00 UTCMay 22, 13:45 UTC45m
2026-05-22 KAP2112 LEB → BOS May 22, 11:00 UTCMay 22, 11:55 UTC55m
2026-05-21 KAP2112 LEB → BOS May 21, 21:50 UTCMay 21, 22:35 UTC45m
2026-05-21 KAP1006 AUG → BOS May 21, 19:55 UTCMay 21, 20:35 UTC40m
2026-05-21 KAP1333 BOS → BHB May 21, 17:05 UTCMay 21, 17:30 UTC25m
2026-05-21 KAP1874 LEB → BOS May 21, 15:00 UTCMay 21, 15:45 UTC45m
2026-05-21 KAP2112 LEB → BOS May 21, 12:40 UTCMay 21, 13:25 UTC45m
2026-05-21 KAP2112 LEB → BOS May 21, 11:10 UTCMay 21, 11:55 UTC45m
2026-05-20 KAP501 LEB → HPN May 20, 22:10 UTCMay 20, 23:00 UTC50m
2026-05-20 KAP926 BOS → PVC May 20, 20:10 UTCMay 20, 21:00 UTC50m
2026-05-20 KAP926 BOS → PVC May 20, 18:50 UTCMay 20, 19:40 UTC50m
2026-05-20 KAP1874 LEB → BOS May 20, 15:00 UTCMay 20, 15:40 UTC40m
2026-05-20 KAP501 LEB → HPN May 20, 12:50 UTCMay 20, 13:35 UTC45m
2026-05-20 KAP1870 LEB → BOS May 20, 11:10 UTCMay 20, 11:50 UTC40m
2026-05-20 KAP2112 LEB → BOS May 20, 00:05 UTCMay 20, 00:55 UTC50m
2026-05-19 KAP418 BOS → BHB May 19, 16:00 UTCMay 19, 16:15 UTC15m
2026-05-19 KAP212 BHB → BOS May 19, 14:10 UTCMay 19, 15:10 UTC1h 0m
2026-05-18 KAP777 BHB → BOS May 18, 22:10 UTCMay 18, 23:15 UTC1h 5m
2026-05-18 KAP1838 BHB → BOS May 18, 19:10 UTCMay 18, 20:35 UTC1h 25m
2026-05-18 KAP777 BHB → BOS May 18, 17:30 UTCMay 18, 18:25 UTC55m
2026-05-17 KAP3261 MVY → BOS May 17, 19:55 UTCMay 17, 20:20 UTC25m
2026-05-17 KAP164 MVY → HYA May 17, 17:40 UTCMay 17, 18:05 UTC25m
2026-05-17 KAP60 RUT → BOS May 17, 15:40 UTCMay 17, 16:30 UTC50m
2026-05-17 KAP164 MVY → HYA May 17, 13:05 UTCMay 17, 13:55 UTC50m
2026-05-16 KAP7021 HYA → BOS May 16, 16:20 UTCMay 16, 17:01 UTC40m
2026-05-16 KAP5050 BOS → RKD May 16, 14:11 UTCMay 16, 14:35 UTC25m
2026-05-16 KAP1850 RKD → BOS May 16, 11:55 UTCMay 16, 13:01 UTC1h 5m
2026-05-15 KAP5050 BOS → RKD May 15, 22:00 UTCMay 15, 23:05 UTC1h 5m
2026-05-15 KAP1006 AUG → BOS May 15, 20:15 UTCMay 15, 21:00 UTC45m
2026-05-15 KAP5050 BOS → RKD May 15, 18:10 UTCMay 15, 18:40 UTC30m
2026-05-15 KAP1850 RKD → BOS May 15, 11:55 UTCMay 15, 13:00 UTC1h 5m
2026-05-14 KAP5050 BOS → RKD May 14, 22:35 UTCMay 14, 23:00 UTC25m
2026-05-14 KAP1856 RKD → BOS May 14, 20:40 UTCMay 14, 21:55 UTC1h 15m
2026-05-14 KAP5050 BOS → RKD May 14, 18:30 UTCMay 14, 18:55 UTC25m
2026-05-14 KAP7021 HYA → BOS May 14, 17:15 UTCMay 14, 17:55 UTC40m
2026-05-12 KAPT77 - May 12, 12:20 UTCMay 12, 14:25 UTC2h 5m
2026-05-12 KAPT9 - May 12, 10:50 UTCMay 12, 11:15 UTC25m
2026-05-11 KAPT605 - May 11, 15:55 UTCMay 11, 17:15 UTC1h 21m
2026-05-10 KAP926 BOS → PVC May 10, 17:30 UTCMay 10, 17:55 UTC25m
2026-05-09 KAP1850 RKD → BOS May 9, 12:45 UTCMay 9, 13:05 UTC20m
2026-05-08 KAP5050 BOS → RKD May 8, 22:25 UTCMay 8, 23:15 UTC50m
2026-05-08 KAP1856 RKD → BOS May 8, 20:55 UTCMay 8, 21:30 UTC35m
2026-05-08 KAP5050 BOS → RKD May 8, 17:45 UTCMay 8, 18:00 UTC15m
2026-05-08 KAP7021 HYA → BOS May 8, 16:15 UTCMay 8, 16:40 UTC25m

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 N945CA page for operator, model, and routing details .

Mode-S AD1FEE frequently asked

What is Mode-S code AD1FEE?
AD1FEE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N945CA.
Where is Mode-S AD1FEE registered?
Mode-S code AD1FEE 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 AD1FEE 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 AD1FEE, octal 53217756, decimal 11,345,902.
What flights does AD1FEE operate?
Mode-S AD1FEE has broadcast 20 distinct callsigns, including KAP5050, KAP1333, KAP1850, KAP82, KAP1856.