sensors Mode-S transponder

4247E0

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VP-CIY · BOEING 737 MAX 8

Hex
4247E0
Octal
20443740
Decimal
4,343,776
Country
GB
Tail
VP-CIY
Type
B38M
No current signal · last broadcast 6h ago
Flights observed
150
Distinct callsigns
20
Country
GB
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4247E0.

Country allocation

The ICAO 24-bit address 4247E0 falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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
CAY795 Cayman Airways 14 2026-05-20
CAY107 - 14 2026-07-14
CAY106 - 13 2026-07-05
CAY481 - 12 2026-07-12
CAY794 Cayman Airways 11 2026-05-20
CAY200 - 10 2026-07-10
CAY202 Cayman Airways 9 2026-06-25
CAY852 - 8 2026-07-02
CAY480 - 8 2026-07-11
CAY102 Cayman Airways 8 2026-06-25
CAY793 - 7 2026-07-13
CAY203 Cayman Airways 6 2026-06-15
CAY201 - 5 2026-07-10
CAY330 Cayman Airways 4 2026-05-30
CAY104 Cayman Airways 4 2026-06-10
CAY103 Cayman Airways 4 2026-06-12
CAY122 Cayman Airways 3 2026-07-10
CAY105 Cayman Airways 3 2026-06-02
CAY792 - 2 2026-07-08
CAY331 Cayman Airways 2 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CAY107 - Jul 14, 00:40 UTCJul 14, 01:05 UTC25m
2026-07-13 CAY793 - Jul 13, 16:30 UTCJul 13, 22:50 UTC6h 20m
2026-07-12 CAY481 LAX → JFK Jul 12, 16:25 UTCJul 13, 02:50 UTC10h 25m
2026-07-11 CAY480 - Jul 11, 17:35 UTCJul 12, 02:25 UTC8h 50m
2026-07-10 CAY122 GCM → MIA Jul 10, 20:05 UTCJul 11, 15:10 UTC19h 5m
2026-07-10 CAY201 - Jul 10, 19:40 UTCJul 11, 15:10 UTC19h 30m
2026-07-10 CAY200 - Jul 10, 01:20 UTCJul 10, 18:30 UTC17h 10m
2026-07-09 CAY793 - Jul 9, 16:30 UTCJul 9, 23:05 UTC6h 35m
2026-07-08 CAY792 - Jul 8, 23:55 UTCJul 9, 02:25 UTC2h 30m
2026-07-06 CAY107 - Jul 6, 01:05 UTCJul 6, 01:35 UTC30m
2026-07-05 CAY106 - Jul 5, 22:30 UTCJul 5, 23:05 UTC35m
2026-07-04 CAY107 - Jul 4, 01:25 UTCJul 4, 01:55 UTC30m
2026-07-03 CAY106 - Jul 3, 22:40 UTCJul 3, 23:20 UTC40m
2026-07-02 CAY852 - Jul 2, 17:30 UTCJul 2, 21:15 UTC3h 45m
2026-06-30 CAY107 - Jun 30, 00:55 UTCJun 30, 01:19 UTC25m
2026-06-29 CAY793 - Jun 29, 16:35 UTCJun 29, 22:49 UTC6h 15m
2026-06-28 CAY481 - Jun 28, 16:19 UTCJun 29, 02:54 UTC10h 35m
2026-06-27 CAY480 - Jun 27, 17:34 UTCJun 28, 02:34 UTC9h 0m
2026-06-26 CAY122 GCM → MIA Jun 26, 20:04 UTCJun 27, 15:45 UTC19h 40m
2026-06-26 CAY201 - Jun 26, 19:39 UTCJun 27, 15:45 UTC20h 5m
2026-06-26 CAY200 GCM → TPA Jun 26, 17:40 UTCJun 26, 18:34 UTC55m
2026-06-25 CAY200 GCM → TPA Jun 25, 21:10 UTCJun 26, 18:34 UTC21h 25m
2026-06-25 CAY202 GCM → TPA Jun 25, 15:29 UTCJun 25, 19:54 UTC4h 25m
2026-06-25 CAY102 GCM → MIA Jun 25, 12:50 UTCJun 25, 13:20 UTC30m
2026-06-22 CAY852 - Jun 22, 17:40 UTCJun 22, 21:35 UTC3h 55m
2026-06-21 CAY481 LAX → GCM Jun 21, 22:04 UTCJun 22, 21:35 UTC23h 30m
2026-06-21 CAY481 LAX → GCM Jun 21, 20:05 UTCJun 22, 18:00 UTC21h 55m
2026-06-21 CAY481 LAX → GCM Jun 21, 18:04 UTCJun 22, 18:00 UTC23h 55m
2026-06-21 CAY481 LAX → GCM Jun 21, 17:54 UTCJun 21, 22:20 UTC4h 25m
2026-06-20 CAY480 GCM → LAX Jun 20, 19:09 UTCJun 21, 04:14 UTC9h 5m
2026-06-19 CAY201 TPA → GCM Jun 19, 19:54 UTCJun 20, 17:29 UTC21h 35m
2026-06-19 CAY200 GCM → TPA Jun 19, 17:44 UTCJun 19, 18:44 UTC1h 0m
2026-06-18 CAY200 GCM → TPA Jun 18, 21:10 UTCJun 19, 18:44 UTC21h 34m
2026-06-18 CAY852 - Jun 18, 17:21 UTCJun 18, 21:25 UTC4h 4m
2026-06-15 CAY203 TPA → GCM Jun 15, 20:34 UTCJun 15, 21:25 UTC50m
2026-06-15 CAY202 GCM → TPA Jun 15, 15:10 UTCJun 15, 19:30 UTC4h 20m
2026-06-14 CAY203 TPA → GCM Jun 14, 20:40 UTCJun 15, 13:15 UTC16h 35m
2026-06-14 CAY202 GCM → TPA Jun 14, 15:25 UTCJun 14, 19:15 UTC3h 50m
2026-06-13 CAY201 TPA → GCM Jun 13, 19:25 UTCJun 14, 13:20 UTC17h 55m
2026-06-13 CAY200 GCM → TPA Jun 13, 17:10 UTCJun 13, 18:05 UTC55m
2026-06-12 CAY103 MIA → GCM Jun 12, 15:20 UTCJun 12, 15:50 UTC30m
2026-06-12 CAY107 MIA → GCM Jun 12, 00:45 UTCJun 12, 13:20 UTC12h 35m
2026-06-11 CAY793 JFK → GCM Jun 11, 16:35 UTCJun 11, 23:00 UTC6h 25m
2026-06-10 CAY792 GCM → JFK Jun 10, 19:35 UTCJun 11, 02:45 UTC7h 10m
2026-06-10 CAY104 GCM → MIA Jun 10, 17:15 UTCJun 10, 17:45 UTC30m
2026-06-09 CAY107 MIA → GCM Jun 9, 00:50 UTCJun 9, 01:10 UTC20m
2026-06-08 CAY106 GCM → MIA Jun 8, 22:35 UTCJun 8, 23:05 UTC30m
2026-06-08 CAY793 JFK → GCM Jun 8, 17:50 UTCJun 8, 18:45 UTC55m
2026-06-08 CAY793 JFK → GCM Jun 8, 16:10 UTCJun 8, 17:20 UTC1h 10m
2026-06-07 CAY481 LAX → GCM Jun 7, 15:50 UTCJun 8, 03:00 UTC11h 10m

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 VP-CIY page for operator, model, and routing details .

Mode-S 4247E0 frequently asked

What is Mode-S code 4247E0?
4247E0 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-CIY.
Where is Mode-S 4247E0 registered?
Mode-S code 4247E0 is allocated to United Kingdom (GB). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4247E0 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 4247E0, octal 20443740, decimal 4,343,776.
What flights does 4247E0 operate?
Mode-S 4247E0 has broadcast 20 distinct callsigns, including CAY795, CAY107, CAY106, CAY481, CAY794.