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sensors Mode-S transponder

4246B5

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VP-BBK · AIRBUS A-320neo

Hex
4246B5
Octal
20443265
Decimal
4,343,477
Country
GB
Tail
VP-BBK
Type
A20N
Broadcasting now · callsign AHY064 · 37,000 ft
Flights observed
204
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Current position

4246B5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4246B5 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
AHY107 - 54 2026-07-12
AHY045 - 41 2026-07-11
AHY108 - 24 2026-07-13
AHY046 - 23 2026-07-11
AHY8238 - 5 2026-06-16
AHY035 - 5 2026-07-09
AHY8237 - 4 2026-06-16
AHY025 - 4 2026-06-16
AHY8050 Azerbaijan Airlines 3 2026-05-18
AHY036 - 3 2026-07-10
AHY027 - 3 2026-06-19
AHY8226 - 2 2026-06-16
AHY8105 - 2 2026-06-20
AHY077 - 2 2026-07-09
AHY033 - 2 2026-06-30
AHY028 - 2 2026-06-19
AHY026 - 2 2026-06-16
AHY8234 Azerbaijan Airlines 1 2026-05-14
AHY8230 Azerbaijan Airlines 1 2026-05-29
AHY8229 Azerbaijan Airlines 1 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AHY108 LGW → BER Jul 13, 11:35 UTCJul 14, 08:15 UTC20h 40m
2026-07-12 AHY107 - Jul 12, 14:25 UTCJul 13, 09:15 UTC18h 50m
2026-07-12 AHY107 - Jul 12, 11:20 UTCJul 13, 09:15 UTC21h 55m
2026-07-12 AHY107 BCN → LGW Jul 12, 10:20 UTCJul 13, 09:15 UTC22h 55m
2026-07-11 AHY045 - Jul 11, 22:40 UTCJul 12, 08:35 UTC9h 55m
2026-07-11 AHY2255 - Jul 11, 20:40 UTCJul 11, 21:00 UTC20m
2026-07-11 AHY046 - Jul 11, 10:10 UTCJul 11, 14:20 UTC4h 10m
2026-07-11 AHY045 - Jul 11, 03:05 UTCJul 11, 08:30 UTC5h 25m
2026-07-10 AHY322 - Jul 10, 22:10 UTCJul 11, 00:15 UTC2h 5m
2026-07-10 AHY036 MXP → TLV Jul 10, 10:15 UTCJul 10, 20:50 UTC10h 35m
2026-07-09 AHY035 - Jul 9, 20:25 UTCJul 10, 08:15 UTC11h 50m
2026-07-09 AHY077 - Jul 9, 18:30 UTCJul 9, 18:50 UTC20m
2026-07-09 AHY036 - Jul 9, 10:05 UTCJul 9, 17:45 UTC7h 40m
2026-07-08 AHY035 - Jul 8, 13:20 UTCJul 9, 08:15 UTC18h 55m
2026-07-08 AHY035 - Jul 8, 11:20 UTCJul 9, 08:15 UTC20h 55m
2026-07-08 AHY107 - Jul 8, 04:00 UTCJul 8, 09:40 UTC5h 40m
2026-07-07 AHY107 - Jul 7, 14:00 UTCJul 8, 09:40 UTC19h 40m
2026-07-07 AHY107 VIE → LGW Jul 7, 11:25 UTCJul 8, 09:40 UTC22h 15m
2026-07-06 AHY071 - Jul 6, 22:55 UTCJul 7, 09:45 UTC10h 50m
2026-07-06 AHY036 MXP → BOM Jul 6, 09:50 UTCJul 6, 21:20 UTC11h 30m
2026-07-06 AHY035 - Jul 6, 03:35 UTCJul 6, 08:05 UTC4h 30m
2026-07-05 AHY046 - Jul 5, 11:10 UTCJul 5, 15:30 UTC4h 20m
2026-07-04 AHY045 TBS → BCN Jul 4, 18:15 UTCJul 5, 09:20 UTC15h 5m
2026-07-04 AHY8225 - Jul 4, 16:30 UTCJul 4, 17:00 UTC30m
2026-07-04 AHY122 - Jul 4, 11:45 UTCJul 4, 13:50 UTC2h 5m
2026-07-04 AHY121 LHE → TLV Jul 4, 01:10 UTCJul 4, 10:25 UTC9h 15m
2026-07-03 AHY108 - Jul 3, 12:05 UTCJul 3, 23:40 UTC11h 35m
2026-07-02 AHY107 - Jul 2, 23:40 UTCJul 3, 10:35 UTC10h 55m
2026-07-02 AHY046 BCN → ADJ Jul 2, 10:30 UTCJul 2, 22:10 UTC11h 40m
2026-07-01 AHY045 - Jul 1, 13:25 UTCJul 2, 08:25 UTC19h 0m
2026-07-01 AHY045 - Jul 1, 11:20 UTCJul 2, 08:25 UTC21h 5m
2026-07-01 AHY045 MXP → BCN Jul 1, 09:55 UTCJul 2, 08:25 UTC22h 30m
2026-06-30 AHY035 - Jun 30, 20:30 UTCJul 1, 07:55 UTC11h 25m
2026-06-30 AHY034 - Jun 30, 11:20 UTCJun 30, 19:00 UTC7h 40m
2026-06-30 AHY033 - Jun 30, 00:30 UTCJun 30, 09:25 UTC8h 55m
2026-06-29 AHY108 LGW → DEL Jun 29, 10:55 UTCJun 29, 22:19 UTC11h 25m
2026-06-28 AHY107 - Jun 28, 13:19 UTCJun 29, 09:10 UTC19h 50m
2026-06-28 AHY107 - Jun 28, 11:19 UTCJun 29, 09:10 UTC21h 50m
2026-06-28 AHY107 LGW → LGW Jun 28, 11:00 UTCJun 29, 09:10 UTC22h 10m
2026-06-27 AHY107 - Jun 27, 14:09 UTCJun 28, 09:05 UTC18h 55m
2026-06-27 AHY107 - Jun 27, 11:20 UTCJun 28, 09:05 UTC21h 45m
2026-06-27 AHY107 BCN → LGW Jun 27, 10:00 UTCJun 28, 09:05 UTC23h 5m
2026-06-26 AHY045 - Jun 26, 14:35 UTCJun 27, 08:14 UTC17h 40m
2026-06-26 AHY125 - Jun 26, 06:54 UTCJun 26, 13:19 UTC6h 25m
2026-06-25 AHY046 BCN → AYT Jun 25, 10:30 UTCJun 26, 04:50 UTC18h 20m
2026-06-24 AHY045 - Jun 24, 13:20 UTCJun 25, 08:30 UTC19h 10m
2026-06-24 AHY045 - Jun 24, 11:20 UTCJun 25, 08:30 UTC21h 10m
2026-06-24 AHY045 LGW → BCN Jun 24, 10:35 UTCJun 25, 08:30 UTC21h 55m
2026-06-24 AHY107 - Jun 24, 04:00 UTCJun 24, 09:09 UTC5h 10m
2026-06-23 AHY046 - Jun 23, 09:54 UTCJun 23, 14:35 UTC4h 40m

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-BBK page for operator, model, and routing details .

Mode-S 4246B5 frequently asked

What is Mode-S code 4246B5?
4246B5 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-BBK.
Where is Mode-S 4246B5 registered?
Mode-S code 4246B5 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 4246B5 broadcasting right now?
Yes. Mode-S 4246B5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4246B5, octal 20443265, decimal 4,343,477.
What flights does 4246B5 operate?
Mode-S 4246B5 has broadcast 20 distinct callsigns, including AHY107, AHY045, AHY108, AHY046, AHY8238.