sensors Mode-S transponder

4246A3

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VP-BMU · BOEING 777-200LR

Hex
4246A3
Octal
20443243
Decimal
4,343,459
Country
GB
Tail
VP-BMU
Type
B77L
Broadcasting now · callsign AZG4882 · 31,000 ft
Flights observed
15
Distinct callsigns
4
Country
GB
Last broadcast
16h ago

Current position

4246A3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4246A3 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 4 distinct

Callsign Airline Flights Last seen
AZG4861 - 6 2026-04-14
AZG6118 - 4 2026-04-13
AZG6117 Sakaviaservice 4 2026-04-13
AZG6162 - 1 2026-04-12

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 AZG4861 - Apr 14, 05:40 UTCApr 14, 07:05 UTC1h 25m
2026-04-13 AZG4861 - Apr 13, 21:55 UTCApr 13, 23:30 UTC1h 35m
2026-04-13 AZG4861 - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 AZG4861 - Apr 13, 16:15 UTCApr 13, 19:55 UTC3h 40m
2026-04-13 AZG4861 - Apr 13, 15:50 UTCApr 13, 19:45 UTC3h 55m
2026-04-13 AZG4861 - Apr 13, 15:40 UTCApr 13, 16:15 UTC35m
2026-04-13 AZG6118 - Apr 13, 11:55 UTCApr 13, 15:50 UTC3h 55m
2026-04-13 AZG6118 - Apr 13, 08:20 UTCApr 13, 12:15 UTC3h 55m
2026-04-13 AZG6118 - Apr 13, 07:55 UTCApr 13, 10:35 UTC2h 40m
2026-04-13 AZG6118 - Apr 13, 07:40 UTCApr 13, 08:15 UTC35m
2026-04-13 AZG6117 IAH → LUX Apr 13, 04:20 UTCApr 13, 05:15 UTC55m
2026-04-13 AZG6117 IAH → LUX Apr 13, 03:55 UTCApr 13, 05:15 UTC1h 20m
2026-04-13 AZG6117 IAH → LUX Apr 13, 00:20 UTCApr 13, 04:15 UTC3h 55m
2026-04-13 AZG6117 IAH → LUX Apr 13, 00:10 UTCApr 13, 03:50 UTC3h 40m
2026-04-12 AZG6162 - Apr 12, 17:15 UTCApr 12, 17:45 UTC30m

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

Mode-S 4246A3 frequently asked

What is Mode-S code 4246A3?
4246A3 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-BMU.
Where is Mode-S 4246A3 registered?
Mode-S code 4246A3 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 4246A3 broadcasting right now?
Yes. Mode-S 4246A3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4246A3, octal 20443243, decimal 4,343,459.
What flights does 4246A3 operate?
Mode-S 4246A3 has broadcast 4 distinct callsigns, including AZG4861, AZG6118, AZG6117, AZG6162.