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 AZG621 · 32,000 ft
Flights observed
231
Distinct callsigns
20
Country
GB
Last broadcast
54m 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 20 distinct

Callsign Airline Flights Last seen
AZG6117 - 10 2026-06-28
AZG8891 Sakaviaservice 9 2026-06-07
AZG4861 - 8 2026-06-30
AZG4862 Sakaviaservice 7 2026-04-17
AZG785 Sakaviaservice 6 2026-04-16
AZG6118 - 6 2026-06-28
AZG4882 Sakaviaservice 6 2026-06-13
AZG4881 - 6 2026-06-12
AZG9933 - 5 2026-07-09
AZG624 - 5 2026-07-13
AZG6177 - 5 2026-06-26
AZG6157 - 5 2026-07-10
AZG7711 - 4 2026-06-21
AZG6137 - 4 2026-07-01
AZG4871 Sakaviaservice 4 2026-06-10
AZG290 - 4 2026-06-19
AZG276 - 4 2026-06-27
AZG274 - 4 2026-07-02
AZG205 - 4 2026-07-07
AZG995 - 3 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AZG621 - Jul 13, 22:20 UTCJul 14, 02:45 UTC4h 25m
2026-07-13 AZG624 ZGN → HKG Jul 13, 18:30 UTCJul 13, 18:50 UTC20m
2026-07-13 AZG624 - Jul 13, 15:00 UTCJul 13, 16:50 UTC1h 50m
2026-07-13 AZG624 - Jul 13, 13:35 UTCJul 13, 13:45 UTC10m
2026-07-13 AZG3321 - Jul 13, 10:35 UTCJul 13, 10:55 UTC20m
2026-07-12 AZG1011 - Jul 12, 03:35 UTCJul 12, 03:55 UTC20m
2026-07-12 AZG1010 - Jul 12, 00:55 UTCJul 12, 01:30 UTC35m
2026-07-11 AZG996 - Jul 11, 14:45 UTCJul 11, 19:20 UTC4h 35m
2026-07-11 AZG6158 - Jul 11, 06:50 UTCJul 11, 07:30 UTC40m
2026-07-10 AZG6157 - Jul 10, 10:55 UTCJul 11, 04:55 UTC18h 0m
2026-07-10 AZG6157 - Jul 10, 08:50 UTCJul 11, 04:55 UTC20h 5m
2026-07-10 AZG6157 - Jul 10, 08:15 UTCJul 11, 04:55 UTC20h 40m
2026-07-09 AZG9934 MAD → NRT Jul 9, 09:30 UTCJul 10, 04:45 UTC19h 15m
2026-07-09 AZG9933 - Jul 9, 00:20 UTCJul 9, 05:35 UTC5h 15m
2026-07-08 AZG9933 - Jul 8, 05:55 UTCJul 9, 04:45 UTC22h 50m
2026-07-07 AZG206 - Jul 7, 17:35 UTCJul 7, 21:30 UTC3h 55m
2026-07-07 AZG205 - Jul 7, 00:10 UTCJul 7, 13:20 UTC13h 10m
2026-07-06 AZG625 HKG → HKG Jul 6, 22:00 UTCJul 6, 22:20 UTC20m
2026-07-06 AZG624 - Jul 6, 15:25 UTCJul 6, 19:20 UTC3h 55m
2026-07-06 AZG624 - Jul 6, 14:00 UTCJul 6, 14:10 UTC10m
2026-07-06 AZG3321 - Jul 6, 08:20 UTCJul 6, 08:55 UTC35m
2026-07-05 AZG534 - Jul 5, 12:50 UTCJul 6, 07:30 UTC18h 40m
2026-07-05 AZG534 - Jul 5, 12:10 UTCJul 6, 07:30 UTC19h 20m
2026-07-04 AZG278 MXP → DAC Jul 4, 21:25 UTCJul 5, 10:15 UTC12h 50m
2026-07-04 AZG6158 ZAZ → MXP Jul 4, 04:35 UTCJul 4, 17:50 UTC13h 15m
2026-07-03 AZG6157 - Jul 3, 20:15 UTCJul 4, 01:15 UTC5h 0m
2026-07-02 AZG334 - Jul 2, 18:15 UTCJul 2, 20:45 UTC2h 30m
2026-07-02 AZG274 MXP → DAC Jul 2, 04:05 UTCJul 2, 16:05 UTC12h 0m
2026-07-01 AZG273 - Jul 1, 23:35 UTCJul 2, 01:05 UTC1h 30m
2026-07-01 AZG6137 - Jul 1, 07:30 UTCJul 1, 20:15 UTC12h 45m
2026-06-30 AZG4872 ORD → EMA Jun 30, 22:35 UTCJul 1, 05:30 UTC6h 55m
2026-06-30 AZG4861 - Jun 30, 07:05 UTCJun 30, 15:30 UTC8h 25m
2026-06-30 AZG4861 - Jun 30, 00:55 UTCJun 30, 04:55 UTC4h 1m
2026-06-29 AZG3822 - Jun 29, 17:10 UTCJun 29, 20:59 UTC3h 50m
2026-06-28 AZG6118 - Jun 28, 21:45 UTCJun 29, 11:25 UTC13h 40m
2026-06-28 AZG6117 - Jun 28, 03:25 UTCJun 28, 18:55 UTC15h 30m
2026-06-27 AZG6117 - Jun 27, 22:49 UTCJun 28, 18:55 UTC20h 5m
2026-06-27 AZG6117 - Jun 27, 20:49 UTCJun 28, 18:55 UTC22h 5m
2026-06-27 AZG2891 - Jun 27, 18:45 UTCJun 28, 16:45 UTC22h 0m
2026-06-27 AZG276 - Jun 27, 06:59 UTCJun 27, 10:34 UTC3h 35m
2026-06-27 AZG6178 - Jun 27, 00:50 UTCJun 27, 02:14 UTC1h 25m
2026-06-26 AZG6177 - Jun 26, 08:45 UTCJun 26, 22:40 UTC13h 55m
2026-06-26 AZG6157 - Jun 26, 00:35 UTCJun 26, 05:24 UTC4h 50m
2026-06-25 AZG1224 - Jun 25, 18:19 UTCJun 25, 20:05 UTC1h 45m
2026-06-25 AZG1223 - Jun 25, 05:25 UTCJun 25, 16:29 UTC11h 5m
2026-06-24 AZG5951 GYD → ATL Jun 24, 16:34 UTCJun 25, 01:44 UTC9h 10m
2026-06-23 AZG5951 GYD → ATL Jun 23, 23:14 UTCJun 24, 12:40 UTC13h 25m
2026-06-23 AZG1148 HKG → HKG Jun 23, 20:24 UTCJun 23, 20:40 UTC15m
2026-06-23 AZG1147 TAS → GYD Jun 23, 09:05 UTCJun 23, 17:20 UTC8h 15m
2026-06-23 AZG8588 - Jun 23, 01:00 UTCJun 23, 04:45 UTC3h 45m

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 20 distinct callsigns, including AZG6117, AZG8891, AZG4861, AZG4862, AZG785.