sensors Mode-S transponder

4246B3

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
4246B3
Octal
20443263
Decimal
4,343,475
Country
GB
Tail
VP-BAU
Type
B77L
No current signal · last broadcast 44m ago
Flights observed
122
Distinct callsigns
20
Country
GB
Last broadcast
44m ago

Last known position

Most recent position reported by Mode-S 4246B3.

Country allocation

The ICAO 24-bit address 4246B3 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
AZG1581 - 6 2026-05-22
AZG9934 Sakaviaservice 5 2026-05-27
AZG8892 - 5 2026-05-15
AZG6117 Sakaviaservice 5 2026-05-27
AZG9933 Sakaviaservice 4 2026-05-26
AZG783 Sakaviaservice 4 2026-04-19
AZG6118 Sakaviaservice 4 2026-05-28
AZG4881 Sakaviaservice 4 2026-05-23
AZG134 - 4 2026-05-14
AZG903 - 3 2026-04-13
AZG784 Sakaviaservice 3 2026-05-08
AZG6217 - 3 2026-05-01
AZG6177 - 3 2026-05-09
AZG534 Sakaviaservice 3 2026-05-25
AZG4871 Sakaviaservice 3 2026-05-13
AZG237 Sakaviaservice 3 2026-04-16
AZG207 Sakaviaservice 3 2026-05-15
AZG904 - 2 2026-04-13
AZG902 Sakaviaservice 2 2026-04-17
AZG901 - 2 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AZG692 HKG → GYD May 30, 02:00 UTCMay 30, 04:45 UTC2h 45m
2026-05-29 AZG692 HKG → GYD May 29, 23:35 UTCMay 29, 23:50 UTC15m
2026-05-29 AZG691 - May 29, 20:00 UTCMay 29, 20:20 UTC20m
2026-05-29 AZG274 - May 29, 00:45 UTCMay 29, 04:20 UTC3h 35m
2026-05-28 AZG273 JFK → MXP May 28, 17:40 UTCMay 28, 22:00 UTC4h 20m
2026-05-28 AZG232 HHN → GYD May 28, 09:25 UTCMay 28, 13:10 UTC3h 45m
2026-05-28 AZG6118 IAH → GYD May 28, 04:20 UTCMay 28, 05:55 UTC1h 35m
2026-05-27 AZG6117 IAH → LUX May 27, 20:45 UTCMay 28, 01:40 UTC4h 55m
2026-05-27 AZG9934 MAD → MAD May 27, 12:20 UTCMay 27, 17:20 UTC5h 0m
2026-05-26 AZG9933 GYD → MAD May 26, 20:54 UTCMay 27, 08:30 UTC11h 35m
2026-05-26 AZG9933 GYD → MAD May 26, 09:59 UTCMay 27, 08:30 UTC22h 30m
2026-05-25 AZG534 DAC → GYD May 25, 18:55 UTCMay 26, 10:05 UTC15h 10m
2026-05-25 AZG5334 DAC → DAC May 25, 03:20 UTCMay 25, 16:20 UTC13h 0m
2026-05-24 AZG5156 - May 24, 20:10 UTCMay 24, 21:00 UTC50m
2026-05-24 AZG4862 ORD → GYD May 24, 11:40 UTCMay 24, 16:55 UTC5h 15m
2026-05-23 AZG4862 ORD → GYD May 23, 22:00 UTCMay 24, 05:55 UTC7h 55m
2026-05-23 AZG4881 LGG → GYD May 23, 09:55 UTCMay 23, 18:35 UTC8h 41m
2026-05-22 AZG4881 LGG → GYD May 22, 17:45 UTCMay 23, 07:15 UTC13h 30m
2026-05-22 AZG1581 - May 22, 01:35 UTCMay 22, 13:35 UTC12h 0m
2026-05-20 AZG281 VIE → JFK May 20, 18:50 UTCMay 20, 22:00 UTC3h 10m
2026-05-20 AZG280 GYD → VIE May 20, 02:35 UTCMay 20, 15:05 UTC12h 31m
2026-05-19 AZG3637 DAC → DAC May 19, 09:50 UTCMay 19, 23:55 UTC14h 5m
2026-05-19 AZG3636 - May 19, 04:35 UTCMay 19, 07:25 UTC2h 50m
2026-05-16 AZG208 AMS → GYD May 16, 18:50 UTCMay 17, 18:35 UTC23h 45m
2026-05-16 AZG208 AMS → GYD May 16, 17:20 UTCMay 16, 21:30 UTC4h 10m
2026-05-15 AZG207 GYD → AMS May 15, 18:50 UTCMay 16, 14:20 UTC19h 31m
2026-05-15 AZG207 GYD → AMS May 15, 18:00 UTCMay 16, 14:20 UTC20h 21m
2026-05-15 AZG207 GYD → AMS May 15, 14:50 UTCMay 16, 14:20 UTC23h 31m
2026-05-15 AZG8892 - May 15, 14:25 UTCMay 16, 12:45 UTC22h 20m
2026-05-15 AZG8892 - May 15, 07:35 UTCMay 16, 02:55 UTC19h 19m
2026-05-15 AZG8891 GYD → SGN May 15, 02:05 UTCMay 16, 00:45 UTC22h 39m
2026-05-14 AZG134 - May 14, 16:50 UTCMay 15, 16:40 UTC23h 49m
2026-05-14 AZG134 - May 14, 15:50 UTCMay 15, 08:10 UTC16h 20m
2026-05-13 AZG8116 JFK → LGG May 13, 23:00 UTCMay 14, 13:15 UTC14h 15m
2026-05-13 AZG8116 JFK → LGG May 13, 13:05 UTCMay 13, 20:45 UTC7h 40m
2026-05-13 AZG4871 GYD → ORD May 13, 01:25 UTCMay 13, 10:20 UTC8h 55m
2026-05-12 AZG4871 GYD → ORD May 12, 04:50 UTCMay 12, 23:40 UTC18h 50m
2026-05-12 AZG4871 GYD → ORD May 12, 02:55 UTCMay 12, 23:40 UTC20h 45m
2026-05-11 AZG8582 - May 11, 14:50 UTCMay 12, 12:55 UTC22h 6m
2026-05-11 AZG8582 - May 11, 13:35 UTCMay 12, 12:45 UTC23h 11m
2026-05-11 AZG280 GYD → VIE May 11, 07:40 UTCMay 11, 11:10 UTC3h 30m
2026-05-09 AZG6178 - May 9, 23:44 UTCMay 10, 04:15 UTC4h 30m
2026-05-09 AZG6177 - May 9, 03:25 UTCMay 9, 20:20 UTC16h 55m
2026-05-08 AZG6177 - May 8, 23:10 UTCMay 9, 20:20 UTC21h 10m
2026-05-08 AZG6177 - May 8, 21:25 UTCMay 9, 20:20 UTC22h 55m
2026-05-08 AZG8892 - May 8, 17:40 UTCMay 9, 16:20 UTC22h 40m
2026-05-08 AZG8892 - May 8, 10:49 UTCMay 9, 07:35 UTC20h 45m
2026-05-08 AZG8892 - May 8, 08:49 UTCMay 9, 07:35 UTC22h 45m
2026-05-08 AZG784 ORD → GYD May 8, 08:40 UTCMay 9, 06:45 UTC22h 5m
2026-05-07 AZG784 ORD → GYD May 7, 21:50 UTCMay 8, 05:39 UTC7h 50m

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

Mode-S 4246B3 frequently asked

What is Mode-S code 4246B3?
4246B3 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-BAU.
Where is Mode-S 4246B3 registered?
Mode-S code 4246B3 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 4246B3 broadcasting right now?
No active broadcast right now. Last signal was 44m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4246B3, octal 20443263, decimal 4,343,475.
What flights does 4246B3 operate?
Mode-S 4246B3 has broadcast 20 distinct callsigns, including AZG1581, AZG9934, AZG8892, AZG6117, AZG9933.