Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4070FF

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-VINT · SIKORSKY S-92 Helibus

Hex
4070FF
Octal
20070377
Decimal
4,223,231
Country
GB
Tail
G-VINT
Type
S92
No current signal · last broadcast 8d ago
Flights observed
114
Distinct callsigns
20
Country
GB
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 4070FF.

Country allocation

The ICAO 24-bit address 4070FF 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
ULR97T - 19 2026-07-16
ULR94Y - 16 2026-07-15
ULR91R - 12 2026-07-17
ULR95K - 9 2026-07-03
ULR95Z - 8 2026-07-14
ULR85A - 6 2026-07-20
ULR99A - 5 2026-07-16
ULR414A - 5 2026-07-20
ULR96G - 4 2026-07-14
ULR99B - 3 2026-07-14
ULR96M - 3 2026-07-13
ULR86X - 3 2026-07-20
ULR95G - 2 2026-07-07
ULR92T - 2 2026-06-18
ULR91N - 2 2026-07-17
ULR88F - 2 2026-07-10
ULR87Z - 2 2026-07-05
ULR86L - 2 2026-07-05
ULR84S - 2 2026-06-25
ULR414B - 2 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 ULR414B - Jul 21, 17:55 UTCJul 21, 18:10 UTC15m
2026-07-20 ULR414A - Jul 20, 15:55 UTCJul 20, 16:15 UTC20m
2026-07-20 ULR86X - Jul 20, 12:55 UTCJul 20, 13:25 UTC30m
2026-07-20 ULR86X - Jul 20, 10:15 UTCJul 20, 10:55 UTC40m
2026-07-20 ULR85A - Jul 20, 08:30 UTCJul 20, 09:05 UTC35m
2026-07-20 ULR85A - Jul 20, 06:40 UTCJul 20, 07:20 UTC40m
2026-07-17 ULR91N - Jul 17, 14:04 UTCJul 17, 14:30 UTC25m
2026-07-17 ULR91N - Jul 17, 12:45 UTCJul 17, 13:25 UTC40m
2026-07-17 ULR91R - Jul 17, 11:35 UTCJul 17, 11:50 UTC15m
2026-07-17 ULR91R - Jul 17, 09:25 UTCJul 17, 10:20 UTC55m
2026-07-17 ULR91R - Jul 17, 07:14 UTCJul 17, 07:35 UTC20m
2026-07-16 ULR99A - Jul 16, 17:30 UTCJul 16, 17:54 UTC25m
2026-07-16 ULR99A - Jul 16, 12:34 UTCJul 16, 13:10 UTC35m
2026-07-16 ULR97T - Jul 16, 08:45 UTCJul 16, 10:25 UTC1h 40m
2026-07-16 ULR97T - Jul 16, 06:35 UTCJul 16, 08:10 UTC1h 35m
2026-07-15 ULR99A - Jul 15, 19:40 UTCJul 15, 19:50 UTC10m
2026-07-15 ULR99A - Jul 15, 15:15 UTCJul 15, 15:50 UTC35m
2026-07-15 ULR94Y - Jul 15, 12:55 UTCJul 15, 14:25 UTC1h 30m
2026-07-15 ULR97T - Jul 15, 06:20 UTCJul 15, 12:20 UTC6h 0m
2026-07-14 ULR99B - Jul 14, 19:30 UTCJul 14, 19:40 UTC10m
2026-07-14 ULR99B - Jul 14, 15:30 UTCJul 14, 16:50 UTC1h 20m
2026-07-14 ULR96G - Jul 14, 13:25 UTCJul 14, 13:55 UTC30m
2026-07-14 ULR96G - Jul 14, 12:00 UTCJul 14, 12:35 UTC35m
2026-07-14 ULR95Z - Jul 14, 10:15 UTCJul 14, 10:40 UTC25m
2026-07-14 ULR95Z - Jul 14, 07:10 UTCJul 14, 07:45 UTC35m
2026-07-13 ULR96M - Jul 13, 18:55 UTCJul 13, 19:10 UTC15m
2026-07-13 ULR96M - Jul 13, 17:25 UTCJul 13, 17:35 UTC10m
2026-07-13 ULR96M - Jul 13, 13:35 UTCJul 13, 14:05 UTC30m
2026-07-13 ULR91R - Jul 13, 11:20 UTCJul 13, 12:00 UTC40m
2026-07-13 ULR91R - Jul 13, 07:15 UTCJul 13, 07:50 UTC35m
2026-07-11 ULR86X - Jul 11, 16:35 UTCJul 11, 17:05 UTC30m
2026-07-11 ULR85A - Jul 11, 12:30 UTCJul 11, 14:25 UTC1h 55m
2026-07-11 ULR85A - Jul 11, 10:25 UTCJul 11, 11:10 UTC45m
2026-07-10 ULR88F - Jul 10, 15:40 UTCJul 10, 16:10 UTC30m
2026-07-10 ULR88F - Jul 10, 14:25 UTCJul 10, 15:00 UTC35m
2026-07-09 ULR85A - Jul 9, 18:00 UTCJul 9, 18:35 UTC35m
2026-07-09 ULR85A - Jul 9, 16:15 UTCJul 9, 17:00 UTC45m
2026-07-09 ULR94Y - Jul 9, 13:10 UTCJul 9, 14:30 UTC1h 20m
2026-07-09 ULR94Y - Jul 9, 10:55 UTCJul 9, 12:15 UTC1h 20m
2026-07-09 ULR97T - Jul 9, 08:05 UTCJul 9, 09:15 UTC1h 10m
2026-07-09 ULR97T - Jul 9, 05:55 UTCJul 9, 07:10 UTC1h 15m
2026-07-08 ULR94Y - Jul 8, 12:55 UTCJul 8, 14:00 UTC1h 5m
2026-07-08 ULR94Y - Jul 8, 10:30 UTCJul 8, 11:25 UTC55m
2026-07-08 ULR97T - Jul 8, 08:30 UTCJul 8, 09:30 UTC1h 0m
2026-07-08 ULR97T - Jul 8, 06:05 UTCJul 8, 07:00 UTC55m
2026-07-07 ULR95G - Jul 7, 17:05 UTCJul 7, 17:45 UTC40m
2026-07-07 ULR95G - Jul 7, 15:15 UTCJul 7, 15:50 UTC35m
2026-07-07 ULR94Y - Jul 7, 13:05 UTCJul 7, 14:35 UTC1h 30m
2026-07-07 ULR94Y - Jul 7, 10:45 UTCJul 7, 11:40 UTC55m
2026-07-07 ULR97T - Jul 7, 08:30 UTCJul 7, 09:40 UTC1h 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 G-VINT page for operator, model, and routing details .

Mode-S 4070FF frequently asked

What is Mode-S code 4070FF?
4070FF is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VINT.
Where is Mode-S 4070FF registered?
Mode-S code 4070FF 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 4070FF broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4070FF, octal 20070377, decimal 4,223,231.
What flights does 4070FF operate?
Mode-S 4070FF has broadcast 20 distinct callsigns, including ULR97T, ULR94Y, ULR91R, ULR95K, ULR95Z.