sensors Mode-S transponder

151D6A

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73066 · BOEING 737-400

Hex
151D6A
Octal
05216552
Decimal
1,383,786
Country
RU
Tail
RA-73066
Type
B734
No current signal · last broadcast 9h ago
Flights observed
99
Distinct callsigns
20
Country
RU
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 151D6A.

Country allocation

The ICAO 24-bit address 151D6A falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia 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
UTA103 UTair Aviation 19 2026-05-16
UTA185 UTair Aviation 13 2026-05-22
UTA364 UTair Aviation 6 2026-05-10
UTA104 UTair Aviation 6 2026-05-15
UTA6127 UTair Aviation 4 2026-06-01
UTA186 UTair Aviation 4 2026-05-15
UTA6128 UTair Aviation 3 2026-06-02
UTA412 UTair Aviation 3 2026-05-27
UTA152 UTair Aviation 3 2026-05-24
UTA6191 UTair Aviation 2 2026-05-16
UTA6185 UTair Aviation 2 2026-05-21
UTA574 UTair Aviation 2 2026-05-11
UTA573 UTair Aviation 2 2026-05-07
UTA374 UTair Aviation 2 2026-05-02
UTA295 UTair Aviation 2 2026-05-08
UTA250 UTair Aviation 2 2026-05-11
UTA249 UTair Aviation 2 2026-05-11
UTA744 UTair Aviation 1 2026-05-03
UTA743 UTair Aviation 1 2026-05-03
UTA6192 UTair Aviation 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 UTA6128 SGC → UFA Jun 2, 17:20 UTCJun 3, 00:35 UTC7h 15m
2026-06-01 UTA6127 UFA → SGC Jun 1, 22:50 UTCJun 2, 17:25 UTC18h 35m
2026-06-01 UTA6110 - Jun 1, 14:20 UTCJun 1, 22:55 UTC8h 35m
2026-05-27 UTA412 KUF → SGC May 27, 20:40 UTCMay 28, 16:30 UTC19h 50m
2026-05-27 UTA412 KUF → SGC May 27, 20:00 UTCMay 28, 16:30 UTC20h 30m
2026-05-27 UTA412 KUF → SGC May 27, 16:45 UTCMay 28, 16:30 UTC23h 45m
2026-05-25 UTA6138 IJK → UFA May 25, 19:54 UTCMay 26, 14:09 UTC18h 15m
2026-05-24 UTA152 NJC → UFA May 24, 12:40 UTCMay 24, 17:05 UTC4h 25m
2026-05-23 UTA152 NJC → UFA May 23, 18:35 UTCMay 24, 17:05 UTC22h 30m
2026-05-23 UTA6114 HMA → UFA May 23, 18:25 UTCMay 24, 12:45 UTC18h 20m
2026-05-22 UTA6113 UFA → HMA May 22, 21:30 UTCMay 23, 18:35 UTC21h 5m
2026-05-22 UTA185 UFA → NUX May 22, 04:35 UTCMay 22, 21:40 UTC17h 5m
2026-05-21 UTA185 UFA → NUX May 21, 16:40 UTCMay 22, 13:15 UTC20h 35m
2026-05-21 UTA185 UFA → NUX May 21, 14:00 UTCMay 22, 08:30 UTC18h 30m
2026-05-21 UTA6185 UFA → NOJ May 21, 09:30 UTCMay 22, 08:30 UTC23h 0m
2026-05-21 UTA6185 UFA → NOJ May 21, 06:55 UTCMay 22, 04:40 UTC21h 45m
2026-05-19 UTA6128 SGC → UFA May 19, 16:50 UTCMay 20, 05:05 UTC12h 16m
2026-05-18 UTA6192 NOJ → KUF May 18, 07:40 UTCMay 18, 16:30 UTC8h 50m
2026-05-16 UTA6191 KUF → NOJ May 16, 13:31 UTCMay 17, 08:00 UTC18h 30m
2026-05-16 UTA6191 KUF → NOJ May 16, 08:36 UTCMay 17, 08:00 UTC23h 25m
2026-05-16 UTA103 SGC → UFA May 16, 04:20 UTCMay 16, 13:35 UTC9h 16m
2026-05-15 UTA104 UFA → SGC May 15, 16:20 UTCMay 16, 13:35 UTC21h 16m
2026-05-15 UTA186 NUX → UFA May 15, 13:10 UTCMay 16, 08:41 UTC19h 30m
2026-05-15 UTA185 UFA → NUX May 15, 08:20 UTCMay 16, 04:30 UTC20h 9m
2026-05-15 UTA103 SGC → UFA May 15, 04:35 UTCMay 16, 04:30 UTC23h 54m
2026-05-15 UTA103 SGC → UFA May 15, 04:25 UTCMay 15, 16:25 UTC11h 59m
2026-05-14 UTA103 SGC → UFA May 14, 16:20 UTCMay 15, 13:15 UTC20h 55m
2026-05-14 UTA103 SGC → UFA May 14, 13:01 UTCMay 15, 08:30 UTC19h 30m
2026-05-14 UTA103 SGC → UFA May 14, 08:25 UTCMay 15, 04:35 UTC20h 10m
2026-05-14 UTA103 SGC → UFA May 14, 04:40 UTCMay 15, 04:30 UTC23h 50m
2026-05-13 UTA104 UFA → SGC May 13, 16:25 UTCMay 14, 13:05 UTC20h 40m
2026-05-13 UTA104 UFA → SGC May 13, 13:31 UTCMay 14, 08:30 UTC19h 0m
2026-05-13 UTA185 UFA → NUX May 13, 08:40 UTCMay 14, 08:30 UTC23h 50m
2026-05-13 UTA185 UFA → NUX May 13, 04:25 UTCMay 13, 16:30 UTC12h 5m
2026-05-12 UTA247 VKO → SGC May 12, 18:55 UTCMay 13, 16:30 UTC21h 35m
2026-05-12 UTA398 GDZ → VKO May 12, 14:10 UTCMay 12, 17:00 UTC2h 50m
2026-05-12 UTA397 VKO → GDZ May 12, 09:35 UTCMay 12, 12:50 UTC3h 15m
2026-05-11 UTA574 MRV → VKO May 11, 21:50 UTCMay 12, 05:10 UTC7h 20m
2026-05-11 UTA250 AER → VKO May 11, 12:50 UTCMay 11, 15:50 UTC3h 0m
2026-05-11 UTA249 VKO → AER May 11, 07:55 UTCMay 11, 11:15 UTC3h 20m
2026-05-10 UTA364 UFA → VKO May 10, 23:09 UTCMay 11, 05:20 UTC6h 10m
2026-05-08 UTA296 SGC → VKO May 8, 16:10 UTCMay 8, 16:55 UTC45m
2026-05-08 UTA295 VKO → SGC May 8, 08:59 UTCMay 8, 15:35 UTC6h 35m
2026-05-07 UTA574 MRV → VKO May 7, 16:35 UTCMay 7, 18:00 UTC1h 25m
2026-05-07 UTA573 VKO → MRV May 7, 01:00 UTCMay 7, 01:10 UTC10m
2026-05-06 UTA573 VKO → MRV May 6, 21:50 UTCMay 6, 23:05 UTC1h 15m
2026-05-06 UTA355 VKO → GRV May 6, 04:10 UTCMay 6, 15:00 UTC10h 50m
2026-05-05 UTA250 AER → VKO May 5, 21:15 UTCMay 6, 00:01 UTC2h 45m
2026-05-05 UTA249 VKO → AER May 5, 07:40 UTCMay 5, 10:50 UTC3h 10m
2026-05-05 UTA248 SGC → VKO May 5, 05:00 UTCMay 5, 05:25 UTC25m

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 RA-73066 page for operator, model, and routing details .

Mode-S 151D6A frequently asked

What is Mode-S code 151D6A?
151D6A is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73066.
Where is Mode-S 151D6A registered?
Mode-S code 151D6A is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D6A broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D6A, octal 05216552, decimal 1,383,786.
What flights does 151D6A operate?
Mode-S 151D6A has broadcast 20 distinct callsigns, including UTA103, UTA185, UTA364, UTA104, UTA6127.