sensors Mode-S transponder

151E8A

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73354 · BOEING 757-200

Hex
151E8A
Octal
05217212
Decimal
1,384,074
Country
RU
Tail
RA-73354
Type
B752
No current signal · last broadcast 18h ago
Flights observed
55
Distinct callsigns
20
Country
RU
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 151E8A.

Country allocation

The ICAO 24-bit address 151E8A 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
TUP9632 - 7 2026-05-18
TUP9628 - 5 2026-06-01
TUP9627 Aviastar-TU 4 2026-05-28
TUP9626 - 4 2026-04-30
TUP9625 - 4 2026-05-13
TUP6420 - 4 2026-05-26
TUP9634 - 3 2026-05-02
TUP9633 - 3 2026-05-15
TUP9631 - 3 2026-04-19
TUP6454 - 3 2026-05-24
TUP9688 - 2 2026-05-20
TUP9648 - 2 2026-04-14
TUP9619 - 2 2026-04-22
TUP6488 - 2 2026-04-17
TUP9647 - 1 2026-04-13
TUP9643 - 1 2026-05-27
TUP9630 - 1 2026-05-08
TUP9629 - 1 2026-05-06
TUP9622 - 1 2026-05-05
TUP9617 - 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 TUP9628 - Jun 1, 22:20 UTCJun 2, 12:25 UTC14h 5m
2026-05-28 TUP9627 NJC → VKO May 28, 23:50 UTCMay 29, 00:10 UTC20m
2026-05-27 TUP9643 - May 27, 03:45 UTCMay 27, 17:05 UTC13h 21m
2026-05-26 TUP6420 - May 26, 21:34 UTCMay 27, 17:05 UTC19h 31m
2026-05-26 TUP6420 - May 26, 18:50 UTCMay 27, 17:05 UTC22h 16m
2026-05-26 TUP6420 - May 26, 00:35 UTCMay 26, 22:15 UTC21h 40m
2026-05-25 TUP6420 - May 25, 23:04 UTCMay 26, 22:15 UTC23h 10m
2026-05-24 TUP6454 - May 24, 16:15 UTCMay 24, 19:50 UTC3h 35m
2026-05-20 TUP9688 - May 20, 22:35 UTCMay 21, 18:10 UTC19h 35m
2026-05-20 TUP9688 - May 20, 22:10 UTCMay 21, 18:10 UTC20h 0m
2026-05-18 TUP9632 - May 18, 13:10 UTCMay 18, 14:55 UTC1h 45m
2026-05-17 TUP9632 - May 17, 17:15 UTCMay 18, 14:55 UTC21h 40m
2026-05-15 TUP9633 - May 15, 18:45 UTCMay 15, 19:00 UTC15m
2026-05-13 TUP9625 - May 13, 20:30 UTCMay 13, 21:50 UTC1h 20m
2026-05-12 TUP9632 - May 12, 18:35 UTCMay 13, 14:05 UTC19h 30m
2026-05-12 TUP9632 - May 12, 18:20 UTCMay 13, 14:05 UTC19h 45m
2026-05-11 TUP9627 NJC → VKO May 11, 20:40 UTCMay 12, 18:40 UTC22h 0m
2026-05-08 TUP9630 - May 8, 22:00 UTCMay 9, 14:25 UTC16h 25m
2026-05-06 TUP9629 - May 6, 22:45 UTCMay 7, 13:55 UTC15h 10m
2026-05-05 TUP9633 - May 5, 22:20 UTCMay 6, 16:05 UTC17h 45m
2026-05-05 TUP9622 - May 5, 09:50 UTCMay 5, 22:45 UTC12h 55m
2026-05-03 TUP9627 NJC → VKO May 3, 23:45 UTCMay 4, 00:45 UTC1h 0m
2026-05-02 TUP9634 - May 2, 15:25 UTCMay 2, 16:25 UTC1h 0m
2026-05-01 TUP9634 - May 1, 17:10 UTCMay 2, 16:25 UTC23h 16m
2026-05-01 TUP9628 SVO → SVO May 1, 11:30 UTCMay 1, 11:40 UTC10m
2026-04-30 TUP9627 NJC → VKO Apr 30, 20:30 UTCMay 1, 10:40 UTC14h 10m
2026-04-30 TUP9626 - Apr 30, 11:00 UTCMay 1, 10:30 UTC23h 30m
2026-04-29 TUP9625 - Apr 29, 20:35 UTCApr 30, 20:30 UTC23h 55m
2026-04-28 TUP9628 - Apr 28, 14:25 UTCApr 29, 01:50 UTC11h 25m
2026-04-28 TUP9628 - Apr 28, 02:35 UTCApr 29, 01:50 UTC23h 15m
2026-04-28 TUP9628 - Apr 28, 01:55 UTCApr 28, 16:15 UTC14h 20m
2026-04-27 TUP6454 - Apr 27, 19:05 UTCApr 27, 19:15 UTC10m
2026-04-27 TUP6454 - Apr 27, 00:00 UTCApr 27, 18:25 UTC18h 25m
2026-04-25 TUP6494 - Apr 25, 11:25 UTCApr 25, 16:45 UTC5h 20m
2026-04-25 TUP9626 - Apr 25, 07:40 UTCApr 25, 08:00 UTC20m
2026-04-22 TUP9617 - Apr 22, 13:50 UTCApr 23, 01:50 UTC12h 0m
2026-04-22 TUP9619 - Apr 22, 00:35 UTCApr 23, 00:30 UTC23h 55m
2026-04-21 TUP9619 - Apr 21, 23:45 UTCApr 22, 18:10 UTC18h 25m
2026-04-21 TUP9634 - Apr 21, 11:50 UTCApr 22, 01:35 UTC13h 45m
2026-04-20 TUP9633 - Apr 20, 18:05 UTCApr 20, 21:30 UTC3h 25m
2026-04-19 TUP9632 - Apr 19, 19:30 UTCApr 20, 15:15 UTC19h 45m
2026-04-19 TUP9631 SVO → SVO Apr 19, 16:30 UTCApr 19, 16:50 UTC20m
2026-04-17 TUP6488 - Apr 17, 15:20 UTCApr 17, 17:15 UTC1h 55m
2026-04-17 TUP6488 - Apr 17, 15:05 UTCApr 17, 15:15 UTC10m
2026-04-16 TUP9626 - Apr 16, 08:40 UTCApr 16, 09:00 UTC20m
2026-04-15 TUP9625 - Apr 15, 21:05 UTCApr 15, 22:55 UTC1h 50m
2026-04-15 TUP9625 SVO → SVO Apr 15, 20:50 UTCApr 15, 21:00 UTC10m
2026-04-15 TUP9632 SVO → SVO Apr 15, 15:05 UTCApr 15, 15:25 UTC20m
2026-04-15 TUP9632 - Apr 15, 13:01 UTCApr 15, 14:55 UTC1h 54m
2026-04-14 TUP9631 - Apr 14, 21:20 UTCApr 14, 21:45 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-73354 page for operator, model, and routing details .

Mode-S 151E8A frequently asked

What is Mode-S code 151E8A?
151E8A is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73354.
Where is Mode-S 151E8A registered?
Mode-S code 151E8A is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E8A broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E8A, octal 05217212, decimal 1,384,074.
What flights does 151E8A operate?
Mode-S 151E8A has broadcast 20 distinct callsigns, including TUP9632, TUP9628, TUP9627, TUP9626, TUP9625.