Apparatus

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sensors Mode-S transponder

151E1F

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73247 · BOEING 737-800

Hex
151E1F
Octal
05217037
Decimal
1,383,967
Country
RU
Tail
RA-73247
Type
B738
No current signal · last broadcast 1h ago
Flights observed
78
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 151E1F.

Country allocation

The ICAO 24-bit address 151E1F 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
PBD6836 Pobeda 4 2026-05-25
PBD6835 Pobeda 3 2026-05-25
PBD6548 - 3 2026-06-03
PBD6543 - 3 2026-04-23
PBD6531 - 3 2026-05-30
PBD942 Pobeda 2 2026-06-01
PBD860 Pobeda 2 2026-04-28
PBD840 Pobeda 2 2026-04-30
PBD839 Pobeda 2 2026-04-29
PBD6846 - 2 2026-05-20
PBD6845 - 2 2026-05-30
PBD6838 Pobeda 2 2026-05-19
PBD6837 - 2 2026-05-19
PBD6547 - 2 2026-04-22
PBD6521 - 2 2026-05-17
PBD588 Pobeda 2 2026-05-27
PBD587 Pobeda 2 2026-05-26
PBD535 Pobeda 2 2026-04-25
PBD968 - 1 2026-04-24
PBD894 - 1 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 PBD6548 - Jun 3, 02:05 UTCJun 3, 02:40 UTC35m
2026-06-02 PBD5949 - Jun 2, 04:05 UTCJun 2, 05:00 UTC55m
2026-06-01 PBD942 IST → IST Jun 1, 20:00 UTCJun 1, 20:35 UTC35m
2026-06-01 PBD942 IST → IST Jun 1, 18:45 UTCJun 1, 19:15 UTC30m
2026-05-31 PBD5547 SVO → SVO May 31, 19:05 UTCMay 31, 19:30 UTC25m
2026-05-30 PBD6531 - May 30, 19:30 UTCMay 30, 19:45 UTC15m
2026-05-30 PBD6531 SVO → SVO May 30, 18:25 UTCMay 30, 18:40 UTC15m
2026-05-30 PBD6845 SVO → SVO May 30, 13:20 UTCMay 30, 13:45 UTC25m
2026-05-29 PBD6531 SVO → SVO May 29, 18:20 UTCMay 29, 18:55 UTC35m
2026-05-27 PBD6816 - May 27, 17:00 UTCMay 27, 17:25 UTC25m
2026-05-27 PBD6824 LED → LED May 27, 12:00 UTCMay 27, 13:15 UTC1h 15m
2026-05-27 PBD588 KGD → LED May 27, 10:20 UTCMay 27, 11:15 UTC55m
2026-05-26 PBD587 LED → KGD May 26, 22:59 UTCMay 27, 08:45 UTC9h 46m
2026-05-26 PBD588 KGD → LED May 26, 16:50 UTCMay 26, 17:44 UTC55m
2026-05-26 PBD587 LED → KGD May 26, 14:24 UTCMay 26, 15:05 UTC40m
2026-05-25 PBD6968 - May 25, 20:40 UTCMay 25, 21:19 UTC40m
2026-05-25 PBD6967 SVO → SVO May 25, 17:10 UTCMay 25, 17:35 UTC25m
2026-05-25 PBD6836 KGD → SVO May 25, 14:55 UTCMay 25, 15:40 UTC45m
2026-05-25 PBD6835 SVO → KGD May 25, 11:05 UTCMay 25, 13:15 UTC2h 10m
2026-05-24 PBD6963 SVO → SVO May 24, 17:25 UTCMay 24, 17:55 UTC30m
2026-05-20 PBD6859 SVO → SVO May 20, 19:05 UTCMay 20, 19:35 UTC30m
2026-05-20 PBD6846 - May 20, 16:45 UTCMay 20, 17:10 UTC25m
2026-05-19 PBD6836 KGD → SVO May 19, 14:15 UTCMay 19, 15:40 UTC1h 25m
2026-05-19 PBD6838 KGD → SVO May 19, 07:55 UTCMay 19, 13:10 UTC5h 15m
2026-05-19 PBD6837 - May 19, 06:05 UTCMay 19, 06:45 UTC40m
2026-05-18 PBD6836 KGD → SVO May 18, 15:00 UTCMay 18, 16:10 UTC1h 10m
2026-05-18 PBD6835 SVO → KGD May 18, 11:35 UTCMay 18, 13:45 UTC2h 10m
2026-05-17 PBD6521 - May 17, 21:35 UTCMay 17, 21:50 UTC15m
2026-05-14 PBD6939 SVO → SVO May 14, 05:20 UTCMay 14, 05:55 UTC35m
2026-05-14 PBD6562 - May 14, 01:50 UTCMay 14, 03:00 UTC1h 10m
2026-05-13 PBD6561 SVO → SVO May 13, 22:05 UTCMay 13, 22:25 UTC20m
2026-05-09 PBD6521 - May 9, 19:25 UTCMay 9, 19:45 UTC20m
2026-05-09 PBD6845 SVO → SVO May 9, 13:15 UTCMay 9, 13:30 UTC15m
2026-05-09 PBD6831 SVO → KGD May 9, 07:45 UTCMay 9, 09:05 UTC1h 20m
2026-05-07 PBD6836 KGD → SVO May 7, 15:30 UTCMay 7, 16:20 UTC50m
2026-05-07 PBD6835 SVO → KGD May 7, 13:00 UTCMay 7, 13:40 UTC40m
2026-05-05 PBD6502 - May 5, 11:50 UTCMay 5, 12:15 UTC25m
2026-05-04 PBD168 - May 4, 23:30 UTCMay 4, 23:50 UTC20m
2026-05-03 PBD617 - May 3, 19:15 UTCMay 3, 19:34 UTC20m
2026-05-03 PBD525 - May 3, 14:10 UTCMay 3, 14:35 UTC25m
2026-05-02 PBD894 - May 2, 17:55 UTCMay 2, 19:00 UTC1h 5m
2026-04-30 PBD840 AYT → AYT Apr 30, 11:50 UTCMay 1, 07:25 UTC19h 35m
2026-04-30 PBD840 AYT → AYT Apr 30, 11:30 UTCMay 1, 07:25 UTC19h 55m
2026-04-29 PBD839 AYT → AYT Apr 29, 17:50 UTCApr 30, 10:20 UTC16h 29m
2026-04-29 PBD839 AYT → AYT Apr 29, 14:40 UTCApr 30, 10:20 UTC19h 39m
2026-04-28 PBD860 AYT → AYT Apr 28, 18:20 UTCApr 29, 15:40 UTC21h 20m
2026-04-28 PBD860 AYT → AYT Apr 28, 17:25 UTCApr 29, 15:40 UTC22h 16m
2026-04-28 PBD859 - Apr 28, 02:30 UTCApr 28, 16:05 UTC13h 35m
2026-04-26 PBD264 KGD → VKO Apr 26, 18:30 UTCApr 26, 20:45 UTC2h 15m
2026-04-26 PBD263 VKO → KGD Apr 26, 16:15 UTCApr 26, 17:20 UTC1h 5m

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-73247 page for operator, model, and routing details .

Mode-S 151E1F frequently asked

What is Mode-S code 151E1F?
151E1F is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73247.
Where is Mode-S 151E1F registered?
Mode-S code 151E1F is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E1F broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E1F, octal 05217037, decimal 1,383,967.
What flights does 151E1F operate?
Mode-S 151E1F has broadcast 20 distinct callsigns, including PBD6836, PBD6835, PBD6548, PBD6543, PBD6531.