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 Jul 26, 08:55 UTC
Flights observed
150
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 08:55 UTC

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 5 2026-07-11
PBD6548 - 5 2026-06-05
PBD840 - 4 2026-07-14
PBD839 - 4 2026-07-14
PBD6838 Pobeda 4 2026-06-15
PBD588 Pobeda 4 2026-06-28
PBD964 - 3 2026-06-25
PBD963 - 3 2026-06-25
PBD942 Pobeda 3 2026-06-08
PBD860 - 3 2026-07-21
PBD6837 - 3 2026-07-11
PBD6835 Pobeda 3 2026-05-25
PBD6833 Pobeda 3 2026-07-18
PBD6543 - 3 2026-04-23
PBD6531 - 3 2026-05-30
PBD587 Pobeda 3 2026-06-18
PBD974 Pobeda 2 2026-07-25
PBD894 - 2 2026-06-28
PBD859 - 2 2026-07-21
PBD835 Pobeda 2 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PBD6911 SVO → SVO Jul 26, 08:35 UTCJul 26, 08:55 UTC20m
2026-07-25 PBD974 IST → IST Jul 25, 14:50 UTCJul 25, 15:15 UTC25m
2026-07-23 PBD836 - Jul 23, 09:20 UTCJul 23, 11:00 UTC1h 40m
2026-07-23 PBD835 VKO → VKO Jul 23, 08:00 UTCJul 23, 08:20 UTC20m
2026-07-23 PBD835 VKO → VKO Jul 23, 06:55 UTCJul 23, 07:25 UTC30m
2026-07-22 PBD206 - Jul 22, 18:10 UTCJul 22, 19:20 UTC1h 10m
2026-07-22 PBD592 - Jul 22, 04:30 UTCJul 22, 04:50 UTC20m
2026-07-21 PBD591 - Jul 21, 21:10 UTCJul 21, 21:25 UTC15m
2026-07-21 PBD860 - Jul 21, 11:05 UTCJul 21, 12:55 UTC1h 50m
2026-07-21 PBD859 - Jul 21, 09:40 UTCJul 21, 09:55 UTC15m
2026-07-20 PBD980 - Jul 20, 14:05 UTCJul 20, 14:40 UTC35m
2026-07-20 PBD979 - Jul 20, 12:35 UTCJul 20, 13:05 UTC30m
2026-07-19 PBD736 - Jul 19, 13:50 UTCJul 19, 15:35 UTC1h 45m
2026-07-19 PBD735 - Jul 19, 11:25 UTCJul 19, 12:55 UTC1h 30m
2026-07-18 PBD589 - Jul 18, 15:40 UTCJul 18, 17:10 UTC1h 30m
2026-07-18 PBD590 - Jul 18, 13:45 UTCJul 18, 14:40 UTC55m
2026-07-18 PBD6833 SVO → SVO Jul 18, 11:00 UTCJul 18, 12:10 UTC1h 10m
2026-07-18 PBD6863 SVO → SVO Jul 18, 05:10 UTCJul 18, 06:25 UTC1h 15m
2026-07-17 PBD570 - Jul 17, 02:20 UTCJul 17, 16:04 UTC13h 45m
2026-07-15 PBD994 - Jul 15, 16:45 UTCJul 15, 17:10 UTC25m
2026-07-15 PBD436 - Jul 15, 03:30 UTCJul 15, 03:45 UTC15m
2026-07-14 PBD840 - Jul 14, 09:55 UTCJul 15, 02:55 UTC16h 59m
2026-07-14 PBD839 - Jul 14, 08:10 UTCJul 14, 08:55 UTC45m
2026-07-11 PBD6991 - Jul 11, 19:35 UTCJul 11, 20:00 UTC25m
2026-07-11 PBD6836 KGD → SVO Jul 11, 16:20 UTCJul 11, 18:10 UTC1h 50m
2026-07-11 PBD6837 - Jul 11, 06:55 UTCJul 11, 07:50 UTC55m
2026-07-09 PBD6833 - Jul 9, 12:15 UTCJul 9, 12:55 UTC40m
2026-07-06 PBD840 - Jul 6, 11:10 UTCJul 6, 12:40 UTC1h 30m
2026-07-06 PBD839 - Jul 6, 09:05 UTCJul 6, 09:50 UTC45m
2026-07-05 PBD768 - Jul 5, 16:30 UTCJul 5, 16:40 UTC10m
2026-07-02 PBD974 IST → IST Jul 2, 13:40 UTCJul 2, 14:10 UTC30m
2026-06-28 PBD894 - Jun 28, 17:34 UTCJun 28, 18:40 UTC1h 5m
2026-06-28 PBD893 LED → LED Jun 28, 15:40 UTCJun 28, 16:35 UTC55m
2026-06-28 PBD588 KGD → LED Jun 28, 13:34 UTCJun 28, 14:30 UTC55m
2026-06-25 PBD964 - Jun 25, 10:04 UTCJun 25, 10:35 UTC30m
2026-06-25 PBD963 - Jun 25, 08:04 UTCJun 25, 08:45 UTC40m
2026-06-24 PBD563 - Jun 24, 04:00 UTCJun 24, 05:05 UTC1h 5m
2026-06-22 PBD338 - Jun 22, 22:30 UTCJun 22, 22:59 UTC30m
2026-06-19 PBD964 - Jun 19, 12:19 UTCJun 19, 12:59 UTC40m
2026-06-19 PBD963 - Jun 19, 09:59 UTCJun 19, 10:24 UTC25m
2026-06-18 PBD577 - Jun 18, 20:25 UTCJun 18, 21:30 UTC1h 5m
2026-06-18 PBD588 KGD → LED Jun 18, 18:45 UTCJun 18, 19:00 UTC15m
2026-06-18 PBD587 LED → KGD Jun 18, 15:05 UTCJun 18, 16:15 UTC1h 10m
2026-06-18 PBD539 - Jun 18, 05:35 UTCJun 18, 06:00 UTC25m
2026-06-17 PBD525 LED → LED Jun 17, 11:10 UTCJun 17, 11:50 UTC40m
2026-06-17 PBD530 - Jun 17, 09:05 UTCJun 17, 09:55 UTC50m
2026-06-17 PBD529 - Jun 17, 06:50 UTCJun 17, 07:25 UTC35m
2026-06-15 PBD6838 KGD → SVO Jun 15, 17:15 UTCJun 16, 09:34 UTC16h 20m
2026-06-15 PBD941 IST → IST Jun 15, 15:40 UTCJun 15, 15:50 UTC10m
2026-06-14 PBD6901 - Jun 14, 13:30 UTCJun 14, 13:50 UTC20m

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 Jul 26, 08:55 UTC.
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, PBD6548, PBD840, PBD839, PBD6838.