Apparatus

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sensors Mode-S transponder

151E52

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73298 · BOEING 737-800

Hex
151E52
Octal
05217122
Decimal
1,384,018
Country
RU
Tail
RA-73298
Type
B738
No current signal · last broadcast Jul 26, 12:35 UTC
Flights observed
158
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 12:35 UTC

Last known position

Most recent position reported by Mode-S 151E52.

Country allocation

The ICAO 24-bit address 151E52 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
PBD856 - 14 2026-07-21
PBD855 Pobeda 12 2026-07-23
PBD839 - 12 2026-07-13
PBD840 Pobeda 11 2026-07-22
PBD993 - 8 2026-07-26
PBD735 - 8 2026-07-17
PBD836 - 7 2026-07-20
PBD835 Pobeda 6 2026-07-20
PBD859 - 5 2026-07-06
PBD736 - 5 2026-07-17
PBD262 - 4 2026-07-10
PBD261 Pobeda 4 2026-07-03
PBD964 - 3 2026-07-11
PBD963 - 3 2026-07-15
PBD860 - 3 2026-07-14
PBD770 - 3 2026-07-26
PBD979 - 2 2026-07-25
PBD769 - 2 2026-05-29
PBD729 - 2 2026-04-15
PBD6903 - 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PBD770 - Jul 26, 12:10 UTCJul 26, 12:35 UTC25m
2026-07-26 PBD993 - Jul 26, 10:00 UTCJul 26, 10:30 UTC30m
2026-07-26 PBD993 - Jul 26, 08:50 UTCJul 26, 09:25 UTC35m
2026-07-25 PBD993 - Jul 25, 13:25 UTCJul 26, 09:25 UTC20h 1m
2026-07-25 PBD979 - Jul 25, 09:50 UTCJul 25, 11:50 UTC2h 0m
2026-07-24 PBD979 - Jul 24, 11:35 UTCJul 25, 10:20 UTC22h 45m
2026-07-24 PBD993 - Jul 24, 07:25 UTCJul 24, 09:15 UTC1h 50m
2026-07-23 PBD993 - Jul 23, 12:10 UTCJul 24, 09:15 UTC21h 5m
2026-07-23 PBD855 VKO → VKO Jul 23, 10:25 UTCJul 23, 10:40 UTC15m
2026-07-22 PBD840 AYT → AYT Jul 22, 11:55 UTCJul 22, 12:15 UTC20m
2026-07-21 PBD856 - Jul 21, 08:20 UTCJul 21, 08:50 UTC30m
2026-07-21 PBD855 VKO → VKO Jul 21, 06:55 UTCJul 21, 07:20 UTC25m
2026-07-20 PBD836 - Jul 20, 08:50 UTCJul 20, 17:50 UTC9h 0m
2026-07-20 PBD835 VKO → VKO Jul 20, 07:35 UTCJul 20, 08:00 UTC25m
2026-07-18 PBD856 - Jul 18, 08:40 UTCJul 18, 09:05 UTC25m
2026-07-17 PBD736 - Jul 17, 19:25 UTCJul 18, 07:30 UTC12h 6m
2026-07-17 PBD735 - Jul 17, 17:09 UTCJul 17, 18:25 UTC1h 15m
2026-07-16 PBD856 - Jul 16, 12:34 UTCJul 16, 13:05 UTC30m
2026-07-15 PBD855 - Jul 15, 14:35 UTCJul 16, 10:55 UTC20h 20m
2026-07-15 PBD855 - Jul 15, 14:10 UTCJul 16, 10:55 UTC20h 45m
2026-07-15 PBD963 - Jul 15, 11:05 UTCJul 15, 13:00 UTC1h 55m
2026-07-14 PBD860 - Jul 14, 14:10 UTCJul 14, 15:55 UTC1h 45m
2026-07-13 PBD840 - Jul 13, 09:45 UTCJul 13, 11:35 UTC1h 50m
2026-07-13 PBD839 - Jul 13, 07:20 UTCJul 13, 08:40 UTC1h 20m
2026-07-12 PBD856 - Jul 12, 17:15 UTCJul 12, 17:30 UTC15m
2026-07-12 PBD856 - Jul 12, 10:05 UTCJul 12, 10:35 UTC30m
2026-07-11 PBD855 - Jul 11, 20:35 UTCJul 12, 09:05 UTC12h 30m
2026-07-11 PBD964 - Jul 11, 13:50 UTCJul 12, 09:05 UTC19h 15m
2026-07-11 PBD963 - Jul 11, 12:10 UTCJul 11, 12:35 UTC25m
2026-07-10 PBD262 - Jul 10, 18:10 UTCJul 11, 12:35 UTC18h 25m
2026-07-10 PBD836 - Jul 10, 09:45 UTCJul 10, 16:55 UTC7h 10m
2026-07-10 PBD835 - Jul 10, 07:10 UTCJul 10, 08:55 UTC1h 45m
2026-07-09 PBD840 - Jul 9, 11:55 UTCJul 9, 19:20 UTC7h 25m
2026-07-09 PBD839 - Jul 9, 10:00 UTCJul 9, 10:40 UTC40m
2026-07-08 PBD839 - Jul 8, 14:35 UTCJul 9, 10:40 UTC20h 5m
2026-07-08 PBD839 - Jul 8, 14:15 UTCJul 9, 10:40 UTC20h 25m
2026-07-08 PBD735 - Jul 8, 11:35 UTCJul 8, 13:25 UTC1h 50m
2026-07-07 PBD735 - Jul 7, 16:45 UTCJul 8, 13:25 UTC20h 40m
2026-07-07 PBD735 - Jul 7, 16:00 UTCJul 8, 13:25 UTC21h 25m
2026-07-07 PBD835 - Jul 7, 14:35 UTCJul 7, 15:00 UTC25m
2026-07-06 PBD860 - Jul 6, 11:15 UTCJul 6, 12:55 UTC1h 40m
2026-07-06 PBD859 - Jul 6, 09:15 UTCJul 6, 10:00 UTC45m
2026-07-05 PBD859 - Jul 5, 13:20 UTCJul 6, 10:00 UTC20h 40m
2026-07-05 PBD859 - Jul 5, 10:45 UTCJul 5, 11:25 UTC40m
2026-07-04 PBD836 - Jul 4, 14:50 UTCJul 5, 11:25 UTC20h 35m
2026-07-03 PBD835 - Jul 3, 18:35 UTCJul 4, 14:00 UTC19h 25m
2026-07-03 PBD262 - Jul 3, 18:15 UTCJul 4, 14:00 UTC19h 45m
2026-07-03 PBD261 VKO → KGD Jul 3, 08:05 UTCJul 3, 16:45 UTC8h 40m
2026-07-03 PBD855 - Jul 3, 06:35 UTCJul 3, 06:55 UTC20m
2026-07-02 PBD855 - Jul 2, 10:35 UTCJul 3, 06:55 UTC20h 20m

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-73298 page for operator, model, and routing details .

Mode-S 151E52 frequently asked

What is Mode-S code 151E52?
151E52 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73298.
Where is Mode-S 151E52 registered?
Mode-S code 151E52 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E52 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E52, octal 05217122, decimal 1,384,018.
What flights does 151E52 operate?
Mode-S 151E52 has broadcast 20 distinct callsigns, including PBD856, PBD855, PBD839, PBD840, PBD993.