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 15h ago
Flights observed
136
Distinct callsigns
20
Country
RU
Last broadcast
15h ago

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
PBD839 - 12 2026-07-13
PBD856 - 11 2026-07-12
PBD840 - 10 2026-07-13
PBD855 - 8 2026-07-11
PBD735 - 7 2026-07-08
PBD836 - 6 2026-07-10
PBD859 - 5 2026-07-06
PBD835 - 5 2026-07-10
PBD736 - 4 2026-06-29
PBD262 - 4 2026-07-10
PBD261 Pobeda 4 2026-07-03
PBD993 - 3 2026-06-07
PBD964 - 3 2026-07-11
PBD963 - 2 2026-07-11
PBD860 - 2 2026-07-06
PBD770 - 2 2026-06-07
PBD769 - 2 2026-05-29
PBD729 - 2 2026-04-15
PBD6903 - 2 2026-05-09
PBD432 - 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-02 PBD836 - Jul 2, 09:10 UTCJul 3, 06:55 UTC21h 45m
2026-07-01 PBD836 - Jul 1, 13:20 UTCJul 2, 08:10 UTC18h 50m
2026-07-01 PBD835 - Jul 1, 10:50 UTCJul 1, 12:30 UTC1h 40m
2026-06-29 PBD968 - Jun 29, 18:25 UTCJun 29, 18:34 UTC10m
2026-06-29 PBD736 - Jun 29, 11:55 UTCJun 29, 12:49 UTC55m
2026-06-29 PBD736 - Jun 29, 11:14 UTCJun 29, 11:25 UTC10m
2026-06-29 PBD735 - Jun 29, 10:04 UTCJun 29, 10:20 UTC15m
2026-06-25 PBD6822 - Jun 25, 19:39 UTCJun 25, 20:09 UTC30m
2026-06-22 PBD836 - Jun 22, 09:45 UTCJun 22, 11:19 UTC1h 35m
2026-06-22 PBD835 - Jun 22, 08:19 UTCJun 22, 08:44 UTC25m
2026-06-21 PBD836 - Jun 21, 10:40 UTCJun 22, 08:44 UTC22h 5m
2026-06-20 PBD262 KGD → VKO Jun 20, 13:04 UTCJun 21, 09:40 UTC20h 35m
2026-06-20 PBD261 VKO → KGD Jun 20, 07:00 UTCJun 20, 11:25 UTC4h 25m
2026-06-19 PBD261 VKO → KGD Jun 19, 15:39 UTCJun 20, 11:25 UTC19h 45m
2026-06-19 PBD839 - Jun 19, 13:39 UTCJun 19, 14:19 UTC40m
2026-06-16 PBD262 KGD → VKO Jun 16, 11:49 UTCJun 16, 13:44 UTC1h 55m
2026-06-16 PBD261 VKO → KGD Jun 16, 09:30 UTCJun 16, 10:04 UTC35m
2026-06-14 PBD790 - Jun 14, 19:35 UTCJun 14, 21:15 UTC1h 40m
2026-06-14 PBD789 - Jun 14, 17:50 UTCJun 14, 18:25 UTC35m
2026-06-11 PBD340 - Jun 11, 12:25 UTCJun 11, 13:30 UTC1h 5m
2026-06-10 PBD736 - Jun 10, 12:55 UTCJun 11, 12:30 UTC23h 35m
2026-06-10 PBD736 - Jun 10, 12:10 UTCJun 10, 13:50 UTC1h 40m

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 15h ago.
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 PBD839, PBD856, PBD840, PBD855, PBD735.