Apparatus

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sensors Mode-S transponder

151E53

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73299 · BOEING 737-800

Hex
151E53
Octal
05217123
Decimal
1,384,019
Country
RU
Tail
RA-73299
Type
B738
Broadcasting now · callsign PBD735 · 4,750 ft
Flights observed
132
Distinct callsigns
20
Country
RU
Last broadcast
19h ago

Current position

151E53 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 151E53 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
PBD855 - 9 2026-07-06
PBD856 - 6 2026-07-02
PBD263 - 6 2026-07-05
PBD735 - 5 2026-07-06
PBD736 - 4 2026-07-06
PBD240 - 4 2026-04-27
PBD964 - 3 2026-06-23
PBD859 - 3 2026-05-29
PBD835 Pobeda 3 2026-06-04
PBD770 - 3 2026-06-26
PBD714 - 3 2026-06-16
PBD6835 - 3 2026-07-21
PBD559 - 3 2026-07-17
PBD535 Pobeda 3 2026-07-23
PBD525 - 3 2026-07-19
PBD262 Pobeda 3 2026-06-25
PBD995 Pobeda 2 2026-05-23
PBD993 - 2 2026-06-26
PBD973 Pobeda 2 2026-05-08
PBD860 Pobeda 2 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 PBD535 LED → KGD Jul 23, 17:35 UTCJul 23, 18:45 UTC1h 10m
2026-07-21 PBD5543 SVO → SVO Jul 21, 22:30 UTCJul 21, 22:45 UTC15m
2026-07-21 PBD6819 SVO → SVO Jul 21, 17:40 UTCJul 21, 18:05 UTC25m
2026-07-21 PBD6836 KGD → SVO Jul 21, 14:45 UTCJul 21, 16:20 UTC1h 35m
2026-07-21 PBD6835 - Jul 21, 12:40 UTCJul 21, 13:15 UTC35m
2026-07-20 PBD6835 - Jul 20, 16:50 UTCJul 21, 13:15 UTC20h 24m
2026-07-20 PBD6835 - Jul 20, 16:40 UTCJul 21, 13:15 UTC20h 35m
2026-07-20 PBD941 IST → IST Jul 20, 15:05 UTCJul 20, 15:20 UTC15m
2026-07-19 PBD525 - Jul 19, 14:15 UTCJul 19, 14:40 UTC25m
2026-07-18 PBD516 - Jul 18, 22:50 UTCJul 19, 01:55 UTC3h 5m
2026-07-18 PBD525 - Jul 18, 11:05 UTCJul 18, 11:15 UTC10m
2026-07-17 PBD559 - Jul 17, 22:20 UTCJul 17, 22:35 UTC15m
2026-07-17 PBD559 - Jul 17, 20:40 UTCJul 17, 20:50 UTC10m
2026-07-17 PBD513 - Jul 17, 15:40 UTCJul 17, 16:00 UTC20m
2026-07-17 PBD525 LED → LED Jul 17, 10:35 UTCJul 17, 11:00 UTC25m
2026-07-16 PBD414 - Jul 16, 02:20 UTCJul 16, 18:50 UTC16h 30m
2026-07-14 PBD862 - Jul 14, 14:15 UTCJul 14, 14:45 UTC30m
2026-07-14 PBD861 - Jul 14, 12:20 UTCJul 14, 12:40 UTC20m
2026-07-10 PBD589 - Jul 10, 18:25 UTCJul 10, 19:45 UTC1h 20m
2026-07-09 PBD6872 - Jul 9, 14:00 UTCJul 9, 15:10 UTC1h 10m
2026-07-09 PBD6871 - Jul 9, 11:55 UTCJul 9, 12:15 UTC20m
2026-07-07 PBD6874 - Jul 7, 15:30 UTCJul 7, 16:35 UTC1h 5m
2026-07-07 PBD6873 - Jul 7, 13:25 UTCJul 7, 13:55 UTC30m
2026-07-06 PBD736 - Jul 6, 16:20 UTCJul 6, 17:55 UTC1h 35m
2026-07-06 PBD735 LWN → GZP Jul 6, 07:20 UTCJul 6, 15:25 UTC8h 5m
2026-07-06 PBD855 - Jul 6, 05:50 UTCJul 6, 06:15 UTC25m
2026-07-05 PBD263 - Jul 5, 11:25 UTCJul 5, 17:30 UTC6h 5m
2026-07-02 PBD856 - Jul 2, 10:30 UTCJul 2, 11:05 UTC35m
2026-07-01 PBD856 - Jul 1, 08:00 UTCJul 1, 08:30 UTC30m
2026-07-01 PBD855 - Jul 1, 06:30 UTCJul 1, 06:45 UTC15m
2026-06-30 PBD206 SVO → VKO Jun 30, 17:00 UTCJun 30, 18:30 UTC1h 30m
2026-06-30 PBD588 KGD → LED Jun 30, 15:00 UTCJun 30, 15:55 UTC55m
2026-06-30 PBD587 LED → KGD Jun 30, 11:40 UTCJun 30, 13:10 UTC1h 30m
2026-06-29 PBD536 - Jun 29, 20:15 UTCJun 29, 21:05 UTC50m
2026-06-29 PBD535 - Jun 29, 17:24 UTCJun 29, 18:39 UTC1h 15m
2026-06-28 PBD536 - Jun 28, 19:55 UTCJun 28, 20:54 UTC1h 0m
2026-06-28 PBD535 - Jun 28, 10:10 UTCJun 28, 18:25 UTC8h 15m
2026-06-28 PBD855 - Jun 28, 08:29 UTCJun 28, 08:59 UTC30m
2026-06-27 PBD855 - Jun 27, 10:50 UTCJun 28, 08:59 UTC22h 10m
2026-06-27 PBD856 - Jun 27, 10:29 UTCJun 28, 08:44 UTC22h 15m
2026-06-27 PBD855 - Jun 27, 08:44 UTCJun 27, 09:15 UTC30m
2026-06-26 PBD770 - Jun 26, 09:55 UTCJun 26, 10:25 UTC30m
2026-06-26 PBD993 - Jun 26, 08:10 UTCJun 26, 08:30 UTC20m
2026-06-25 PBD262 KGD → VKO Jun 25, 09:34 UTCJun 25, 11:19 UTC1h 45m
2026-06-24 PBD262 KGD → VKO Jun 24, 13:00 UTCJun 25, 11:19 UTC22h 20m
2026-06-24 PBD736 - Jun 24, 12:14 UTCJun 25, 10:45 UTC22h 30m
2026-06-24 PBD735 - Jun 24, 09:45 UTCJun 24, 11:20 UTC1h 35m
2026-06-23 PBD964 - Jun 23, 13:05 UTCJun 24, 11:20 UTC22h 15m
2026-06-23 PBD964 - Jun 23, 12:15 UTCJun 24, 10:25 UTC22h 10m
2026-06-22 PBD840 - Jun 22, 11:30 UTCJun 22, 13:14 UTC1h 45m

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-73299 page for operator, model, and routing details .

Mode-S 151E53 frequently asked

What is Mode-S code 151E53?
151E53 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73299.
Where is Mode-S 151E53 registered?
Mode-S code 151E53 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E53 broadcasting right now?
Yes. Mode-S 151E53 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E53, octal 05217123, decimal 1,384,019.
What flights does 151E53 operate?
Mode-S 151E53 has broadcast 20 distinct callsigns, including PBD855, PBD856, PBD263, PBD735, PBD736.