Apparatus

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sensors Mode-S transponder

151E56

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73302 · BOEING 737-800

Hex
151E56
Octal
05217126
Decimal
1,384,022
Country
RU
Tail
RA-73302
Type
B738
No current signal · last broadcast 15h ago
Flights observed
122
Distinct callsigns
20
Country
RU
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 151E56.

Country allocation

The ICAO 24-bit address 151E56 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 - 7 2026-07-08
PBD840 - 6 2026-07-04
PBD6836 Pobeda 4 2026-06-29
PBD993 - 3 2026-07-03
PBD963 - 3 2026-06-21
PBD770 - 3 2026-07-03
PBD6835 Pobeda 3 2026-06-03
PBD6831 Pobeda 3 2026-05-14
PBD529 - 3 2026-07-05
PBD263 - 3 2026-06-19
PBD973 Pobeda 2 2026-06-06
PBD6832 Pobeda 2 2026-05-14
PBD6817 - 2 2026-06-01
PBD6584 - 2 2026-06-04
PBD6583 - 2 2026-05-12
PBD6525 - 2 2026-05-13
PBD577 - 2 2026-05-27
PBD539 - 2 2026-07-09
PBD530 Pobeda 2 2026-05-27
PBD528 - 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 PBD862 - Jul 13, 15:55 UTCJul 13, 16:20 UTC25m
2026-07-13 PBD861 - Jul 13, 14:15 UTCJul 13, 14:35 UTC20m
2026-07-10 PBD6824 - Jul 10, 13:05 UTCJul 10, 13:25 UTC20m
2026-07-10 PBD594 GSV → GSV Jul 10, 10:15 UTCJul 10, 10:45 UTC30m
2026-07-09 PBD571 - Jul 9, 15:10 UTCJul 9, 15:25 UTC15m
2026-07-09 PBD539 - Jul 9, 06:05 UTCJul 9, 07:25 UTC1h 20m
2026-07-08 PBD539 - Jul 8, 09:55 UTCJul 9, 07:25 UTC21h 30m
2026-07-08 PBD839 - Jul 8, 08:20 UTCJul 8, 08:50 UTC30m
2026-07-07 PBD956 - Jul 7, 09:30 UTCJul 7, 09:55 UTC25m
2026-07-07 PBD955 - Jul 7, 08:20 UTCJul 7, 08:30 UTC10m
2026-07-06 PBD978 - Jul 6, 08:50 UTCJul 6, 09:15 UTC25m
2026-07-06 PBD977 - Jul 6, 06:50 UTCJul 6, 07:15 UTC25m
2026-07-05 PBD529 - Jul 5, 06:00 UTCJul 5, 07:20 UTC1h 20m
2026-07-04 PBD840 - Jul 4, 09:45 UTCJul 4, 10:10 UTC25m
2026-07-04 PBD839 - Jul 4, 08:15 UTCJul 4, 08:55 UTC40m
2026-07-03 PBD770 - Jul 3, 11:35 UTCJul 4, 08:55 UTC21h 20m
2026-07-03 PBD770 - Jul 3, 10:15 UTCJul 4, 08:55 UTC22h 40m
2026-07-03 PBD993 - Jul 3, 06:25 UTCJul 3, 07:55 UTC1h 30m
2026-06-29 PBD6836 KGD → SVO Jun 29, 14:34 UTCJun 29, 15:30 UTC55m
2026-06-26 PBD537 LED → LED Jun 26, 07:45 UTCJun 26, 08:10 UTC25m
2026-06-26 PBD6823 - Jun 26, 03:50 UTCJun 26, 04:10 UTC20m
2026-06-24 PBD840 - Jun 24, 14:04 UTCJun 24, 14:29 UTC25m
2026-06-24 PBD839 - Jun 24, 11:09 UTCJun 24, 12:54 UTC1h 45m
2026-06-23 PBD262 KGD → VKO Jun 23, 09:29 UTCJun 23, 11:19 UTC1h 50m
2026-06-23 PBD261 VKO → KGD Jun 23, 07:15 UTCJun 23, 08:09 UTC55m
2026-06-21 PBD964 - Jun 21, 11:20 UTCJun 21, 11:44 UTC25m
2026-06-21 PBD963 - Jun 21, 07:59 UTCJun 21, 09:55 UTC1h 55m
2026-06-20 PBD963 - Jun 20, 11:34 UTCJun 21, 09:55 UTC22h 20m
2026-06-20 PBD840 - Jun 20, 10:20 UTCJun 21, 09:29 UTC23h 10m
2026-06-19 PBD839 - Jun 19, 19:09 UTCJun 20, 09:19 UTC14h 10m
2026-06-19 PBD263 - Jun 19, 10:09 UTCJun 19, 17:44 UTC7h 35m
2026-06-18 PBD994 - Jun 18, 21:30 UTCJun 19, 09:09 UTC11h 39m
2026-06-18 PBD769 - Jun 18, 19:55 UTCJun 18, 20:10 UTC15m
2026-06-18 PBD770 - Jun 18, 15:10 UTCJun 18, 15:40 UTC30m
2026-06-18 PBD993 - Jun 18, 13:30 UTCJun 18, 13:50 UTC20m
2026-06-17 PBD840 AYT → AYT Jun 17, 10:05 UTCJun 17, 10:25 UTC20m
2026-06-16 PBD839 - Jun 16, 14:25 UTCJun 17, 09:05 UTC18h 41m
2026-06-16 PBD963 - Jun 16, 11:05 UTCJun 16, 12:50 UTC1h 45m
2026-06-13 PBD836 - Jun 13, 11:00 UTCJun 13, 12:30 UTC1h 30m
2026-06-12 PBD840 AYT → AYT Jun 12, 13:20 UTCJun 12, 19:55 UTC6h 35m
2026-06-12 PBD839 AYT → AYT Jun 12, 10:05 UTCJun 12, 10:50 UTC45m
2026-06-07 PBD1569 - Jun 7, 02:00 UTCJun 7, 09:40 UTC7h 40m
2026-06-06 PBD974 IST → IST Jun 6, 14:14 UTCJun 6, 18:09 UTC3h 55m
2026-06-06 PBD973 IST → ISL Jun 6, 12:35 UTCJun 6, 13:00 UTC25m
2026-06-05 PBD958 - Jun 5, 13:40 UTCJun 5, 15:25 UTC1h 45m
2026-06-05 PBD957 - Jun 5, 11:55 UTCJun 5, 12:20 UTC25m
2026-06-04 PBD6967 - Jun 4, 17:40 UTCJun 4, 18:05 UTC25m
2026-06-04 PBD6584 - Jun 4, 05:45 UTCJun 4, 16:35 UTC10h 50m
2026-06-03 PBD312 - Jun 3, 15:35 UTCJun 4, 15:30 UTC23h 55m
2026-06-03 PBD6836 KGD → SVO Jun 3, 14:35 UTCJun 4, 06:45 UTC16h 10m

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-73302 page for operator, model, and routing details .

Mode-S 151E56 frequently asked

What is Mode-S code 151E56?
151E56 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73302.
Where is Mode-S 151E56 registered?
Mode-S code 151E56 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E56 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 151E56, octal 05217126, decimal 1,384,022.
What flights does 151E56 operate?
Mode-S 151E56 has broadcast 20 distinct callsigns, including PBD839, PBD840, PBD6836, PBD993, PBD963.