Apparatus

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sensors Mode-S transponder

151E57

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73303 · BOEING 737-800

Hex
151E57
Octal
05217127
Decimal
1,384,023
Country
RU
Tail
RA-73303
Type
B738
No current signal · last broadcast 17h ago
Flights observed
135
Distinct callsigns
20
Country
RU
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 151E57.

Country allocation

The ICAO 24-bit address 151E57 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
PBD894 - 5 2026-05-27
PBD893 - 5 2026-05-27
PBD530 - 4 2026-06-22
PBD527 - 4 2026-06-04
PBD206 Pobeda 4 2026-06-04
PBD994 - 3 2026-06-09
PBD980 - 3 2026-07-03
PBD770 - 3 2026-07-02
PBD769 - 3 2026-06-21
PBD6837 - 3 2026-05-21
PBD6570 - 3 2026-04-28
PBD535 Pobeda 3 2026-06-02
PBD528 - 3 2026-06-03
PBD324 - 3 2026-05-12
PBD957 - 2 2026-07-09
PBD862 - 2 2026-07-06
PBD840 - 2 2026-06-30
PBD839 - 2 2026-06-30
PBD789 - 2 2026-07-08
PBD6925 - 2 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 PBD6842 - Jul 13, 23:50 UTCJul 14, 00:15 UTC25m
2026-07-13 PBD6834 - Jul 13, 17:50 UTCJul 13, 18:55 UTC1h 5m
2026-07-13 PBD589 - Jul 13, 15:15 UTCJul 13, 16:35 UTC1h 20m
2026-07-13 PBD590 - Jul 13, 13:20 UTCJul 13, 14:10 UTC50m
2026-07-09 PBD957 - Jul 9, 11:25 UTCJul 9, 11:55 UTC30m
2026-07-09 PBD6843 SVO → SVO Jul 9, 08:30 UTCJul 9, 08:55 UTC25m
2026-07-08 PBD790 - Jul 8, 14:10 UTCJul 8, 14:35 UTC25m
2026-07-08 PBD789 - Jul 8, 12:20 UTCJul 8, 13:00 UTC40m
2026-07-07 PBD789 - Jul 7, 17:15 UTCJul 8, 13:00 UTC19h 45m
2026-07-06 PBD862 - Jul 6, 14:30 UTCJul 6, 15:00 UTC30m
2026-07-06 PBD6905 SVO → SVO Jul 6, 06:35 UTCJul 6, 07:05 UTC30m
2026-07-04 PBD956 - Jul 4, 12:50 UTCJul 4, 14:40 UTC1h 50m
2026-07-04 PBD955 - Jul 4, 10:45 UTCJul 4, 11:35 UTC50m
2026-07-03 PBD980 - Jul 3, 09:55 UTCJul 3, 11:40 UTC1h 45m
2026-07-02 PBD770 - Jul 2, 10:05 UTCJul 2, 10:30 UTC25m
2026-07-01 PBD770 - Jul 1, 10:00 UTCJul 1, 12:25 UTC2h 25m
2026-07-01 PBD993 - Jul 1, 08:05 UTCJul 1, 08:20 UTC15m
2026-06-30 PBD840 - Jun 30, 11:55 UTCJun 30, 12:20 UTC25m
2026-06-30 PBD839 - Jun 30, 10:10 UTCJun 30, 10:55 UTC45m
2026-06-29 PBD770 - Jun 29, 10:04 UTCJun 29, 10:34 UTC30m
2026-06-26 PBD980 - Jun 26, 12:29 UTCJun 26, 14:19 UTC1h 50m
2026-06-25 PBD170 - Jun 25, 09:05 UTCJun 25, 09:14 UTC10m
2026-06-22 PBD587 LED → KGD Jun 22, 11:50 UTCJun 22, 13:14 UTC1h 25m
2026-06-22 PBD530 - Jun 22, 09:40 UTCJun 22, 10:55 UTC1h 15m
2026-06-21 PBD530 - Jun 21, 13:50 UTCJun 22, 10:55 UTC21h 5m
2026-06-21 PBD530 - Jun 21, 13:34 UTCJun 22, 10:55 UTC21h 20m
2026-06-21 PBD769 - Jun 21, 11:44 UTCJun 21, 12:04 UTC20m
2026-06-18 PBD862 IST → IST Jun 18, 17:30 UTCJun 18, 18:00 UTC30m
2026-06-17 PBD958 - Jun 17, 15:35 UTCJun 17, 17:15 UTC1h 40m
2026-06-17 PBD957 - Jun 17, 14:00 UTCJun 17, 14:20 UTC20m
2026-06-15 PBD6548 - Jun 15, 14:05 UTCJun 16, 04:00 UTC13h 55m
2026-06-15 PBD6905 - Jun 15, 05:40 UTCJun 15, 05:55 UTC15m
2026-06-14 PBD262 KGD → VKO Jun 14, 09:45 UTCJun 14, 10:45 UTC1h 0m
2026-06-14 PBD261 VKO → KGD Jun 14, 07:15 UTCJun 14, 07:40 UTC25m
2026-06-12 PBD738 VKO → IST Jun 12, 13:50 UTCJun 12, 20:50 UTC7h 0m
2026-06-12 PBD737 IST → IST Jun 12, 10:35 UTCJun 12, 11:30 UTC55m
2026-06-10 PBD980 - Jun 10, 15:25 UTCJun 11, 06:25 UTC15h 0m
2026-06-10 PBD979 - Jun 10, 12:25 UTCJun 10, 14:05 UTC1h 40m
2026-06-09 PBD994 - Jun 9, 13:55 UTCJun 9, 14:25 UTC30m
2026-06-09 PBD769 - Jun 9, 12:20 UTCJun 9, 12:40 UTC20m
2026-06-08 PBD340 - Jun 8, 07:35 UTCJun 8, 08:35 UTC1h 0m
2026-06-07 PBD6913 SVO → SVO Jun 7, 10:35 UTCJun 7, 11:05 UTC30m
2026-06-07 PBD6864 GSV → GSV Jun 7, 00:55 UTCJun 7, 01:20 UTC25m
2026-06-06 PBD330 GSV → GSV Jun 6, 06:30 UTCJun 6, 06:35 UTC5m
2026-06-04 PBD405 - Jun 4, 20:30 UTCJun 4, 21:05 UTC35m
2026-06-04 PBD206 SVO → VKO Jun 4, 15:35 UTCJun 4, 16:35 UTC1h 0m
2026-06-04 PBD587 LED → KGD Jun 4, 11:40 UTCJun 4, 12:25 UTC45m
2026-06-04 PBD527 - Jun 4, 05:25 UTCJun 4, 05:40 UTC15m
2026-06-03 PBD571 - Jun 3, 16:40 UTCJun 3, 17:05 UTC25m
2026-06-03 PBD528 - Jun 3, 13:55 UTCJun 3, 14:15 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-73303 page for operator, model, and routing details .

Mode-S 151E57 frequently asked

What is Mode-S code 151E57?
151E57 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73303.
Where is Mode-S 151E57 registered?
Mode-S code 151E57 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E57 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E57, octal 05217127, decimal 1,384,023.
What flights does 151E57 operate?
Mode-S 151E57 has broadcast 20 distinct callsigns, including PBD894, PBD893, PBD530, PBD527, PBD206.