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sensors Mode-S transponder

151E1B

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73243 · BOEING 737-800

Hex
151E1B
Octal
05217033
Decimal
1,383,963
Country
RU
Tail
RA-73243
Type
B738
Broadcasting now · callsign PBD6547 · 36,000 ft
Flights observed
136
Distinct callsigns
20
Country
RU
Last broadcast
2h ago

Current position

151E1B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 151E1B 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 - 11 2026-06-19
PBD855 - 8 2026-06-19
PBD835 - 8 2026-06-15
PBD859 - 6 2026-06-11
PBD839 Pobeda 6 2026-05-16
PBD836 - 6 2026-06-15
PBD840 Pobeda 5 2026-05-31
PBD264 Pobeda 5 2026-04-21
PBD860 - 4 2026-06-20
PBD958 - 3 2026-07-08
PBD263 Pobeda 3 2026-06-10
PBD240 - 3 2026-04-26
PBD993 - 2 2026-05-30
PBD730 - 2 2026-06-18
PBD714 - 2 2026-05-26
PBD6840 Pobeda 2 2026-05-01
PBD565 - 2 2026-07-10
PBD529 Pobeda 2 2026-05-04
PBD424 - 2 2026-06-09
PBD968 - 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 PBD6547 - Jul 14, 01:00 UTCJul 14, 01:25 UTC25m
2026-07-11 PBD519 - Jul 11, 08:20 UTCJul 11, 08:40 UTC20m
2026-07-10 PBD206 - Jul 10, 18:35 UTCJul 10, 18:50 UTC15m
2026-07-10 PBD565 - Jul 10, 13:25 UTCJul 10, 13:45 UTC20m
2026-07-10 PBD507 - Jul 10, 05:00 UTCJul 10, 05:10 UTC10m
2026-07-09 PBD956 - Jul 9, 09:35 UTCJul 9, 11:15 UTC1h 40m
2026-07-08 PBD958 - Jul 8, 16:20 UTCJul 9, 08:25 UTC16h 5m
2026-07-07 PBD958 - Jul 7, 16:45 UTCJul 7, 17:05 UTC20m
2026-07-05 PBD6866 GSV → GSV Jul 5, 20:10 UTCJul 5, 20:40 UTC30m
2026-07-04 PBD6831 - Jul 4, 18:45 UTCJul 4, 19:15 UTC30m
2026-07-03 PBD958 - Jul 3, 14:10 UTCJul 3, 14:30 UTC20m
2026-07-02 PBD6819 - Jul 2, 16:10 UTCJul 2, 16:45 UTC35m
2026-07-01 PBD954 - Jul 1, 08:10 UTCJul 1, 09:45 UTC1h 35m
2026-07-01 PBD953 - Jul 1, 05:45 UTCJul 1, 06:15 UTC30m
2026-06-28 PBD6550 - Jun 28, 22:49 UTCJun 29, 01:34 UTC2h 45m
2026-06-20 PBD860 - Jun 20, 16:59 UTCJun 20, 17:24 UTC25m
2026-06-19 PBD856 - Jun 19, 11:14 UTCJun 19, 11:39 UTC25m
2026-06-19 PBD855 - Jun 19, 08:40 UTCJun 19, 08:54 UTC15m
2026-06-18 PBD730 GSV → GSV Jun 18, 04:25 UTCJun 18, 05:45 UTC1h 20m
2026-06-17 PBD856 - Jun 17, 14:35 UTCJun 17, 19:35 UTC5h 0m
2026-06-17 PBD855 - Jun 17, 13:05 UTCJun 17, 13:25 UTC20m
2026-06-16 PBD856 - Jun 16, 16:00 UTCJun 17, 13:25 UTC21h 26m
2026-06-16 PBD734 - Jun 16, 07:15 UTCJun 16, 14:50 UTC7h 35m
2026-06-15 PBD836 - Jun 15, 11:00 UTCJun 16, 07:40 UTC20h 40m
2026-06-15 PBD835 - Jun 15, 08:20 UTCJun 15, 09:45 UTC1h 25m
2026-06-14 PBD835 - Jun 14, 12:10 UTCJun 15, 09:45 UTC21h 34m
2026-06-14 PBD855 - Jun 14, 10:20 UTCJun 14, 10:45 UTC25m
2026-06-12 PBD736 - Jun 12, 12:00 UTCJun 12, 13:45 UTC1h 45m
2026-06-12 PBD735 - Jun 12, 09:45 UTCJun 12, 11:05 UTC1h 20m
2026-06-11 PBD860 AYT → AYT Jun 11, 12:55 UTCJun 12, 11:05 UTC22h 10m
2026-06-11 PBD860 AYT → AYT Jun 11, 12:05 UTCJun 12, 10:45 UTC22h 41m
2026-06-11 PBD859 - Jun 11, 10:15 UTCJun 11, 10:50 UTC35m
2026-06-10 PBD263 VKO → KGD Jun 10, 19:35 UTCJun 10, 20:25 UTC50m
2026-06-10 PBD856 - Jun 10, 16:05 UTCJun 10, 16:25 UTC20m
2026-06-10 PBD856 - Jun 10, 13:20 UTCJun 10, 14:20 UTC1h 0m
2026-06-10 PBD855 VKO → VKO Jun 10, 09:55 UTCJun 10, 12:15 UTC2h 20m
2026-06-10 PBD414 - Jun 10, 07:35 UTCJun 10, 08:00 UTC25m
2026-06-09 PBD856 - Jun 9, 13:20 UTCJun 9, 14:20 UTC1h 0m
2026-06-09 PBD855 VKO → VKO Jun 9, 11:55 UTCJun 9, 12:20 UTC25m
2026-06-09 PBD855 VKO → VKO Jun 9, 09:30 UTCJun 9, 10:00 UTC30m
2026-06-09 PBD424 - Jun 9, 07:45 UTCJun 9, 08:20 UTC35m
2026-06-09 PBD424 - Jun 9, 06:45 UTCJun 9, 07:05 UTC20m
2026-06-09 PBD730 - Jun 9, 02:40 UTCJun 9, 02:55 UTC15m
2026-06-08 PBD836 - Jun 8, 10:25 UTCJun 8, 12:10 UTC1h 45m
2026-06-08 PBD835 VKO → VKO Jun 8, 09:10 UTCJun 8, 09:30 UTC20m
2026-06-08 PBD835 VKO → VKO Jun 8, 07:50 UTCJun 8, 08:30 UTC40m
2026-06-07 PBD6941 SVO → SVO Jun 7, 16:15 UTCJun 7, 16:45 UTC30m
2026-06-06 PBD6919 - Jun 6, 09:30 UTCJun 6, 09:50 UTC20m
2026-06-05 PBD354 - Jun 5, 20:20 UTCJun 5, 20:45 UTC25m
2026-06-05 PBD353 - Jun 5, 16:30 UTCJun 5, 16:40 UTC10m

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-73243 page for operator, model, and routing details .

Mode-S 151E1B frequently asked

What is Mode-S code 151E1B?
151E1B is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73243.
Where is Mode-S 151E1B registered?
Mode-S code 151E1B is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E1B broadcasting right now?
Yes. Mode-S 151E1B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E1B, octal 05217033, decimal 1,383,963.
What flights does 151E1B operate?
Mode-S 151E1B has broadcast 20 distinct callsigns, including PBD856, PBD855, PBD835, PBD859, PBD839.