Apparatus

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sensors Mode-S transponder

151EFB

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73467 · BOEING 737-800

Hex
151EFB
Octal
05217373
Decimal
1,384,187
Country
RU
Tail
RA-73467
Type
B738
No current signal · last broadcast 5h ago
Flights observed
100
Distinct callsigns
18
Country
RU
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 151EFB.

Country allocation

The ICAO 24-bit address 151EFB 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 18 distinct

Callsign Airline Flights Last seen
SBI8872 - 31 2026-07-10
SBI8871 - 16 2026-07-13
SBI8882 - 11 2026-06-30
SBI8852 - 10 2026-07-09
SBI8874 - 8 2026-07-12
SBI8881 - 3 2026-06-05
SBI8862 - 3 2026-07-17
SBI8854 - 3 2026-04-25
SBI8836 - 3 2026-07-13
SBI8864 - 2 2026-07-17
SBI8861 - 2 2026-07-04
SBI8835 - 2 2026-07-15
SBI8888 - 1 2026-04-20
SBI8884 - 1 2026-04-17
SBI8873 - 1 2026-04-25
SBI8837 - 1 2026-07-17
SBI883 S7 Airlines (Siberia Airlines) 1 2026-05-26
SBI8802 - 1 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SBI8837 - Jul 17, 20:29 UTCJul 17, 21:05 UTC35m
2026-07-17 SBI8864 - Jul 17, 10:25 UTCJul 17, 10:44 UTC20m
2026-07-17 SBI8862 - Jul 17, 06:25 UTCJul 17, 06:35 UTC10m
2026-07-16 SBI8862 - Jul 16, 16:19 UTCJul 17, 02:30 UTC10h 10m
2026-07-15 SBI8835 - Jul 15, 18:25 UTCJul 16, 11:15 UTC16h 50m
2026-07-15 SBI8835 - Jul 15, 17:40 UTCJul 15, 17:50 UTC10m
2026-07-13 SBI8836 - Jul 13, 21:10 UTCJul 14, 13:30 UTC16h 20m
2026-07-13 SBI8871 - Jul 13, 05:20 UTCJul 13, 21:45 UTC16h 25m
2026-07-12 SBI8871 - Jul 12, 08:50 UTCJul 13, 06:45 UTC21h 55m
2026-07-12 SBI8874 - Jul 12, 07:40 UTCJul 13, 06:45 UTC23h 5m
2026-07-11 SBI8874 - Jul 11, 23:05 UTCJul 12, 08:55 UTC9h 50m
2026-07-11 SBI8862 - Jul 11, 00:30 UTCJul 11, 10:30 UTC10h 0m
2026-07-10 SBI8872 - Jul 10, 05:40 UTCJul 10, 11:45 UTC6h 5m
2026-07-09 SBI8852 - Jul 9, 05:25 UTCJul 9, 06:00 UTC35m
2026-07-07 SBI8874 - Jul 7, 04:35 UTCJul 7, 21:35 UTC17h 0m
2026-07-06 SBI8836 - Jul 6, 13:15 UTCJul 7, 12:45 UTC23h 30m
2026-07-05 SBI8836 - Jul 5, 23:45 UTCJul 6, 13:55 UTC14h 10m
2026-07-04 SBI8861 - Jul 4, 16:15 UTCJul 5, 02:05 UTC9h 50m
2026-07-03 SBI8802 - Jul 3, 00:40 UTCJul 3, 10:30 UTC9h 50m
2026-07-02 SBI8852 - Jul 2, 09:15 UTCJul 2, 09:30 UTC15m
2026-07-02 SBI8852 - Jul 2, 05:20 UTCJul 2, 05:45 UTC25m
2026-07-01 SBI8871 - Jul 1, 05:35 UTCJul 1, 05:45 UTC10m
2026-06-30 SBI8882 - Jun 30, 02:45 UTCJun 30, 03:15 UTC30m
2026-06-30 SBI8882 - Jun 30, 00:00 UTCJun 30, 00:30 UTC30m
2026-06-28 SBI8882 - Jun 28, 22:15 UTCJun 29, 14:39 UTC16h 25m
2026-06-28 SBI8852 - Jun 28, 05:24 UTCJun 28, 05:49 UTC25m
2026-06-26 SBI8882 - Jun 26, 22:05 UTCJun 26, 22:34 UTC30m
2026-06-26 SBI8852 - Jun 26, 05:35 UTCJun 26, 06:00 UTC25m
2026-06-25 SBI8882 - Jun 25, 00:35 UTCJun 25, 00:44 UTC10m
2026-06-24 SBI8882 - Jun 24, 21:54 UTCJun 24, 22:25 UTC30m
2026-06-23 SBI8872 - Jun 23, 05:29 UTCJun 23, 12:55 UTC7h 25m
2026-06-22 SBI8872 - Jun 22, 12:49 UTCJun 23, 12:45 UTC23h 55m
2026-06-22 SBI8872 - Jun 22, 11:44 UTCJun 23, 06:55 UTC19h 10m
2026-06-22 SBI8872 - Jun 22, 05:10 UTCJun 22, 13:19 UTC8h 10m
2026-06-19 SBI8882 - Jun 19, 00:20 UTCJun 19, 00:34 UTC15m
2026-06-18 SBI8871 - Jun 18, 06:45 UTCJun 18, 12:55 UTC6h 10m
2026-06-15 SBI8872 - Jun 15, 06:24 UTCJun 15, 13:30 UTC7h 5m
2026-06-14 SBI8852 - Jun 14, 07:00 UTCJun 14, 11:20 UTC4h 20m
2026-06-12 SBI8874 - Jun 12, 05:30 UTCJun 12, 12:30 UTC7h 0m
2026-06-11 SBI8874 - Jun 11, 12:50 UTCJun 12, 12:30 UTC23h 40m
2026-06-11 SBI8872 - Jun 11, 11:25 UTCJun 12, 06:15 UTC18h 51m
2026-06-11 SBI8872 - Jun 11, 05:50 UTCJun 11, 12:50 UTC7h 0m
2026-06-09 SBI8872 - Jun 9, 12:55 UTCJun 9, 14:15 UTC1h 20m
2026-06-06 SBI8872 - Jun 6, 05:55 UTCJun 6, 13:05 UTC7h 10m
2026-06-05 SBI8881 - Jun 5, 20:25 UTCJun 5, 20:45 UTC20m
2026-06-02 SBI8872 - Jun 2, 11:25 UTCJun 2, 11:55 UTC30m
2026-06-01 SBI8872 - Jun 1, 14:15 UTCJun 2, 11:55 UTC21h 40m
2026-06-01 SBI8871 - Jun 1, 05:50 UTCJun 1, 14:45 UTC8h 55m
2026-06-01 SBI8871 - Jun 1, 04:15 UTCJun 1, 04:40 UTC25m
2026-05-31 SBI8864 - May 31, 09:40 UTCMay 31, 09:55 UTC15m

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-73467 page for operator, model, and routing details .

Mode-S 151EFB frequently asked

What is Mode-S code 151EFB?
151EFB is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73467.
Where is Mode-S 151EFB registered?
Mode-S code 151EFB is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151EFB broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151EFB, octal 05217373, decimal 1,384,187.
What flights does 151EFB operate?
Mode-S 151EFB has broadcast 18 distinct callsigns, including SBI8872, SBI8871, SBI8882, SBI8852, SBI8874.