Apparatus

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sensors Mode-S transponder

151EFA

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73466 · AIRBUS A-321neo

Hex
151EFA
Octal
05217372
Decimal
1,384,186
Country
RU
Tail
RA-73466
Type
A21N
No current signal · last broadcast 5h ago
Flights observed
80
Distinct callsigns
8
Country
RU
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 151EFA.

Country allocation

The ICAO 24-bit address 151EFA 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 8 distinct

Callsign Airline Flights Last seen
SBI3006 S7 Airlines (Siberia Airlines) 23 2026-05-23
SBI3062 S7 Airlines (Siberia Airlines) 22 2026-05-28
SBI3046 S7 Airlines (Siberia Airlines) 15 2026-05-26
SBI3060 S7 Airlines (Siberia Airlines) 11 2026-05-26
SBI3061 S7 Airlines (Siberia Airlines) 6 2026-05-13
SBI3059 S7 Airlines (Siberia Airlines) 1 2026-05-29
SBI3045 S7 Airlines (Siberia Airlines) 1 2026-05-03
SBI3005 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SBI3059 DME → NER May 29, 18:55 UTCMay 29, 20:10 UTC1h 15m
2026-05-28 SBI3062 BQS → DME May 28, 21:20 UTCMay 29, 12:15 UTC14h 55m
2026-05-28 SBI3062 BQS → DME May 28, 12:50 UTCMay 28, 13:05 UTC15m
2026-05-27 SBI3062 BQS → DME May 27, 21:55 UTCMay 28, 12:15 UTC14h 20m
2026-05-26 SBI3046 HTA → DME May 26, 23:39 UTCMay 27, 22:25 UTC22h 45m
2026-05-26 SBI3060 NER → DME May 26, 07:15 UTCMay 27, 00:25 UTC17h 10m
2026-05-25 SBI3060 NER → DME May 25, 10:45 UTCMay 26, 09:35 UTC22h 49m
2026-05-24 SBI3062 BQS → DME May 24, 21:15 UTCMay 25, 12:10 UTC14h 55m
2026-05-23 SBI3062 BQS → DME May 23, 22:30 UTCMay 24, 13:10 UTC14h 40m
2026-05-23 SBI3006 YKS → DME May 23, 05:40 UTCMay 23, 22:35 UTC16h 55m
2026-05-21 SBI3062 BQS → DME May 21, 11:55 UTCMay 21, 12:40 UTC45m
2026-05-20 SBI3062 BQS → DME May 20, 11:10 UTCMay 20, 12:35 UTC1h 25m
2026-05-18 SBI3060 NER → DME May 18, 19:00 UTCMay 19, 08:35 UTC13h 35m
2026-05-17 SBI3006 YKS → DME May 17, 05:55 UTCMay 17, 23:15 UTC17h 20m
2026-05-16 SBI3006 YKS → DME May 16, 19:45 UTCMay 17, 07:30 UTC11h 45m
2026-05-16 SBI3006 YKS → DME May 16, 05:30 UTCMay 16, 19:45 UTC14h 16m
2026-05-15 SBI3006 YKS → DME May 15, 19:40 UTCMay 16, 06:10 UTC10h 31m
2026-05-15 SBI3006 YKS → DME May 15, 06:35 UTCMay 16, 06:10 UTC23h 35m
2026-05-15 SBI3006 YKS → DME May 15, 05:45 UTCMay 15, 19:50 UTC14h 4m
2026-05-14 SBI3006 YKS → DME May 14, 20:20 UTCMay 15, 07:20 UTC11h 0m
2026-05-13 SBI3061 DME → BQS May 13, 21:30 UTCMay 14, 20:20 UTC22h 50m
2026-05-13 SBI3062 BQS → DME May 13, 10:55 UTCMay 13, 21:50 UTC10h 55m
2026-05-12 SBI3062 BQS → DME May 12, 22:20 UTCMay 13, 12:20 UTC14h 0m
2026-05-12 SBI3006 YKS → DME May 12, 05:45 UTCMay 12, 22:25 UTC16h 40m
2026-05-11 SBI3006 YKS → DME May 11, 18:15 UTCMay 12, 08:15 UTC14h 0m
2026-05-10 SBI3006 YKS → DME May 10, 18:39 UTCMay 11, 08:25 UTC13h 45m
2026-05-10 SBI3006 YKS → DME May 10, 06:35 UTCMay 11, 06:30 UTC23h 55m
2026-05-10 SBI3006 YKS → DME May 10, 05:55 UTCMay 10, 20:00 UTC14h 5m
2026-05-09 SBI3006 YKS → DME May 9, 18:25 UTCMay 10, 07:30 UTC13h 5m
2026-05-08 SBI3046 HTA → DME May 8, 23:35 UTCMay 9, 00:30 UTC55m
2026-05-05 SBI3046 HTA → DME May 5, 17:40 UTCMay 6, 00:31 UTC6h 50m
2026-05-04 SBI3046 HTA → DME May 4, 23:45 UTCMay 5, 22:25 UTC22h 40m
2026-05-04 SBI3046 HTA → DME May 4, 17:40 UTCMay 5, 00:30 UTC6h 51m
2026-05-03 SBI3045 DME → HTA May 3, 19:30 UTCMay 4, 18:10 UTC22h 40m
2026-05-03 SBI3006 YKS → DME May 3, 06:00 UTCMay 3, 19:34 UTC13h 35m
2026-05-02 SBI3006 YKS → DME May 2, 20:35 UTCMay 3, 19:34 UTC22h 59m
2026-05-02 SBI3006 YKS → DME May 2, 19:45 UTCMay 3, 18:25 UTC22h 39m
2026-05-02 SBI3006 YKS → DME May 2, 08:35 UTCMay 3, 07:25 UTC22h 49m
2026-05-02 SBI3060 NER → DME May 2, 07:15 UTCMay 3, 06:30 UTC23h 14m
2026-05-01 SBI3060 NER → DME May 1, 20:35 UTCMay 2, 20:30 UTC23h 56m
2026-05-01 SBI3060 NER → DME May 1, 20:10 UTCMay 2, 08:40 UTC12h 30m
2026-04-30 SBI3062 BQS → DME Apr 30, 13:05 UTCApr 30, 13:15 UTC10m
2026-04-30 SBI3062 BQS → DME Apr 30, 11:00 UTCApr 30, 12:20 UTC1h 20m
2026-04-29 SBI3062 BQS → DME Apr 29, 11:05 UTCApr 29, 11:45 UTC40m
2026-04-27 SBI3006 YKS → DME Apr 27, 18:45 UTCApr 28, 07:40 UTC12h 55m
2026-04-26 SBI3061 DME → BQS Apr 26, 21:10 UTCApr 27, 12:30 UTC15h 20m
2026-04-25 SBI3046 HTA → DME Apr 25, 14:30 UTCApr 26, 00:20 UTC9h 50m
2026-04-24 SBI3060 NER → DME Apr 24, 19:15 UTCApr 25, 09:30 UTC14h 15m
2026-04-24 SBI3060 NER → DME Apr 24, 10:45 UTCApr 25, 09:30 UTC22h 45m
2026-04-23 SBI3062 BQS → DME Apr 23, 21:15 UTCApr 24, 19:25 UTC22h 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-73466 page for operator, model, and routing details .

Mode-S 151EFA frequently asked

What is Mode-S code 151EFA?
151EFA is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73466.
Where is Mode-S 151EFA registered?
Mode-S code 151EFA is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151EFA 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 151EFA, octal 05217372, decimal 1,384,186.
What flights does 151EFA operate?
Mode-S 151EFA has broadcast 8 distinct callsigns, including SBI3006, SBI3062, SBI3046, SBI3060, SBI3061.