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 3h ago
Flights observed
135
Distinct callsigns
14
Country
RU
Last broadcast
3h 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 14 distinct

Callsign Airline Flights Last seen
SBI3006 - 35 2026-07-09
SBI3062 - 26 2026-06-25
SBI3046 - 20 2026-07-12
SBI3060 - 16 2026-07-10
SBI3061 - 9 2026-07-04
SBI3045 - 8 2026-07-11
SBI3048 - 6 2026-07-03
SBI3047 S7 Airlines (Siberia Airlines) 4 2026-07-03
SBI3040 - 3 2026-07-10
SBI3034 - 2 2026-06-14
SBI3022 - 2 2026-06-19
SBI3005 S7 Airlines (Siberia Airlines) 2 2026-05-31
SBI3059 S7 Airlines (Siberia Airlines) 1 2026-06-22
SBI3039 - 1 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SBI3039 - Jul 13, 22:35 UTCJul 14, 04:15 UTC5h 40m
2026-07-12 SBI3046 - Jul 12, 07:25 UTCJul 12, 07:40 UTC15m
2026-07-11 SBI3045 - Jul 11, 18:00 UTCJul 11, 21:45 UTC3h 45m
2026-07-10 SBI3060 - Jul 10, 20:50 UTCJul 11, 08:40 UTC11h 50m
2026-07-10 SBI3040 - Jul 10, 03:20 UTCJul 10, 21:00 UTC17h 40m
2026-07-09 SBI3040 - Jul 9, 22:35 UTCJul 10, 21:00 UTC22h 25m
2026-07-09 SBI3040 - Jul 9, 22:10 UTCJul 10, 04:10 UTC6h 0m
2026-07-09 SBI3006 - Jul 9, 06:35 UTCJul 10, 04:10 UTC21h 35m
2026-07-09 SBI3006 - Jul 9, 05:55 UTCJul 10, 04:10 UTC22h 15m
2026-07-08 SBI3006 - Jul 8, 19:30 UTCJul 9, 07:30 UTC12h 0m
2026-07-06 SBI3006 - Jul 6, 19:35 UTCJul 7, 07:30 UTC11h 55m
2026-07-04 SBI3061 - Jul 4, 21:40 UTCJul 4, 22:55 UTC1h 15m
2026-07-04 SBI3061 - Jul 4, 02:35 UTCJul 4, 22:55 UTC20h 20m
2026-07-03 SBI3048 - Jul 3, 20:20 UTCJul 4, 03:20 UTC7h 0m
2026-07-03 SBI3047 DME → HTA Jul 3, 02:35 UTCJul 3, 21:00 UTC18h 25m
2026-07-03 SBI3048 - Jul 3, 02:05 UTCJul 3, 21:00 UTC18h 55m
2026-07-02 SBI3048 - Jul 2, 20:35 UTCJul 3, 20:30 UTC23h 55m
2026-07-02 SBI3047 DME → HTA Jul 2, 16:50 UTCJul 3, 02:50 UTC10h 0m
2026-07-01 SBI3006 - Jul 1, 06:05 UTCJul 2, 00:30 UTC18h 25m
2026-06-30 SBI3006 - Jun 30, 19:55 UTCJul 1, 07:40 UTC11h 45m
2026-06-30 SBI3048 HTA → DME Jun 30, 03:00 UTCJun 30, 20:55 UTC17h 55m
2026-06-29 SBI3048 HTA → DME Jun 29, 20:35 UTCJun 30, 20:10 UTC23h 36m
2026-06-28 SBI3045 DME → HTA Jun 28, 04:59 UTCJun 28, 18:05 UTC13h 5m
2026-06-27 SBI3045 DME → HTA Jun 27, 20:34 UTCJun 28, 18:05 UTC21h 30m
2026-06-27 SBI3045 DME → HTA Jun 27, 20:04 UTCJun 28, 18:05 UTC22h 0m
2026-06-27 SBI3047 DME → HTA Jun 27, 16:44 UTCJun 27, 16:55 UTC10m
2026-06-25 SBI3062 - Jun 25, 11:39 UTCJun 25, 12:10 UTC30m
2026-06-22 SBI3059 DME → NER Jun 22, 20:04 UTCJun 22, 20:19 UTC15m
2026-06-20 SBI3047 DME → HTA Jun 20, 20:45 UTCJun 20, 21:14 UTC30m
2026-06-19 SBI3022 - Jun 19, 08:50 UTCJun 19, 09:30 UTC40m
2026-06-18 SBI3022 - Jun 18, 13:40 UTCJun 19, 05:19 UTC15h 39m
2026-06-17 SBI3062 - Jun 17, 12:55 UTCJun 17, 14:20 UTC1h 25m
2026-06-15 SBI3048 HTA → DME Jun 15, 16:49 UTCJun 16, 03:05 UTC10h 15m
2026-06-14 SBI3034 - Jun 14, 19:40 UTCJun 15, 08:35 UTC12h 55m
2026-06-14 SBI3034 - Jun 14, 12:40 UTCJun 15, 08:35 UTC19h 55m
2026-06-14 SBI3062 - Jun 14, 11:30 UTCJun 15, 08:35 UTC21h 5m
2026-06-12 SBI3006 - Jun 12, 18:45 UTCJun 13, 07:45 UTC12h 59m
2026-06-12 SBI3046 HTA → DME Jun 12, 03:40 UTCJun 12, 03:55 UTC15m
2026-06-11 SBI3045 DME → HTA Jun 11, 17:50 UTCJun 11, 18:25 UTC35m
2026-06-11 SBI3045 DME → HTA Jun 11, 14:30 UTCJun 11, 14:45 UTC15m
2026-06-09 SBI3062 BQS → DME Jun 9, 22:35 UTCJun 10, 11:55 UTC13h 20m
2026-06-09 SBI3006 YKS → DME Jun 9, 08:05 UTCJun 9, 08:15 UTC10m
2026-06-08 SBI3006 YKS → DME Jun 8, 18:30 UTCJun 9, 06:30 UTC12h 0m
2026-06-08 SBI3046 HTA → DME Jun 8, 00:35 UTCJun 8, 19:30 UTC18h 55m
2026-06-07 SBI3046 HTA → DME Jun 7, 23:50 UTCJun 8, 19:30 UTC19h 40m
2026-06-07 SBI3046 HTA → DME Jun 7, 15:45 UTCJun 8, 03:10 UTC11h 25m
2026-06-05 SBI3060 NER → DME Jun 5, 21:10 UTCJun 6, 08:45 UTC11h 35m
2026-06-05 SBI3060 NER → DME Jun 5, 11:40 UTCJun 6, 08:45 UTC21h 5m
2026-06-04 SBI3061 DME → BQS Jun 4, 21:10 UTCJun 5, 12:00 UTC14h 50m
2026-06-03 SBI3045 DME → HTA Jun 3, 14:25 UTCJun 4, 00:05 UTC9h 40m

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 3h 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 14 distinct callsigns, including SBI3006, SBI3062, SBI3046, SBI3060, SBI3061.