Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151ECF

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73423 · AIRBUS A-320

Hex
151ECF
Octal
05217317
Decimal
1,384,143
Country
RU
Tail
RA-73423
Type
A320
No current signal · last broadcast 14h ago
Flights observed
173
Distinct callsigns
20
Country
RU
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 151ECF.

Country allocation

The ICAO 24-bit address 151ECF 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
SBI2582 - 14 2026-07-03
SBI3034 - 10 2026-07-13
SBI3018 S7 Airlines (Siberia Airlines) 10 2026-05-18
SBI3022 - 9 2026-07-13
SBI2572 S7 Airlines (Siberia Airlines) 8 2026-06-06
SBI3021 - 7 2026-07-12
SBI3042 - 6 2026-07-05
SBI1214 S7 Airlines (Siberia Airlines) 6 2026-05-26
SBI3031 - 5 2026-07-11
SBI2629 S7 Airlines (Siberia Airlines) 5 2026-05-27
SBI2571 S7 Airlines (Siberia Airlines) 5 2026-04-15
SBI1213 S7 Airlines (Siberia Airlines) 5 2026-05-26
SBI5303 - 4 2026-07-08
SBI3032 - 4 2026-06-20
SBI2625 S7 Airlines (Siberia Airlines) 4 2026-06-06
SBI2605 S7 Airlines (Siberia Airlines) 4 2026-05-07
SBI2630 - 3 2026-07-01
SBI2606 S7 Airlines (Siberia Airlines) 3 2026-05-08
SBI2594 S7 Airlines (Siberia Airlines) 3 2026-04-23
SBI2581 S7 Airlines (Siberia Airlines) 3 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SBI3034 - Jul 13, 22:55 UTCJul 14, 04:55 UTC6h 0m
2026-07-13 SBI3022 - Jul 13, 04:50 UTCJul 13, 23:35 UTC18h 45m
2026-07-12 SBI3021 - Jul 12, 13:25 UTCJul 13, 05:31 UTC16h 5m
2026-07-11 SBI3031 - Jul 11, 18:10 UTCJul 12, 03:20 UTC9h 10m
2026-07-10 SBI2514 OVB → DME Jul 10, 17:20 UTCJul 10, 17:40 UTC20m
2026-07-08 SBI5303 - Jul 8, 22:00 UTCJul 9, 03:35 UTC5h 35m
2026-07-08 SBI1073 DME → KUF Jul 8, 12:40 UTCJul 8, 12:50 UTC10m
2026-07-06 SBI3040 - Jul 6, 22:35 UTCJul 7, 16:35 UTC18h 0m
2026-07-05 SBI3021 - Jul 5, 13:20 UTCJul 6, 05:25 UTC16h 5m
2026-07-05 SBI3042 - Jul 5, 08:10 UTCJul 5, 08:20 UTC10m
2026-07-03 SBI3022 - Jul 3, 13:20 UTCJul 4, 05:25 UTC16h 5m
2026-07-03 SBI2582 - Jul 3, 05:50 UTCJul 4, 05:25 UTC23h 35m
2026-07-03 SBI2582 - Jul 3, 05:20 UTCJul 3, 13:55 UTC8h 35m
2026-07-01 SBI2630 - Jul 1, 21:50 UTCJul 2, 03:30 UTC5h 40m
2026-06-29 SBI3040 - Jun 29, 22:44 UTCJun 30, 04:40 UTC5h 56m
2026-06-28 SBI3031 - Jun 28, 21:24 UTCJun 28, 22:04 UTC40m
2026-06-28 SBI3031 - Jun 28, 03:35 UTCJun 28, 22:04 UTC18h 30m
2026-06-27 SBI3031 - Jun 27, 23:50 UTCJun 28, 22:04 UTC22h 15m
2026-06-27 SBI3042 - Jun 27, 07:30 UTCJun 28, 03:40 UTC20h 10m
2026-06-25 SBI1006 LED → DME Jun 25, 16:29 UTCJun 26, 06:39 UTC14h 10m
2026-06-25 SBI1005 - Jun 25, 14:55 UTCJun 25, 15:15 UTC20m
2026-06-25 SBI3034 - Jun 25, 01:09 UTCJun 25, 09:29 UTC8h 20m
2026-06-24 SBI2582 - Jun 24, 03:50 UTCJun 25, 01:40 UTC21h 50m
2026-06-24 SBI2582 - Jun 24, 03:44 UTCJun 25, 01:40 UTC21h 55m
2026-06-23 SBI2582 - Jun 23, 21:05 UTCJun 24, 05:20 UTC8h 15m
2026-06-22 SBI3034 - Jun 22, 22:59 UTCJun 23, 16:29 UTC17h 30m
2026-06-21 SBI2582 - Jun 21, 21:44 UTCJun 22, 06:15 UTC8h 30m
2026-06-20 SBI3032 - Jun 20, 21:49 UTCJun 21, 21:44 UTC23h 55m
2026-06-20 SBI3032 - Jun 20, 21:10 UTCJun 21, 03:19 UTC6h 10m
2026-06-20 SBI2582 - Jun 20, 03:49 UTCJun 21, 03:19 UTC23h 30m
2026-06-20 SBI2582 - Jun 20, 03:39 UTCJun 20, 21:49 UTC18h 10m
2026-06-19 SBI2582 - Jun 19, 21:54 UTCJun 20, 21:44 UTC23h 50m
2026-06-19 SBI1007 DME → LED Jun 19, 16:34 UTCJun 19, 16:59 UTC25m
2026-06-18 SBI3031 - Jun 18, 21:20 UTCJun 19, 03:20 UTC5h 59m
2026-06-17 SBI5303 - Jun 17, 22:20 UTCJun 18, 04:05 UTC5h 45m
2026-06-16 SBI3032 - Jun 16, 21:50 UTCJun 17, 17:20 UTC19h 30m
2026-06-16 SBI3032 - Jun 16, 21:25 UTCJun 17, 17:20 UTC19h 55m
2026-06-15 SBI3022 - Jun 15, 04:45 UTCJun 15, 05:25 UTC40m
2026-06-14 SBI3021 DME → IKT Jun 14, 14:45 UTCJun 14, 15:25 UTC40m
2026-06-14 SBI2632 - Jun 14, 08:00 UTCJun 14, 08:15 UTC15m
2026-06-12 SBI2582 - Jun 12, 23:00 UTCJun 13, 15:00 UTC15h 59m
2026-06-12 SBI2566 OMS → DME Jun 12, 04:05 UTCJun 12, 04:15 UTC10m
2026-06-11 SBI3022 - Jun 11, 05:50 UTCJun 12, 02:20 UTC20h 31m
2026-06-10 SBI3021 DME → IKT Jun 10, 13:30 UTCJun 11, 06:10 UTC16h 40m
2026-06-10 SBI3034 UUD → DME Jun 10, 08:20 UTCJun 10, 08:45 UTC25m
2026-06-09 SBI3034 UUD → DME Jun 9, 23:15 UTCJun 10, 05:10 UTC5h 55m
2026-06-09 SBI2566 OMS → DME Jun 9, 02:40 UTCJun 9, 23:45 UTC21h 5m
2026-06-08 SBI1008 LED → DME Jun 8, 18:00 UTCJun 9, 03:25 UTC9h 25m
2026-06-07 SBI2582 NSK → DME Jun 7, 22:10 UTCJun 8, 05:00 UTC6h 50m
2026-06-07 SBI2581 DME → NSK Jun 7, 05:10 UTCJun 7, 22:25 UTC17h 15m

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-73423 page for operator, model, and routing details .

Mode-S 151ECF frequently asked

What is Mode-S code 151ECF?
151ECF is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73423.
Where is Mode-S 151ECF registered?
Mode-S code 151ECF is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151ECF broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151ECF, octal 05217317, decimal 1,384,143.
What flights does 151ECF operate?
Mode-S 151ECF has broadcast 20 distinct callsigns, including SBI2582, SBI3034, SBI3018, SBI3022, SBI2572.