sensors Mode-S transponder

151EC4

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73412 · BOEING 737-800

Hex
151EC4
Octal
05217304
Decimal
1,384,132
Country
RU
Tail
RA-73412
Type
B738
No current signal · last broadcast 21h ago
Flights observed
119
Distinct callsigns
20
Country
RU
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 151EC4.

Country allocation

The ICAO 24-bit address 151EC4 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SBI6327 IKT → OSS May 29, 06:30 UTCMay 29, 07:45 UTC1h 15m
2026-05-28 SBI6327 IKT → OSS May 28, 11:50 UTCMay 29, 07:45 UTC19h 55m
2026-05-27 SBI6419 IKT → UFA May 27, 20:50 UTCMay 28, 12:30 UTC15h 40m
2026-05-27 SBI6419 IKT → UFA May 27, 15:55 UTCMay 28, 12:30 UTC20h 35m
2026-05-27 SBI6419 IKT → UFA May 27, 10:10 UTCMay 28, 06:20 UTC20h 10m
2026-05-27 SBI6415 IKT → SVX May 27, 04:39 UTCMay 27, 21:10 UTC16h 31m
2026-05-26 SBI6415 IKT → SVX May 26, 22:15 UTCMay 27, 21:00 UTC22h 45m
2026-05-25 SBI5066 KGD → OVB May 25, 02:15 UTCMay 25, 11:55 UTC9h 40m
2026-05-24 SBI5066 KGD → OVB May 24, 11:15 UTCMay 25, 08:40 UTC21h 25m
2026-05-23 SBI5240 IKT → OVB May 23, 14:50 UTCMay 24, 01:15 UTC10h 26m
2026-05-22 SBI5257 OVB → UUS May 22, 16:35 UTCMay 23, 04:10 UTC11h 34m
2026-05-22 SBI5541 OVB → FRU May 22, 08:20 UTCMay 22, 12:45 UTC4h 25m
2026-05-21 SBI5542 FRU → OVB May 21, 12:20 UTCMay 22, 08:50 UTC20h 30m
2026-05-21 SBI5542 FRU → OVB May 21, 08:35 UTCMay 21, 12:50 UTC4h 15m
2026-05-20 SBI5542 FRU → OVB May 20, 15:20 UTCMay 21, 12:50 UTC21h 30m
2026-05-20 SBI5541 OVB → FRU May 20, 08:20 UTCMay 20, 15:45 UTC7h 25m
2026-05-20 SBI5250 PKC → OVB May 20, 05:30 UTCMay 20, 06:05 UTC35m
2026-05-19 SBI5103 OVB → AER May 19, 07:35 UTCMay 20, 06:05 UTC22h 31m
2026-05-18 SBI5103 OVB → AER May 18, 17:20 UTCMay 19, 08:20 UTC14h 59m
2026-05-18 SBI5728 XIY → OVB May 18, 03:05 UTCMay 19, 02:55 UTC23h 49m
2026-05-18 SBI5232 IKT → OVB May 18, 02:40 UTCMay 18, 17:40 UTC15h 0m
2026-05-17 SBI6416 SVX → IKT May 17, 11:50 UTCMay 18, 03:05 UTC15h 15m
2026-05-17 SBI6415 IKT → SVX May 17, 06:10 UTCMay 18, 03:05 UTC20h 55m
2026-05-16 SBI6420 UFA → IKT May 16, 12:01 UTCMay 17, 06:55 UTC18h 54m
2026-05-16 SBI6419 IKT → UFA May 16, 05:25 UTCMay 16, 12:40 UTC7h 16m
2026-05-15 SBI6419 IKT → UFA May 15, 13:05 UTCMay 16, 12:40 UTC23h 35m
2026-05-15 SBI6328 OSS → IKT May 15, 12:00 UTCMay 16, 06:10 UTC18h 10m
2026-05-15 SBI6328 OSS → IKT May 15, 07:20 UTCMay 16, 06:10 UTC22h 50m
2026-05-15 SBI6328 OSS → IKT May 15, 06:20 UTCMay 15, 13:20 UTC7h 0m
2026-05-14 SBI6419 IKT → UFA May 14, 05:40 UTCMay 14, 06:10 UTC30m
2026-05-14 SBI6419 IKT → UFA May 14, 04:10 UTCMay 14, 04:20 UTC10m
2026-05-13 SBI6311 IKT → PKX May 13, 17:55 UTCMay 14, 00:15 UTC6h 20m
2026-05-13 SBI6328 OSS → IKT May 13, 06:20 UTCMay 13, 12:55 UTC6h 35m
2026-05-13 SBI6320 CAN → IKT May 13, 02:15 UTCMay 13, 02:30 UTC15m
2026-05-11 SBI6403 IKT → VVO May 11, 16:45 UTCMay 11, 17:00 UTC16m
2026-05-10 SBI6419 IKT → UFA May 10, 11:45 UTCMay 11, 06:30 UTC18h 45m
2026-05-10 SBI6419 IKT → UFA May 10, 07:04 UTCMay 11, 06:30 UTC23h 25m
2026-05-10 SBI6415 IKT → SVX May 10, 06:25 UTCMay 10, 12:30 UTC6h 5m
2026-05-09 SBI6420 UFA → IKT May 9, 05:45 UTCMay 9, 23:20 UTC17h 35m
2026-05-08 SBI6327 IKT → OSS May 8, 07:04 UTCMay 9, 02:15 UTC19h 10m
2026-05-08 SBI6327 IKT → OSS May 8, 06:09 UTCMay 9, 02:15 UTC20h 5m
2026-05-07 SBI6419 IKT → UFA May 7, 05:25 UTCMay 7, 15:10 UTC9h 45m
2026-05-07 SBI6419 IKT → UFA May 7, 04:00 UTCMay 7, 04:15 UTC15m
2026-05-07 SBI5255 OVB → UUD May 7, 00:30 UTCMay 7, 01:00 UTC30m
2026-05-05 SBI5208 VVO → OVB May 5, 18:20 UTCMay 6, 11:25 UTC17h 5m
2026-05-05 SBI6262 BKK → VVO May 5, 13:20 UTCMay 6, 11:25 UTC22h 5m
2026-05-04 SBI6261 VVO → BKK May 4, 19:10 UTCMay 5, 11:35 UTC16h 25m
2026-05-03 SBI6245 VVO → PVG May 3, 20:45 UTCMay 4, 02:30 UTC5h 45m
2026-05-02 SBI5203 OVB → VVO May 2, 16:20 UTCMay 2, 16:50 UTC30m
2026-05-02 SBI5565 OVB → TAS May 2, 07:30 UTCMay 2, 13:15 UTC5h 45m

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-73412 page for operator, model, and routing details .

Mode-S 151EC4 frequently asked

What is Mode-S code 151EC4?
151EC4 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73412.
Where is Mode-S 151EC4 registered?
Mode-S code 151EC4 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151EC4 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151EC4, octal 05217304, decimal 1,384,132.
What flights does 151EC4 operate?
Mode-S 151EC4 has broadcast 20 distinct callsigns, including SBI6419, SBI6415, SBI6327, SBI6420, SBI6328.