Apparatus

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sensors Mode-S transponder

151E28

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73256 · BOEING 737-800

Hex
151E28
Octal
05217050
Decimal
1,383,976
Country
RU
Tail
RA-73256
Type
B738
No current signal · last broadcast 11h ago
Flights observed
44
Distinct callsigns
20
Country
RU
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 151E28.

Country allocation

The ICAO 24-bit address 151E28 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
TYA104 NordStar 6 2026-05-17
TYA4702 - 5 2026-04-29
TYA9605 - 4 2026-06-03
TYA951 NordStar 4 2026-06-01
TYA4400 NordStar 2 2026-04-26
TYA412 NordStar 2 2026-05-24
TYA406 NordStar 2 2026-04-24
TYA142 NordStar 2 2026-06-02
TYA141 NordStar 2 2026-06-01
TYA131 NordStar 2 2026-05-30
TYA106 NordStar 2 2026-04-19
TYA102 NordStar 2 2026-05-04
TYA9018 - 1 2026-05-04
TYA4410 NordStar 1 2026-05-17
TYA4409 NordStar 1 2026-05-26
TYA4313 - 1 2026-05-20
TYA416 NordStar 1 2026-05-29
TYA415 NordStar 1 2026-05-29
TYA301 NordStar 1 2026-05-06
TYA132 NordStar 1 2026-05-21

Recent flights last 44

DateFlightRouteTakeoffLandingDuration
2026-06-03 TYA9605 - Jun 3, 12:40 UTCJun 3, 19:30 UTC6h 50m
2026-06-02 TYA9605 - Jun 2, 23:35 UTCJun 3, 19:30 UTC19h 55m
2026-06-02 TYA9605 - Jun 2, 20:55 UTCJun 3, 19:30 UTC22h 35m
2026-06-02 TYA9605 - Jun 2, 18:05 UTCJun 3, 13:45 UTC19h 40m
2026-06-02 TYA142 ABA → LED Jun 2, 15:05 UTCJun 3, 13:45 UTC22h 40m
2026-06-01 TYA141 LED → ABA Jun 1, 19:05 UTCJun 2, 13:05 UTC18h 0m
2026-06-01 TYA141 LED → ABA Jun 1, 16:15 UTCJun 2, 13:05 UTC20h 50m
2026-06-01 TYA951 SVX → VOG Jun 1, 13:40 UTCJun 1, 14:25 UTC45m
2026-05-30 TYA131 AER → ABA May 30, 20:50 UTCMay 30, 21:25 UTC35m
2026-05-29 TYA415 LED → NSK May 29, 22:10 UTCMay 30, 21:25 UTC23h 15m
2026-05-29 TYA142 ABA → LED May 29, 14:50 UTCMay 29, 22:45 UTC7h 55m
2026-05-29 TYA416 NSK → LED May 29, 02:45 UTCMay 29, 12:55 UTC10h 10m
2026-05-26 TYA4409 UFA → KJA May 26, 21:34 UTCMay 26, 22:09 UTC35m
2026-05-24 TYA412 NSK → AER May 24, 07:30 UTCMay 24, 10:30 UTC3h 0m
2026-05-21 TYA131 AER → ABA May 21, 21:10 UTCMay 21, 22:05 UTC55m
2026-05-21 TYA132 ABA → AER May 21, 07:55 UTCMay 21, 13:20 UTC5h 25m
2026-05-20 TYA4313 - May 20, 10:05 UTCMay 21, 09:35 UTC23h 30m
2026-05-20 TYA412 NSK → AER May 20, 09:35 UTCMay 21, 08:00 UTC22h 25m
2026-05-17 TYA4410 KJA → UFA May 17, 08:05 UTCMay 18, 03:15 UTC19h 10m
2026-05-17 TYA104 NSK → DME May 17, 07:00 UTCMay 18, 03:15 UTC20h 15m
2026-05-14 TYA951 SVX → VOG May 14, 12:30 UTCMay 14, 12:45 UTC15m
2026-05-09 TYA104 NSK → DME May 9, 04:25 UTCMay 9, 20:55 UTC16h 30m
2026-05-06 TYA301 KJA → LED May 6, 12:50 UTCMay 7, 04:20 UTC15h 30m
2026-05-04 TYA9018 - May 4, 19:40 UTCMay 4, 20:15 UTC35m
2026-05-04 TYA102 NSK → DME May 4, 05:00 UTCMay 4, 05:20 UTC20m
2026-05-03 TYA102 NSK → DME May 3, 19:40 UTCMay 4, 04:15 UTC8h 35m
2026-05-02 TYA104 NSK → DME May 2, 21:20 UTCMay 3, 06:00 UTC8h 39m
2026-05-02 TYA104 NSK → DME May 2, 04:35 UTCMay 2, 22:35 UTC18h 0m
2026-05-01 TYA104 NSK → DME May 1, 22:05 UTCMay 2, 21:25 UTC23h 20m
2026-05-01 TYA104 NSK → DME May 1, 21:55 UTCMay 2, 05:55 UTC8h 0m
2026-04-30 106 - Apr 30, 15:50 UTCMay 1, 07:30 UTC15h 40m
2026-04-29 TYA4702 - Apr 29, 17:35 UTCApr 30, 15:55 UTC22h 19m
2026-04-27 TYA4702 - Apr 27, 06:45 UTCApr 27, 15:45 UTC9h 0m
2026-04-26 TYA4702 - Apr 26, 15:30 UTCApr 27, 06:45 UTC15h 15m
2026-04-26 TYA4702 - Apr 26, 09:10 UTCApr 27, 06:45 UTC21h 35m
2026-04-26 TYA4400 DME → UFA Apr 26, 04:25 UTCApr 26, 15:40 UTC11h 15m
2026-04-24 TYA406 NSK → LED Apr 24, 14:30 UTCApr 24, 16:55 UTC2h 25m
2026-04-23 TYA406 NSK → LED Apr 23, 16:20 UTCApr 24, 16:00 UTC23h 40m
2026-04-23 TYA951 SVX → VOG Apr 23, 12:15 UTCApr 23, 16:35 UTC4h 20m
2026-04-20 TYA4400 DME → UFA Apr 20, 03:35 UTCApr 20, 03:50 UTC15m
2026-04-19 TYA106 NSK → DME Apr 19, 06:50 UTCApr 19, 07:15 UTC25m
2026-04-19 TYA106 NSK → DME Apr 19, 04:55 UTCApr 19, 06:15 UTC1h 20m
2026-04-16 TYA951 - Apr 16, 12:19 UTCApr 16, 12:45 UTC25m
2026-04-13 TYA4702 - Apr 13, 14:45 UTCApr 13, 14:55 UTC10m

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-73256 page for operator, model, and routing details .

Mode-S 151E28 frequently asked

What is Mode-S code 151E28?
151E28 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73256.
Where is Mode-S 151E28 registered?
Mode-S code 151E28 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E28 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E28, octal 05217050, decimal 1,383,976.
What flights does 151E28 operate?
Mode-S 151E28 has broadcast 20 distinct callsigns, including TYA104, TYA4702, TYA9605, TYA951, TYA4400.