Apparatus

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sensors Mode-S transponder

151E2A

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73258 · BOEING 737-800

Hex
151E2A
Octal
05217052
Decimal
1,383,978
Country
RU
Tail
RA-73258
Type
B738
No current signal · last broadcast 1d ago
Flights observed
73
Distinct callsigns
20
Country
RU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 151E2A.

Country allocation

The ICAO 24-bit address 151E2A 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
TYA301 - 7 2026-07-12
TYA104 NordStar 7 2026-05-20
TYA925 NordStar 6 2026-07-08
TYA321 - 6 2026-07-10
TYA101 NordStar 4 2026-06-17
TYA916 - 3 2026-06-28
TYA416 NordStar 3 2026-05-08
TYA404 NordStar 3 2026-05-14
TYA403 - 3 2026-06-23
TYA142 NordStar 3 2026-06-26
TYA131 - 3 2026-06-18
TYA108 - 3 2026-06-17
TYA106 NordStar 3 2026-04-14
TYA103 - 3 2026-06-29
TYA927 NordStar 2 2026-05-04
TYA406 NordStar 2 2026-04-26
TYA401 NordStar 2 2026-04-29
TYA302 - 2 2026-07-05
TYA952 NordStar 1 2026-05-25
TYA928 NordStar 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 TYA301 - Jul 12, 14:30 UTCJul 13, 00:50 UTC10h 20m
2026-07-10 TYA321 - Jul 10, 09:35 UTCJul 10, 10:15 UTC40m
2026-07-08 TYA925 NSK → GOJ Jul 8, 06:45 UTCJul 8, 21:25 UTC14h 40m
2026-07-07 TYA925 NSK → GOJ Jul 7, 21:00 UTCJul 8, 08:10 UTC11h 10m
2026-07-05 TYA302 - Jul 5, 17:55 UTCJul 5, 18:20 UTC25m
2026-07-05 TYA302 LED → LED Jul 5, 16:50 UTCJul 5, 17:10 UTC20m
2026-07-05 TYA301 - Jul 5, 10:25 UTCJul 5, 14:10 UTC3h 45m
2026-06-29 TYA103 - Jun 29, 21:30 UTCJun 29, 23:39 UTC2h 10m
2026-06-28 TYA916 - Jun 28, 21:24 UTCJun 28, 21:55 UTC30m
2026-06-27 TYA301 KJA → LED Jun 27, 12:55 UTCJun 28, 06:44 UTC17h 50m
2026-06-26 TYA301 KJA → LED Jun 26, 18:34 UTCJun 27, 16:30 UTC21h 55m
2026-06-26 TYA301 KJA → LED Jun 26, 17:50 UTCJun 27, 16:30 UTC22h 40m
2026-06-26 TYA142 ABA → LED Jun 26, 14:50 UTCJun 27, 13:24 UTC22h 35m
2026-06-26 TYA142 ABA → LED Jun 26, 03:34 UTCJun 26, 18:34 UTC15h 0m
2026-06-25 TYA142 ABA → LED Jun 25, 21:29 UTCJun 26, 18:34 UTC21h 5m
2026-06-23 TYA403 - Jun 23, 20:19 UTCJun 23, 21:45 UTC1h 25m
2026-06-21 TYA916 OVB → NSK Jun 21, 21:29 UTCJun 21, 22:00 UTC30m
2026-06-20 TYA321 KJA → AER Jun 20, 13:59 UTCJun 21, 08:10 UTC18h 10m
2026-06-20 TYA321 KJA → AER Jun 20, 09:14 UTCJun 21, 08:10 UTC22h 55m
2026-06-20 TYA321 KJA → AER Jun 20, 05:04 UTCJun 21, 00:29 UTC19h 25m
2026-06-19 TYA321 KJA → AER Jun 19, 10:19 UTCJun 19, 15:44 UTC5h 25m
2026-06-18 TYA131 - Jun 18, 07:55 UTCJun 18, 22:00 UTC14h 5m
2026-06-17 TYA131 - Jun 17, 22:35 UTCJun 18, 22:00 UTC23h 25m
2026-06-17 TYA101 DME → NSK Jun 17, 22:00 UTCJun 18, 09:00 UTC11h 0m
2026-06-17 TYA108 - Jun 17, 18:35 UTCJun 17, 18:45 UTC10m
2026-06-17 TYA108 - Jun 17, 14:30 UTCJun 17, 15:05 UTC35m
2026-06-13 TYA103 DME → NSK Jun 13, 22:15 UTCJun 13, 22:35 UTC20m
2026-06-10 TYA301 KJA → LED Jun 10, 13:00 UTCJun 10, 21:35 UTC8h 35m
2026-06-08 TYA916 OVB → NSK Jun 8, 04:40 UTCJun 8, 05:05 UTC25m
2026-06-08 TYA915 NSK → OVB Jun 8, 02:15 UTCJun 8, 02:40 UTC25m
2026-06-07 TYA131 AER → ABA Jun 7, 12:30 UTCJun 7, 15:35 UTC3h 5m
2026-06-07 TYA321 KJA → AER Jun 7, 07:10 UTCJun 7, 07:30 UTC20m
2026-06-03 TYA925 NSK → GOJ Jun 3, 06:50 UTCJun 3, 16:15 UTC9h 25m
2026-06-02 TYA925 NSK → GOJ Jun 2, 18:35 UTCJun 3, 16:15 UTC21h 40m
2026-06-02 TYA925 NSK → GOJ Jun 2, 18:15 UTCJun 3, 16:15 UTC22h 0m
2026-05-31 TYA105 DME → NSK May 31, 21:35 UTCMay 31, 23:25 UTC1h 50m
2026-05-29 TYA101 DME → NSK May 29, 19:35 UTCMay 30, 09:00 UTC13h 25m
2026-05-29 TY110 - May 29, 14:15 UTCMay 29, 16:30 UTC2h 15m
2026-05-26 TYA925 NSK → GOJ May 26, 20:29 UTCMay 27, 09:20 UTC12h 50m
2026-05-25 TYA952 VOG → SVX May 25, 16:15 UTCMay 25, 16:35 UTC20m
2026-05-20 TYA104 NSK → DME May 20, 04:35 UTCMay 21, 02:40 UTC22h 6m
2026-05-19 TYA104 NSK → DME May 19, 10:35 UTCMay 20, 05:40 UTC19h 6m
2026-05-19 TYA104 NSK → DME May 19, 09:25 UTCMay 20, 05:40 UTC20h 16m
2026-05-17 TYA108 KJA → DME May 17, 22:40 UTCMay 18, 04:51 UTC6h 11m
2026-05-16 TYA103 DME → NSK May 16, 21:25 UTCMay 16, 23:25 UTC2h 0m
2026-05-15 TYA104 NSK → DME May 15, 22:25 UTCMay 16, 05:20 UTC6h 55m
2026-05-14 TYA404 NSK → DME May 14, 02:35 UTCMay 14, 21:10 UTC18h 35m
2026-05-13 TYA301 KJA → LED May 13, 13:00 UTCMay 14, 03:05 UTC14h 5m
2026-05-08 TYA416 NSK → LED May 8, 04:34 UTCMay 8, 23:05 UTC18h 30m
2026-05-08 TYA416 NSK → LED May 8, 03:24 UTCMay 8, 23:05 UTC19h 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-73258 page for operator, model, and routing details .

Mode-S 151E2A frequently asked

What is Mode-S code 151E2A?
151E2A is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73258.
Where is Mode-S 151E2A registered?
Mode-S code 151E2A is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E2A broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E2A, octal 05217052, decimal 1,383,978.
What flights does 151E2A operate?
Mode-S 151E2A has broadcast 20 distinct callsigns, including TYA301, TYA104, TYA925, TYA321, TYA101.