Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151E25

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73253 · BOEING 737-800

Hex
151E25
Octal
05217045
Decimal
1,383,973
Country
RU
Tail
RA-73253
Type
B738
No current signal · last broadcast 13h ago
Flights observed
65
Distinct callsigns
20
Country
RU
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 151E25.

Country allocation

The ICAO 24-bit address 151E25 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
TYA6101 - 5 2026-04-18
TYA401 - 5 2026-05-29
TYA6102 - 4 2026-04-16
TYA403 NordStar 4 2026-05-19
TYA402 NordStar 4 2026-04-22
TYA7205 - 3 2026-05-10
TYA416 NordStar 3 2026-05-01
TYA107 NordStar 3 2026-05-29
TYA925 NordStar 2 2026-05-13
TYA7207 - 2 2026-05-09
TYA7201 - 2 2026-05-08
TYA414 NordStar 2 2026-05-19
TYA412 NordStar 2 2026-05-29
TYA111 NordStar 2 2026-04-17
TYA106 NordStar 2 2026-04-26
TYA102 NordStar 2 2026-04-29
TYA9706 - 1 2026-04-27
TYA9705 - 1 2026-04-26
TYA9502 NordStar 1 2026-05-18
TYA9032 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TYA107 DME → KJA May 29, 13:55 UTCMay 29, 23:00 UTC9h 5m
2026-05-29 TYA401 - May 29, 13:40 UTCMay 29, 13:50 UTC10m
2026-05-29 TYA412 NSK → AER May 29, 11:30 UTCMay 29, 11:50 UTC20m
2026-05-25 TYA4410 KJA → UFA May 25, 01:55 UTCMay 25, 14:35 UTC12h 40m
2026-05-22 TYA107 DME → KJA May 22, 07:55 UTCMay 22, 23:30 UTC15h 35m
2026-05-19 TYA403 MRV → DME May 19, 20:55 UTCMay 20, 15:05 UTC18h 11m
2026-05-19 TYA414 NSK → MRV May 19, 10:25 UTCMay 19, 21:00 UTC10h 35m
2026-05-19 TYA414 NSK → MRV May 19, 00:40 UTCMay 19, 21:00 UTC20h 20m
2026-05-18 TYA9502 SKD → DME May 18, 04:30 UTCMay 19, 01:10 UTC20h 39m
2026-05-17 TYA4552 - May 17, 12:45 UTCMay 18, 05:00 UTC16h 15m
2026-05-16 TYA4520 KJA → OVB May 16, 11:51 UTCMay 16, 12:31 UTC40m
2026-05-15 TYA4416 UFA → NSK May 15, 00:10 UTCMay 15, 00:20 UTC10m
2026-05-13 TYA925 NSK → GOJ May 13, 11:30 UTCMay 14, 00:30 UTC13h 0m
2026-05-12 TYA925 NSK → GOJ May 12, 15:40 UTCMay 13, 12:45 UTC21h 5m
2026-05-10 TYA7202 - May 10, 17:45 UTCMay 11, 11:25 UTC17h 40m
2026-05-10 TYA7205 - May 10, 06:15 UTCMay 10, 15:09 UTC8h 55m
2026-05-10 TYA7205 - May 10, 05:25 UTCMay 10, 05:34 UTC10m
2026-05-10 TYA7208 - May 10, 03:30 UTCMay 10, 03:50 UTC20m
2026-05-09 TYA7207 - May 9, 18:00 UTCMay 10, 02:39 UTC8h 40m
2026-05-09 TYA7207 - May 9, 17:00 UTCMay 9, 17:15 UTC15m
2026-05-09 TYA7206 - May 9, 15:05 UTCMay 9, 15:30 UTC25m
2026-05-09 TYA7205 - May 9, 03:40 UTCMay 9, 14:20 UTC10h 40m
2026-05-09 TYA7204 - May 9, 01:00 UTCMay 9, 01:20 UTC20m
2026-05-08 TYA7203 - May 8, 14:25 UTCMay 9, 00:15 UTC9h 50m
2026-05-08 TYA7201 - May 8, 12:39 UTCMay 8, 12:55 UTC15m
2026-05-08 TYA7201 - May 8, 08:49 UTCMay 8, 11:49 UTC3h 0m
2026-05-05 TYA107 DME → KJA May 5, 22:40 UTCMay 5, 23:05 UTC25m
2026-05-03 TYA108 KJA → DME May 3, 22:34 UTCMay 4, 04:39 UTC6h 5m
2026-05-03 TYA412 NSK → AER May 3, 10:35 UTCMay 3, 10:45 UTC10m
2026-05-01 TYA416 NSK → LED May 1, 03:20 UTCMay 1, 23:15 UTC19h 55m
2026-05-01 TYA416 NSK → LED May 1, 02:50 UTCMay 1, 23:15 UTC20h 25m
2026-04-30 TYA416 NSK → LED Apr 30, 20:20 UTCMay 1, 04:55 UTC8h 35m
2026-04-29 TYA102 NSK → DME Apr 29, 21:20 UTCApr 30, 16:25 UTC19h 5m
2026-04-29 TYA102 NSK → DME Apr 29, 20:20 UTCApr 30, 16:25 UTC20h 5m
2026-04-28 TYA4214 KUF → DME Apr 28, 09:55 UTCApr 28, 15:20 UTC5h 25m
2026-04-27 TYA9706 - Apr 27, 10:10 UTCApr 27, 11:15 UTC1h 5m
2026-04-26 TYA9705 - Apr 26, 14:20 UTCApr 27, 07:35 UTC17h 15m
2026-04-26 TYA106 NSK → DME Apr 26, 05:10 UTCApr 26, 14:35 UTC9h 25m
2026-04-24 TYA401 DME → NSK Apr 24, 22:10 UTCApr 24, 23:20 UTC1h 10m
2026-04-24 TYA401 DME → NSK Apr 24, 03:20 UTCApr 24, 23:20 UTC20h 0m
2026-04-24 TYA401 DME → NSK Apr 24, 02:30 UTCApr 24, 23:20 UTC20h 50m
2026-04-23 TYA404 NSK → DME Apr 23, 04:30 UTCApr 23, 04:45 UTC15m
2026-04-22 TYA101 DME → NSK Apr 22, 19:45 UTCApr 23, 03:00 UTC7h 15m
2026-04-22 TYA402 NSK → DME Apr 22, 04:35 UTCApr 22, 04:45 UTC10m
2026-04-21 TYA402 NSK → DME Apr 21, 21:05 UTCApr 22, 03:50 UTC6h 45m
2026-04-21 TYA403 MRV → DME Apr 21, 19:40 UTCApr 21, 19:55 UTC15m
2026-04-21 TYA106 NSK → DME Apr 21, 06:30 UTCApr 21, 07:55 UTC1h 25m
2026-04-19 TYA401 DME → NSK Apr 19, 21:25 UTCApr 19, 23:20 UTC1h 55m
2026-04-18 TYA6101 - Apr 18, 09:40 UTCApr 18, 16:30 UTC6h 50m
2026-04-17 TYA112 - Apr 17, 13:35 UTCApr 17, 15:00 UTC1h 24m

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-73253 page for operator, model, and routing details .

Mode-S 151E25 frequently asked

What is Mode-S code 151E25?
151E25 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73253.
Where is Mode-S 151E25 registered?
Mode-S code 151E25 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E25 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E25, octal 05217045, decimal 1,383,973.
What flights does 151E25 operate?
Mode-S 151E25 has broadcast 20 distinct callsigns, including TYA6101, TYA401, TYA6102, TYA403, TYA402.