Apparatus

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sensors Mode-S transponder

151E29

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73257 · BOEING 737-800

Hex
151E29
Octal
05217051
Decimal
1,383,977
Country
RU
Tail
RA-73257
Type
B738
No current signal · last broadcast 14h ago
Flights observed
87
Distinct callsigns
20
Country
RU
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 151E29.

Country allocation

The ICAO 24-bit address 151E29 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 - 10 2026-06-26
TYA301 NordStar 8 2026-06-28
TYA102 NordStar 8 2026-07-03
TYA925 NordStar 7 2026-05-20
TYA951 NordStar 4 2026-07-13
TYA4313 - 4 2026-05-13
TYA406 NordStar 4 2026-06-06
TYA103 - 4 2026-06-22
TYA405 - 3 2026-04-17
TYA401 NordStar 3 2026-06-19
TYA108 NordStar 3 2026-05-24
TYA4312 - 2 2026-05-14
TYA409 NordStar 2 2026-06-01
TYA322 - 2 2026-07-12
TYA321 - 2 2026-07-11
TYA302 - 2 2026-06-28
TYA208 - 2 2026-06-01
TYA110 NordStar 2 2026-06-03
TYA107 NordStar 2 2026-05-24
TYA101 NordStar 2 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 TYA951 SVX → VOG Jul 13, 12:20 UTCJul 13, 12:40 UTC20m
2026-07-12 TYA322 - Jul 12, 09:15 UTCJul 12, 22:40 UTC13h 25m
2026-07-11 TYA321 - Jul 11, 12:20 UTCJul 12, 09:55 UTC21h 35m
2026-07-11 TYA321 - Jul 11, 12:10 UTCJul 12, 09:55 UTC21h 45m
2026-07-09 TYA4494 - Jul 9, 07:25 UTCJul 9, 07:45 UTC20m
2026-07-09 TYA4493 - Jul 9, 04:15 UTCJul 9, 04:35 UTC20m
2026-07-06 TYA106 NSK → DME Jul 6, 14:15 UTCJul 6, 21:40 UTC7h 25m
2026-07-03 TYA102 NSK → DME Jul 3, 03:25 UTCJul 3, 03:55 UTC30m
2026-07-01 TYA322 - Jul 1, 20:40 UTCJul 1, 21:20 UTC40m
2026-06-28 TYA302 - Jun 28, 20:34 UTCJun 29, 12:24 UTC15h 50m
2026-06-28 TYA302 - Jun 28, 17:00 UTCJun 28, 17:10 UTC10m
2026-06-28 TYA301 KJA → LED Jun 28, 10:30 UTCJun 28, 10:55 UTC25m
2026-06-26 TYA104 - Jun 26, 04:30 UTCJun 26, 23:19 UTC18h 50m
2026-06-25 TYA104 - Jun 25, 22:49 UTCJun 26, 22:14 UTC23h 25m
2026-06-24 TYA301 KJA → LED Jun 24, 13:05 UTCJun 24, 16:19 UTC3h 15m
2026-06-22 TYA103 - Jun 22, 04:19 UTCJun 22, 23:20 UTC19h 0m
2026-06-22 TYA103 - Jun 22, 04:09 UTCJun 22, 23:20 UTC19h 10m
2026-06-21 TYA301 KJA → LED Jun 21, 10:34 UTCJun 22, 04:40 UTC18h 5m
2026-06-20 TYA131 - Jun 20, 19:55 UTCJun 21, 00:10 UTC4h 15m
2026-06-19 TYA401 DME → NSK Jun 19, 23:34 UTCJun 20, 13:04 UTC13h 30m
2026-06-19 TYA102 NSK → DME Jun 19, 02:29 UTCJun 19, 04:50 UTC2h 20m
2026-06-14 TYA301 KJA → LED Jun 14, 10:40 UTCJun 14, 20:55 UTC10h 15m
2026-06-13 TYA301 KJA → LED Jun 13, 12:20 UTCJun 14, 11:10 UTC22h 51m
2026-06-13 TYA951 SVX → VOG Jun 13, 12:10 UTCJun 13, 12:25 UTC15m
2026-06-12 TYA104 - Jun 12, 07:00 UTCJun 12, 07:10 UTC10m
2026-06-11 TYA104 - Jun 11, 22:35 UTCJun 12, 06:10 UTC7h 36m
2026-06-07 TYA301 KJA → LED Jun 7, 12:40 UTCJun 7, 18:15 UTC5h 35m
2026-06-06 TYA301 KJA → LED Jun 6, 21:15 UTCJun 7, 18:15 UTC21h 0m
2026-06-06 TYA406 NSK → LED Jun 6, 12:35 UTCJun 6, 21:40 UTC9h 5m
2026-06-04 TYA103 DME → NSK Jun 4, 22:00 UTCJun 4, 22:30 UTC30m
2026-06-04 TYA1092 KRO → DME Jun 4, 02:55 UTCJun 4, 22:30 UTC19h 35m
2026-06-03 TYA110 NSK → DME Jun 3, 09:00 UTCJun 4, 03:35 UTC18h 35m
2026-06-01 TYA409 DME → NSK Jun 1, 04:20 UTCJun 1, 23:35 UTC19h 15m
2026-06-01 TYA409 DME → NSK Jun 1, 04:10 UTCJun 1, 23:35 UTC19h 25m
2026-06-01 TYA208 - Jun 1, 01:25 UTCJun 1, 23:35 UTC22h 10m
2026-05-31 TYA208 - May 31, 20:10 UTCJun 1, 09:40 UTC13h 30m
2026-05-29 TYA401 - May 29, 22:05 UTCMay 29, 23:20 UTC1h 15m
2026-05-28 TYA404 NSK → DME May 28, 02:35 UTCMay 28, 04:10 UTC1h 35m
2026-05-27 TYA103 DME → NSK May 27, 00:04 UTCMay 27, 01:24 UTC1h 20m
2026-05-24 TYA108 KJA → DME May 24, 20:00 UTCMay 25, 04:45 UTC8h 45m
2026-05-24 TYA107 DME → KJA May 24, 05:50 UTCMay 25, 04:15 UTC22h 25m
2026-05-23 TYA107 DME → KJA May 23, 22:50 UTCMay 24, 20:30 UTC21h 40m
2026-05-23 TYA104 NSK → DME May 23, 04:25 UTCMay 23, 23:10 UTC18h 45m
2026-05-21 TYA102 NSK → DME May 21, 15:10 UTCMay 22, 03:55 UTC12h 45m
2026-05-20 TYA925 NSK → GOJ May 20, 06:50 UTCMay 20, 15:10 UTC8h 20m
2026-05-19 TYA925 NSK → GOJ May 19, 14:30 UTCMay 20, 08:15 UTC17h 46m
2026-05-19 TYA4400 DME → UFA May 19, 04:35 UTCMay 19, 14:35 UTC10h 0m
2026-05-17 TYA410 NSK → DME May 17, 15:05 UTCMay 18, 03:15 UTC12h 10m
2026-05-16 TYA110 NSK → DME May 16, 15:05 UTCMay 17, 06:05 UTC15h 0m
2026-05-16 TYA102 NSK → DME May 16, 02:25 UTCMay 16, 15:35 UTC13h 11m

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-73257 page for operator, model, and routing details .

Mode-S 151E29 frequently asked

What is Mode-S code 151E29?
151E29 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73257.
Where is Mode-S 151E29 registered?
Mode-S code 151E29 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E29 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 151E29, octal 05217051, decimal 1,383,977.
What flights does 151E29 operate?
Mode-S 151E29 has broadcast 20 distinct callsigns, including TYA104, TYA301, TYA102, TYA925, TYA951.