Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 23h ago
Flights observed
95
Distinct callsigns
20
Country
RU
Last broadcast
23h 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
TYA142 - 7 2026-07-10
TYA141 - 7 2026-07-10
TYA132 - 6 2026-07-16
TYA104 NordStar 6 2026-05-17
TYA4702 - 5 2026-04-29
TYA406 - 5 2026-07-10
TYA322 - 5 2026-07-17
TYA321 NordStar 5 2026-07-17
TYA9605 - 4 2026-06-03
TYA951 NordStar 4 2026-06-01
TYA106 NordStar 4 2026-07-02
TYA4400 NordStar 2 2026-04-26
TYA4214 - 2 2026-07-03
TYA416 - 2 2026-06-23
TYA415 NordStar 2 2026-06-12
TYA412 NordStar 2 2026-05-24
TYA409 NordStar 2 2026-06-29
TYA301 - 2 2026-07-14
TYA131 NordStar 2 2026-05-30
TYA102 NordStar 2 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 TYA404 - Jul 17, 20:15 UTCJul 18, 11:35 UTC15h 21m
2026-07-17 TYA322 - Jul 17, 10:05 UTCJul 18, 10:00 UTC23h 56m
2026-07-17 TYA321 KJA → AER Jul 17, 09:15 UTCJul 17, 20:55 UTC11h 40m
2026-07-16 TYA132 - Jul 16, 07:50 UTCJul 16, 21:30 UTC13h 40m
2026-07-15 TYA132 - Jul 15, 12:55 UTCJul 16, 09:00 UTC20h 5m
2026-07-14 TYA301 - Jul 14, 20:25 UTCJul 15, 13:25 UTC16h 59m
2026-07-14 TYA916 - Jul 14, 00:35 UTCJul 14, 20:40 UTC20h 5m
2026-07-13 TYA4520 - Jul 13, 22:15 UTCJul 13, 22:55 UTC40m
2026-07-13 TYA333 - Jul 13, 05:31 UTCJul 13, 11:40 UTC6h 10m
2026-07-10 TYA406 - Jul 10, 21:45 UTCJul 11, 16:30 UTC18h 45m
2026-07-10 TYA142 - Jul 10, 19:10 UTCJul 10, 19:20 UTC10m
2026-07-10 TYA142 - Jul 10, 14:20 UTCJul 10, 18:25 UTC4h 5m
2026-07-10 TYA141 - Jul 10, 11:30 UTCJul 10, 12:10 UTC40m
2026-07-08 TYA9110 - Jul 8, 14:45 UTCJul 8, 16:20 UTC1h 35m
2026-07-07 TYA141 - Jul 7, 08:15 UTCJul 7, 12:35 UTC4h 20m
2026-07-06 TYA9109 - Jul 6, 20:00 UTCJul 6, 20:35 UTC35m
2026-07-06 TYA108 - Jul 6, 05:25 UTCJul 6, 05:40 UTC15m
2026-07-05 TYA322 - Jul 5, 09:05 UTCJul 6, 02:00 UTC16h 55m
2026-07-04 TYA132 - Jul 4, 07:50 UTCJul 4, 22:00 UTC14h 10m
2026-07-03 TYA4214 - Jul 3, 13:00 UTCJul 3, 13:15 UTC15m
2026-07-03 TYA4214 - Jul 3, 11:40 UTCJul 3, 12:00 UTC20m
2026-07-02 TYA106 NSK → DME Jul 2, 13:55 UTCJul 2, 14:35 UTC40m
2026-07-01 TYA401 DME → NSK Jul 1, 13:25 UTCJul 1, 14:00 UTC35m
2026-06-30 TYA322 - Jun 30, 10:35 UTCJun 30, 22:10 UTC11h 35m
2026-06-29 TYA409 - Jun 29, 16:00 UTCJun 29, 16:15 UTC15m
2026-06-29 TYA409 DME → NSK Jun 29, 14:54 UTCJun 29, 15:14 UTC20m
2026-06-26 TYA322 AER → KJA Jun 26, 09:24 UTCJun 26, 21:30 UTC12h 5m
2026-06-25 TYA132 - Jun 25, 07:54 UTCJun 25, 13:00 UTC5h 5m
2026-06-23 TYA142 ABA → LED Jun 23, 18:45 UTCJun 23, 19:00 UTC15m
2026-06-23 TYA142 ABA → LED Jun 23, 09:05 UTCJun 23, 18:14 UTC9h 10m
2026-06-23 TYA141 LED → ABA Jun 23, 08:15 UTCJun 23, 08:35 UTC20m
2026-06-23 TYA416 - Jun 23, 04:09 UTCJun 23, 04:35 UTC25m
2026-06-20 TYA406 NSK → LED Jun 20, 12:30 UTCJun 20, 21:40 UTC9h 10m
2026-06-18 TYA914 - Jun 18, 16:15 UTCJun 18, 16:35 UTC20m
2026-06-18 TYA913 NSK → OMS Jun 18, 13:20 UTCJun 18, 13:40 UTC20m
2026-06-13 TYA322 AER → KJA Jun 13, 17:00 UTCJun 13, 21:30 UTC4h 30m
2026-06-12 TYA132 ABA → AER Jun 12, 23:10 UTCJun 13, 13:00 UTC13h 49m
2026-06-12 TYA415 LED → NSK Jun 12, 21:20 UTCJun 12, 21:40 UTC20m
2026-06-12 TYA142 ABA → LED Jun 12, 14:40 UTCJun 12, 19:15 UTC4h 35m
2026-06-12 TYA141 LED → ABA Jun 12, 12:05 UTCJun 12, 12:45 UTC40m
2026-06-12 TYA141 LED → ABA Jun 12, 08:15 UTCJun 12, 08:30 UTC15m
2026-06-11 TYA106 NSK → DME Jun 11, 15:20 UTCJun 11, 15:55 UTC35m
2026-06-10 TYA302 LED → KJA Jun 10, 18:10 UTCJun 11, 15:55 UTC21h 45m
2026-06-09 TYA406 NSK → LED Jun 9, 21:25 UTCJun 10, 16:00 UTC18h 35m
2026-06-09 TYA955 CEK → KRR Jun 9, 09:20 UTCJun 9, 21:25 UTC12h 5m
2026-06-07 TYA9321 - Jun 7, 10:10 UTCJun 7, 15:45 UTC5h 35m
2026-06-06 TYA321 KJA → AER Jun 6, 12:45 UTCJun 7, 10:50 UTC22h 5m
2026-06-05 TYA321 KJA → AER Jun 5, 18:45 UTCJun 6, 13:54 UTC19h 10m
2026-06-05 TYA321 KJA → AER Jun 5, 09:15 UTCJun 5, 14:40 UTC5h 25m
2026-06-04 TYA321 KJA → AER Jun 4, 16:05 UTCJun 5, 14:40 UTC22h 35m

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 23h 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 TYA142, TYA141, TYA132, TYA104, TYA4702.