Apparatus

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sensors Mode-S transponder

151E2E

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73262 · BOEING 737-700

Hex
151E2E
Octal
05217056
Decimal
1,383,982
Country
RU
Tail
RA-73262
Type
B737
No current signal · last broadcast 3d ago
Flights observed
120
Distinct callsigns
14
Country
RU
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 151E2E.

Country allocation

The ICAO 24-bit address 151E2E 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 14 distinct

Callsign Airline Flights Last seen
SYL487 - 27 2026-07-03
SYL479 - 17 2026-07-10
SYL465 - 15 2026-07-01
SYL475 - 14 2026-07-05
SYL473 - 14 2026-07-03
SYL476 Yakutia Airlines 7 2026-06-14
SYL467 Yakutia Airlines 5 2026-05-17
SYL480 Yakutia Airlines 4 2026-07-07
SYL468 Yakutia Airlines 4 2026-06-29
SYL466 - 4 2026-07-09
SYL474 Yakutia Airlines 3 2026-05-16
SYL453 - 3 2026-07-08
SYL488 - 2 2026-04-17
SYL736 - 1 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 SYL479 SVO → SVO Jul 10, 08:15 UTCJul 10, 08:55 UTC40m
2026-07-09 SYL479 - Jul 9, 18:25 UTCJul 10, 05:20 UTC10h 55m
2026-07-09 SYL466 SVO → SVO Jul 9, 13:05 UTCJul 9, 13:15 UTC10m
2026-07-08 SYL453 - Jul 8, 11:35 UTCJul 9, 05:50 UTC18h 15m
2026-07-08 SYL453 - Jul 8, 11:05 UTCJul 9, 05:50 UTC18h 45m
2026-07-07 SYL480 MRV → VKO Jul 7, 17:45 UTCJul 7, 18:05 UTC20m
2026-07-07 SYL479 - Jul 7, 02:40 UTCJul 7, 04:15 UTC1h 35m
2026-07-05 SYL475 - Jul 5, 06:00 UTCJul 5, 06:40 UTC40m
2026-07-03 SYL473 - Jul 3, 19:25 UTCJul 4, 08:05 UTC12h 40m
2026-07-03 SYL487 - Jul 3, 14:35 UTCJul 3, 17:15 UTC2h 40m
2026-07-02 SYL487 - Jul 2, 20:35 UTCJul 3, 17:15 UTC20h 40m
2026-07-01 SYL465 - Jul 1, 20:40 UTCJul 2, 07:15 UTC10h 35m
2026-07-01 SYL475 - Jul 1, 02:50 UTCJul 1, 21:10 UTC18h 20m
2026-06-30 SYL487 - Jun 30, 09:00 UTCJul 1, 03:25 UTC18h 25m
2026-06-29 SYL468 LED → SVX Jun 29, 15:54 UTCJun 29, 16:15 UTC20m
2026-06-26 SYL487 - Jun 26, 10:39 UTCJun 26, 16:20 UTC5h 40m
2026-06-25 SYL487 - Jun 25, 19:34 UTCJun 26, 16:20 UTC20h 45m
2026-06-25 SYL487 - Jun 25, 19:24 UTCJun 26, 16:20 UTC20h 55m
2026-06-25 SYL736 - Jun 25, 09:29 UTCJun 25, 10:09 UTC40m
2026-06-23 SYL487 - Jun 23, 11:10 UTCJun 24, 04:24 UTC17h 15m
2026-06-22 SYL487 - Jun 22, 17:55 UTCJun 23, 12:15 UTC18h 20m
2026-06-22 SYL473 - Jun 22, 02:59 UTCJun 22, 18:15 UTC15h 15m
2026-06-19 SYL480 MRV → VKO Jun 19, 22:55 UTCJun 20, 00:24 UTC1h 30m
2026-06-18 SYL479 VKO → MRV Jun 18, 23:15 UTCJun 19, 09:55 UTC10h 39m
2026-06-18 SYL465 OVB → VKO Jun 18, 15:45 UTCJun 18, 16:05 UTC20m
2026-06-18 SYL465 OVB → VKO Jun 18, 02:15 UTCJun 18, 10:30 UTC8h 15m
2026-06-17 SYL453 - Jun 17, 17:05 UTCJun 17, 17:55 UTC50m
2026-06-16 SYL479 VKO → MRV Jun 16, 02:54 UTCJun 16, 11:40 UTC8h 45m
2026-06-14 SYL476 VKO → YKS Jun 14, 20:10 UTCJun 14, 21:10 UTC1h 0m
2026-06-12 SYL479 VKO → MRV Jun 12, 02:50 UTCJun 12, 13:40 UTC10h 50m
2026-06-11 SYL479 VKO → MRV Jun 11, 16:45 UTCJun 12, 13:40 UTC20h 55m
2026-06-11 SYL465 OVB → VKO Jun 11, 01:35 UTCJun 11, 02:10 UTC35m
2026-06-08 SYL479 VKO → MRV Jun 8, 07:35 UTCJun 9, 03:15 UTC19h 40m
2026-06-05 SYL473 VKO → AER Jun 5, 10:15 UTCJun 6, 04:10 UTC17h 55m
2026-06-04 SYL487 YKS → LED Jun 4, 15:50 UTCJun 5, 15:25 UTC23h 35m
2026-06-04 SYL487 YKS → LED Jun 4, 11:35 UTCJun 5, 11:15 UTC23h 40m
2026-06-04 SYL465 OVB → VKO Jun 4, 01:40 UTCJun 4, 02:15 UTC35m
2026-06-03 SYL475 YKS → VKO Jun 3, 03:35 UTCJun 4, 02:15 UTC22h 40m
2026-06-02 SYL475 YKS → VKO Jun 2, 13:55 UTCJun 3, 04:15 UTC14h 20m
2026-06-01 SYL487 YKS → LED Jun 1, 16:45 UTCJun 2, 10:55 UTC18h 10m
2026-06-01 SYL473 VKO → AER Jun 1, 02:50 UTCJun 1, 10:50 UTC8h 0m
2026-05-31 SYL473 VKO → AER May 31, 12:30 UTCJun 1, 10:50 UTC22h 20m
2026-05-30 SYL473 VKO → AER May 30, 02:35 UTCMay 30, 19:20 UTC16h 45m
2026-05-29 SYL487 YKS → LED May 29, 10:25 UTCMay 30, 03:05 UTC16h 40m
2026-05-28 SYL487 YKS → LED May 28, 19:35 UTCMay 29, 11:55 UTC16h 20m
2026-05-28 SYL487 YKS → LED May 28, 17:15 UTCMay 29, 11:55 UTC18h 40m
2026-05-28 SYL465 OVB → VKO May 28, 01:45 UTCMay 28, 02:25 UTC40m
2026-05-26 SYL479 VKO → MRV May 26, 02:49 UTCMay 26, 03:19 UTC30m
2026-05-24 SYL476 VKO → YKS May 24, 16:50 UTCMay 24, 17:10 UTC20m
2026-05-24 SYL475 YKS → VKO May 24, 02:35 UTCMay 24, 09:40 UTC7h 5m

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-73262 page for operator, model, and routing details .

Mode-S 151E2E frequently asked

What is Mode-S code 151E2E?
151E2E is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73262.
Where is Mode-S 151E2E registered?
Mode-S code 151E2E is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E2E broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E2E, octal 05217056, decimal 1,383,982.
What flights does 151E2E operate?
Mode-S 151E2E has broadcast 14 distinct callsigns, including SYL487, SYL479, SYL465, SYL475, SYL473.