sensors Mode-S transponder

15204E

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73806 · AIRBUS A-320

Hex
15204E
Octal
05220116
Decimal
1,384,526
Country
RU
Tail
RA-73806
Type
A320
No current signal · last broadcast 19h ago
Flights observed
47
Distinct callsigns
20
Country
RU
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 15204E.

Country allocation

The ICAO 24-bit address 15204E 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
SVR391 Ural Airlines 7 2026-05-14
SVR392 Ural Airlines 5 2026-05-14
SVR106 Ural Airlines 3 2026-05-29
TVR392 - 2 2026-04-14
SVR620 Ural Airlines 2 2026-04-25
SVR548 Ural Airlines 2 2026-05-26
SVR504 Ural Airlines 2 2026-05-07
SVR2955 Ural Airlines 2 2026-05-09
SVR2920 Ural Airlines 2 2026-04-18
SVR628 Ural Airlines 1 2026-05-28
SVR627 Ural Airlines 1 2026-05-28
SVR2986 Ural Airlines 1 2026-05-02
SVR2954 Ural Airlines 1 2026-05-05
SVR2930 Ural Airlines 1 2026-04-24
SVR2919 Ural Airlines 1 2026-04-18
SVR2890 Ural Airlines 1 2026-05-14
SVR2873 Ural Airlines 1 2026-04-30
SVR2812 Ural Airlines 1 2026-04-28
SVR272 Ural Airlines 1 2026-05-10
SVR2641 - 1 2026-04-15

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-05-29 SVR106 IKT → DME May 29, 20:10 UTCMay 30, 02:06 UTC5h 56m
2026-05-29 SVR105 DME → IKT May 29, 16:45 UTCMay 29, 17:10 UTC25m
2026-05-28 SVR628 KGD → DME May 28, 12:35 UTCMay 29, 04:45 UTC16h 10m
2026-05-28 SVR627 DME → KGD May 28, 08:55 UTCMay 28, 10:55 UTC2h 0m
2026-05-26 SVR548 AER → LED May 26, 08:50 UTCMay 26, 09:09 UTC20m
2026-05-25 SVR548 AER → LED May 25, 08:50 UTCMay 25, 09:25 UTC35m
2026-05-20 SVR174 KHV → SVX May 20, 13:20 UTCMay 20, 14:25 UTC1h 5m
2026-05-19 SVR167 DME → KGD May 19, 15:50 UTCMay 19, 16:25 UTC35m
2026-05-18 SVR106 IKT → DME May 18, 02:20 UTCMay 18, 04:40 UTC2h 20m
2026-05-17 SVR106 IKT → DME May 17, 05:35 UTCMay 18, 04:40 UTC23h 5m
2026-05-17 SVR262 SVX → DME May 17, 04:45 UTCMay 18, 02:55 UTC22h 10m
2026-05-14 SVR2890 OSS → SVX May 14, 21:35 UTCMay 15, 02:55 UTC5h 20m
2026-05-14 SVR392 KGD → LED May 14, 10:25 UTCMay 14, 11:40 UTC1h 15m
2026-05-14 SVR391 LED → KGD May 14, 07:45 UTCMay 14, 08:45 UTC1h 0m
2026-05-13 SVR391 LED → KGD May 13, 08:00 UTCMay 13, 08:55 UTC55m
2026-05-11 SVR223 SVX → LED May 11, 06:45 UTCMay 11, 07:40 UTC55m
2026-05-10 SVR272 SVX → DME May 10, 04:55 UTCMay 10, 06:04 UTC1h 10m
2026-05-09 SVR2955 SVX → LBD May 9, 20:10 UTCMay 10, 02:00 UTC5h 50m
2026-05-09 SVR220 AER → SVX May 9, 15:45 UTCMay 9, 15:55 UTC10m
2026-05-09 SVR219 SVX → AER May 9, 08:45 UTCMay 9, 10:25 UTC1h 40m
2026-05-07 SVR2955 SVX → LBD May 7, 21:40 UTCMay 8, 03:09 UTC5h 29m
2026-05-07 SVR504 KGD → SVX May 7, 16:20 UTCMay 7, 17:35 UTC1h 15m
2026-05-06 SVR2165 SVX → OSS May 6, 00:40 UTCMay 6, 06:20 UTC5h 40m
2026-05-05 SVR2954 DYU → SVX May 5, 04:25 UTCMay 6, 00:50 UTC20h 25m
2026-05-03 SVR093 DME → HTA May 3, 20:35 UTCMay 3, 21:00 UTC25m
2026-05-02 SVR504 KGD → SVX May 2, 09:50 UTCMay 2, 15:45 UTC5h 55m
2026-05-02 SVR2986 FRU → SVX May 2, 01:40 UTCMay 2, 06:55 UTC5h 15m
2026-04-30 SVR2873 CEK → OSS Apr 30, 12:05 UTCMay 1, 03:05 UTC15h 0m
2026-04-28 SVR2812 DYU → CEK Apr 28, 19:10 UTCApr 28, 19:20 UTC10m
2026-04-25 SVR620 CEK → AER Apr 25, 22:10 UTCApr 26, 11:15 UTC13h 5m
2026-04-24 SVR2930 DYU → KJA Apr 24, 11:45 UTCApr 24, 22:25 UTC10h 40m
2026-04-22 SVR620 CEK → AER Apr 22, 05:35 UTCApr 22, 06:40 UTC1h 5m
2026-04-18 SVR2920 LBD → KJA Apr 18, 08:40 UTCApr 18, 09:20 UTC40m
2026-04-18 SVR2919 KJA → LBD Apr 18, 02:20 UTCApr 18, 02:55 UTC35m
2026-04-17 SVR2920 LBD → KJA Apr 17, 23:20 UTCApr 18, 14:20 UTC15h 0m
2026-04-17 SVR392 KGD → LED Apr 17, 11:25 UTCApr 17, 12:50 UTC1h 25m
2026-04-17 SVR391 LED → KGD Apr 17, 09:20 UTCApr 17, 10:00 UTC40m
2026-04-17 SVR391 LED → KGD Apr 17, 09:05 UTCApr 17, 09:15 UTC10m
2026-04-16 SVR392 KGD → LED Apr 16, 11:09 UTCApr 16, 11:44 UTC35m
2026-04-16 SVR392 KGD → LED Apr 16, 10:25 UTCApr 16, 11:04 UTC40m
2026-04-16 SVR391 LED → KGD Apr 16, 07:54 UTCApr 16, 08:54 UTC1h 0m
2026-04-15 SVR2641 LED → LED Apr 15, 17:05 UTCApr 15, 17:15 UTC10m
2026-04-14 TVR392 - Apr 14, 10:50 UTCApr 14, 11:35 UTC45m
2026-04-14 TVR392 - Apr 14, 10:10 UTCApr 14, 11:05 UTC55m
2026-04-14 SVR391 LED → KGD Apr 14, 07:40 UTCApr 14, 08:40 UTC1h 0m
2026-04-13 SVR392 - Apr 13, 12:45 UTCApr 13, 14:10 UTC1h 25m
2026-04-13 SVR391 - Apr 13, 10:25 UTCApr 13, 11:10 UTC45m

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-73806 page for operator, model, and routing details .

Mode-S 15204E frequently asked

What is Mode-S code 15204E?
15204E is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73806.
Where is Mode-S 15204E registered?
Mode-S code 15204E is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 15204E broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 15204E, octal 05220116, decimal 1,384,526.
What flights does 15204E operate?
Mode-S 15204E has broadcast 20 distinct callsigns, including SVR391, SVR392, SVR106, TVR392, SVR620.