Apparatus

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sensors Mode-S transponder

50815F

ICAO 24-bit transponder address · allocated to Ukraine

Currently assigned to UR-ABA · AIRBUS A-319

Hex
50815F
Octal
24100537
Decimal
5,275,999
Country
UA
Tail
UR-ABA
Type
A319
Broadcasting now · callsign UKN1140 · 29,650 ft
Flights observed
57
Distinct callsigns
20
Country
UA
Last broadcast
1d ago

Current position

50815F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 50815F falls within the block assigned to Ukraine (UA) by ICAO Annex 10, Volume III. Every aircraft registered in Ukraine 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
UKN1115 - 8 2026-04-15
UKN1127 - 4 2026-06-08
UKN1207 - 3 2026-06-01
UKN1129 - 3 2026-06-17
UKN1117 - 3 2026-04-24
UKN1406 - 2 2026-05-15
UKN1210 - 2 2026-06-25
UKN1209 - 2 2026-06-24
UKN1208 - 2 2026-06-02
UKN1204 - 2 2026-04-28
UKN1136 - 2 2026-07-08
UKN1134 - 2 2026-07-02
UKN1133 - 2 2026-07-01
UKN1130 - 2 2026-06-19
UKN1128 - 2 2026-06-09
UKN1125 - 2 2026-05-28
UKN1121 - 2 2026-05-13
UKN1119 - 2 2026-05-03
UKN1116 - 2 2026-04-16
UKN1405 - 1 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 UKN1139 KRK → VIY Jul 13, 04:00 UTCJul 13, 10:35 UTC6h 35m
2026-07-08 UKN1136 - Jul 8, 21:45 UTCJul 8, 22:55 UTC1h 10m
2026-07-08 UKN1136 - Jul 8, 19:05 UTCJul 8, 20:00 UTC55m
2026-07-07 UKN1135 - Jul 7, 03:40 UTCJul 7, 08:00 UTC4h 20m
2026-07-02 UKN1134 - Jul 2, 11:00 UTCJul 2, 12:10 UTC1h 10m
2026-07-01 UKN1134 - Jul 1, 17:45 UTCJul 1, 20:50 UTC3h 5m
2026-07-01 UKN1133 - Jul 1, 07:00 UTCJul 1, 10:30 UTC3h 30m
2026-07-01 UKN1133 - Jul 1, 03:45 UTCJul 1, 04:50 UTC1h 5m
2026-06-25 UKN1210 RZE → KRK Jun 25, 21:10 UTCJun 25, 21:35 UTC25m
2026-06-25 UKN1210 - Jun 25, 19:24 UTCJun 25, 20:19 UTC55m
2026-06-24 UKN1209 - Jun 24, 08:49 UTCJun 24, 09:45 UTC55m
2026-06-24 UKN1209 KRK → RZE Jun 24, 05:29 UTCJun 24, 05:59 UTC30m
2026-06-19 UKN1130 - Jun 19, 11:04 UTCJun 19, 12:04 UTC1h 0m
2026-06-18 UKN1130 - Jun 18, 20:50 UTCJun 18, 22:55 UTC2h 5m
2026-06-17 UKN1129 - Jun 17, 17:15 UTCJun 17, 18:20 UTC1h 5m
2026-06-15 UKN1129 - Jun 15, 17:15 UTCJun 15, 19:50 UTC2h 35m
2026-06-15 UKN1129 - Jun 15, 13:10 UTCJun 15, 14:10 UTC1h 0m
2026-06-09 UKN1128 - Jun 9, 21:55 UTCJun 9, 23:05 UTC1h 10m
2026-06-09 UKN1128 - Jun 9, 17:15 UTCJun 9, 20:20 UTC3h 5m
2026-06-08 UKN1127 - Jun 8, 19:40 UTCJun 8, 22:00 UTC2h 20m
2026-06-08 UKN1127 - Jun 8, 15:40 UTCJun 8, 18:10 UTC2h 30m
2026-06-07 UKN1127 - Jun 7, 10:55 UTCJun 7, 13:55 UTC3h 0m
2026-06-07 UKN1127 - Jun 7, 07:05 UTCJun 7, 08:00 UTC55m
2026-06-02 UKN1208 TLL → RZE Jun 2, 17:55 UTCJun 2, 19:25 UTC1h 30m
2026-06-02 UKN1208 - Jun 2, 10:30 UTCJun 2, 11:05 UTC35m
2026-06-01 UKN1207 - Jun 1, 13:35 UTCJun 1, 14:10 UTC35m
2026-06-01 UKN1207 - Jun 1, 04:55 UTCJun 1, 05:40 UTC45m
2026-06-01 UKN1207 - Jun 1, 02:55 UTCJun 1, 03:35 UTC40m
2026-05-28 UKN1126 - May 28, 13:50 UTCMay 28, 15:20 UTC1h 30m
2026-05-28 UKN1125 - May 28, 06:55 UTCMay 28, 09:05 UTC2h 10m
2026-05-27 UKN1125 - May 27, 11:15 UTCMay 27, 11:40 UTC25m
2026-05-15 UKN1406 RZE → KRK May 15, 10:05 UTCMay 15, 10:35 UTC30m
2026-05-14 UKN1406 - May 14, 21:05 UTCMay 14, 23:05 UTC2h 0m
2026-05-13 UKN1405 - May 13, 18:45 UTCMay 13, 20:55 UTC2h 10m
2026-05-13 UKN1122 - May 13, 16:30 UTCMay 13, 17:35 UTC1h 5m
2026-05-13 UKN1121 - May 13, 07:40 UTCMay 13, 08:45 UTC1h 5m
2026-05-12 UKN1121 KRK → RZE May 12, 11:00 UTCMay 12, 11:30 UTC30m
2026-05-04 UKN1120 - May 4, 15:15 UTCMay 4, 18:10 UTC2h 55m
2026-05-03 UKN1119 - May 3, 08:25 UTCMay 3, 11:15 UTC2h 50m
2026-05-03 UKN1119 KRK → RZE May 3, 04:55 UTCMay 3, 05:30 UTC35m
2026-04-28 UKN1204 RZE → KRK Apr 28, 19:05 UTCApr 28, 19:30 UTC25m
2026-04-28 UKN1204 DBV → RZE Apr 28, 16:45 UTCApr 28, 18:10 UTC1h 25m
2026-04-27 UKN1203 - Apr 27, 12:30 UTCApr 27, 13:55 UTC1h 25m
2026-04-25 UKN1118 - Apr 25, 14:30 UTCApr 25, 18:10 UTC3h 40m
2026-04-24 UKN1117 - Apr 24, 07:55 UTCApr 24, 09:45 UTC1h 50m
2026-04-23 UKN1117 - Apr 23, 08:45 UTCApr 23, 11:25 UTC2h 40m
2026-04-23 UKN1117 - Apr 23, 05:40 UTCApr 23, 06:10 UTC30m
2026-04-16 UKN1116 - Apr 16, 20:25 UTCApr 16, 20:45 UTC20m
2026-04-16 UKN1116 - Apr 16, 17:35 UTCApr 16, 19:10 UTC1h 35m
2026-04-15 UKN1115 - Apr 15, 19:05 UTCApr 15, 19:40 UTC35m

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 UR-ABA page for operator, model, and routing details .

Mode-S 50815F frequently asked

What is Mode-S code 50815F?
50815F is an ICAO 24-bit transponder address. Allocated to Ukraine. Assigned to UR-ABA.
Where is Mode-S 50815F registered?
Mode-S code 50815F is allocated to Ukraine (UA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 50815F broadcasting right now?
Yes. Mode-S 50815F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 50815F, octal 24100537, decimal 5,275,999.
What flights does 50815F operate?
Mode-S 50815F has broadcast 20 distinct callsigns, including UKN1115, UKN1127, UKN1207, UKN1129, UKN1117.