Apparatus

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sensors Mode-S transponder

503FC5

ICAO 24-bit transponder address · allocated to Lithuania

Hex
503FC5
Octal
24037705
Decimal
5,259,205
Country
LT
Broadcasting now · callsign ELY5411 · 34,000 ft
Flights observed
158
Distinct callsigns
20
Country
LT
Last broadcast
1h ago

Current position

503FC5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 503FC5 falls within the block assigned to Lithuania (LT) by ICAO Annex 10, Volume III. Every aircraft registered in Lithuania 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
ELY5411 - 19 2026-07-09
ELY5412 - 16 2026-07-07
ELY5112 - 6 2026-07-06
ELY5111 - 6 2026-07-06
ELY5138 El Al Israel Airlines 5 2026-06-24
ELY5137 El Al Israel Airlines 5 2026-06-24
ELY5426 - 4 2026-07-07
ELY5425 - 4 2026-07-07
ELY5188 El Al Israel Airlines 4 2026-06-12
ELY5187 El Al Israel Airlines 4 2026-06-12
ELY5120 - 4 2026-06-29
ELY5119 - 4 2026-06-29
ELY5414 - 3 2026-07-08
ELY5413 - 3 2026-07-08
ELY5406 - 3 2026-07-02
ELY5405 - 3 2026-07-02
ELY5404 El Al Israel Airlines 3 2026-06-30
ELY5403 - 3 2026-06-30
ELY5134 - 3 2026-06-28
ELY5133 - 3 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 ELY5411 - Jul 9, 04:25 UTCJul 9, 05:15 UTC50m
2026-07-08 ELY5414 BSL → TLV Jul 8, 11:20 UTCJul 8, 14:55 UTC3h 35m
2026-07-08 ELY5413 - Jul 8, 04:30 UTCJul 8, 08:35 UTC4h 5m
2026-07-07 ELY5426 - Jul 7, 20:25 UTCJul 7, 22:40 UTC2h 15m
2026-07-07 ELY5425 - Jul 7, 15:55 UTCJul 7, 18:45 UTC2h 50m
2026-07-07 ELY5412 CPH → TLV Jul 7, 10:25 UTCJul 7, 14:20 UTC3h 55m
2026-07-07 ELY5411 TLV → CPH Jul 7, 04:25 UTCJul 7, 08:40 UTC4h 15m
2026-07-06 ELY5112 - Jul 6, 14:55 UTCJul 6, 17:30 UTC2h 35m
2026-07-06 ELY5111 - Jul 6, 10:20 UTCJul 6, 13:05 UTC2h 45m
2026-07-06 ELY5114 BUS → TLV Jul 6, 06:05 UTCJul 6, 08:15 UTC2h 10m
2026-07-06 ELY5113 - Jul 6, 04:00 UTCJul 6, 04:40 UTC40m
2026-07-06 ELY5113 - Jul 6, 02:50 UTCJul 6, 03:30 UTC40m
2026-07-05 ELY5412 - Jul 5, 11:45 UTCJul 5, 15:40 UTC3h 55m
2026-07-05 ELY5411 - Jul 5, 08:55 UTCJul 5, 10:05 UTC1h 10m
2026-07-05 ELY5411 - Jul 5, 05:40 UTCJul 5, 08:50 UTC3h 10m
2026-07-04 ELY5484 TIA → TLV Jul 4, 22:05 UTCJul 5, 00:10 UTC2h 5m
2026-07-03 ELY5183 - Jul 3, 12:35 UTCJul 3, 14:55 UTC2h 20m
2026-07-03 ELY5112 - Jul 3, 08:20 UTCJul 3, 10:50 UTC2h 30m
2026-07-03 ELY5111 TLV → FCO Jul 3, 03:20 UTCJul 3, 06:10 UTC2h 50m
2026-07-02 ELY5406 BUS → TLV Jul 2, 21:25 UTCJul 2, 23:30 UTC2h 5m
2026-07-02 ELY5405 TLV → BUS Jul 2, 18:15 UTCJul 2, 20:05 UTC1h 50m
2026-07-02 ELY5412 - Jul 2, 10:15 UTCJul 2, 14:20 UTC4h 5m
2026-07-02 ELY5411 - Jul 2, 07:05 UTCJul 2, 08:45 UTC1h 40m
2026-07-02 ELY5411 - Jul 2, 04:35 UTCJul 2, 07:00 UTC2h 25m
2026-07-01 ELY5426 AMS → TLV Jul 1, 15:55 UTCJul 1, 18:20 UTC2h 25m
2026-07-01 ELY5425 TLV → AMS Jul 1, 11:20 UTCJul 1, 14:00 UTC2h 40m
2026-07-01 ELY5140 LCA → TLV Jul 1, 06:40 UTCJul 1, 07:25 UTC45m
2026-07-01 ELY5139 TLV → PFO Jul 1, 04:50 UTCJul 1, 05:40 UTC50m
2026-06-30 ELY5404 BUS → TLV Jun 30, 22:20 UTCJul 1, 00:15 UTC1h 55m
2026-06-30 ELY5403 TLV → BUS Jun 30, 18:35 UTCJun 30, 20:25 UTC1h 50m
2026-06-30 ELY5064 - Jun 30, 14:55 UTCJun 30, 16:10 UTC1h 15m
2026-06-30 ELY5063 - Jun 30, 12:00 UTCJun 30, 13:10 UTC1h 10m
2026-06-30 ELY5246 SKG → TLV Jun 30, 06:15 UTCJun 30, 08:20 UTC2h 5m
2026-06-30 ELY5245 TLV → SKG Jun 30, 02:45 UTCJun 30, 04:45 UTC2h 0m
2026-06-29 ELY5142 LCA → TLV Jun 29, 18:44 UTCJun 29, 19:20 UTC35m
2026-06-29 ELY5141 - Jun 29, 16:25 UTCJun 29, 16:59 UTC35m
2026-06-29 ELY5120 - Jun 29, 10:34 UTCJun 29, 13:44 UTC3h 10m
2026-06-29 ELY5119 TLV → KRK Jun 29, 04:30 UTCJun 29, 07:40 UTC3h 10m
2026-06-28 ELY5134 LCA → TLV Jun 28, 20:59 UTCJun 28, 21:40 UTC40m
2026-06-28 ELY5133 - Jun 28, 18:34 UTCJun 28, 19:09 UTC35m
2026-06-28 ELY5468 TLV → TLV Jun 28, 09:30 UTCJun 28, 16:45 UTC7h 15m
2026-06-28 ELY5064 - Jun 28, 06:30 UTCJun 28, 07:44 UTC1h 15m
2026-06-28 ELY5063 - Jun 28, 03:05 UTCJun 28, 04:25 UTC1h 20m
2026-06-27 ELY5134 - Jun 27, 21:34 UTCJun 27, 22:09 UTC35m
2026-06-26 ELY5133 TLV → LCA Jun 26, 14:05 UTCJun 26, 14:55 UTC50m
2026-06-26 ELY5120 KRK → TLV Jun 26, 09:00 UTCJun 26, 12:00 UTC3h 0m
2026-06-26 ELY5119 - Jun 26, 04:00 UTCJun 26, 07:24 UTC3h 25m
2026-06-25 ELY5406 BUS → TLV Jun 25, 21:35 UTCJun 25, 23:39 UTC2h 5m
2026-06-25 ELY5405 TLV → BUS Jun 25, 17:39 UTCJun 25, 19:29 UTC1h 50m
2026-06-25 ELY5412 CPH → TLV Jun 25, 10:35 UTCJun 25, 14:34 UTC4h 0m

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.

Mode-S 503FC5 frequently asked

What is Mode-S code 503FC5?
503FC5 is an ICAO 24-bit transponder address. Allocated to Lithuania.
Where is Mode-S 503FC5 registered?
Mode-S code 503FC5 is allocated to Lithuania (LT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 503FC5 broadcasting right now?
Yes. Mode-S 503FC5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 503FC5, octal 24037705, decimal 5,259,205.
What flights does 503FC5 operate?
Mode-S 503FC5 has broadcast 20 distinct callsigns, including ELY5411, ELY5412, ELY5112, ELY5111, ELY5138.