Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

503CB3

ICAO 24-bit transponder address · allocated to Lithuania

Currently assigned to LY-TFS · BOEING 737-800

Hex
503CB3
Octal
24036263
Decimal
5,258,419
Country
LT
Tail
LY-TFS
Type
B738
No current signal · last broadcast 1h ago
Flights observed
242
Distinct callsigns
20
Country
LT
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 503CB3.

Country allocation

The ICAO 24-bit address 503CB3 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
ELY5063 El Al Israel Airlines 10 2026-07-21
ELY5138 El Al Israel Airlines 9 2026-06-16
ELY5137 El Al Israel Airlines 9 2026-06-16
ELY5246 El Al Israel Airlines 8 2026-06-09
ELY5245 El Al Israel Airlines 8 2026-06-09
ELY5183 El Al Israel Airlines 8 2026-07-24
ELY5129 El Al Israel Airlines 8 2026-07-19
ELY5120 El Al Israel Airlines 8 2026-06-19
ELY5119 El Al Israel Airlines 8 2026-06-19
ELY5064 El Al Israel Airlines 8 2026-07-21
ELY5112 - 7 2026-07-24
ELY5111 El Al Israel Airlines 7 2026-07-24
ELY5102 El Al Israel Airlines 7 2026-06-10
ELY5101 El Al Israel Airlines 7 2026-06-10
ELY5032 - 7 2026-06-18
ELY5031 El Al Israel Airlines 7 2026-06-18
ELY5468 El Al Israel Airlines 5 2026-07-19
ELY5467 - 5 2026-07-19
ELY5184 El Al Israel Airlines 5 2026-06-18
ELY5141 El Al Israel Airlines 5 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ELY5484 TIA → TLV Jul 25, 22:05 UTCJul 26, 00:05 UTC2h 0m
2026-07-24 ELY5183 TLV → TIA Jul 24, 13:15 UTCJul 24, 15:25 UTC2h 10m
2026-07-24 ELY5112 - Jul 24, 08:45 UTCJul 24, 11:15 UTC2h 30m
2026-07-24 ELY5111 TLV → FCO Jul 24, 04:05 UTCJul 24, 07:00 UTC2h 55m
2026-07-23 ELY5450 PVK → TLV Jul 23, 17:35 UTCJul 23, 19:20 UTC1h 45m
2026-07-23 ELY5449 TLV → PVK Jul 23, 13:20 UTCJul 23, 15:15 UTC1h 55m
2026-07-23 ELY5458 - Jul 23, 09:25 UTCJul 23, 11:20 UTC1h 55m
2026-07-23 ELY5457 TLV → EFL Jul 23, 05:50 UTCJul 23, 08:10 UTC2h 20m
2026-07-22 ELY5426 AMS → TLV Jul 22, 15:45 UTCJul 22, 17:55 UTC2h 10m
2026-07-22 ELY5425 - Jul 22, 11:30 UTCJul 22, 13:50 UTC2h 20m
2026-07-22 ELY5139 TLV → PFO Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-21 ELY5182 ZAG → TLV Jul 21, 23:45 UTCJul 22, 02:30 UTC2h 45m
2026-07-21 ELY5181 TLV → ZAG Jul 21, 19:15 UTCJul 21, 22:10 UTC2h 55m
2026-07-21 ELY5064 BCN → TLV Jul 21, 14:50 UTCJul 21, 16:05 UTC1h 15m
2026-07-21 ELY5063 TLV → BCN Jul 21, 11:10 UTCJul 21, 12:20 UTC1h 10m
2026-07-21 ELY5466 TIV → TLV Jul 21, 07:00 UTCJul 21, 09:15 UTC2h 15m
2026-07-21 ELY5465 TLV → TIV Jul 21, 02:10 UTCJul 21, 04:20 UTC2h 10m
2026-07-20 ELY5426 - Jul 20, 21:20 UTCJul 20, 23:40 UTC2h 20m
2026-07-20 ELY5425 - Jul 20, 17:00 UTCJul 20, 19:40 UTC2h 40m
2026-07-20 ELY5414 BSL → TLV Jul 20, 10:35 UTCJul 20, 14:15 UTC3h 40m
2026-07-20 ELY5413 TLV → BSL Jul 20, 04:50 UTCJul 20, 08:55 UTC4h 5m
2026-07-20 ELY5130 RMO → TLV Jul 20, 00:05 UTCJul 20, 02:20 UTC2h 15m
2026-07-19 ELY5129 TLV → RMO Jul 19, 18:45 UTCJul 19, 20:55 UTC2h 10m
2026-07-19 ELY5468 TIV → TLV Jul 19, 13:25 UTCJul 19, 15:30 UTC2h 5m
2026-07-19 ELY5467 - Jul 19, 09:05 UTCJul 19, 11:15 UTC2h 10m
2026-07-18 KLJ5612 KUN → TLV Jul 18, 20:10 UTCJul 18, 23:55 UTC3h 45m
2026-06-24 KLJ6968 LCA → KUN Jun 24, 13:05 UTCJun 24, 16:45 UTC3h 40m
2026-06-19 ELY5133 TLV → LCA Jun 19, 13:29 UTCJun 19, 14:04 UTC35m
2026-06-19 ELY5120 TBS → TLV Jun 19, 08:50 UTCJun 19, 11:49 UTC3h 0m
2026-06-19 ELY5119 TLV → KRK Jun 19, 03:55 UTCJun 19, 07:25 UTC3h 30m
2026-06-18 ELY5184 TIA → TLV Jun 18, 20:45 UTCJun 18, 23:05 UTC2h 20m
2026-06-18 ELY5183 TLV → TIA Jun 18, 16:30 UTCJun 18, 18:45 UTC2h 15m
2026-06-18 ELY5032 - Jun 18, 12:40 UTCJun 18, 14:10 UTC1h 30m
2026-06-18 ELY5031 TLV → RHO Jun 18, 09:15 UTCJun 18, 10:30 UTC1h 15m
2026-06-18 ELY5063 TLV → BCN Jun 18, 03:10 UTCJun 18, 07:15 UTC4h 5m
2026-06-17 ELY5414 - Jun 17, 10:45 UTCJun 17, 14:30 UTC3h 45m
2026-06-17 ELY5413 TLV → BSL Jun 17, 04:35 UTCJun 17, 08:35 UTC4h 0m
2026-06-16 ELY5138 PFO → TLV Jun 16, 21:15 UTCJun 16, 21:55 UTC40m
2026-06-16 ELY5137 TLV → PFO Jun 16, 18:05 UTCJun 16, 18:50 UTC45m
2026-06-16 ELY5468 TIV → TLV Jun 16, 13:19 UTCJun 16, 15:40 UTC2h 20m
2026-06-16 ELY5467 TLV → TIV Jun 16, 09:15 UTCJun 16, 11:40 UTC2h 25m
2026-06-16 ELY5132 LCA → TLV Jun 16, 06:45 UTCJun 16, 07:20 UTC35m
2026-06-16 ELY5131 TLV → LCA Jun 16, 03:55 UTCJun 16, 04:30 UTC35m
2026-06-15 ELY5112 - Jun 15, 16:49 UTCJun 15, 19:20 UTC2h 30m
2026-06-15 ELY5111 TLV → FCO Jun 15, 11:49 UTCJun 15, 14:40 UTC2h 50m
2026-06-15 ELY5194 SSH → TLV Jun 15, 07:10 UTCJun 15, 10:15 UTC3h 5m
2026-06-15 ELY5193 TLV → SSH Jun 15, 02:24 UTCJun 15, 06:04 UTC3h 40m
2026-06-14 KLJ6013 - Jun 14, 13:25 UTCJun 14, 17:15 UTC3h 50m
2026-06-12 KLJ6012 - Jun 12, 13:30 UTCJun 12, 17:05 UTC3h 35m
2026-06-12 ELY5435 TLV → LCA Jun 12, 10:35 UTCJun 12, 11:15 UTC40m

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 LY-TFS page for operator, model, and routing details .

Mode-S 503CB3 frequently asked

What is Mode-S code 503CB3?
503CB3 is an ICAO 24-bit transponder address. Allocated to Lithuania. Assigned to LY-TFS.
Where is Mode-S 503CB3 registered?
Mode-S code 503CB3 is allocated to Lithuania (LT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 503CB3 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 503CB3, octal 24036263, decimal 5,258,419.
What flights does 503CB3 operate?
Mode-S 503CB3 has broadcast 20 distinct callsigns, including ELY5063, ELY5138, ELY5137, ELY5246, ELY5245.