Apparatus

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sensors Mode-S transponder

46A199

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-HLY · BELL 505 JetRanger X

Hex
46A199
Octal
21520631
Decimal
4,628,889
Country
GR
Tail
SX-HLY
Type
B505
No current signal · last broadcast 16h ago
Flights observed
48
Distinct callsigns
1
Country
GR
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 46A199.

Country allocation

The ICAO 24-bit address 46A199 falls within the block assigned to Greece (GR) by ICAO Annex 10, Volume III. Every aircraft registered in Greece 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 1 distinct

Callsign Airline Flights Last seen
SXHLY - 48 2026-06-14

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-06-14 SXHLY - Jun 14, 06:30 UTCJun 14, 06:55 UTC25m
2026-06-14 SXHLY - Jun 14, 04:55 UTCJun 14, 05:15 UTC20m
2026-06-12 SXHLY - Jun 12, 10:10 UTCJun 12, 10:50 UTC40m
2026-06-12 SXHLY - Jun 12, 08:50 UTCJun 12, 09:25 UTC35m
2026-06-11 SXHLY - Jun 11, 10:15 UTCJun 11, 10:50 UTC35m
2026-06-11 SXHLY - Jun 11, 09:00 UTCJun 11, 09:40 UTC40m
2026-06-11 SXHLY - Jun 11, 07:35 UTCJun 11, 07:45 UTC10m
2026-06-10 SXHLY - Jun 10, 11:20 UTCJun 10, 11:55 UTC35m
2026-06-10 SXHLY - Jun 10, 10:35 UTCJun 10, 10:45 UTC10m
2026-06-10 SXHLY - Jun 10, 08:40 UTCJun 10, 08:55 UTC15m
2026-06-10 SXHLY JMK → JMK Jun 10, 07:25 UTCJun 10, 07:50 UTC25m
2026-06-10 SXHLY - Jun 10, 05:50 UTCJun 10, 06:10 UTC20m
2026-06-09 SXHLY - Jun 9, 16:45 UTCJun 9, 17:10 UTC25m
2026-06-09 SXHLY - Jun 9, 13:15 UTCJun 9, 14:00 UTC45m
2026-06-09 SXHLY - Jun 9, 11:55 UTCJun 9, 12:35 UTC40m
2026-06-07 SXHLY - Jun 7, 06:45 UTCJun 7, 07:00 UTC15m
2026-06-07 SXHLY - Jun 7, 06:20 UTCJun 7, 06:30 UTC10m
2026-06-06 SXHLY - Jun 6, 09:50 UTCJun 6, 10:25 UTC35m
2026-06-06 SXHLY - Jun 6, 08:40 UTCJun 6, 09:19 UTC40m
2026-06-04 SXHLY - Jun 4, 12:15 UTCJun 4, 13:00 UTC45m
2026-06-04 SXHLY - Jun 4, 10:05 UTCJun 4, 11:05 UTC1h 0m
2026-06-04 SXHLY - Jun 4, 09:40 UTCJun 4, 09:55 UTC15m
2026-06-03 SXHLY - Jun 3, 10:05 UTCJun 3, 10:20 UTC15m
2026-06-03 SXHLY - Jun 3, 09:35 UTCJun 3, 09:45 UTC10m
2026-06-03 SXHLY - Jun 3, 08:05 UTCJun 3, 08:20 UTC15m
2026-06-01 SXHLY - Jun 1, 13:20 UTCJun 1, 14:05 UTC45m
2026-06-01 SXHLY - Jun 1, 11:50 UTCJun 1, 12:35 UTC45m
2026-05-31 SXHLY - May 31, 11:05 UTCMay 31, 11:40 UTC35m
2026-05-31 SXHLY - May 31, 10:20 UTCMay 31, 10:30 UTC10m
2026-05-31 SXHLY - May 31, 09:00 UTCMay 31, 09:25 UTC25m
2026-05-30 SXHLY - May 30, 13:15 UTCMay 30, 14:05 UTC50m
2026-05-29 SXHLY - May 29, 13:15 UTCMay 29, 13:40 UTC25m
2026-05-29 SXHLY - May 29, 12:50 UTCMay 29, 13:00 UTC10m
2026-05-29 SXHLY - May 29, 10:10 UTCMay 29, 12:00 UTC1h 50m
2026-05-20 SXHLY - May 20, 09:00 UTCMay 20, 09:35 UTC35m
2026-05-17 SXHLY - May 17, 14:45 UTCMay 17, 15:25 UTC40m
2026-05-17 SXHLY - May 17, 12:40 UTCMay 17, 13:25 UTC45m
2026-05-14 SXHLY - May 14, 07:25 UTCMay 14, 09:15 UTC1h 50m
2026-05-06 SXHLY - May 6, 10:15 UTCMay 6, 10:30 UTC15m
2026-05-06 SXHLY - May 6, 09:55 UTCMay 6, 10:05 UTC10m
2026-05-03 SXHLY - May 3, 13:20 UTCMay 3, 14:00 UTC40m
2026-05-03 SXHLY - May 3, 05:40 UTCMay 3, 06:20 UTC40m
2026-04-30 SXHLY - Apr 30, 15:15 UTCApr 30, 15:35 UTC20m
2026-04-30 SXHLY - Apr 30, 14:15 UTCApr 30, 14:40 UTC25m
2026-04-21 SXHLY - Apr 21, 13:35 UTCApr 21, 14:15 UTC40m
2026-04-21 SXHLY - Apr 21, 11:05 UTCApr 21, 11:45 UTC40m
2026-04-18 SXHLY - Apr 18, 14:15 UTCApr 18, 14:55 UTC40m
2026-04-18 SXHLY - Apr 18, 13:00 UTCApr 18, 13:10 UTC10m

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 SX-HLY page for operator, model, and routing details .

Mode-S 46A199 frequently asked

What is Mode-S code 46A199?
46A199 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-HLY.
Where is Mode-S 46A199 registered?
Mode-S code 46A199 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46A199 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46A199, octal 21520631, decimal 4,628,889.
What flights does 46A199 operate?
Mode-S 46A199 has broadcast 1 distinct callsign, including SXHLY.