Apparatus

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sensors Mode-S transponder

46BC4B

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-OBK · ATR-72-600

Hex
46BC4B
Octal
21536113
Decimal
4,635,723
Country
GR
Tail
SX-OBK
Type
AT76
Broadcasting now · callsign OAL064 · 3,000 ft
Flights observed
714
Distinct callsigns
20
Country
GR
Last broadcast
Jul 26, 21:20 UTC

Current position

46BC4B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 46BC4B 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 20 distinct

Callsign Airline Flights Last seen
AEE390 - 14 2026-06-24
AEE391 - 12 2026-06-24
AEE2MJ Aegean Airlines 10 2026-07-26
OAL9PA - 9 2026-07-07
OAL8SK - 9 2026-07-07
OAL7JS Olympic Airlines 9 2026-07-24
OAL6SK Olympic Airlines 9 2026-07-24
OAL069 Olympic Airlines 9 2026-07-22
OAL028 Olympic Airlines 9 2026-07-25
AEE253 Aegean Airlines 9 2026-07-26
AEE241 Aegean Airlines 9 2026-07-26
AEE240 Aegean Airlines 9 2026-07-26
OAL5NX Olympic Airlines 8 2026-07-24
OAL4NX Olympic Airlines 8 2026-07-24
OAL075 Olympic Airlines 8 2026-07-23
OAL068 - 8 2026-07-23
OAL062 Olympic Airlines 8 2026-07-23
OAL027 Olympic Airlines 8 2026-07-25
OAL026 Olympic Airlines 8 2026-07-25
OAL074 Olympic Airlines 7 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AEE297 EFL → ATH Jul 26, 20:15 UTCJul 26, 21:10 UTC55m
2026-07-26 AEE296 ATH → EFL Jul 26, 18:25 UTCJul 26, 19:20 UTC55m
2026-07-26 AEE27H JKH → ATH Jul 26, 16:50 UTCJul 26, 17:25 UTC35m
2026-07-26 AEE276 ATH → JKH Jul 26, 15:25 UTCJul 26, 15:55 UTC30m
2026-07-26 AEE245 SMI → ATH Jul 26, 13:05 UTCJul 26, 13:55 UTC50m
2026-07-26 AEE244 ATH → KGS Jul 26, 11:30 UTCJul 26, 12:10 UTC40m
2026-07-26 AEE253 MJT → ATH Jul 26, 08:55 UTCJul 26, 09:40 UTC45m
2026-07-26 AEE2MJ ATH → MJT Jul 26, 07:30 UTCJul 26, 08:15 UTC45m
2026-07-26 AEE241 SMI → ATH Jul 26, 05:30 UTCJul 26, 06:10 UTC40m
2026-07-26 AEE240 ATH → SMI Jul 26, 03:45 UTCJul 26, 04:20 UTC35m
2026-07-25 AEE975 TGD → ATH Jul 25, 20:35 UTCJul 25, 21:35 UTC1h 0m
2026-07-25 AEE974 ATH → TGD Jul 25, 17:55 UTCJul 25, 18:50 UTC55m
2026-07-25 OAL029 MLO → ATH Jul 25, 16:30 UTCJul 25, 16:50 UTC20m
2026-07-25 OAL028 ATH → MLO Jul 25, 15:30 UTCJul 25, 15:50 UTC20m
2026-07-25 OAL027 MLO → ATH Jul 25, 14:15 UTCJul 25, 14:35 UTC20m
2026-07-25 OAL026 ATH → MLO Jul 25, 13:05 UTCJul 25, 13:30 UTC25m
2026-07-25 OAL039 MLO → ATH Jul 25, 11:10 UTCJul 25, 11:30 UTC20m
2026-07-25 AEE176 SKG → MLO Jul 25, 09:30 UTCJul 25, 10:25 UTC55m
2026-07-25 AEE177 MLO → SKG Jul 25, 07:35 UTCJul 25, 08:40 UTC1h 5m
2026-07-25 OAL038 ATH → MLO Jul 25, 06:15 UTCJul 25, 06:35 UTC20m
2026-07-24 OAL7JS PAS → ATH Jul 24, 15:40 UTCJul 24, 16:10 UTC30m
2026-07-24 OAL6SK ATH → PAS Jul 24, 14:25 UTCJul 24, 14:50 UTC25m
2026-07-24 OAL5NX JNX → ATH Jul 24, 12:45 UTCJul 24, 13:15 UTC30m
2026-07-24 OAL4NX ATH → JNX Jul 24, 11:40 UTCJul 24, 12:05 UTC25m
2026-07-24 AEE3HS JKH → ATH Jul 24, 08:40 UTCJul 24, 09:15 UTC35m
2026-07-24 AEE2NS - Jul 24, 07:20 UTCJul 24, 07:40 UTC20m
2026-07-24 OAL1ML - Jul 24, 05:50 UTCJul 24, 06:10 UTC20m
2026-07-24 OAL020 - Jul 24, 04:45 UTCJul 24, 05:05 UTC20m
2026-07-24 OAL9KT PAS → ATH Jul 24, 03:25 UTCJul 24, 03:50 UTC25m
2026-07-23 OAL8KC ATH → PAS Jul 23, 16:45 UTCJul 23, 17:10 UTC25m
2026-07-23 OAL075 PAS → ATH Jul 23, 14:10 UTCJul 23, 14:35 UTC25m
2026-07-23 AEE198 HER → PAS Jul 23, 13:10 UTCJul 23, 13:30 UTC20m
2026-07-23 AEE199 PAS → HER Jul 23, 11:25 UTCJul 23, 11:45 UTC20m
2026-07-23 OAL068 - Jul 23, 10:10 UTCJul 23, 10:35 UTC25m
2026-07-23 OAL063 PAS → ATH Jul 23, 06:50 UTCJul 23, 07:15 UTC25m
2026-07-23 OAL062 ATH → PAS Jul 23, 05:35 UTCJul 23, 06:00 UTC25m
2026-07-23 OAL1PA PAS → ATH Jul 23, 04:20 UTCJul 23, 04:45 UTC25m
2026-07-23 OAL060 ATH → PAS Jul 23, 03:05 UTCJul 23, 03:35 UTC30m
2026-07-22 AEE4PR ATH → JMK Jul 22, 22:20 UTCJul 22, 23:40 UTC1h 20m
2026-07-22 AEE279 JKH → ATH Jul 22, 20:55 UTCJul 22, 21:25 UTC30m
2026-07-22 AEE278 ATH → JKH Jul 22, 19:35 UTCJul 22, 20:00 UTC25m
2026-07-22 OAL029 - Jul 22, 16:45 UTCJul 22, 17:20 UTC35m
2026-07-22 OAL028 - Jul 22, 15:50 UTCJul 22, 16:10 UTC20m
2026-07-22 OAL027 MLO → ATH Jul 22, 14:20 UTCJul 22, 14:50 UTC30m
2026-07-22 OAL026 - Jul 22, 13:10 UTCJul 22, 13:30 UTC20m
2026-07-22 OAL069 PAS → ATH Jul 22, 11:40 UTCJul 22, 12:05 UTC25m
2026-07-22 OAL090 ATH → JSI Jul 22, 04:50 UTCJul 22, 05:25 UTC35m
2026-07-22 OAL9KT PAS → ATH Jul 22, 03:20 UTCJul 22, 03:45 UTC25m
2026-07-21 OAL8KC ATH → PAS Jul 21, 16:40 UTCJul 21, 17:10 UTC30m
2026-07-21 OAL075 PAS → ATH Jul 21, 14:10 UTCJul 21, 14:40 UTC30m

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

Mode-S 46BC4B frequently asked

What is Mode-S code 46BC4B?
46BC4B is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-OBK.
Where is Mode-S 46BC4B registered?
Mode-S code 46BC4B is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46BC4B broadcasting right now?
Yes. Mode-S 46BC4B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46BC4B, octal 21536113, decimal 4,635,723.
What flights does 46BC4B operate?
Mode-S 46BC4B has broadcast 20 distinct callsigns, including AEE390, AEE391, AEE2MJ, OAL9PA, OAL8SK.