Apparatus

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sensors Mode-S transponder

46BC55

ICAO 24-bit transponder address · allocated to Greece

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

Hex
46BC55
Octal
21536125
Decimal
4,635,733
Country
GR
Tail
SX-OBU
Type
AT76
Broadcasting now · callsign AEE253 · 9,950 ft
Flights observed
422
Distinct callsigns
20
Country
GR
Last broadcast
1h ago

Current position

46BC55 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 46BC55 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
AEE6SM Aegean Airlines 7 2026-05-29
AEE273 Aegean Airlines 7 2026-05-29
AEE272 Aegean Airlines 7 2026-05-29
AEE247 Aegean Airlines 7 2026-05-29
OAL9NJ Olympic Airlines 6 2026-05-21
OAL8NJ Olympic Airlines 6 2026-05-21
OAL1NX Olympic Airlines 6 2026-05-15
OAL1NG Olympic Airlines 6 2026-05-15
OAL098 Olympic Airlines 6 2026-05-21
OAL093 - 6 2026-05-12
OAL075 Olympic Airlines 6 2026-05-23
OAL074 Olympic Airlines 6 2026-05-23
OAL065 - 6 2026-05-27
AEE5G Aegean Airlines 6 2026-05-17
AEE259 Aegean Airlines 6 2026-05-17
AEE243 Aegean Airlines 6 2026-05-27
AEE242 Aegean Airlines 6 2026-05-27
AEE155 Aegean Airlines 6 2026-05-26
AEE154 Aegean Airlines 6 2026-05-26
AEE144 Aegean Airlines 6 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AEE2MJ ATH → MJT May 30, 07:00 UTCMay 30, 07:15 UTC15m
2026-05-30 AEE241 SMI → ATH May 30, 05:10 UTCMay 30, 05:55 UTC45m
2026-05-30 AEE240 ATH → SMI May 30, 03:50 UTCMay 30, 04:25 UTC35m
2026-05-29 AEE247 SMI → ATH May 29, 16:25 UTCMay 29, 17:10 UTC45m
2026-05-29 AEE6SM ATH → SMI May 29, 15:00 UTCMay 29, 15:35 UTC35m
2026-05-29 OAL5NX JNX → ATH May 29, 13:15 UTCMay 29, 13:40 UTC25m
2026-05-29 OAL4NX ATH → JNX May 29, 11:55 UTCMay 29, 12:20 UTC25m
2026-05-29 AEE273 JKH → ATH May 29, 10:15 UTCMay 29, 10:50 UTC35m
2026-05-29 AEE272 ATH → JKH May 29, 08:55 UTCMay 29, 09:20 UTC25m
2026-05-29 OAL049 SKU → ATH May 29, 06:50 UTCMay 29, 07:20 UTC30m
2026-05-29 OAL048 ATH → SKU May 29, 05:40 UTCMay 29, 06:10 UTC30m
2026-05-29 AEE1GS KGS → ATH May 29, 03:00 UTCMay 29, 03:50 UTC50m
2026-05-28 AEE8KS ATH → KGS May 28, 20:40 UTCMay 28, 21:30 UTC50m
2026-05-28 OAL053 - May 28, 18:25 UTCMay 28, 19:20 UTC55m
2026-05-28 OA052 - May 28, 16:45 UTCMay 28, 17:35 UTC50m
2026-05-28 AEE145 AXD → ATH May 28, 13:30 UTCMay 28, 14:20 UTC50m
2026-05-28 AEE144 ATH → AXD May 28, 11:55 UTCMay 28, 12:45 UTC50m
2026-05-28 OAL067 PAS → ATH May 28, 09:45 UTCMay 28, 10:10 UTC25m
2026-05-28 OAL066 ATH → PAS May 28, 08:35 UTCMay 28, 09:05 UTC30m
2026-05-28 AEE151 KVA → ATH May 28, 06:05 UTCMay 28, 07:05 UTC1h 0m
2026-05-28 AEE150 ATH → KVA May 28, 04:20 UTCMay 28, 05:15 UTC55m
2026-05-27 AEE167 IOA → ATH May 27, 19:35 UTCMay 27, 20:10 UTC35m
2026-05-27 AEE166 ATH → IOA May 27, 17:20 UTCMay 27, 17:55 UTC35m
2026-05-27 AEE27H JKH → ATH May 27, 15:50 UTCMay 27, 16:20 UTC30m
2026-05-27 AEE276 ATH → JKH May 27, 14:25 UTCMay 27, 14:50 UTC25m
2026-05-27 AEE243 SMI → ATH May 27, 12:10 UTCMay 27, 12:50 UTC40m
2026-05-27 AEE242 ATH → SMI May 27, 10:15 UTCMay 27, 10:50 UTC35m
2026-05-27 OAL065 PAS → ATH May 27, 08:45 UTCMay 27, 09:15 UTC30m
2026-05-27 OAL064 ATH → PAS May 27, 07:35 UTCMay 27, 08:05 UTC30m
2026-05-26 AEE155 KVA → ATH May 26, 19:05 UTCMay 26, 20:09 UTC1h 5m
2026-05-26 AEE154 ATH → KVA May 26, 17:25 UTCMay 26, 18:14 UTC50m
2026-05-26 AEE7AR KGS → ATH May 26, 15:24 UTCMay 26, 16:20 UTC55m
2026-05-26 AEE226 ATH → KGS May 26, 13:54 UTCMay 26, 14:45 UTC50m
2026-05-26 AEE243 SMI → ATH May 26, 12:00 UTCMay 26, 12:45 UTC45m
2026-05-26 AEE242 ATH → SMI May 26, 10:29 UTCMay 26, 11:05 UTC35m
2026-05-26 OAL065 - May 26, 08:54 UTCMay 26, 09:29 UTC35m
2026-05-26 OAL64 ATH → PAS May 26, 07:40 UTCMay 26, 08:10 UTC30m
2026-05-26 OAL1ML - May 26, 05:45 UTCMay 26, 06:04 UTC20m
2026-05-26 OAL020 - May 26, 04:35 UTCMay 26, 04:54 UTC20m
2026-05-26 OAL9KT PAS → ATH May 26, 03:19 UTCMay 26, 03:50 UTC30m
2026-05-25 OAL8KC ATH → PAS May 25, 16:40 UTCMay 25, 17:05 UTC25m
2026-05-25 OA075 - May 25, 14:15 UTCMay 25, 14:45 UTC30m
2026-05-25 OA074 - May 25, 13:00 UTCMay 25, 13:30 UTC30m
2026-05-25 OA069 - May 25, 11:30 UTCMay 25, 12:00 UTC30m
2026-05-25 OA68 - May 25, 10:25 UTCMay 25, 10:50 UTC25m
2026-05-25 OAL043 KIT → ATH May 25, 08:40 UTCMay 25, 09:10 UTC30m
2026-05-25 OAL042 ATH → KIT May 25, 07:10 UTCMay 25, 07:40 UTC30m
2026-05-25 OAL1ML - May 25, 05:50 UTCMay 25, 06:15 UTC25m
2026-05-25 OAL020 - May 25, 04:45 UTCMay 25, 05:05 UTC20m
2026-05-25 AEE985 SKP → ATH May 25, 02:30 UTCMay 25, 03:35 UTC1h 5m

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

Mode-S 46BC55 frequently asked

What is Mode-S code 46BC55?
46BC55 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-OBU.
Where is Mode-S 46BC55 registered?
Mode-S code 46BC55 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46BC55 broadcasting right now?
Yes. Mode-S 46BC55 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46BC55, octal 21536125, decimal 4,635,733.
What flights does 46BC55 operate?
Mode-S 46BC55 has broadcast 20 distinct callsigns, including AEE6SM, AEE273, AEE272, AEE247, OAL9NJ.