Apparatus

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sensors Mode-S transponder

46BC51

ICAO 24-bit transponder address · allocated to Greece

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

Hex
46BC51
Octal
21536121
Decimal
4,635,729
Country
GR
Tail
SX-OBQ
Type
AT76
Broadcasting now · callsign AEE243 · 11,100 ft
Flights observed
794
Distinct callsigns
20
Country
GR
Last broadcast
Jul 26, 21:10 UTC

Current position

46BC51 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 46BC51 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
AEE241 - 12 2026-07-04
AEE240 - 12 2026-07-04
AEE144 - 12 2026-07-07
OAL6SK Olympic Airlines 11 2026-07-26
OAL5NX Olympic Airlines 11 2026-07-26
OAL044 Olympic Airlines 11 2026-07-24
OAL013 Olympic Airlines 11 2026-07-26
OAL045 Olympic Airlines 10 2026-07-24
OAL012 Olympic Airlines 10 2026-07-26
AEE167 Aegean Airlines 10 2026-07-24
AEE166 Aegean Airlines 10 2026-07-24
AEE145 - 10 2026-07-07
OAL7JS Olympic Airlines 9 2026-07-26
OAL069 - 9 2026-07-19
AEE276 - 9 2026-07-20
AEE273 - 9 2026-07-04
AEE272 - 9 2026-07-04
AEE155 Aegean Airlines 9 2026-07-26
AEE154 Aegean Airlines 9 2026-07-26
OAL8KC - 8 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AEE155 KVA → ATH Jul 26, 20:00 UTCJul 26, 21:05 UTC1h 5m
2026-07-26 AEE154 ATH → KVA Jul 26, 17:55 UTCJul 26, 19:00 UTC1h 5m
2026-07-26 OAL7JS PAS → ATH Jul 26, 16:20 UTCJul 26, 16:45 UTC25m
2026-07-26 OAL6SK ATH → PAS Jul 26, 15:10 UTCJul 26, 15:35 UTC25m
2026-07-26 OAL5NX JNX → ATH Jul 26, 13:10 UTCJul 26, 13:40 UTC30m
2026-07-26 OAL4NX ATH → JNX Jul 26, 12:00 UTCJul 26, 12:25 UTC25m
2026-07-26 OAL013 JNX → ATH Jul 26, 10:05 UTCJul 26, 10:30 UTC25m
2026-07-26 OAL012 ATH → JNX Jul 26, 08:50 UTCJul 26, 09:15 UTC25m
2026-07-26 OAL1NX JNX → ATH Jul 26, 07:10 UTCJul 26, 07:35 UTC25m
2026-07-26 OAL1NG ATH → JNX Jul 26, 06:00 UTCJul 26, 06:25 UTC25m
2026-07-26 OAL009 - Jul 26, 04:25 UTCJul 26, 04:50 UTC25m
2026-07-26 OAL008 - Jul 26, 03:15 UTCJul 26, 03:40 UTC25m
2026-07-25 AEE243 SMI → ATH Jul 25, 08:45 UTCJul 25, 09:30 UTC45m
2026-07-25 AEE242 ATH → SMI Jul 25, 06:55 UTCJul 25, 07:25 UTC30m
2026-07-25 AEE271 JKH → ATH Jul 25, 05:35 UTCJul 25, 06:05 UTC30m
2026-07-25 AEE270 ATH → JKH Jul 25, 04:15 UTCJul 25, 04:40 UTC25m
2026-07-24 AEE167 IOA → ATH Jul 24, 20:30 UTCJul 24, 20:55 UTC25m
2026-07-24 AEE166 ATH → IOA Jul 24, 18:05 UTCJul 24, 18:55 UTC50m
2026-07-24 OAL045 JSH → ATH Jul 24, 16:15 UTCJul 24, 17:15 UTC1h 0m
2026-07-24 OAL044 ATH → JSH Jul 24, 14:25 UTCJul 24, 15:10 UTC45m
2026-07-24 AEE275 JKH → ATH Jul 24, 12:55 UTCJul 24, 13:30 UTC35m
2026-07-24 AEE274 ATH → JKH Jul 24, 11:30 UTCJul 24, 11:50 UTC20m
2026-07-24 OAL063 PAS → ATH Jul 24, 07:30 UTCJul 24, 08:00 UTC30m
2026-07-24 OAL062 ATH → PAS Jul 24, 05:50 UTCJul 24, 06:20 UTC30m
2026-07-24 OAL1PA PAS → ATH Jul 24, 04:25 UTCJul 24, 04:50 UTC25m
2026-07-24 OAL060 ATH → PAS Jul 24, 03:10 UTCJul 24, 03:40 UTC30m
2026-07-23 OAL053 - Jul 23, 18:20 UTCJul 23, 19:00 UTC40m
2026-07-23 OAL052 ATH → ZTH Jul 23, 16:45 UTCJul 23, 17:35 UTC50m
2026-07-23 OAL7JS PAS → ATH Jul 23, 15:35 UTCJul 23, 16:00 UTC25m
2026-07-23 OAL6SK ATH → PAS Jul 23, 14:25 UTCJul 23, 14:55 UTC30m
2026-07-23 OAL5NX JNX → ATH Jul 23, 12:55 UTCJul 23, 13:25 UTC30m
2026-07-23 OAL4NX ATH → JNX Jul 23, 11:55 UTCJul 23, 12:20 UTC25m
2026-07-23 OAL013 JNX → ATH Jul 23, 10:05 UTCJul 23, 10:35 UTC30m
2026-07-23 OAL012 ATH → JNX Jul 23, 09:05 UTCJul 23, 09:30 UTC25m
2026-07-23 OAL1NX JNX → ATH Jul 23, 07:10 UTCJul 23, 07:40 UTC30m
2026-07-23 OAL1NG ATH → JNX Jul 23, 06:05 UTCJul 23, 06:30 UTC25m
2026-07-23 OAL009 - Jul 23, 04:35 UTCJul 23, 05:05 UTC30m
2026-07-23 OAL008 - Jul 23, 03:25 UTCJul 23, 03:50 UTC25m
2026-07-22 AEE155 KVA → ATH Jul 22, 19:55 UTCJul 22, 20:55 UTC1h 0m
2026-07-22 AEE154 ATH → KVA Jul 22, 17:55 UTCJul 22, 19:10 UTC1h 15m
2026-07-22 OAL007 - Jul 22, 16:20 UTCJul 22, 16:55 UTC35m
2026-07-22 OAL006 - Jul 22, 15:10 UTCJul 22, 15:40 UTC30m
2026-07-22 OAL073 PAS → ATH Jul 22, 13:55 UTCJul 22, 14:25 UTC30m
2026-07-22 OAL072 ATH → PAS Jul 22, 12:45 UTCJul 22, 13:05 UTC20m
2026-07-22 AEE150 ATH → KVA Jul 22, 04:20 UTCJul 22, 05:20 UTC1h 0m
2026-07-20 AEE8KM - Jul 20, 22:10 UTCJul 20, 22:35 UTC25m
2026-07-20 AEE4PR ATH → JMK Jul 20, 21:05 UTCJul 20, 21:30 UTC25m
2026-07-20 AEE155 KVA → ATH Jul 20, 18:50 UTCJul 20, 19:45 UTC55m
2026-07-20 AEE154 ATH → KVA Jul 20, 17:20 UTCJul 20, 18:15 UTC55m
2026-07-20 AEE27H JKH → ATH Jul 20, 16:00 UTCJul 20, 16:35 UTC35m

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

Mode-S 46BC51 frequently asked

What is Mode-S code 46BC51?
46BC51 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-OBQ.
Where is Mode-S 46BC51 registered?
Mode-S code 46BC51 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46BC51 broadcasting right now?
Yes. Mode-S 46BC51 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46BC51, octal 21536121, decimal 4,635,729.
What flights does 46BC51 operate?
Mode-S 46BC51 has broadcast 20 distinct callsigns, including AEE241, AEE240, AEE144, OAL6SK, OAL5NX.