Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
No current signal · last broadcast 1d ago
Flights observed
681
Distinct callsigns
20
Country
GR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 46BC51.

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
AEE145 - 10 2026-07-07
OAL6SK - 9 2026-07-09
OAL5NX Olympic Airlines 9 2026-06-23
OAL044 - 9 2026-07-09
AEE273 - 9 2026-07-04
AEE272 - 9 2026-07-04
AEE167 - 9 2026-07-06
AEE166 - 9 2026-07-06
OAL3KA - 8 2026-06-25
OAL099 - 8 2026-07-10
OAL069 - 8 2026-07-03
OAL045 - 8 2026-07-09
AEE8KS - 8 2026-07-09
AEE3GS - 8 2026-06-22
AEE276 - 8 2026-07-04
AEE1GS - 8 2026-07-10
AEE160 - 8 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 OAL3003 SKG → ATH Jul 13, 05:25 UTCJul 13, 06:20 UTC55m
2026-07-12 AEE593 - Jul 12, 22:20 UTCJul 12, 23:20 UTC1h 0m
2026-07-12 AEE592 - Jul 12, 20:35 UTCJul 12, 21:40 UTC1h 5m
2026-07-12 OAL8TS - Jul 12, 18:50 UTCJul 12, 19:45 UTC55m
2026-07-12 OAL080 - Jul 12, 17:10 UTCJul 12, 18:01 UTC50m
2026-07-12 AEE579 - Jul 12, 09:05 UTCJul 12, 10:10 UTC1h 5m
2026-07-12 AEE587 SKG → JSY Jul 12, 07:25 UTCJul 12, 08:20 UTC55m
2026-07-12 AEE595 PAS → SKG Jul 12, 04:55 UTCJul 12, 05:55 UTC1h 0m
2026-07-12 AEE594 SKG → PAS Jul 12, 03:05 UTCJul 12, 04:10 UTC1h 5m
2026-07-11 AEE59J - Jul 11, 16:55 UTCJul 11, 18:00 UTC1h 5m
2026-07-11 AEE590 - Jul 11, 14:50 UTCJul 11, 16:05 UTC1h 15m
2026-07-11 AEE579 - Jul 11, 12:45 UTCJul 11, 13:50 UTC1h 5m
2026-07-11 AEE578 - Jul 11, 11:05 UTCJul 11, 12:05 UTC1h 0m
2026-07-11 OAL083 - Jul 11, 09:05 UTCJul 11, 10:15 UTC1h 10m
2026-07-11 OAL082 - Jul 11, 07:05 UTCJul 11, 08:05 UTC1h 0m
2026-07-11 AEE595 - Jul 11, 05:01 UTCJul 11, 06:05 UTC1h 5m
2026-07-11 AEE594 - Jul 11, 03:15 UTCJul 11, 04:20 UTC1h 5m
2026-07-10 AEE585 - Jul 10, 19:35 UTCJul 10, 20:45 UTC1h 10m
2026-07-10 AEE584 - Jul 10, 17:50 UTCJul 10, 18:55 UTC1h 5m
2026-07-10 AEE519 DBV → SKG Jul 10, 15:55 UTCJul 10, 17:00 UTC1h 5m
2026-07-10 AEE518 SKG → DBV Jul 10, 13:45 UTCJul 10, 15:00 UTC1h 15m
2026-07-10 OAL099 - Jul 10, 10:35 UTCJul 10, 11:10 UTC35m
2026-07-10 OAL099 - Jul 10, 09:15 UTCJul 10, 09:55 UTC40m
2026-07-10 OAL040 ATH → JIK Jul 10, 07:55 UTCJul 10, 08:30 UTC35m
2026-07-10 OAL049 SKU → ATH Jul 10, 06:20 UTCJul 10, 06:50 UTC30m
2026-07-10 OAL048 ATH → SKU Jul 10, 04:55 UTCJul 10, 05:20 UTC25m
2026-07-10 AEE1GS KGS → ATH Jul 10, 03:00 UTCJul 10, 03:50 UTC50m
2026-07-09 AEE8KS ATH → KGS Jul 9, 20:50 UTCJul 9, 21:35 UTC45m
2026-07-09 OAL6SK - Jul 9, 15:30 UTCJul 9, 16:00 UTC30m
2026-07-09 OAL6SK - Jul 9, 14:05 UTCJul 9, 14:35 UTC30m
2026-07-09 AEE293 - Jul 9, 12:15 UTCJul 9, 13:05 UTC50m
2026-07-09 AEE292 ATH → EFL Jul 9, 10:40 UTCJul 9, 11:30 UTC50m
2026-07-09 OAL045 - Jul 9, 08:15 UTCJul 9, 08:55 UTC40m
2026-07-09 OAL044 - Jul 9, 06:20 UTCJul 9, 07:10 UTC50m
2026-07-07 AEE145 - Jul 7, 13:30 UTCJul 7, 14:25 UTC55m
2026-07-07 AEE144 - Jul 7, 11:50 UTCJul 7, 12:45 UTC55m
2026-07-07 OAL067 PAS → ATH Jul 7, 09:50 UTCJul 7, 10:15 UTC25m
2026-07-07 OAL066 ATH → PAS Jul 7, 08:35 UTCJul 7, 09:00 UTC25m
2026-07-07 OAL063 PAS → ATH Jul 7, 07:05 UTCJul 7, 07:30 UTC25m
2026-07-07 OAL062 ATH → PAS Jul 7, 05:45 UTCJul 7, 06:10 UTC25m
2026-07-07 OAL1PA PAS → ATH Jul 7, 04:30 UTCJul 7, 04:50 UTC20m
2026-07-07 OAL060 ATH → PAS Jul 7, 03:10 UTCJul 7, 03:35 UTC25m
2026-07-06 AEE8KM - Jul 6, 22:10 UTCJul 6, 22:35 UTC25m
2026-07-06 AEE4PR ATH → JMK Jul 6, 21:00 UTCJul 6, 21:30 UTC30m
2026-07-06 AEE167 - Jul 6, 19:40 UTCJul 6, 20:15 UTC35m
2026-07-06 AEE166 - Jul 6, 17:35 UTCJul 6, 18:15 UTC40m
2026-07-06 OAL3003 - Jul 6, 12:25 UTCJul 6, 12:55 UTC30m
2026-07-05 OAL8KC ATH → PAS Jul 5, 16:50 UTCJul 5, 17:15 UTC25m
2026-07-05 OAL026 ATH → ATH Jul 5, 13:50 UTCJul 5, 14:45 UTC55m
2026-07-05 OAL093 - Jul 5, 12:15 UTCJul 5, 12:45 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-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?
No active broadcast right now. Last signal was 1d ago.
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, AEE145, OAL6SK.