Apparatus

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sensors Mode-S transponder

46D276

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-TSV

Hex
46D276
Octal
21551166
Decimal
4,641,398
Country
GR
Tail
SX-TSV
Type
AT76
Broadcasting now · callsign SEH311 · 375 ft
Flights observed
696
Distinct callsigns
20
Country
GR
Last broadcast
1h ago

Current position

46D276 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 46D276 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
SEH6JT - 12 2026-06-27
SEH474 - 12 2026-07-13
SEH2DT - 12 2026-07-04
SEH1XD - 12 2026-07-04
SEH6MT - 11 2026-07-13
SEH6AK - 11 2026-07-12
SEH4CQ - 11 2026-07-02
SEH7KA - 10 2026-07-12
SEH6TR Sky Express 10 2026-06-27
SEH5DQ Sky Express 10 2026-06-21
SEH5AM - 10 2026-07-13
SEH475 - 10 2026-07-11
SEH3DQ - 10 2026-07-02
SEH2CA - 10 2026-07-14
SEH1CF - 10 2026-07-14
SEH9TR - 9 2026-07-03
SEH9JT - 9 2026-07-03
SEH8TR - 9 2026-07-02
SEH6JA - 9 2026-06-24
SEH6CQ Sky Express 9 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SEH510 SKG → SMI Jul 14, 12:15 UTCJul 14, 13:15 UTC1h 0m
2026-07-14 SEH6UG SKU → SKU Jul 14, 09:40 UTCJul 14, 11:25 UTC1h 45m
2026-07-14 SEH2HG ATH → SKG Jul 14, 08:15 UTCJul 14, 09:05 UTC50m
2026-07-14 SEH2CA - Jul 14, 05:45 UTCJul 14, 06:30 UTC45m
2026-07-14 SEH1CF - Jul 14, 03:45 UTCJul 14, 04:25 UTC40m
2026-07-13 SEH6MT JMK → ATH Jul 13, 19:30 UTCJul 13, 19:55 UTC25m
2026-07-13 SEH5AM - Jul 13, 18:20 UTCJul 13, 18:45 UTC25m
2026-07-13 SEH4JA - Jul 13, 17:00 UTCJul 13, 17:40 UTC40m
2026-07-13 SEH7KH - Jul 13, 15:25 UTCJul 13, 16:10 UTC45m
2026-07-13 SEH571 - Jul 13, 13:35 UTCJul 13, 14:40 UTC1h 5m
2026-07-13 SEH474 ATH → PAS Jul 13, 12:25 UTCJul 13, 12:50 UTC25m
2026-07-13 SEH403 - Jul 13, 10:30 UTCJul 13, 11:00 UTC30m
2026-07-13 SEH402 - Jul 13, 09:30 UTCJul 13, 09:55 UTC25m
2026-07-13 SEH6HS SOF → ATH Jul 13, 06:45 UTCJul 13, 08:20 UTC1h 35m
2026-07-13 SEH6SF - Jul 13, 04:20 UTCJul 13, 05:31 UTC1h 10m
2026-07-12 SEH7KA - Jul 12, 20:50 UTCJul 12, 21:35 UTC45m
2026-07-12 SEH6AK ATH → KGS Jul 12, 19:10 UTCJul 12, 20:05 UTC55m
2026-07-12 SEH7LA - Jul 12, 17:25 UTCJul 12, 18:10 UTC45m
2026-07-12 SEH6EL ATH → EFL Jul 12, 15:50 UTCJul 12, 16:45 UTC55m
2026-07-12 SEH407 - Jul 12, 14:01 UTCJul 12, 14:25 UTC25m
2026-07-12 SEH406 - Jul 12, 12:55 UTCJul 12, 13:20 UTC25m
2026-07-12 SEH5IK JIK → ATH Jul 12, 11:25 UTCJul 12, 12:05 UTC40m
2026-07-12 SEH4IK ATH → JIK Jul 12, 10:10 UTCJul 12, 10:45 UTC35m
2026-07-12 SEH2CA - Jul 12, 06:15 UTCJul 12, 07:01 UTC45m
2026-07-12 SEH1CF - Jul 12, 03:55 UTCJul 12, 04:50 UTC55m
2026-07-11 SEH6DT - Jul 11, 20:40 UTCJul 11, 21:30 UTC50m
2026-07-11 SEH5XD - Jul 11, 18:50 UTCJul 11, 19:40 UTC50m
2026-07-11 SEH477 - Jul 11, 17:25 UTCJul 11, 17:50 UTC25m
2026-07-11 SEH476 ATH → PAS Jul 11, 16:20 UTCJul 11, 16:45 UTC25m
2026-07-11 SEH475 PAS → ATH Jul 11, 14:40 UTCJul 11, 15:05 UTC25m
2026-07-11 SEH474 ATH → PAS Jul 11, 13:20 UTCJul 11, 13:45 UTC25m
2026-07-11 SEH233 JMK → ATH Jul 11, 11:55 UTCJul 11, 12:20 UTC25m
2026-07-11 SEH3AM ATH → JMK Jul 11, 10:40 UTCJul 11, 11:05 UTC25m
2026-07-11 SEH3TH - Jul 11, 08:50 UTCJul 11, 09:35 UTC45m
2026-07-11 SEH2ZT - Jul 11, 07:15 UTCJul 11, 08:05 UTC50m
2026-07-11 SEH2VS - Jul 11, 05:31 UTCJul 11, 06:15 UTC45m
2026-07-11 SEH1LE - Jul 11, 04:10 UTCJul 11, 04:45 UTC35m
2026-07-10 SEH433 - Jul 10, 20:35 UTCJul 10, 21:05 UTC30m
2026-07-10 SEH432 - Jul 10, 19:30 UTCJul 10, 19:55 UTC25m
2026-07-10 SEH7LA EFL → ATH Jul 10, 17:50 UTCJul 10, 18:40 UTC50m
2026-07-10 SEH6EL ATH → EFL Jul 10, 15:55 UTCJul 10, 16:55 UTC1h 0m
2026-07-10 SEH407 - Jul 10, 14:25 UTCJul 10, 14:50 UTC25m
2026-07-10 SEH406 - Jul 10, 13:20 UTCJul 10, 13:50 UTC30m
2026-07-10 SEH4TR - Jul 10, 11:50 UTCJul 10, 12:15 UTC25m
2026-07-10 SEH4JT - Jul 10, 10:15 UTCJul 10, 10:45 UTC30m
2026-07-10 SEH2TR - Jul 10, 08:45 UTCJul 10, 09:25 UTC40m
2026-07-10 SEH2JT - Jul 10, 07:15 UTCJul 10, 07:45 UTC30m
2026-07-10 SEH435 - Jul 10, 05:25 UTCJul 10, 05:55 UTC30m
2026-07-10 SEH434 - Jul 10, 04:25 UTCJul 10, 04:45 UTC20m
2026-07-09 SEH6CA - Jul 9, 19:50 UTCJul 9, 20:35 UTC45m

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

Mode-S 46D276 frequently asked

What is Mode-S code 46D276?
46D276 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-TSV.
Where is Mode-S 46D276 registered?
Mode-S code 46D276 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46D276 broadcasting right now?
Yes. Mode-S 46D276 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46D276, octal 21551166, decimal 4,641,398.
What flights does 46D276 operate?
Mode-S 46D276 has broadcast 20 distinct callsigns, including SEH6JT, SEH474, SEH2DT, SEH1XD, SEH6MT.