sensors Mode-S transponder

01023E

ICAO 24-bit transponder address · allocated to Egypt

Currently assigned to SU-BUV · AIRBUS A-320

Hex
01023E
Octal
00201076
Decimal
66,110
Country
EG
Tail
SU-BUV
Type
A320
Broadcasting now · callsign MSC434 · 24,950 ft
Flights observed
5
Distinct callsigns
5
Country
EG
Last broadcast
3d ago

Current position

01023E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 01023E falls within the block assigned to Egypt (EG) by ICAO Annex 10, Volume III. Every aircraft registered in Egypt 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 5 distinct

Callsign Airline Flights Last seen
MSC994 - 1 2026-04-14
MSC811 - 1 2026-04-12
MSC444 - 1 2026-04-15
MSC217 Air Cairo 1 2026-04-15
MSC1044 - 1 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-15 MSC217 CAI → AMM Apr 15, 11:30 UTCApr 15, 11:50 UTC20m
2026-04-15 MSC444 - Apr 15, 05:45 UTCApr 15, 05:55 UTC10m
2026-04-14 MSC1044 - Apr 14, 07:45 UTCApr 14, 07:55 UTC10m
2026-04-14 MSC994 - Apr 14, 05:15 UTCApr 14, 05:45 UTC30m
2026-04-12 MSC811 - Apr 12, 17:30 UTCApr 12, 19:00 UTC1h 30m

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 SU-BUV page for operator, model, and routing details .

Mode-S 01023E frequently asked

What is Mode-S code 01023E?
01023E is an ICAO 24-bit transponder address. Allocated to Egypt. Assigned to SU-BUV.
Where is Mode-S 01023E registered?
Mode-S code 01023E is allocated to Egypt (EG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 01023E broadcasting right now?
Yes. Mode-S 01023E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 01023E, octal 00201076, decimal 66,110.
What flights does 01023E operate?
Mode-S 01023E has broadcast 5 distinct callsigns, including MSC994, MSC811, MSC444, MSC217, MSC1044.