sensors Mode-S transponder

4520CE

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-FBK · AIRBUS A-320

Hex
4520CE
Octal
21220316
Decimal
4,530,382
Country
BG
Tail
LZ-FBK
Type
A320
Broadcasting now · callsign JAF5PW · 36,025 ft
Flights observed
9
Distinct callsigns
4
Country
BG
Last broadcast
1d ago

Current position

4520CE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4520CE falls within the block assigned to Bulgaria (BG) by ICAO Annex 10, Volume III. Every aircraft registered in Bulgaria 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 4 distinct

Callsign Airline Flights Last seen
JAF1TA - 3 2026-04-13
JAF9XT Jetairfly 2 2026-04-13
JAF5PW - 2 2026-04-13
JAF4KN - 2 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 JAF9XT ETZ → CMN Apr 13, 19:50 UTCApr 13, 20:40 UTC50m
2026-04-13 JAF9XT ETZ → CMN Apr 13, 18:10 UTCApr 13, 20:10 UTC2h 0m
2026-04-13 JAF1TA - Apr 13, 16:15 UTCApr 13, 17:00 UTC45m
2026-04-13 JAF1TA - Apr 13, 15:50 UTCApr 13, 17:00 UTC1h 10m
2026-04-13 JAF1TA - Apr 13, 14:00 UTCApr 13, 16:15 UTC2h 15m
2026-04-13 JAF4KN - Apr 13, 09:35 UTCApr 13, 11:45 UTC2h 10m
2026-04-13 JAF5PW - Apr 13, 07:55 UTCApr 13, 08:20 UTC25m
2026-04-13 JAF5PW - Apr 13, 05:35 UTCApr 13, 08:15 UTC2h 40m
2026-04-12 JAF4KN - Apr 12, 17:55 UTCApr 12, 20:15 UTC2h 20m

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 LZ-FBK page for operator, model, and routing details .

Mode-S 4520CE frequently asked

What is Mode-S code 4520CE?
4520CE is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-FBK.
Where is Mode-S 4520CE registered?
Mode-S code 4520CE is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4520CE broadcasting right now?
Yes. Mode-S 4520CE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4520CE, octal 21220316, decimal 4,530,382.
What flights does 4520CE operate?
Mode-S 4520CE has broadcast 4 distinct callsigns, including JAF1TA, JAF9XT, JAF5PW, JAF4KN.