Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4520D0

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-FBI · AIRBUS A-320

Hex
4520D0
Octal
21220320
Decimal
4,530,384
Country
BG
Tail
LZ-FBI
Type
A320
Broadcasting now · callsign LZB8793 · 20,350 ft
Flights observed
92
Distinct callsigns
20
Country
BG
Last broadcast
10h ago

Current position

4520D0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4520D0 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 20 distinct

Callsign Airline Flights Last seen
LZB8528 - 6 2026-05-24
LZB7714 Bulgaria Air 5 2026-05-28
LZB8844 - 4 2026-05-29
LZB8843 - 4 2026-05-29
LZB8527 - 3 2026-05-17
LZB7713 Bulgaria Air 3 2026-05-28
LZB319 - 3 2026-04-13
BVL8449 - 3 2026-05-06
LZB972 Bulgaria Air 2 2026-05-18
LZB8626 Bulgaria Air 2 2026-04-17
LZB8625 Bulgaria Air 2 2026-04-17
LZB808 Bulgaria Air 2 2026-05-15
LZB807 Bulgaria Air 2 2026-05-15
LZB8056 Bulgaria Air 2 2026-05-22
LZB8055 Bulgaria Air 2 2026-05-22
LZB7606 Bulgaria Air 2 2026-05-01
LZB7605 Bulgaria Air 2 2026-05-01
LZB6822 Bulgaria Air 2 2026-05-16
LZB6821 - 2 2026-04-18
LZB6816 Bulgaria Air 2 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 LZB7060 DBB → SOF May 29, 17:00 UTCMay 29, 18:50 UTC1h 50m
2026-05-29 LZB7059 SOF → DBB May 29, 14:05 UTCMay 29, 16:00 UTC1h 55m
2026-05-29 LZB8844 - May 29, 06:05 UTCMay 29, 07:25 UTC1h 20m
2026-05-29 LZB8843 - May 29, 03:35 UTCMay 29, 04:50 UTC1h 15m
2026-05-28 LZB7714 NBE → SOF May 28, 12:25 UTCMay 28, 12:50 UTC25m
2026-05-28 LZB7714 NBE → SOF May 28, 09:30 UTCMay 28, 11:30 UTC2h 0m
2026-05-28 LZB7713 SOF → NBE May 28, 06:15 UTCMay 28, 07:50 UTC1h 35m
2026-05-27 LZB7714 NBE → SOF May 27, 13:30 UTCMay 27, 15:00 UTC1h 30m
2026-05-27 LZB7713 SOF → NBE May 27, 10:20 UTCMay 27, 11:45 UTC1h 25m
2026-05-24 LZB8844 - May 24, 13:50 UTCMay 24, 15:15 UTC1h 25m
2026-05-24 LZB8843 - May 24, 11:15 UTCMay 24, 12:25 UTC1h 10m
2026-05-24 LZB8528 - May 24, 03:15 UTCMay 24, 09:40 UTC6h 25m
2026-05-23 LZB6816 DJE → SOF May 23, 18:55 UTCMay 23, 20:45 UTC1h 50m
2026-05-23 LZB6815 SOF → DJE May 23, 15:35 UTCMay 23, 17:15 UTC1h 40m
2026-05-23 LZB8754 BJV → HRG May 23, 08:05 UTCMay 23, 13:50 UTC5h 45m
2026-05-23 LZB8753 SOF → BJV May 23, 06:00 UTCMay 23, 07:00 UTC1h 0m
2026-05-22 LZB8056 NBE → SOF May 22, 12:35 UTCMay 22, 14:20 UTC1h 45m
2026-05-22 LZB8055 SOF → NBE May 22, 09:30 UTCMay 22, 11:00 UTC1h 30m
2026-05-22 LZB8844 - May 22, 06:45 UTCMay 22, 08:10 UTC1h 25m
2026-05-22 LZB8843 - May 22, 03:50 UTCMay 22, 05:25 UTC1h 35m
2026-05-20 LZB8056 NBE → SOF May 20, 15:00 UTCMay 20, 16:30 UTC1h 30m
2026-05-20 LZB8055 SOF → NBE May 20, 10:25 UTCMay 20, 12:00 UTC1h 35m
2026-05-20 LZB6814 CAI → SOF May 20, 06:50 UTCMay 20, 08:45 UTC1h 55m
2026-05-20 LZB6813 SOF → CAI May 20, 03:20 UTCMay 20, 05:20 UTC2h 1m
2026-05-18 LZB472 MAD → SOF May 18, 13:10 UTCMay 18, 15:50 UTC2h 40m
2026-05-18 LZB471 SOF → MAD May 18, 08:01 UTCMay 18, 11:00 UTC3h 0m
2026-05-18 LZB972 VAR → SOF May 18, 05:35 UTCMay 18, 06:05 UTC30m
2026-05-18 LZB975 SOF → VAR May 18, 03:50 UTCMay 18, 04:30 UTC40m
2026-05-17 LZB302 PRG → SOF May 17, 15:40 UTCMay 17, 17:05 UTC1h 25m
2026-05-17 LZB301 SOF → PRG May 17, 12:50 UTCMay 17, 14:15 UTC1h 25m
2026-05-17 LZB8528 - May 17, 07:15 UTCMay 17, 09:40 UTC2h 25m
2026-05-17 LZB8527 - May 17, 03:30 UTCMay 17, 05:25 UTC1h 55m
2026-05-16 LZB6816 DJE → SOF May 16, 19:20 UTCMay 16, 20:35 UTC1h 15m
2026-05-16 LZB6815 SOF → DJE May 16, 11:11 UTCMay 16, 18:05 UTC6h 55m
2026-05-16 LZB6822 HRG → VAR May 16, 03:30 UTCMay 16, 10:11 UTC6h 41m
2026-05-15 LZB808 ATH → SOF May 15, 15:00 UTCMay 15, 15:50 UTC50m
2026-05-15 LZB807 SOF → ATH May 15, 13:10 UTCMay 15, 14:00 UTC50m
2026-05-15 LZB8844 - May 15, 05:50 UTCMay 15, 07:05 UTC1h 15m
2026-05-15 LZB8843 - May 15, 03:45 UTCMay 15, 04:55 UTC1h 10m
2026-05-13 LZB450 FCO → SOF May 13, 10:40 UTCMay 13, 11:50 UTC1h 10m
2026-05-13 LZB449 SOF → FCO May 13, 07:55 UTCMay 13, 09:15 UTC1h 20m
2026-05-13 LZB972 VAR → SOF May 13, 05:55 UTCMay 13, 06:15 UTC20m
2026-05-13 LZB971 SOF → VAR May 13, 04:25 UTCMay 13, 05:00 UTC35m
2026-05-10 LZB8528 - May 10, 07:19 UTCMay 10, 09:40 UTC2h 20m
2026-05-10 LZB8527 - May 10, 03:14 UTCMay 10, 05:14 UTC2h 0m
2026-05-09 LZB8716 SPX → SOF May 9, 17:05 UTCMay 9, 19:10 UTC2h 5m
2026-05-09 LZB8715 SOF → SPX May 9, 14:00 UTCMay 9, 15:40 UTC1h 40m
2026-05-09 LZB8790 HRG → SOF May 9, 05:50 UTCMay 9, 12:20 UTC6h 30m
2026-05-09 LZB8789 SOF → SPX May 9, 04:25 UTCMay 9, 04:45 UTC20m
2026-05-08 LZB8528 - May 8, 14:05 UTCMay 8, 20:05 UTC6h 0m

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

Mode-S 4520D0 frequently asked

What is Mode-S code 4520D0?
4520D0 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-FBI.
Where is Mode-S 4520D0 registered?
Mode-S code 4520D0 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4520D0 broadcasting right now?
Yes. Mode-S 4520D0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4520D0, octal 21220320, decimal 4,530,384.
What flights does 4520D0 operate?
Mode-S 4520D0 has broadcast 20 distinct callsigns, including LZB8528, LZB7714, LZB8844, LZB8843, LZB8527.