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sensors Mode-S transponder

452087

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-BHM · AIRBUS A-320

Hex
452087
Octal
21220207
Decimal
4,530,311
Country
BG
Tail
LZ-BHM
Type
A320
Broadcasting now · callsign UBD423 · 34,000 ft
Flights observed
210
Distinct callsigns
20
Country
BG
Last broadcast
Jul 26, 21:15 UTC

Current position

452087 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 452087 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
UBD115 United Airways 25 2026-07-24
UBD438 United Airways 23 2026-07-23
UBD437 United Airways 16 2026-07-22
UBD482 United Airways 15 2026-07-22
UBD431 United Airways 15 2026-07-26
UBD432 United Airways 12 2026-07-21
UBD116 United Airways 12 2026-07-24
UBD496 - 11 2026-07-01
UBD495 - 11 2026-06-24
UBD442 - 11 2026-07-16
UBD435 - 11 2026-07-06
UBD427 United Airways 7 2026-07-26
UBD762 - 5 2026-07-02
UBD761 United Airways 5 2026-06-04
UBD446 United Airways 5 2026-07-20
UBD441 - 5 2026-07-15
UBD481 - 4 2026-07-07
UBD463 - 4 2026-07-18
UBD445 United Airways 3 2026-07-20
UBD436 - 2 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UBD431 EBL → CPH Jul 26, 10:45 UTCJul 26, 21:15 UTC10h 30m
2026-07-26 UBD427 EBL → FRA Jul 26, 05:50 UTCJul 26, 08:45 UTC2h 56m
2026-07-25 UBD427 EBL → FRA Jul 25, 11:50 UTCJul 26, 08:45 UTC20h 56m
2026-07-25 UBD427 EBL → FRA Jul 25, 09:50 UTCJul 26, 08:45 UTC22h 56m
2026-07-24 UBD116 LGW → EBL Jul 24, 18:25 UTCJul 25, 08:05 UTC13h 40m
2026-07-24 UBD115 RJK → LGW Jul 24, 14:35 UTCJul 24, 16:30 UTC1h 55m
2026-07-24 UBD115 RJK → LGW Jul 24, 10:45 UTCJul 24, 12:55 UTC2h 10m
2026-07-23 UBD115 RJK → LGW Jul 23, 11:50 UTCJul 24, 11:45 UTC23h 55m
2026-07-23 UBD438 DUS → EBL Jul 23, 09:40 UTCJul 23, 12:50 UTC3h 10m
2026-07-22 UBD437 EBL → DUS Jul 22, 19:15 UTCJul 23, 08:05 UTC12h 50m
2026-07-22 UBD482 STR → EBL Jul 22, 11:10 UTCJul 22, 17:50 UTC6h 40m
2026-07-21 UBD432 CPH → EBL Jul 21, 23:05 UTCJul 22, 01:35 UTC2h 30m
2026-07-21 UBD431 EBL → CPH Jul 21, 10:35 UTCJul 21, 20:55 UTC10h 20m
2026-07-20 UBD437 EBL → DUS Jul 20, 20:35 UTCJul 21, 08:15 UTC11h 40m
2026-07-20 UBD446 BER → EBL Jul 20, 11:35 UTCJul 20, 18:55 UTC7h 20m
2026-07-20 UBD445 EBL → BER Jul 20, 00:45 UTCJul 20, 10:10 UTC9h 25m
2026-07-19 UBD438 DUS → EBL Jul 19, 09:55 UTCJul 19, 23:15 UTC13h 20m
2026-07-18 UBD437 - Jul 18, 18:15 UTCJul 19, 07:35 UTC13h 20m
2026-07-18 UBD463 - Jul 18, 16:45 UTCJul 18, 17:05 UTC20m
2026-07-18 UBD438 - Jul 18, 09:30 UTCJul 18, 12:10 UTC2h 40m
2026-07-17 UBD116 LGW → EBL Jul 17, 18:19 UTCJul 18, 07:45 UTC13h 26m
2026-07-17 UBD115 RJK → LGW Jul 17, 14:39 UTCJul 17, 16:34 UTC1h 55m
2026-07-16 UBD115 RJK → LGW Jul 16, 18:29 UTCJul 17, 11:55 UTC17h 25m
2026-07-16 UBD442 - Jul 16, 09:30 UTCJul 16, 16:55 UTC7h 25m
2026-07-15 UBD441 - Jul 15, 11:50 UTCJul 16, 07:05 UTC19h 15m
2026-07-15 UBD438 DUS → MUC Jul 15, 09:55 UTCJul 16, 07:05 UTC21h 10m
2026-07-15 UBD437 - Jul 15, 00:05 UTCJul 15, 08:15 UTC8h 10m
2026-07-14 UBD431 - Jul 14, 19:40 UTCJul 14, 20:40 UTC1h 0m
2026-07-14 UBD438 - Jul 14, 10:20 UTCJul 14, 19:35 UTC9h 15m
2026-07-13 UBD437 - Jul 13, 19:55 UTCJul 14, 07:25 UTC11h 30m
2026-07-13 UBD446 - Jul 13, 09:55 UTCJul 13, 17:20 UTC7h 25m
2026-07-12 UBD432 - Jul 12, 22:00 UTCJul 13, 00:35 UTC2h 35m
2026-07-12 UBD431 FRA → CPH Jul 12, 11:01 UTCJul 12, 20:40 UTC9h 40m
2026-07-11 UBD427 - Jul 11, 19:15 UTCJul 12, 08:25 UTC13h 10m
2026-07-11 UBD463 - Jul 11, 17:40 UTCJul 11, 18:00 UTC20m
2026-07-11 UBD482 - Jul 11, 10:20 UTCJul 11, 13:10 UTC2h 50m
2026-07-10 UBD116 - Jul 10, 18:50 UTCJul 10, 21:50 UTC3h 0m
2026-07-10 UBD115 - Jul 10, 14:00 UTCJul 10, 16:00 UTC2h 0m
2026-07-09 UBD115 - Jul 9, 18:25 UTCJul 10, 11:35 UTC17h 10m
2026-07-09 UBD442 - Jul 9, 09:20 UTCJul 9, 16:45 UTC7h 25m
2026-07-08 UBD441 HAJ → MUC Jul 8, 21:10 UTCJul 9, 07:30 UTC10h 20m
2026-07-08 UBD482 - Jul 8, 09:25 UTCJul 8, 19:45 UTC10h 20m
2026-07-07 UBD481 - Jul 7, 22:25 UTCJul 8, 07:45 UTC9h 20m
2026-07-07 UBD431 DUS → CPH Jul 7, 09:50 UTCJul 7, 20:55 UTC11h 5m
2026-07-06 UBD436 CGN → DUS Jul 6, 21:20 UTCJul 7, 07:45 UTC10h 25m
2026-07-06 UBD435 - Jul 6, 16:45 UTCJul 6, 19:55 UTC3h 10m
2026-07-05 UBD435 - Jul 5, 23:50 UTCJul 6, 19:55 UTC20h 5m
2026-07-05 UBD435 CPH → CGN Jul 5, 22:15 UTCJul 6, 19:55 UTC21h 40m
2026-07-05 UBD431 - Jul 5, 10:40 UTCJul 5, 20:50 UTC10h 10m
2026-07-04 UBD432 CPH → FRA Jul 4, 22:15 UTCJul 5, 08:45 UTC10h 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 LZ-BHM page for operator, model, and routing details .

Mode-S 452087 frequently asked

What is Mode-S code 452087?
452087 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-BHM.
Where is Mode-S 452087 registered?
Mode-S code 452087 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452087 broadcasting right now?
Yes. Mode-S 452087 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452087, octal 21220207, decimal 4,530,311.
What flights does 452087 operate?
Mode-S 452087 has broadcast 20 distinct callsigns, including UBD115, UBD438, UBD437, UBD482, UBD431.