Apparatus

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sensors Mode-S transponder

452135

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-FSB · AIRBUS A-320

Hex
452135
Octal
21220465
Decimal
4,530,485
Country
BG
Tail
LZ-FSB
Type
A320
No current signal · last broadcast 28d ago
Flights observed
109
Distinct callsigns
20
Country
BG
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S 452135.

Country allocation

The ICAO 24-bit address 452135 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
VOE56DL Volotea 11 2026-07-26
VOE1784 Volotea 11 2026-07-26
VOE7WZ Volotea 5 2026-07-26
VOE53EJ Volotea 5 2026-07-26
VOE1554 Volotea 5 2026-07-25
VOE9FT Volotea 4 2026-07-24
VOE8RC Volotea 4 2026-07-23
VOE7BE Volotea 4 2026-07-25
VOE6KX Volotea 4 2026-07-23
VOE3BF Volotea 4 2026-07-25
VOE2PM Volotea 4 2026-07-24
VOE1UU - 4 2026-07-25
VOE9BA Volotea 3 2026-07-26
VOE7VA Volotea 3 2026-07-24
VOE73NP Volotea 3 2026-07-25
VOE71RQ Volotea 3 2026-07-24
VOE2FC Volotea 3 2026-07-24
VOE1683 Volotea 3 2026-07-25
VOE14WF Volotea 3 2026-07-24
VOE93DP - 2 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VOE83UD PSA → OLB Jul 26, 20:55 UTCJul 26, 21:15 UTC20m
2026-07-26 VOE6AP AHO → ORY Jul 26, 19:15 UTCJul 26, 19:40 UTC25m
2026-07-26 VOE9BA TLS → AJA Jul 26, 17:20 UTCJul 26, 18:10 UTC50m
2026-07-26 VOE7WZ OLB → VRN Jul 26, 15:35 UTCJul 26, 16:20 UTC45m
2026-07-26 VOE53EJ VRN → OLB Jul 26, 13:25 UTCJul 26, 14:30 UTC1h 5m
2026-07-26 VOE56DL ORY → VRN Jul 26, 11:10 UTCJul 26, 12:20 UTC1h 10m
2026-07-26 VOE1664 GOA → ORY Jul 26, 08:50 UTCJul 26, 10:05 UTC1h 15m
2026-07-26 VOE3NG ORY → GOA Jul 26, 06:40 UTCJul 26, 07:45 UTC1h 5m
2026-07-26 VOE1784 VRN → ORY Jul 26, 04:15 UTCJul 26, 05:25 UTC1h 10m
2026-07-25 VOE56DL ORY → VRN Jul 25, 20:05 UTCJul 25, 21:15 UTC1h 10m
2026-07-25 VOE73NP AOI → ORY Jul 25, 17:30 UTCJul 25, 19:05 UTC1h 35m
2026-07-25 VOE1683 ORY → AOI Jul 25, 15:00 UTCJul 25, 16:25 UTC1h 25m
2026-07-25 VOE1784 VRN → ORY Jul 25, 12:40 UTCJul 25, 13:55 UTC1h 15m
2026-07-25 VOE3BF CAG → VRN Jul 25, 10:30 UTCJul 25, 11:30 UTC1h 0m
2026-07-25 VOE7BE VRN → CAG Jul 25, 08:20 UTCJul 25, 09:15 UTC55m
2026-07-25 VOE1UU - Jul 25, 05:30 UTCJul 25, 07:15 UTC1h 45m
2026-07-25 VOE1554 VRN → ZTH Jul 25, 02:35 UTCJul 25, 04:15 UTC1h 40m
2026-07-24 VOE71RQ BCN → VRN Jul 24, 21:30 UTCJul 24, 22:35 UTC1h 5m
2026-07-24 VOE14WF AOI → BCN Jul 24, 18:40 UTCJul 24, 20:15 UTC1h 35m
2026-07-24 VOE2FC BCN → AOI Jul 24, 16:25 UTCJul 24, 17:40 UTC1h 15m
2026-07-24 VOE7VA RAK → NTE Jul 24, 13:45 UTCJul 24, 15:05 UTC1h 20m
2026-07-24 VOE9FT CIY → VRN Jul 24, 11:00 UTCJul 24, 12:30 UTC1h 30m
2026-07-24 VOE2PM VRN → CIY Jul 24, 08:50 UTCJul 24, 10:10 UTC1h 20m
2026-07-24 VOE56DL ORY → VRN Jul 24, 06:45 UTCJul 24, 07:55 UTC1h 10m
2026-07-24 VOE1784 VRN → ORY Jul 24, 04:20 UTCJul 24, 05:30 UTC1h 10m
2026-07-23 VOE6KX CTA → VRN Jul 23, 20:40 UTCJul 23, 22:10 UTC1h 30m
2026-07-23 VOE77BW AOI → CTA Jul 23, 18:30 UTCJul 23, 19:30 UTC1h 0m
2026-07-23 VOE1JR BIA → BOD Jul 23, 16:25 UTCJul 23, 17:30 UTC1h 5m
2026-07-23 VOE8RC VRN → CTA Jul 23, 14:00 UTCJul 23, 15:15 UTC1h 15m
2026-07-23 VOE7WZ OLB → VRN Jul 23, 12:05 UTCJul 23, 12:55 UTC50m
2026-07-23 VOE53EJ VRN → OLB Jul 23, 10:05 UTCJul 23, 10:50 UTC45m
2026-07-23 VOE1UU - Jul 23, 07:00 UTCJul 23, 08:45 UTC1h 45m
2026-07-23 VOE1554 VRN → ZTH Jul 23, 04:30 UTCJul 23, 06:05 UTC1h 35m
2026-07-22 VOE6KX CTA → VRN Jul 22, 16:40 UTCJul 22, 18:05 UTC1h 25m
2026-07-22 VOE8RC VRN → CTA Jul 22, 14:05 UTCJul 22, 15:20 UTC1h 15m
2026-07-22 VOE56DL ORY → VRN Jul 22, 11:55 UTCJul 22, 13:00 UTC1h 5m
2026-07-22 VOE1784 VRN → ORY Jul 22, 04:15 UTCJul 22, 05:25 UTC1h 10m
2026-07-21 VOE3BF CAG → VRN Jul 21, 19:45 UTCJul 21, 20:45 UTC1h 0m
2026-07-21 VOE7BE VRN → CAG Jul 21, 17:40 UTCJul 21, 18:40 UTC1h 0m
2026-07-21 VOE8UA AHO → VRN Jul 21, 15:40 UTCJul 21, 16:40 UTC1h 0m
2026-07-21 VOE4YL VRN → AHO Jul 21, 13:45 UTCJul 21, 14:45 UTC1h 0m
2026-07-21 VOE710 LYS → VRN Jul 21, 07:15 UTCJul 21, 09:05 UTC1h 50m
2026-07-18 VOE1554 VRN → ZTH Jul 18, 02:35 UTCJul 18, 04:15 UTC1h 41m
2026-07-17 VOE71RQ - Jul 17, 21:15 UTCJul 17, 22:15 UTC1h 0m
2026-07-17 VOE14WF AOI → BCN Jul 17, 18:40 UTCJul 17, 20:10 UTC1h 30m
2026-07-17 VOE2FC BCN → AOI Jul 17, 16:24 UTCJul 17, 17:40 UTC1h 15m
2026-07-17 VOE7VA RAK → NTE Jul 17, 13:55 UTCJul 17, 15:15 UTC1h 20m
2026-07-17 VOE9FT CIY → VRN Jul 17, 11:30 UTCJul 17, 12:55 UTC1h 25m
2026-07-17 VOE2PM VRN → CIY Jul 17, 08:59 UTCJul 17, 10:20 UTC1h 20m
2026-07-17 VOE56DL - Jul 17, 06:50 UTCJul 17, 08:00 UTC1h 10m

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

Mode-S 452135 frequently asked

What is Mode-S code 452135?
452135 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-FSB.
Where is Mode-S 452135 registered?
Mode-S code 452135 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452135 broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452135, octal 21220465, decimal 4,530,485.
What flights does 452135 operate?
Mode-S 452135 has broadcast 20 distinct callsigns, including VOE56DL, VOE1784, VOE7WZ, VOE53EJ, VOE1554.