overheadlog, radio and ADS-B
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Aircraft

LZ-GPA

Regular

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Mode S hex
4520FB
Type
Boeing 737-400B734
Manufacturer
Boeing
Serial number
27003
Year built
199234 years old
Operator
GP Aviation (GPX)
Country of registration
BulgariaBulgaria
First contact
11 Jul 2022, 20:11
Last contact
15 Aug 2026, 21:03
Logged visits
1,727

The station's story

Cumulative contact time
255 h
Distinct days
672
Highest captured altitude
35,975 ft
1 corrupted frame(s) excluded from this maximum
Discovery rank
#45,527 of 57,466
Longest contact
2 h 15 min
Contacts on this Mode S address
1,767 contacts on the address, 1,727 under this registration: the address has carried several identities over time.

Same airframe, also seen as

  • 9H-HUEfrom 6 Jul 2016 to 11 Aug 2026 · 200 contacts

These registrations share the same serial number and type according to the reference data. Serial numbers can collide, though: it is a deduction, not a certainty.

Observed callsigns

GPX (1,255 contacts, 2022-2026)

Operator as per the registry of 12 Aug 2026; observed callsigns are the freshest measurement.

Visits

CallsignFirst contactAltitude at end of contact
GPX2IM22 May 202513,075 ft
GPX2MI22 May 202517,375 ft
GPX1LB21 May 202520,050 ft
not transmitted21 May 202516,875 ft
GPX1LB19 May 202519,000 ft
not transmitted19 May 202520,625 ft
GPX70118 May 202526,450 ft
GPX70018 May 2025not transmitted
GPX80318 May 202514,550 ft
not transmitted18 May 202516,175 ft
GPX1NH16 May 202519,325 ft
not transmitted16 May 20258,550 ft
GPX1LB16 May 202520,950 ft
not transmitted16 May 2025not transmitted
GPX2IM15 May 202517,900 ft
not transmitted15 May 20258,875 ft
not transmitted14 May 202521,825 ft
GPX2IM13 May 202516,825 ft
GPX2MI13 May 202516,575 ft
GPX1LB13 May 202523,775 ft
not transmitted13 May 202515,900 ft
GPX70112 May 202532,350 ft
GPX70012 May 2025not transmitted
GPX1LB10 May 202515,450 ft
GPX1NH9 May 202513,650 ft