Apparatus

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sensors Mode-S transponder

A6CE39

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N538AV · AIRBUS A-320 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A6CE39
Octal
51547071
Decimal
10,931,769
Country
US
Tail
N538AV
Type
A320
Broadcasting now · callsign GUG701 · 5,125 ft
Flights observed
663
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:05 UTC

Current position

A6CE39 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A6CE39 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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
GUG743 Aviateca 95 2026-07-26
GUG705 Aviateca 78 2026-07-26
GUG704 Aviateca 78 2026-07-26
GUG703 Aviateca 74 2026-07-26
GUG701 Aviateca 74 2026-07-26
GUG702 Aviateca 72 2026-07-26
GUG700 Aviateca 72 2026-07-26
GUG742 Aviateca 62 2026-07-26
TAI579 Avianca El Salvador 16 2026-07-21
TAI578 Avianca El Salvador 15 2026-07-22
TAI370 - 4 2026-07-01
TAI369 - 4 2026-06-28
TAI589 Avianca El Salvador 3 2026-07-22
TAI588 Avianca El Salvador 3 2026-07-21
TAI573 - 2 2026-07-07
TAI383 Avianca El Salvador 2 2026-04-20
TAI382 Avianca El Salvador 2 2026-04-21
AVA165 Avianca - Aerovias Nacionales de Colombia, S.A. 2 2026-04-21
TAI572 - 1 2026-07-07
GUG744 Aviateca 1 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GUG742 BOG → GUA Jul 26, 20:10 UTCJul 26, 22:05 UTC1h 55m
2026-07-26 GUG743 GUA → BOG Jul 26, 15:40 UTCJul 26, 18:10 UTC2h 30m
2026-07-26 GUG705 FRS → GUA Jul 26, 14:00 UTCJul 26, 14:25 UTC25m
2026-07-26 GUG704 GUA → FRS Jul 26, 12:10 UTCJul 26, 12:30 UTC20m
2026-07-26 GUG703 FRS → GUA Jul 26, 04:55 UTCJul 26, 05:15 UTC20m
2026-07-26 GUG702 GUA → FRS Jul 26, 03:25 UTCJul 26, 03:40 UTC15m
2026-07-26 GUG701 FRS → GUA Jul 26, 01:35 UTCJul 26, 02:00 UTC25m
2026-07-26 GUG700 GUA → FRS Jul 26, 00:00 UTCJul 26, 00:15 UTC15m
2026-07-25 GUG742 BOG → GUA Jul 25, 20:05 UTCJul 25, 22:45 UTC2h 40m
2026-07-25 GUG743 GUA → BOG Jul 25, 15:35 UTCJul 25, 18:10 UTC2h 35m
2026-07-25 GUG705 FRS → GUA Jul 25, 13:55 UTCJul 25, 14:25 UTC30m
2026-07-25 GUG704 GUA → FRS Jul 25, 12:10 UTCJul 25, 12:25 UTC15m
2026-07-25 GUG703 FRS → GUA Jul 25, 06:00 UTCJul 25, 06:30 UTC30m
2026-07-25 GUG702 GUA → FRS Jul 25, 04:35 UTCJul 25, 04:45 UTC10m
2026-07-25 GUG701 FRS → GUA Jul 25, 02:50 UTCJul 25, 03:35 UTC45m
2026-07-25 GUG700 GUA → FRS Jul 25, 01:15 UTCJul 25, 01:30 UTC15m
2026-07-24 GUG742 BOG → GUA Jul 24, 21:10 UTCJul 25, 00:00 UTC2h 50m
2026-07-24 GUG743 GUA → BOG Jul 24, 15:40 UTCJul 24, 18:20 UTC2h 40m
2026-07-24 GUG705 FRS → GUA Jul 24, 14:00 UTCJul 24, 14:25 UTC25m
2026-07-24 GUG704 GUA → FRS Jul 24, 12:15 UTCJul 24, 12:30 UTC15m
2026-07-24 GUG703 FRS → GUA Jul 24, 06:45 UTCJul 24, 07:10 UTC25m
2026-07-24 GUG702 GUA → FRS Jul 24, 05:15 UTCJul 24, 05:30 UTC15m
2026-07-24 GUG701 FRS → GUA Jul 24, 03:55 UTCJul 24, 04:20 UTC25m
2026-07-24 GUG700 GUA → FRS Jul 24, 02:15 UTCJul 24, 02:25 UTC10m
2026-07-23 GUG742 BOG → GUA Jul 23, 22:20 UTCJul 24, 01:05 UTC2h 45m
2026-07-23 GUG743 GUA → BOG Jul 23, 15:30 UTCJul 23, 18:15 UTC2h 45m
2026-07-23 GUG705 FRS → GUA Jul 23, 13:55 UTCJul 23, 14:20 UTC25m
2026-07-23 GUG704 - Jul 23, 12:05 UTCJul 23, 12:20 UTC15m
2026-07-23 GUG703 FRS → GUA Jul 23, 05:45 UTCJul 23, 06:10 UTC25m
2026-07-23 GUG702 GUA → FRS Jul 23, 04:10 UTCJul 23, 04:20 UTC10m
2026-07-23 GUG701 FRS → GUA Jul 23, 02:00 UTCJul 23, 02:25 UTC25m
2026-07-23 GUG700 GUA → FRS Jul 23, 00:10 UTCJul 23, 00:25 UTC15m
2026-07-22 GUG742 BOG → GUA Jul 22, 20:05 UTCJul 22, 22:55 UTC2h 50m
2026-07-22 GUG743 GUA → BOG Jul 22, 15:35 UTCJul 22, 18:20 UTC2h 45m
2026-07-22 GUG705 FRS → GUA Jul 22, 14:00 UTCJul 22, 14:25 UTC25m
2026-07-22 GUG704 - Jul 22, 12:10 UTCJul 22, 12:25 UTC15m
2026-07-22 TAI578 SAL → GUA Jul 22, 04:35 UTCJul 22, 05:00 UTC25m
2026-07-22 TAI589 ORD → SAL Jul 22, 02:20 UTCJul 22, 02:40 UTC20m
2026-07-21 TAI588 SAL → GUA Jul 21, 23:50 UTCJul 22, 00:10 UTC20m
2026-07-21 TAI579 GUA → SAL Jul 21, 11:30 UTCJul 21, 11:45 UTC15m
2026-07-21 GUG703 FRS → GUA Jul 21, 04:55 UTCJul 21, 05:20 UTC25m
2026-07-21 GUG702 GUA → FRS Jul 21, 03:15 UTCJul 21, 03:25 UTC10m
2026-07-21 GUG701 FRS → GUA Jul 21, 01:45 UTCJul 21, 02:05 UTC20m
2026-07-21 GUG700 GUA → FRS Jul 21, 00:05 UTCJul 21, 00:15 UTC10m
2026-07-20 GUG742 BOG → GUA Jul 20, 20:10 UTCJul 20, 22:55 UTC2h 45m
2026-07-20 GUG743 GUA → BOG Jul 20, 15:50 UTCJul 20, 18:40 UTC2h 50m
2026-07-20 GUG705 FRS → GUA Jul 20, 14:00 UTCJul 20, 14:20 UTC20m
2026-07-20 GUG704 - Jul 20, 12:05 UTCJul 20, 12:15 UTC10m
2026-07-20 GUG703 FRS → GUA Jul 20, 05:15 UTCJul 20, 05:40 UTC25m
2026-07-20 GUG702 GUA → FRS Jul 20, 03:30 UTCJul 20, 03:45 UTC15m

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 N538AV page for operator, model, and routing details .

Mode-S A6CE39 frequently asked

What is Mode-S code A6CE39?
A6CE39 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N538AV.
Where is Mode-S A6CE39 registered?
Mode-S code A6CE39 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A6CE39 broadcasting right now?
Yes. Mode-S A6CE39 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CE39, octal 51547071, decimal 10,931,769.
What flights does A6CE39 operate?
Mode-S A6CE39 has broadcast 20 distinct callsigns, including GUG743, GUG705, GUG704, GUG703, GUG701.