sensors Mode-S transponder

ACF1EC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N933ML · BOMBARDIER BD-700 Global 5000/5500 · operated by TVPX AIRCRAFT SOLUTIONS INC TRUSTEE

Hex
ACF1EC
Octal
53170754
Decimal
11,334,124
Country
US
Tail
N933ML
Type
GL5T
Broadcasting now · callsign MVJ93 · 43,000 ft
Flights observed
34
Distinct callsigns
2
Country
US
Last broadcast
30m ago

Current position

ACF1EC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ACF1EC 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 2 distinct

Callsign Airline Flights Last seen
MVJ93 - 32 2026-06-02
N933ML - 2 2026-05-31

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-06-02 MVJ93 - Jun 2, 20:50 UTCJun 2, 21:00 UTC10m
2026-06-02 MVJ93 IAD → TPA Jun 2, 17:25 UTCJun 2, 19:10 UTC1h 45m
2026-06-01 MVJ93 - Jun 1, 17:25 UTCJun 1, 21:50 UTC4h 25m
2026-06-01 MVJ93 OAK → APC Jun 1, 15:25 UTCJun 1, 15:40 UTC15m
2026-05-31 N933ML - May 31, 14:10 UTCMay 31, 20:25 UTC6h 15m
2026-05-30 N933ML - May 30, 17:50 UTCMay 31, 17:00 UTC23h 10m
2026-05-28 MVJ93 - May 28, 22:50 UTCMay 29, 03:40 UTC4h 50m
2026-05-28 MVJ93 VNY → NUQ May 28, 20:55 UTCMay 28, 21:45 UTC50m
2026-05-10 MVJ93 OAK → VNY May 10, 19:05 UTCMay 10, 20:00 UTC55m
2026-05-09 MVJ93 - May 9, 21:05 UTCMay 10, 02:50 UTC5h 45m
2026-05-09 MVJ93 - May 9, 12:50 UTCMay 9, 20:20 UTC7h 30m
2026-05-09 MVJ93 - May 9, 10:30 UTCMay 9, 10:55 UTC25m
2026-05-04 MVJ93 - May 4, 09:35 UTCMay 4, 10:10 UTC35m
2026-05-04 MVJ93 BGR → VCE May 4, 00:55 UTCMay 4, 08:00 UTC7h 5m
2026-05-03 MVJ93 OAK → BGR May 3, 18:50 UTCMay 3, 23:55 UTC5h 5m
2026-05-02 MVJ93 BUR → OAK May 2, 21:10 UTCMay 2, 21:55 UTC45m
2026-04-30 MVJ93 - Apr 30, 20:00 UTCApr 30, 20:30 UTC30m
2026-04-30 MVJ93 - Apr 30, 14:10 UTCApr 30, 19:00 UTC4h 50m
2026-04-26 MVJ93 - Apr 26, 16:10 UTCApr 26, 20:35 UTC4h 25m
2026-04-24 MVJ93 - Apr 24, 17:50 UTCApr 24, 18:20 UTC30m
2026-04-24 MVJ93 - Apr 24, 11:00 UTCApr 24, 16:10 UTC5h 10m
2026-04-24 MVJ93 - Apr 24, 08:45 UTCApr 24, 09:10 UTC25m
2026-04-23 MVJ93 - Apr 23, 02:35 UTCApr 23, 02:50 UTC15m
2026-04-22 MVJ93 - Apr 22, 20:25 UTCApr 23, 01:00 UTC4h 35m
2026-04-22 MVJ93 HWD → VNY Apr 22, 00:25 UTCApr 22, 01:20 UTC55m
2026-04-20 MVJ93 - Apr 20, 20:55 UTCApr 21, 00:25 UTC3h 30m
2026-04-20 MVJ93 - Apr 20, 14:40 UTCApr 20, 17:40 UTC3h 0m
2026-04-20 MVJ93 OAK → HWD Apr 20, 00:35 UTCApr 20, 01:15 UTC40m
2026-04-19 MVJ93 BUR → OAK Apr 19, 05:25 UTCApr 19, 06:15 UTC50m
2026-04-18 MVJ93 OAK → BUR Apr 18, 16:25 UTCApr 18, 17:15 UTC50m
2026-04-18 MVJ93 VNY → OAK Apr 18, 02:00 UTCApr 18, 02:50 UTC50m
2026-04-16 MVJ93 - Apr 16, 01:10 UTCApr 16, 03:04 UTC1h 55m
2026-04-15 MVJ93 - Apr 15, 23:10 UTCApr 16, 01:05 UTC1h 55m
2026-04-15 MVJ93 - Apr 15, 22:05 UTCApr 15, 23:00 UTC55m

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 N933ML page for operator, model, and routing details .

Mode-S ACF1EC frequently asked

What is Mode-S code ACF1EC?
ACF1EC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N933ML.
Where is Mode-S ACF1EC registered?
Mode-S code ACF1EC 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 ACF1EC broadcasting right now?
Yes. Mode-S ACF1EC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF1EC, octal 53170754, decimal 11,334,124.
What flights does ACF1EC operate?
Mode-S ACF1EC has broadcast 2 distinct callsigns, including MVJ93, N933ML.