sensors Mode-S transponder

A12E57

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N17513 · EMBRAER ERJ-135 · operated by CORPORATE FLIGHT MANAGEMENT INC

Hex
A12E57
Octal
50227127
Decimal
10,563,159
Country
US
Tail
N17513
Type
E135
Broadcasting now · callsign VTE3388 · 21,000 ft
Flights observed
8
Distinct callsigns
5
Country
US
Last broadcast
1d ago

Current position

A12E57 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A12E57 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 5 distinct

Callsign Airline Flights Last seen
VTE3383 Corporate Flight Management 3 2026-04-13
VTE3388 - 2 2026-04-13
VTE3390 - 1 2026-04-13
VTE3386 - 1 2026-04-13
VTE3385 Corporate Flight Management 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 VTE3385 SOW → PHX Apr 13, 22:40 UTCApr 13, 23:00 UTC20m
2026-04-13 VTE3386 - Apr 13, 21:25 UTCApr 13, 21:40 UTC15m
2026-04-13 VTE3383 SOW → PHX Apr 13, 19:45 UTCApr 13, 19:50 UTC5m
2026-04-13 VTE3383 SOW → PHX Apr 13, 19:25 UTCApr 13, 19:45 UTC20m
2026-04-13 VTE3388 - Apr 13, 05:15 UTCApr 13, 05:35 UTC20m
2026-04-13 VTE3388 - Apr 13, 03:55 UTCApr 13, 04:15 UTC20m
2026-04-13 VTE3390 PHX → PHX Apr 13, 00:55 UTCApr 13, 04:15 UTC3h 20m
2026-04-12 VTE3383 SOW → PHX Apr 12, 17:20 UTCApr 12, 17:40 UTC20m

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 N17513 page for operator, model, and routing details .

Mode-S A12E57 frequently asked

What is Mode-S code A12E57?
A12E57 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N17513.
Where is Mode-S A12E57 registered?
Mode-S code A12E57 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 A12E57 broadcasting right now?
Yes. Mode-S A12E57 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A12E57, octal 50227127, decimal 10,563,159.
What flights does A12E57 operate?
Mode-S A12E57 has broadcast 5 distinct callsigns, including VTE3383, VTE3388, VTE3390, VTE3386, VTE3385.