sensors Mode-S transponder

0D0AC1

ICAO 24-bit transponder address · allocated to Mexico

Currently assigned to XA-AEM · EMBRAER ERJ-190-100

Hex
0D0AC1
Octal
03205301
Decimal
854,721
Country
MX
Tail
XA-AEM
Type
E190
Broadcasting now · callsign SLI1689 · 27,375 ft
Flights observed
9
Distinct callsigns
9
Country
MX
Last broadcast
1d ago

Current position

0D0AC1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 0D0AC1 falls within the block assigned to Mexico (MX) by ICAO Annex 10, Volume III. Every aircraft registered in Mexico 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 9 distinct

Callsign Airline Flights Last seen
SLI2971 - 1 2026-04-13
SLI2970 - 1 2026-04-13
SLI2643 - 1 2026-04-13
SLI2642 - 1 2026-04-13
SLI2525 - 1 2026-04-13
SLI2524 - 1 2026-04-13
SLI2466 - 1 2026-04-13
SLI2462 Aeroméxico Connect 1 2026-04-12
SLI2461 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 SLI2971 NLD → MEX Apr 13, 21:05 UTCApr 13, 22:25 UTC1h 20m
2026-04-13 SLI2970 - Apr 13, 18:30 UTCApr 13, 19:45 UTC1h 15m
2026-04-13 SLI2643 - Apr 13, 16:55 UTCApr 13, 17:05 UTC10m
2026-04-13 SLI2642 - Apr 13, 14:25 UTCApr 13, 14:40 UTC15m
2026-04-13 SLI2461 AZP → MEX Apr 13, 12:30 UTCApr 13, 12:40 UTC10m
2026-04-13 SLI2466 - Apr 13, 05:00 UTCApr 13, 05:15 UTC15m
2026-04-13 SLI2525 - Apr 13, 02:45 UTCApr 13, 03:25 UTC40m
2026-04-13 SLI2524 - Apr 13, 00:45 UTCApr 13, 01:25 UTC40m
2026-04-12 SLI2462 MEX → QRO Apr 12, 19:55 UTCApr 12, 20:05 UTC10m

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 XA-AEM page for operator, model, and routing details .

Mode-S 0D0AC1 frequently asked

What is Mode-S code 0D0AC1?
0D0AC1 is an ICAO 24-bit transponder address. Allocated to Mexico. Assigned to XA-AEM.
Where is Mode-S 0D0AC1 registered?
Mode-S code 0D0AC1 is allocated to Mexico (MX). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0D0AC1 broadcasting right now?
Yes. Mode-S 0D0AC1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0D0AC1, octal 03205301, decimal 854,721.
What flights does 0D0AC1 operate?
Mode-S 0D0AC1 has broadcast 9 distinct callsigns, including SLI2971, SLI2970, SLI2643, SLI2642, SLI2525.