Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

0D0A21

ICAO 24-bit transponder address · allocated to Mexico

Currently assigned to XA-VLZ · AIRBUS A-321

Hex
0D0A21
Octal
03205041
Decimal
854,561
Country
MX
Tail
XA-VLZ
Type
A321
No current signal · last broadcast Jul 26, 17:15 UTC
Flights observed
379
Distinct callsigns
20
Country
MX
Last broadcast
Jul 26, 17:15 UTC

Last known position

Most recent position reported by Mode-S 0D0A21.

Country allocation

The ICAO 24-bit address 0D0A21 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 20 distinct

Callsign Airline Flights Last seen
VOI411 - 9 2026-07-19
VOI410 Volaris 9 2026-07-19
VOI283 Volaris 8 2026-07-19
VOI187 - 8 2026-06-29
VOI302 - 7 2026-07-19
VOI781 - 6 2026-07-01
VOI780 - 6 2026-07-01
VOI771 - 6 2026-07-17
VOI3297 - 6 2026-07-14
VOI3193 - 6 2026-07-03
VOI303 - 6 2026-07-19
VOI282 Volaris 6 2026-05-31
VOI103 - 6 2026-07-16
VOI3282 - 5 2026-07-15
VOI3104 - 5 2026-07-04
VOI3102 - 5 2026-07-03
VOI281 Volaris 5 2026-07-18
VOI263 Volaris 5 2026-06-04
VOI184 Volaris 5 2026-07-21
VOI1760 - 5 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VOI1883 PHX → GDL Jul 26, 16:35 UTCJul 26, 17:15 UTC40m
2026-07-26 VOI1863 ONT → GDL Jul 26, 04:40 UTCJul 26, 14:30 UTC9h 51m
2026-07-25 VOI1821 SJC → GDL Jul 25, 18:40 UTCJul 26, 02:25 UTC7h 45m
2026-07-25 VOI1820 GDL → SJC Jul 25, 14:50 UTCJul 25, 16:45 UTC1h 55m
2026-07-24 VOI1820 GDL → SJC Jul 24, 20:30 UTCJul 25, 16:45 UTC20h 15m
2026-07-24 VOI1742 GDL → LAS Jul 24, 11:00 UTCJul 24, 17:50 UTC6h 50m
2026-07-24 VOI3105 SJD → TIJ Jul 24, 00:00 UTCJul 24, 04:20 UTC4h 20m
2026-07-23 VOI3191 MZT → TIJ Jul 23, 17:40 UTCJul 23, 22:45 UTC5h 5m
2026-07-23 VOI1833 FAT → GDL Jul 23, 08:20 UTCJul 23, 15:50 UTC7h 30m
2026-07-22 VOI1821 SJC → GDL Jul 22, 18:35 UTCJul 23, 05:45 UTC11h 10m
2026-07-22 VOI1820 GDL → SJC Jul 22, 04:00 UTCJul 22, 16:25 UTC12h 25m
2026-07-21 VOI1775 OAK → GDL Jul 21, 20:30 UTCJul 22, 02:45 UTC6h 15m
2026-07-21 VOI1774 TIJ → OAK Jul 21, 09:00 UTCJul 21, 18:25 UTC9h 25m
2026-07-21 VOI184 MEX → TIJ Jul 21, 02:20 UTCJul 21, 05:15 UTC2h 55m
2026-07-20 VOI226 MEX → MID Jul 20, 20:00 UTCJul 21, 00:25 UTC4h 25m
2026-07-20 VOI101 CUN → MEX Jul 20, 16:00 UTCJul 20, 17:50 UTC1h 50m
2026-07-20 VOI100 - Jul 20, 13:00 UTCJul 20, 14:45 UTC1h 45m
2026-07-20 VOI5263 TGZ → MEX Jul 20, 03:05 UTCJul 20, 06:15 UTC3h 10m
2026-07-19 VOI283 PVR → MEX Jul 19, 22:20 UTCJul 20, 01:50 UTC3h 30m
2026-07-19 VOI303 - Jul 19, 20:40 UTCJul 19, 20:55 UTC15m
2026-07-19 VOI302 - Jul 19, 15:20 UTCJul 19, 15:35 UTC15m
2026-07-19 VOI411 - Jul 19, 13:50 UTCJul 19, 14:00 UTC10m
2026-07-19 VOI410 TIJ → CUL Jul 19, 03:00 UTCJul 19, 13:05 UTC10h 5m
2026-07-18 VOI283 PVR → MEX Jul 18, 22:35 UTCJul 19, 01:45 UTC3h 10m
2026-07-18 VOI281 PVR → MEX Jul 18, 17:20 UTCJul 18, 20:55 UTC3h 35m
2026-07-18 VOI481 - Jul 18, 11:55 UTCJul 18, 15:55 UTC4h 0m
2026-07-18 VOI731 IAH → MEX Jul 18, 02:35 UTCJul 18, 04:20 UTC1h 46m
2026-07-17 VOI730 MEX → IAH Jul 17, 22:35 UTCJul 18, 00:25 UTC1h 50m
2026-07-17 VOI281 - Jul 17, 20:40 UTCJul 17, 21:05 UTC25m
2026-07-17 VOI280 - Jul 17, 17:50 UTCJul 17, 18:00 UTC10m
2026-07-17 VOI241 - Jul 17, 15:55 UTCJul 17, 16:10 UTC15m
2026-07-17 VOI241 - Jul 17, 14:55 UTCJul 17, 15:20 UTC25m
2026-07-17 VOI240 - Jul 17, 12:40 UTCJul 17, 13:55 UTC1h 15m
2026-07-17 VOI771 - Jul 17, 10:30 UTCJul 17, 10:35 UTC5m
2026-07-17 VOI771 - Jul 17, 06:45 UTCJul 17, 08:45 UTC2h 0m
2026-07-17 VOI770 - Jul 17, 00:45 UTCJul 17, 04:35 UTC3h 50m
2026-07-16 VOI103 CUN → MEX Jul 16, 20:35 UTCJul 16, 22:30 UTC1h 55m
2026-07-16 VOI102 MEX → CUN Jul 16, 17:14 UTCJul 16, 19:05 UTC1h 50m
2026-07-16 VOI461 - Jul 16, 15:00 UTCJul 16, 15:49 UTC50m
2026-07-16 VOI460 - Jul 16, 12:25 UTCJul 16, 13:15 UTC50m
2026-07-16 VOI185 - Jul 16, 09:50 UTCJul 16, 09:55 UTC5m
2026-07-16 VOI185 - Jul 16, 06:55 UTCJul 16, 08:05 UTC1h 10m
2026-07-16 VOI5010 - Jul 16, 01:20 UTCJul 16, 05:35 UTC4h 15m
2026-07-15 VOI1015 - Jul 15, 17:40 UTCJul 15, 23:55 UTC6h 15m
2026-07-15 VOI3282 - Jul 15, 03:05 UTCJul 15, 06:55 UTC3h 50m
2026-07-14 VOI1007 - Jul 14, 18:55 UTCJul 15, 02:00 UTC7h 4m
2026-07-14 VOI3200 - Jul 14, 09:35 UTCJul 14, 16:00 UTC6h 25m
2026-07-14 VOI3297 - Jul 14, 05:05 UTCJul 14, 08:00 UTC2h 55m
2026-07-14 VOI3296 - Jul 14, 00:35 UTCJul 14, 01:45 UTC1h 10m
2026-07-13 VOI3005 - Jul 13, 18:55 UTCJul 13, 23:25 UTC4h 30m

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-VLZ page for operator, model, and routing details .

Mode-S 0D0A21 frequently asked

What is Mode-S code 0D0A21?
0D0A21 is an ICAO 24-bit transponder address. Allocated to Mexico. Assigned to XA-VLZ.
Where is Mode-S 0D0A21 registered?
Mode-S code 0D0A21 is allocated to Mexico (MX). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0D0A21 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0D0A21, octal 03205041, decimal 854,561.
What flights does 0D0A21 operate?
Mode-S 0D0A21 has broadcast 20 distinct callsigns, including VOI411, VOI410, VOI283, VOI187, VOI302.