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sensors Mode-S transponder

0D123A

ICAO 24-bit transponder address · allocated to Mexico

Currently assigned to XA-VCF · AIRBUS A-321

Hex
0D123A
Octal
03211072
Decimal
856,634
Country
MX
Tail
XA-VCF
Type
A321
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
399
Distinct callsigns
20
Country
MX
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S 0D123A.

Country allocation

The ICAO 24-bit address 0D123A 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
VIV7429 - 36 2026-07-17
VIV7428 - 26 2026-07-16
VIV7283 VivaAerobus 6 2026-07-25
VIV1380 - 6 2026-06-26
VIV1379 VivaAerobus 6 2026-06-26
VIV1254 - 6 2026-07-12
VIV1253 - 6 2026-07-11
VIV5018 - 5 2026-07-11
VIV3201 VivaAerobus 5 2026-05-28
VIV3200 VivaAerobus 5 2026-05-28
VIV2198 - 5 2026-06-26
VIV1373 - 5 2026-06-26
VIV1069 VivaAerobus 5 2026-05-29
VIV7443 VivaAerobus 4 2026-06-09
VIV7282 VivaAerobus 4 2026-07-25
VIV7064 VivaAerobus 4 2026-05-09
VIV7054 - 4 2026-07-14
VIV2199 - 4 2026-06-25
VIV1374 - 4 2026-06-26
VIV1118 - 4 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VIV9021 VER → MID Jul 26, 20:00 UTCJul 26, 20:35 UTC35m
2026-07-26 VIV4282 MTY → MID Jul 26, 15:00 UTCJul 26, 18:55 UTC3h 55m
2026-07-26 VIV9257 PBC → MID Jul 26, 02:45 UTCJul 26, 13:50 UTC11h 6m
2026-07-26 VIV9256 MID → PBC Jul 26, 00:50 UTCJul 26, 01:40 UTC50m
2026-07-25 VIV9245 TLC → MID Jul 25, 15:05 UTCJul 25, 22:05 UTC7h 0m
2026-07-25 VIV7283 PXM → NLU Jul 25, 05:10 UTCJul 25, 13:40 UTC8h 30m
2026-07-25 VIV7283 PXM → NLU Jul 25, 03:40 UTCJul 25, 04:15 UTC35m
2026-07-25 VIV7282 MID → NLU Jul 25, 01:40 UTCJul 25, 02:10 UTC30m
2026-07-24 VIV6017 NLU → MID Jul 24, 19:20 UTCJul 24, 23:55 UTC4h 35m
2026-07-24 VIV9293 HUX → NLU Jul 24, 17:20 UTCJul 24, 18:00 UTC40m
2026-07-24 VIV9292 NLU → HUX Jul 24, 15:10 UTCJul 24, 15:50 UTC40m
2026-07-24 VIV7283 PXM → NLU Jul 24, 05:40 UTCJul 24, 13:45 UTC8h 5m
2026-07-24 VIV7283 PXM → NLU Jul 24, 03:45 UTCJul 24, 04:30 UTC45m
2026-07-24 VIV7282 MID → NLU Jul 24, 01:40 UTCJul 24, 02:10 UTC30m
2026-07-23 VIV9255 PBC → MID Jul 23, 20:30 UTCJul 24, 00:30 UTC4h 0m
2026-07-23 VIV9245 TLC → MID Jul 23, 15:05 UTCJul 23, 19:20 UTC4h 15m
2026-07-23 VIV7283 PXM → NLU Jul 23, 05:10 UTCJul 23, 13:45 UTC8h 35m
2026-07-23 VIV7283 PXM → NLU Jul 23, 03:00 UTCJul 23, 03:40 UTC40m
2026-07-23 VIV7282 MID → NLU Jul 23, 00:55 UTCJul 23, 01:30 UTC35m
2026-07-22 VIV7282 MID → NLU Jul 22, 19:50 UTCJul 22, 23:40 UTC3h 50m
2026-07-22 VIV4282 MTY → MID Jul 22, 15:05 UTCJul 22, 18:50 UTC3h 45m
2026-07-22 VIV4311 CUU → MTY Jul 22, 04:30 UTCJul 22, 13:15 UTC8h 45m
2026-07-21 VIV603 LAS → MTY Jul 21, 23:50 UTCJul 22, 02:15 UTC2h 25m
2026-07-21 VIV602 MTY → LAS Jul 21, 19:30 UTCJul 21, 22:00 UTC2h 30m
2026-07-21 VIV9402 NLU → MTY Jul 21, 17:00 UTCJul 21, 18:00 UTC1h 0m
2026-07-21 VIV9401 MTY → NLU Jul 21, 14:40 UTCJul 21, 15:35 UTC55m
2026-07-21 VIV4311 CUU → MTY Jul 21, 04:25 UTCJul 21, 13:25 UTC9h 0m
2026-07-21 VIV4229 MXL → MTY Jul 21, 00:30 UTCJul 21, 02:35 UTC2h 5m
2026-07-20 VIV4230 - Jul 20, 20:50 UTCJul 20, 22:55 UTC2h 5m
2026-07-20 VIV4177 - Jul 20, 16:45 UTCJul 20, 19:35 UTC2h 50m
2026-07-20 VIV4001 PBC → MTY Jul 20, 14:25 UTCJul 20, 15:40 UTC1h 15m
2026-07-20 VIV4000 MTY → PBC Jul 20, 12:20 UTCJul 20, 13:30 UTC1h 10m
2026-07-20 VIV1144 MEX → MTY Jul 20, 07:15 UTCJul 20, 08:20 UTC1h 5m
2026-07-20 VIV1143 MTY → MEX Jul 20, 05:50 UTCJul 20, 06:00 UTC10m
2026-07-20 VIV1143 MTY → MEX Jul 20, 04:45 UTCJul 20, 05:15 UTC30m
2026-07-20 VIV4377 CZM → MTY Jul 20, 01:40 UTCJul 20, 03:40 UTC2h 0m
2026-07-19 VIV4376 MTY → CZM Jul 19, 22:45 UTCJul 20, 00:45 UTC2h 0m
2026-07-19 VIV4286 MTY → MID Jul 19, 16:55 UTCJul 19, 21:35 UTC4h 40m
2026-07-19 VIV3191 MTY → GDL Jul 19, 12:10 UTCJul 19, 15:40 UTC3h 30m
2026-07-18 VIV2172 CUN → MTY Jul 18, 23:20 UTCJul 19, 01:20 UTC2h 0m
2026-07-18 VIV2171 MTY → CUN Jul 18, 20:00 UTCJul 18, 21:55 UTC1h 55m
2026-07-18 VIV2176 CUN → MTY Jul 18, 16:20 UTCJul 18, 18:35 UTC2h 15m
2026-07-18 VIV2175 MTY → CUN Jul 18, 12:55 UTCJul 18, 14:50 UTC1h 55m
2026-07-18 VIV617 - Jul 18, 04:20 UTCJul 18, 05:25 UTC1h 5m
2026-07-18 VIV616 MTY → IAH Jul 18, 01:50 UTCJul 18, 02:50 UTC1h 1m
2026-07-17 VIV3204 GDL → MTY Jul 17, 15:10 UTCJul 18, 00:04 UTC8h 55m
2026-07-17 VIV3176 - Jul 17, 13:40 UTCJul 17, 13:55 UTC15m
2026-07-17 VIV3117 TIJ → GDL Jul 17, 02:30 UTCJul 17, 03:39 UTC1h 10m
2026-07-17 VIV7429 - Jul 17, 00:20 UTCJul 17, 01:20 UTC1h 0m
2026-07-16 VIV7429 - Jul 16, 22:25 UTCJul 16, 22:35 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-VCF page for operator, model, and routing details .

Mode-S 0D123A frequently asked

What is Mode-S code 0D123A?
0D123A is an ICAO 24-bit transponder address. Allocated to Mexico. Assigned to XA-VCF.
Where is Mode-S 0D123A registered?
Mode-S code 0D123A is allocated to Mexico (MX). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0D123A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0D123A, octal 03211072, decimal 856,634.
What flights does 0D123A operate?
Mode-S 0D123A has broadcast 20 distinct callsigns, including VIV7429, VIV7428, VIV7283, VIV1380, VIV1379.