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sensors Mode-S transponder

ABDCDA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N86334 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
ABDCDA
Octal
52756332
Decimal
11,263,194
Country
US
Tail
N86334
Type
E75L
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
467
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S ABDCDA.

Country allocation

The ICAO 24-bit address ABDCDA 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 20 distinct

Callsign Airline Flights Last seen
ASH6251 Mesa Airlines 8 2026-07-25
ASH6338 - 6 2026-07-16
ASH6236 Mesa Airlines 6 2026-06-11
ASH6137 Mesa Airlines 6 2026-07-25
ASH4049 Mesa Airlines 6 2026-07-19
ASH3994 - 6 2026-07-17
ASH6355 Mesa Airlines 5 2026-07-24
ASH6331 Mesa Airlines 5 2026-04-18
ASH6255 - 5 2026-07-05
ASH6232 Mesa Airlines 5 2026-06-11
ASH4079 - 5 2026-07-15
ASH4047 - 5 2026-06-28
ASH4042 - 5 2026-07-12
ASH4040 - 5 2026-07-12
ASH4033 Mesa Airlines 5 2026-07-19
ASH3995 Mesa Airlines 5 2026-05-30
ASH3993 Mesa Airlines 5 2026-07-22
ASH3988 Mesa Airlines 5 2026-06-11
ASH6327 Mesa Airlines 4 2026-05-10
ASH6286 Mesa Airlines 4 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASH4027 CLT → IAD Jul 26, 18:45 UTCJul 26, 20:40 UTC1h 55m
2026-07-26 ASH6147 IAH → CLE Jul 26, 14:40 UTCJul 26, 16:45 UTC2h 5m
2026-07-26 ASH6283 IAH → ATL Jul 26, 11:30 UTCJul 26, 13:05 UTC1h 35m
2026-07-26 ASH6187 IAD → CVG Jul 26, 02:00 UTCJul 26, 03:35 UTC1h 35m
2026-07-25 ASH4001 IAH → BTR Jul 25, 23:55 UTCJul 26, 00:45 UTC50m
2026-07-25 ASH6322 IAH → MAF Jul 25, 21:20 UTCJul 25, 22:10 UTC50m
2026-07-25 ASH6251 DTW → IAH Jul 25, 15:00 UTCJul 25, 17:20 UTC2h 20m
2026-07-25 ASH6251 DTW → IAH Jul 25, 15:11 UTCJul 25, 17:13 UTC2h 2m
2026-07-25 ASH6137 IAD → PVD Jul 25, 12:50 UTCJul 25, 13:55 UTC1h 5m
2026-07-24 ASH6165 SAV → IAD Jul 24, 23:25 UTCJul 25, 00:50 UTC1h 25m
2026-07-24 ASH6355 IAH → SAV Jul 24, 20:05 UTCJul 24, 22:05 UTC2h 0m
2026-07-24 ASH4039 PHL → IAH Jul 24, 15:55 UTCJul 24, 17:40 UTC1h 45m
2026-07-24 ASH6146 IAH → SDF Jul 24, 12:40 UTCJul 24, 14:30 UTC1h 50m
2026-07-24 ASH4028 ELP → IAH Jul 24, 10:20 UTCJul 24, 10:30 UTC10m
2026-07-24 ASH4028 ELP → IAH Jul 24, 10:22 UTCJul 24, 11:09 UTC47m
2026-07-24 ASH6168 IAH → LGA Jul 24, 01:15 UTCJul 24, 02:05 UTC50m
2026-07-23 ASH4003 IAH → MEM Jul 23, 14:25 UTCJul 23, 15:50 UTC1h 25m
2026-07-22 ASH6167 IAH → LGA Jul 22, 23:15 UTCJul 23, 00:25 UTC1h 10m
2026-07-22 ASH4046 CLE → IAH Jul 22, 20:20 UTCJul 22, 22:00 UTC1h 40m
2026-07-22 ASH6110 HRL → IAH Jul 22, 18:20 UTCJul 22, 19:30 UTC1h 10m
2026-07-22 ASH3993 IAH → ELP Jul 22, 16:25 UTCJul 22, 17:30 UTC1h 5m
2026-07-22 ASH4054 IAH → SAT Jul 22, 14:26 UTCJul 22, 15:28 UTC1h 2m
2026-07-22 ASH4054 IAH → SAT Jul 22, 14:40 UTCJul 22, 15:30 UTC50m
2026-07-22 ASH6165 SAV → IAD Jul 22, 12:05 UTCJul 22, 13:20 UTC1h 15m
2026-07-21 ASH6355 IAH → SAV Jul 21, 20:05 UTCJul 21, 22:05 UTC2h 0m
2026-07-21 ASH6125 IAH → LGA Jul 21, 17:10 UTCJul 21, 18:05 UTC55m
2026-07-21 ASH6125 IAH → LGA Jul 21, 17:24 UTCJul 21, 18:02 UTC38m
2026-07-21 ASH4070 - Jul 21, 15:10 UTCJul 21, 16:00 UTC50m
2026-07-21 ASH3984 ELP → IAH Jul 21, 12:05 UTCJul 21, 13:25 UTC1h 20m
2026-07-21 ASH6269 - Jul 21, 01:30 UTCJul 21, 02:35 UTC1h 5m
2026-07-20 ASH6253 PHX → IAH Jul 20, 22:10 UTCJul 20, 23:10 UTC1h 0m
2026-07-20 ASH6189 PHX → IAH Jul 20, 19:55 UTCJul 20, 21:00 UTC1h 5m
2026-07-20 ASH4039 PHL → IAH Jul 20, 15:55 UTCJul 20, 17:40 UTC1h 45m
2026-07-20 ASH6146 - Jul 20, 12:45 UTCJul 20, 14:35 UTC1h 50m
2026-07-20 ASH4026 - Jul 20, 10:25 UTCJul 20, 11:00 UTC35m
2026-07-20 ASH6128 - Jul 20, 03:15 UTCJul 20, 03:50 UTC35m
2026-07-20 ASH6128 IAH → CRP Jul 20, 03:22 UTCJul 20, 03:48 UTC26m
2026-07-19 ASH6153 - Jul 19, 16:05 UTCJul 19, 20:50 UTC4h 45m
2026-07-19 ASH4049 IAH → HRL Jul 19, 11:40 UTCJul 19, 13:30 UTC1h 50m
2026-07-19 ASH4033 LIT → IAH Jul 19, 01:30 UTCJul 19, 03:20 UTC1h 50m
2026-07-18 ASH6305 LBB → IAH Jul 18, 19:55 UTCJul 18, 23:30 UTC3h 35m
2026-07-18 ASH4071 MCI → IAH Jul 18, 15:10 UTCJul 18, 18:35 UTC3h 25m
2026-07-18 ASH4049 IAH → HRL Jul 18, 11:10 UTCJul 18, 13:00 UTC1h 50m
2026-07-18 ASH4033 LIT → IAH Jul 18, 01:05 UTCJul 18, 03:00 UTC1h 56m
2026-07-17 ASH6182 - Jul 17, 17:40 UTCJul 17, 22:45 UTC5h 5m
2026-07-17 ASH3994 - Jul 17, 14:30 UTCJul 17, 16:00 UTC1h 30m
2026-07-16 ASH3983 DTW → IAD Jul 16, 22:49 UTCJul 17, 00:14 UTC1h 25m
2026-07-16 ASH4061 - Jul 16, 20:35 UTCJul 16, 21:45 UTC1h 10m
2026-07-16 ASH6338 - Jul 16, 17:10 UTCJul 16, 18:15 UTC1h 5m
2026-07-16 ASH4034 - Jul 16, 14:10 UTCJul 16, 14:29 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 N86334 page for operator, model, and routing details .

Mode-S ABDCDA frequently asked

What is Mode-S code ABDCDA?
ABDCDA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N86334.
Where is Mode-S ABDCDA registered?
Mode-S code ABDCDA 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 ABDCDA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDCDA, octal 52756332, decimal 11,263,194.
What flights does ABDCDA operate?
Mode-S ABDCDA has broadcast 20 distinct callsigns, including ASH6251, ASH6338, ASH6236, ASH6137, ASH4049.