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sensors Mode-S transponder

AC5378

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N89342 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
AC5378
Octal
53051570
Decimal
11,293,560
Country
US
Tail
N89342
Type
E75L
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
582
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S AC5378.

Country allocation

The ICAO 24-bit address AC5378 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
ASH6208 Mesa Airlines 8 2026-07-17
ASH6145 Mesa Airlines 8 2026-07-17
ASH6135 Mesa Airlines 8 2026-07-23
ASH3985 - 8 2026-06-16
ASH6237 - 7 2026-07-15
ASH6146 - 7 2026-07-05
ASH4065 Mesa Airlines 7 2026-07-22
ASH6372 Mesa Airlines 6 2026-07-20
ASH6288 - 6 2026-07-09
ASH6271 Mesa Airlines 6 2026-07-22
ASH6268 Mesa Airlines 6 2026-07-21
ASH6238 Mesa Airlines 6 2026-07-22
ASH6224 - 6 2026-07-09
ASH6199 - 6 2026-07-21
ASH6154 Mesa Airlines 6 2026-07-20
ASH6136 Mesa Airlines 6 2026-07-23
ASH6116 - 6 2026-06-29
ASH6115 Mesa Airlines 6 2026-06-03
ASH4070 Mesa Airlines 6 2026-05-29
ASH4024 Mesa Airlines 6 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASH6310 SDF → IAH Jul 26, 19:55 UTCJul 26, 21:40 UTC1h 45m
2026-07-26 ASH3980 ABQ → IAH Jul 26, 17:05 UTCJul 26, 18:20 UTC1h 15m
2026-07-26 ASH6184 PVD → IAD Jul 26, 14:40 UTCJul 26, 15:20 UTC40m
2026-07-26 ASH6119 LGA → IAH Jul 26, 12:55 UTCJul 26, 13:25 UTC30m
2026-07-25 ASH3982 BTR → IAH Jul 25, 19:30 UTCJul 25, 22:09 UTC2h 39m
2026-07-25 ASH3982 BTR → IAH Jul 25, 19:25 UTCJul 25, 22:20 UTC2h 55m
2026-07-25 ASH3996 IAH → MCI Jul 25, 12:55 UTCJul 25, 15:50 UTC2h 55m
2026-07-24 ASH4078 IAH → IND Jul 24, 23:45 UTCJul 25, 00:55 UTC1h 10m
2026-07-24 ASH6112 CLT → IAH Jul 24, 21:35 UTCJul 24, 22:35 UTC1h 0m
2026-07-24 ASH6190 YOW → IAD Jul 24, 18:40 UTCJul 24, 19:45 UTC1h 5m
2026-07-24 ASH6190 YOW → IAD Jul 24, 18:51 UTCJul 24, 19:43 UTC52m
2026-07-24 ASH4064 IAH → AUS Jul 24, 15:00 UTCJul 24, 17:25 UTC2h 25m
2026-07-24 ASH4049 IAH → HRL Jul 24, 11:25 UTCJul 24, 13:15 UTC1h 50m
2026-07-24 ASH4033 LIT → IAH Jul 24, 01:20 UTCJul 24, 03:15 UTC1h 55m
2026-07-23 ASH6136 IAD → LGA Jul 23, 21:35 UTCJul 23, 22:50 UTC1h 15m
2026-07-23 ASH6136 IAD → LGA Jul 23, 20:56 UTCJul 23, 22:46 UTC1h 50m
2026-07-23 ASH6135 MSP → IAH Jul 23, 17:15 UTCJul 23, 18:00 UTC45m
2026-07-23 ASH6135 MSP → IAH Jul 23, 17:16 UTCJul 23, 19:04 UTC1h 48m
2026-07-22 ASH6238 AGU → IAH Jul 22, 23:45 UTCJul 23, 14:20 UTC14h 35m
2026-07-22 ASH6232 LGA → IAH Jul 22, 21:25 UTCJul 22, 22:00 UTC35m
2026-07-22 ASH6177 CVG → IAD Jul 22, 19:40 UTCJul 22, 20:15 UTC35m
2026-07-22 ASH4065 BDL → IAD Jul 22, 16:05 UTCJul 22, 18:15 UTC2h 10m
2026-07-22 ASH4065 BDL → IAD Jul 22, 15:58 UTCJul 22, 18:14 UTC2h 16m
2026-07-22 ASH6271 IAD → BDL Jul 22, 12:35 UTCJul 22, 14:45 UTC2h 10m
2026-07-22 ASH6130 IAH → ABQ Jul 22, 00:25 UTCJul 22, 01:10 UTC45m
2026-07-21 ASH3989 - Jul 21, 22:00 UTCJul 21, 22:30 UTC30m
2026-07-21 ASH3989 IAH → SAT Jul 21, 21:54 UTCJul 21, 22:31 UTC37m
2026-07-21 ASH6268 PWM → IAD Jul 21, 18:10 UTCJul 21, 19:20 UTC1h 10m
2026-07-21 ASH6268 PWM → IAD Jul 21, 18:03 UTCJul 21, 19:17 UTC1h 14m
2026-07-21 ASH6267 BOS → IAD Jul 21, 15:05 UTCJul 21, 16:05 UTC1h 0m
2026-07-21 ASH6199 - Jul 21, 11:30 UTCJul 21, 12:50 UTC1h 20m
2026-07-20 ASH6372 IAH → BJX Jul 20, 23:45 UTCJul 21, 00:55 UTC1h 10m
2026-07-20 ASH6372 IAH → BJX Jul 20, 23:41 UTCJul 21, 01:24 UTC1h 43m
2026-07-20 ASH6153 - Jul 20, 19:35 UTCJul 20, 20:50 UTC1h 15m
2026-07-20 ASH6153 AGU → IAH Jul 20, 19:08 UTCJul 20, 20:46 UTC1h 38m
2026-07-20 ASH6154 IAH → CLE Jul 20, 16:20 UTCJul 20, 17:30 UTC1h 10m
2026-07-20 ASH6154 IAH → CLE Jul 20, 16:22 UTCJul 20, 18:02 UTC1h 40m
2026-07-20 ASH6163 - Jul 20, 13:25 UTCJul 20, 14:45 UTC1h 20m
2026-07-20 ASH6163 ELP → IAH Jul 20, 13:14 UTCJul 20, 14:45 UTC1h 31m
2026-07-20 ASH4009 - Jul 20, 01:25 UTCJul 20, 02:45 UTC1h 20m
2026-07-20 ASH4009 IAH → ELP Jul 20, 01:15 UTCJul 20, 02:54 UTC1h 39m
2026-07-19 ASH6136 - Jul 19, 17:10 UTCJul 19, 22:35 UTC5h 25m
2026-07-19 ASH4060 CRP → IAH Jul 19, 14:54 UTCJul 19, 15:27 UTC33m
2026-07-19 ASH4060 - Jul 19, 14:35 UTCJul 19, 15:20 UTC45m
2026-07-19 ASH6157 - Jul 19, 12:50 UTCJul 19, 13:30 UTC40m
2026-07-19 ASH4028 - Jul 19, 10:20 UTCJul 19, 11:10 UTC50m
2026-07-18 ASH6168 IAH → LGA Jul 18, 23:45 UTCJul 19, 00:25 UTC40m
2026-07-18 ASH6168 IAH → LGA Jul 18, 23:52 UTCJul 19, 00:37 UTC45m
2026-07-18 ASH6221 ACA → IAH Jul 18, 19:05 UTCJul 18, 21:05 UTC2h 0m
2026-07-18 ASH6221 ACA → IAH Jul 18, 19:03 UTCJul 18, 21:02 UTC1h 59m

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 N89342 page for operator, model, and routing details .

Mode-S AC5378 frequently asked

What is Mode-S code AC5378?
AC5378 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N89342.
Where is Mode-S AC5378 registered?
Mode-S code AC5378 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 AC5378 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5378, octal 53051570, decimal 11,293,560.
What flights does AC5378 operate?
Mode-S AC5378 has broadcast 20 distinct callsigns, including ASH6208, ASH6145, ASH6135, ASH3985, ASH6237.