Apparatus

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sensors Mode-S transponder

AC03EE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N87302 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
AC03EE
Octal
53001756
Decimal
11,273,198
Country
US
Tail
N87302
Type
E75L
No current signal · last broadcast 11h ago
Flights observed
461
Distinct callsigns
20
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S AC03EE.

Country allocation

The ICAO 24-bit address AC03EE 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
ASH6214 - 9 2026-06-23
ASH6231 - 8 2026-06-30
ASH4057 Mesa Airlines 8 2026-07-04
ASH6246 - 7 2026-07-07
ASH6213 - 7 2026-06-23
ASH4064 - 7 2026-07-05
ASH4015 - 7 2026-07-06
ASH6239 - 6 2026-07-08
ASH6203 - 6 2026-07-08
ASH6190 Mesa Airlines 6 2026-07-05
ASH4066 - 6 2026-06-19
ASH4028 Mesa Airlines 6 2026-06-13
ASH6362 - 5 2026-07-08
ASH6263 Mesa Airlines 5 2026-06-21
ASH6260 Mesa Airlines 5 2026-06-21
ASH6235 - 5 2026-07-06
ASH6206 - 5 2026-07-12
ASH4059 - 5 2026-06-28
ASH4047 - 5 2026-06-17
ASH4022 - 5 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASH4022 - Jul 14, 01:45 UTCJul 14, 03:15 UTC1h 30m
2026-07-14 ASH4022 IAH → BHM Jul 14, 01:53 UTCJul 14, 03:04 UTC1h 11m
2026-07-13 ASH6290 - Jul 13, 23:20 UTCJul 14, 00:45 UTC1h 25m
2026-07-13 ASH6290 XNA → IAH Jul 13, 23:18 UTCJul 14, 00:42 UTC1h 24m
2026-07-13 ASH4062 - Jul 13, 20:35 UTCJul 13, 22:05 UTC1h 30m
2026-07-13 ASH6254 - Jul 13, 16:00 UTCJul 13, 19:05 UTC3h 5m
2026-07-13 ASH6149 - Jul 13, 12:35 UTCJul 13, 14:50 UTC2h 15m
2026-07-13 ASH4017 - Jul 13, 00:25 UTCJul 13, 01:35 UTC1h 10m
2026-07-12 ASH6233 - Jul 12, 21:55 UTCJul 12, 23:10 UTC1h 15m
2026-07-12 ASH6281 - Jul 12, 19:20 UTCJul 12, 19:55 UTC35m
2026-07-12 ASH6281 SAT → IAH Jul 12, 19:29 UTCJul 12, 19:54 UTC25m
2026-07-12 ASH6206 - Jul 12, 17:25 UTCJul 12, 18:01 UTC35m
2026-07-12 ASH4060 - Jul 12, 14:35 UTCJul 12, 15:20 UTC45m
2026-07-12 ASH6157 - Jul 12, 12:45 UTCJul 12, 13:25 UTC40m
2026-07-12 ASH4026 - Jul 12, 10:20 UTCJul 12, 10:50 UTC30m
2026-07-12 ASH4026 CRP → IAH Jul 12, 10:26 UTCJul 12, 11:10 UTC44m
2026-07-12 ASH6138 - Jul 12, 01:00 UTCJul 12, 01:40 UTC40m
2026-07-11 ASH6305 - Jul 11, 19:40 UTCJul 11, 23:20 UTC3h 40m
2026-07-11 ASH4071 - Jul 11, 15:05 UTCJul 11, 18:20 UTC3h 15m
2026-07-11 ASH6266 - Jul 11, 10:45 UTCJul 11, 12:35 UTC1h 50m
2026-07-11 ASH4052 - Jul 11, 02:05 UTCJul 11, 03:50 UTC1h 45m
2026-07-10 ASH4046 - Jul 10, 23:05 UTCJul 11, 00:50 UTC1h 45m
2026-07-10 ASH6110 - Jul 10, 20:30 UTCJul 10, 21:35 UTC1h 5m
2026-07-10 ASH6184 - Jul 10, 15:10 UTCJul 10, 15:50 UTC40m
2026-07-10 ASH6184 PIT → IAD Jul 10, 15:11 UTCJul 10, 15:46 UTC35m
2026-07-10 ASH6119 LGA → IAH Jul 10, 14:21 UTCJul 10, 14:33 UTC12m
2026-07-10 ASH6119 LGA → IAH Jul 10, 13:45 UTCJul 10, 14:05 UTC20m
2026-07-10 ASH6159 - Jul 10, 00:25 UTCJul 10, 01:30 UTC1h 5m
2026-07-09 ASH6262 IAD → PVD Jul 9, 18:10 UTCJul 9, 19:15 UTC1h 5m
2026-07-09 ASH6366 - Jul 9, 14:00 UTCJul 9, 15:25 UTC1h 25m
2026-07-08 ASH3981 IAD → SAV Jul 8, 22:13 UTCJul 8, 23:09 UTC56m
2026-07-08 ASH3981 IAD → SAV Jul 8, 21:55 UTCJul 8, 23:10 UTC1h 15m
2026-07-08 ASH6203 - Jul 8, 19:10 UTCJul 8, 20:05 UTC55m
2026-07-08 ASH6239 IAD → CLT Jul 8, 17:03 UTCJul 8, 17:52 UTC49m
2026-07-08 ASH6239 - Jul 8, 17:00 UTCJul 8, 17:30 UTC30m
2026-07-08 ASH3993 - Jul 8, 14:35 UTCJul 8, 15:45 UTC1h 10m
2026-07-08 ASH4054 IAD → BDL Jul 8, 12:45 UTCJul 8, 13:40 UTC55m
2026-07-08 ASH3997 - Jul 8, 09:40 UTCJul 8, 10:55 UTC1h 15m
2026-07-08 ASH4021 IAD → IND Jul 8, 02:50 UTCJul 8, 04:10 UTC1h 20m
2026-07-08 ASH6362 - Jul 8, 00:25 UTCJul 8, 01:30 UTC1h 5m
2026-07-07 ASH6246 - Jul 7, 22:20 UTCJul 7, 23:25 UTC1h 5m
2026-07-07 ASH4018 - Jul 7, 19:15 UTCJul 7, 20:20 UTC1h 5m
2026-07-07 ASH6240 - Jul 7, 16:55 UTCJul 7, 18:00 UTC1h 5m
2026-07-07 ASH6184 PIT → IAD Jul 7, 14:40 UTCJul 7, 15:25 UTC45m
2026-07-07 ASH6184 PIT → IAD Jul 7, 14:46 UTCJul 7, 15:26 UTC40m
2026-07-07 ASH6119 LGA → IAH Jul 7, 12:50 UTCJul 7, 13:25 UTC35m
2026-07-07 ASH6279 - Jul 7, 10:20 UTCJul 7, 11:15 UTC55m
2026-07-07 ASH6279 CLT → IAD Jul 7, 10:20 UTCJul 7, 11:13 UTC53m
2026-07-07 ASH6234 - Jul 7, 04:50 UTCJul 7, 05:50 UTC1h 0m
2026-07-06 ASH4078 - Jul 6, 23:50 UTCJul 7, 00:55 UTC1h 5m

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 N87302 page for operator, model, and routing details .

Mode-S AC03EE frequently asked

What is Mode-S code AC03EE?
AC03EE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N87302.
Where is Mode-S AC03EE registered?
Mode-S code AC03EE 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 AC03EE broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC03EE, octal 53001756, decimal 11,273,198.
What flights does AC03EE operate?
Mode-S AC03EE has broadcast 20 distinct callsigns, including ASH6214, ASH6231, ASH4057, ASH6246, ASH6213.