Apparatus

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sensors Mode-S transponder

AC049E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N87353 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
AC049E
Octal
53002236
Decimal
11,273,374
Country
US
Tail
N87353
Type
E75L
No current signal · last broadcast 3h ago
Flights observed
264
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AC049E.

Country allocation

The ICAO 24-bit address AC049E 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
ASH4030 Mesa Airlines 6 2026-05-15
ASH3985 Mesa Airlines 6 2026-06-13
ASH6288 - 5 2026-06-20
ASH6199 Mesa Airlines 5 2026-06-20
ASH6154 Mesa Airlines 5 2026-05-25
ASH6127 Mesa Airlines 5 2026-05-15
ASH3999 Mesa Airlines 5 2026-05-20
ASH3236 Mesa Airlines 5 2026-06-09
ASH6372 Mesa Airlines 4 2026-06-20
ASH6334 Mesa Airlines 4 2026-06-11
ASH6289 Mesa Airlines 4 2026-06-21
ASH6268 Mesa Airlines 4 2026-06-20
ASH6267 - 4 2026-06-20
ASH6146 Mesa Airlines 4 2026-06-10
ASH3996 Mesa Airlines 4 2026-06-12
ASH6338 - 3 2026-06-18
ASH6308 Mesa Airlines 3 2026-05-18
ASH6270 Mesa Airlines 3 2026-06-17
ASH6245 Mesa Airlines 3 2026-05-29
ASH6189 Mesa Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-21 ASH6289 IAH → SAT Jun 21, 13:04 UTCJun 21, 15:00 UTC1h 56m
2026-06-20 ASH6288 - Jun 20, 23:14 UTCJun 21, 00:29 UTC1h 15m
2026-06-20 ASH6268 PWM → IAD Jun 20, 19:49 UTCJun 20, 21:14 UTC1h 25m
2026-06-20 ASH6267 - Jun 20, 17:04 UTCJun 20, 18:19 UTC1h 15m
2026-06-20 ASH6199 LGA → IAH Jun 20, 11:44 UTCJun 20, 13:09 UTC1h 25m
2026-06-20 ASH6199 LGA → IAH Jun 20, 11:13 UTCJun 20, 13:11 UTC1h 58m
2026-06-20 ASH6372 IAH → BJX Jun 20, 01:05 UTCJun 20, 02:19 UTC1h 15m
2026-06-20 ASH6372 IAH → BJX Jun 20, 01:10 UTCJun 20, 02:44 UTC1h 34m
2026-06-19 ASH3992 - Jun 19, 20:19 UTCJun 19, 21:59 UTC1h 40m
2026-06-19 ASH4079 - Jun 19, 17:29 UTCJun 19, 19:14 UTC1h 45m
2026-06-18 ASH6289 IAH → SAT Jun 18, 22:10 UTCJun 19, 14:54 UTC16h 44m
2026-06-18 ASH4061 - Jun 18, 19:30 UTCJun 18, 20:35 UTC1h 5m
2026-06-18 ASH6338 - Jun 18, 17:05 UTCJun 18, 18:00 UTC55m
2026-06-18 ASH4028 ELP → IAH Jun 18, 13:50 UTCJun 18, 15:25 UTC1h 35m
2026-06-18 ASH6187 IAD → CVG Jun 18, 01:50 UTCJun 18, 03:20 UTC1h 30m
2026-06-17 ASH4013 - Jun 17, 22:05 UTCJun 17, 23:15 UTC1h 10m
2026-06-17 ASH6270 IAH → MSY Jun 17, 19:50 UTCJun 17, 20:55 UTC1h 5m
2026-06-17 ASH4065 BDL → IAD Jun 17, 15:50 UTCJun 17, 18:20 UTC2h 30m
2026-06-17 ASH6271 IAD → BDL Jun 17, 12:45 UTCJun 17, 14:50 UTC2h 5m
2026-06-17 ASH6271 IAD → BDL Jun 17, 12:38 UTCJun 17, 14:52 UTC2h 14m
2026-06-17 ASH4026 - Jun 17, 10:20 UTCJun 17, 10:55 UTC35m
2026-06-17 ASH6128 - Jun 17, 03:10 UTCJun 17, 03:50 UTC40m
2026-06-17 ASH4017 MAF → IAH Jun 17, 00:45 UTCJun 17, 01:50 UTC1h 5m
2026-06-16 ASH6233 MAF → IAH Jun 16, 21:50 UTCJun 16, 22:55 UTC1h 5m
2026-06-16 ASH6268 PWM → IAD Jun 16, 18:45 UTCJun 16, 19:50 UTC1h 6m
2026-06-16 ASH6267 BOS → IAD Jun 16, 16:10 UTCJun 16, 17:15 UTC1h 5m
2026-06-16 ASH6199 LGA → IAH Jun 16, 11:45 UTCJun 16, 13:04 UTC1h 20m
2026-06-16 ASH6372 IAH → BJX Jun 16, 00:05 UTCJun 16, 01:15 UTC1h 10m
2026-06-16 ASH6372 IAH → BJX Jun 16, 00:02 UTCJun 16, 01:44 UTC1h 42m
2026-06-15 ASH6319 PXM → IAH Jun 15, 19:55 UTCJun 15, 21:55 UTC2h 0m
2026-06-15 ASH6318 IAH → CVG Jun 15, 15:40 UTCJun 15, 17:50 UTC2h 10m
2026-06-15 ASH6318 IAH → CVG Jun 15, 15:35 UTCJun 15, 18:05 UTC2h 30m
2026-06-15 ASH3984 - Jun 15, 12:39 UTCJun 15, 14:10 UTC1h 30m
2026-06-15 ASH3984 TUL → IAH Jun 15, 12:20 UTCJun 15, 14:14 UTC1h 54m
2026-06-15 ASH6269 LGA → IAH Jun 15, 02:24 UTCJun 15, 03:30 UTC1h 5m
2026-06-14 ASH4069 IAH → MSY Jun 14, 21:50 UTCJun 15, 00:10 UTC2h 19m
2026-06-14 ASH6200 SDF → IAH Jun 14, 17:55 UTCJun 14, 20:05 UTC2h 10m
2026-06-14 ASH3994 CHS → IAH Jun 14, 14:05 UTCJun 14, 15:45 UTC1h 40m
2026-06-13 ASH3983 DTW → IAD Jun 13, 22:15 UTCJun 13, 23:45 UTC1h 30m
2026-06-13 ASH6215 IAH → MKE Jun 13, 19:35 UTCJun 13, 20:50 UTC1h 15m
2026-06-13 ASH6205 PWM → IAD Jun 13, 15:30 UTCJun 13, 16:45 UTC1h 15m
2026-06-13 ASH6205 PWM → IAD Jun 13, 15:30 UTCJun 13, 17:32 UTC2h 2m
2026-06-13 ASH6220 - Jun 13, 11:10 UTCJun 13, 13:05 UTC1h 55m
2026-06-13 ASH6111 IAH → LGA Jun 13, 02:05 UTCJun 13, 04:00 UTC1h 54m
2026-06-13 ASH3985 IAD → ATL Jun 13, 00:20 UTCJun 13, 01:00 UTC40m
2026-06-12 ASH4026 IAH → DFW Jun 12, 22:15 UTCJun 12, 23:00 UTC45m
2026-06-12 ASH6296 RDU → IAH Jun 12, 17:00 UTCJun 12, 19:25 UTC2h 25m
2026-06-12 ASH6148 LGA → IAD Jun 12, 13:25 UTCJun 12, 15:45 UTC2h 20m
2026-06-12 ASH4031 DFW → IAH Jun 12, 11:20 UTCJun 12, 11:55 UTC35m
2026-06-12 ASH6128 LGA → IAD Jun 12, 03:10 UTCJun 12, 03:35 UTC25m

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 N87353 page for operator, model, and routing details .

Mode-S AC049E frequently asked

What is Mode-S code AC049E?
AC049E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N87353.
Where is Mode-S AC049E registered?
Mode-S code AC049E 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 AC049E broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC049E, octal 53002236, decimal 11,273,374.
What flights does AC049E operate?
Mode-S AC049E has broadcast 20 distinct callsigns, including ASH4030, ASH3985, ASH6288, ASH6199, ASH6154.