Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC142E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N878BG · BOEING 787-8 Dreamliner · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AC142E
Octal
53012056
Decimal
11,277,358
Country
US
Tail
N878BG
Type
B788
No current signal · last broadcast 4h ago
Flights observed
221
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AC142E.

Country allocation

The ICAO 24-bit address AC142E 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
AAL71 - 11 2026-07-02
AAL70 - 11 2026-07-01
AAL912 - 10 2026-07-13
AAL115 American Airlines 10 2026-06-30
AAL957 - 8 2026-07-14
AAL755 - 8 2026-06-27
AAL6 - 7 2026-07-01
AAL5 American Airlines 7 2026-06-29
AAL207 American Airlines 7 2026-06-23
AAL715 American Airlines 6 2026-07-03
AAL906 - 5 2026-06-25
AAL741 American Airlines 5 2026-05-19
AAL206 American Airlines 5 2026-06-12
AAL204 - 5 2026-07-09
AAL102 - 5 2026-06-30
AAL986 American Airlines 4 2026-06-15
AAL758 - 4 2026-07-06
AAL754 American Airlines 4 2026-05-18
AAL309 American Airlines 4 2026-06-14
AAL285 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL957 - Jul 14, 03:15 UTCJul 14, 08:05 UTC4h 50m
2026-07-13 AAL912 - Jul 13, 04:10 UTCJul 13, 09:10 UTC5h 0m
2026-07-12 AAL957 - Jul 12, 03:35 UTCJul 12, 08:20 UTC4h 45m
2026-07-11 AAL3306 PHL → MIA Jul 11, 20:45 UTCJul 11, 22:50 UTC2h 5m
2026-07-11 AAL3306 PHL → MIA Jul 11, 20:42 UTCJul 11, 22:51 UTC2h 9m
2026-07-11 AAL97 BUD → PHL Jul 11, 08:45 UTCJul 11, 17:40 UTC8h 55m
2026-07-11 AAL97 BUD → PHL Jul 11, 08:41 UTCJul 11, 17:39 UTC8h 58m
2026-07-10 AAL96 PHL → BUD Jul 10, 21:58 UTCJul 11, 05:44 UTC7h 46m
2026-07-10 AAL96 PHL → BUD Jul 10, 22:00 UTCJul 11, 05:45 UTC7h 45m
2026-07-10 AAL203 - Jul 10, 08:30 UTCJul 10, 16:05 UTC7h 35m
2026-07-10 AAL203 AMS → PHL Jul 10, 08:26 UTCJul 10, 16:01 UTC7h 35m
2026-07-09 AAL204 - Jul 9, 23:10 UTCJul 10, 05:30 UTC6h 20m
2026-07-09 AAL204 PHL → AMS Jul 9, 23:08 UTCJul 10, 05:43 UTC6h 35m
2026-07-09 AAL204 PHL → PHL Jul 9, 22:40 UTCJul 9, 23:05 UTC25m
2026-07-09 AAL781 - Jul 9, 10:50 UTCJul 9, 11:30 UTC40m
2026-07-09 AAL781 NAP → PHL Jul 9, 10:41 UTCJul 9, 19:33 UTC8h 52m
2026-07-08 AAL180 - Jul 8, 23:30 UTCJul 9, 01:30 UTC2h 0m
2026-07-08 AAL180 ORD → NAP Jul 8, 23:28 UTCJul 9, 08:37 UTC9h 9m
2026-07-07 AAL161 - Jul 7, 08:35 UTCJul 7, 12:15 UTC3h 40m
2026-07-07 AAL161 ATH → ORD Jul 7, 08:33 UTCJul 7, 18:56 UTC10h 23m
2026-07-07 AAL161 ATH → ORD Jul 7, 08:33 UTCJul 7, 19:01 UTC10h 28m
2026-07-06 AAL758 PHL → ATH Jul 6, 21:05 UTCJul 7, 05:50 UTC8h 45m
2026-07-06 AAL285 - Jul 6, 08:25 UTCJul 6, 11:30 UTC3h 5m
2026-07-06 AAL285 PRG → PHL Jul 6, 08:24 UTCJul 6, 16:53 UTC8h 29m
2026-07-06 AAL285 PRG → PHL Jul 6, 08:24 UTCJul 6, 17:00 UTC8h 36m
2026-07-05 AAL284 PHL → PRG Jul 5, 22:20 UTCJul 6, 05:25 UTC7h 5m
2026-07-05 AAL285 PRG → PHL Jul 5, 08:35 UTCJul 5, 17:00 UTC8h 25m
2026-07-04 AAL284 PHL → PRG Jul 4, 22:30 UTCJul 5, 05:45 UTC7h 15m
2026-07-04 AAL203 YCL → PHL Jul 4, 14:40 UTCJul 4, 16:25 UTC1h 45m
2026-07-04 AAL203 - Jul 4, 08:40 UTCJul 4, 14:35 UTC5h 55m
2026-07-03 AAL204 - Jul 3, 22:55 UTCJul 3, 23:30 UTC35m
2026-07-03 AAL204 PHL → AMS Jul 3, 22:55 UTCJul 4, 05:20 UTC6h 25m
2026-07-03 AAL715 VCE → PHL Jul 3, 11:45 UTCJul 3, 13:30 UTC1h 45m
2026-07-03 AAL715 VCE → PHL Jul 3, 11:43 UTCJul 3, 20:20 UTC8h 37m
2026-07-03 AAL715 VCE → PHL Jul 3, 11:43 UTCJul 3, 20:24 UTC8h 41m
2026-07-02 AAL130 - Jul 2, 23:25 UTCJul 3, 08:50 UTC9h 25m
2026-07-02 AAL130 DFW → VCE Jul 2, 23:23 UTCJul 3, 08:49 UTC9h 26m
2026-07-02 AAL71 FRA → DFW Jul 2, 09:05 UTCJul 2, 19:15 UTC10h 10m
2026-07-01 AAL70 DFW → FRA Jul 1, 21:10 UTCJul 2, 06:00 UTC8h 50m
2026-07-01 AAL70 DFW → FRA Jul 1, 21:07 UTCJul 2, 06:07 UTC9h 0m
2026-07-01 AAL6 - Jul 1, 03:45 UTCJul 1, 10:25 UTC6h 40m
2026-06-30 AAL115 DFW → HNL Jun 30, 21:50 UTCJun 30, 22:05 UTC15m
2026-06-30 AAL115 DFW → HNL Jun 30, 14:25 UTCJun 30, 17:45 UTC3h 20m
2026-06-30 AAL102 - Jun 30, 04:50 UTCJun 30, 11:35 UTC6h 45m
2026-06-29 AAL5 DFW → HNL Jun 29, 17:05 UTCJun 30, 00:45 UTC7h 40m
2026-06-29 AAL5 DFW → HNL Jun 29, 17:04 UTCJun 30, 00:41 UTC7h 37m
2026-06-28 AAL131 - Jun 28, 10:44 UTCJun 28, 21:14 UTC10h 30m
2026-06-27 AAL714 - Jun 27, 23:45 UTCJun 28, 06:55 UTC7h 10m
2026-06-27 AAL755 - Jun 27, 19:00 UTCJun 27, 20:29 UTC1h 30m
2026-06-27 AAL755 - Jun 27, 13:09 UTCJun 27, 18:54 UTC5h 45m

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 N878BG page for operator, model, and routing details .

Mode-S AC142E frequently asked

What is Mode-S code AC142E?
AC142E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N878BG.
Where is Mode-S AC142E registered?
Mode-S code AC142E 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 AC142E broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC142E, octal 53012056, decimal 11,277,358.
What flights does AC142E operate?
Mode-S AC142E has broadcast 20 distinct callsigns, including AAL71, AAL70, AAL912, AAL115, AAL957.