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sensors Mode-S transponder

A897E4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N653AE · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A897E4
Octal
52113744
Decimal
11,048,932
Country
US
Tail
N653AE
Type
E145
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
894
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A897E4.

Country allocation

The ICAO 24-bit address A897E4 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
PDT5825 Piedmont Airlines 13 2026-07-20
PDT5869 - 12 2026-07-13
PDT6113 Piedmont Airlines 10 2026-06-27
PDT6074 - 9 2026-07-13
PDT5941 - 9 2026-07-12
PDT5806 Piedmont Airlines 9 2026-06-04
PDT6128 Piedmont Airlines 8 2026-05-15
PDT6056 - 8 2026-07-01
PDT6046 Piedmont Airlines 8 2026-05-12
PDT6038 Piedmont Airlines 8 2026-07-23
PDT6032 Piedmont Airlines 8 2026-05-03
PDT6024 - 8 2026-07-14
PDT5982 - 8 2026-07-15
PDT5971 - 8 2026-07-12
PDT5920 Piedmont Airlines 8 2026-07-23
PDT6124 - 7 2026-07-09
PDT6114 Piedmont Airlines 7 2026-05-05
PDT6067 - 7 2026-07-18
PDT6028 Piedmont Airlines 7 2026-05-07
PDT6018 Piedmont Airlines 7 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PDT5862 MHT → PHL Jul 26, 21:55 UTCJul 26, 23:00 UTC1h 5m
2026-07-26 PDT5924 MDT → BOS Jul 26, 19:15 UTCJul 26, 20:00 UTC45m
2026-07-26 PDT5924 MDT → BOS Jul 26, 17:35 UTCJul 26, 18:10 UTC35m
2026-07-26 PDT5848 CHO → CLT Jul 26, 15:35 UTCJul 26, 16:35 UTC1h 0m
2026-07-26 PDT5848 CHO → CLT Jul 26, 13:35 UTCJul 26, 14:40 UTC1h 5m
2026-07-25 PDT5849 MDT → CLT Jul 25, 23:20 UTCJul 26, 00:25 UTC1h 5m
2026-07-25 PDT5849 MDT → CLT Jul 25, 21:20 UTCJul 25, 22:20 UTC1h 0m
2026-07-25 PDT888Q PHL → YQB Jul 25, 18:00 UTCJul 25, 19:20 UTC1h 20m
2026-07-25 PDT5888 PHL → CLE Jul 25, 15:20 UTCJul 25, 16:45 UTC1h 25m
2026-07-25 PDT5887 YYZ → PHL Jul 25, 12:35 UTCJul 25, 13:35 UTC1h 0m
2026-07-25 PDT5887 YYZ → PHL Jul 25, 12:30 UTCJul 25, 13:34 UTC1h 4m
2026-07-24 PDT5864 GSO → PHL Jul 24, 23:55 UTCJul 25, 00:55 UTC1h 0m
2026-07-24 PDT5895 CHO → PHL Jul 24, 22:05 UTCJul 24, 22:45 UTC40m
2026-07-24 PDT5895 CHO → PHL Jul 24, 20:40 UTCJul 24, 21:15 UTC35m
2026-07-24 PDT6120 PHL → YQB Jul 24, 18:35 UTCJul 24, 19:45 UTC1h 10m
2026-07-24 PDT6120 PHL → YQB Jul 24, 15:35 UTCJul 24, 16:40 UTC1h 5m
2026-07-24 PDT6029 BOS → ROC Jul 24, 12:05 UTCJul 24, 13:10 UTC1h 5m
2026-07-24 PDT6027 ROC → PHL Jul 24, 01:05 UTCJul 24, 02:15 UTC1h 10m
2026-07-23 PDT6038 PHL → ALB Jul 23, 22:20 UTCJul 23, 23:45 UTC1h 25m
2026-07-23 PDT6038 PHL → ALB Jul 23, 19:55 UTCJul 23, 21:00 UTC1h 5m
2026-07-23 PDT5920 PHL → ART Jul 23, 18:20 UTCJul 23, 18:50 UTC30m
2026-07-23 PDT5920 PHL → ART Jul 23, 18:13 UTCJul 23, 18:50 UTC37m
2026-07-23 PDT5920 PHL → ART Jul 23, 17:05 UTCJul 23, 17:30 UTC25m
2026-07-23 PDT6126 MKE → PHL Jul 23, 15:00 UTCJul 23, 15:45 UTC45m
2026-07-23 PDT6126 MKE → PHL Jul 23, 14:56 UTCJul 23, 15:44 UTC48m
2026-07-23 PDT6126 MKE → PHL Jul 23, 13:20 UTCJul 23, 14:15 UTC55m
2026-07-23 PDT5846 SDF → PHL Jul 23, 09:45 UTCJul 23, 11:00 UTC1h 15m
2026-07-23 PDT5846 SDF → PHL Jul 23, 09:41 UTCJul 23, 11:00 UTC1h 19m
2026-07-23 PDT6093 CLT → LYH Jul 23, 02:00 UTCJul 23, 03:20 UTC1h 20m
2026-07-23 PDT6093 CLT → LYH Jul 23, 01:59 UTCJul 23, 03:17 UTC1h 18m
2026-07-22 PDT6108 SDF → PHL Jul 22, 23:35 UTCJul 23, 00:20 UTC45m
2026-07-22 PDT6108 SDF → PHL Jul 22, 21:50 UTCJul 22, 22:40 UTC50m
2026-07-22 PDT5840 RIC → PHL Jul 22, 19:15 UTCJul 22, 20:35 UTC1h 20m
2026-07-22 PDT5840 RIC → PHL Jul 22, 17:10 UTCJul 22, 18:05 UTC55m
2026-07-22 PDT5925 - Jul 22, 15:15 UTCJul 22, 16:05 UTC50m
2026-07-22 PDT5925 BUF → PHL Jul 22, 15:13 UTCJul 22, 16:04 UTC51m
2026-07-22 PDT5925 PHL → BUF Jul 22, 13:10 UTCJul 22, 14:00 UTC50m
2026-07-22 PDT6103 - Jul 22, 02:35 UTCJul 22, 03:20 UTC45m
2026-07-22 PDT5965 PHL → SAV Jul 22, 00:05 UTCJul 22, 00:35 UTC30m
2026-07-21 PDT5989 DTW → PHL Jul 21, 21:50 UTCJul 21, 23:00 UTC1h 10m
2026-07-21 PDT5979 ROA → CLT Jul 21, 19:44 UTCJul 21, 20:26 UTC42m
2026-07-21 PDT5900 ORD → TYS Jul 21, 17:40 UTCJul 21, 18:15 UTC35m
2026-07-21 PDT5910 PHL → BGR Jul 21, 15:05 UTCJul 21, 15:50 UTC45m
2026-07-21 PDT5910 PHL → BGR Jul 21, 15:03 UTCJul 21, 15:48 UTC45m
2026-07-21 PDT5910 PHL → BGR Jul 21, 13:25 UTCJul 21, 14:05 UTC40m
2026-07-21 PDT6009 - Jul 21, 11:15 UTCJul 21, 12:00 UTC45m
2026-07-21 PDT6009 OAJ → CLT Jul 21, 11:10 UTCJul 21, 11:57 UTC47m
2026-07-21 PDT5812 ROC → BOS Jul 21, 01:30 UTCJul 21, 02:00 UTC30m
2026-07-20 PDT5825 PHL → GSP Jul 20, 22:35 UTCJul 20, 23:05 UTC30m
2026-07-20 PDT5825 PHL → GSP Jul 20, 21:10 UTCJul 20, 21:45 UTC35m

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 N653AE page for operator, model, and routing details .

Mode-S A897E4 frequently asked

What is Mode-S code A897E4?
A897E4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N653AE.
Where is Mode-S A897E4 registered?
Mode-S code A897E4 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 A897E4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A897E4, octal 52113744, decimal 11,048,932.
What flights does A897E4 operate?
Mode-S A897E4 has broadcast 20 distinct callsigns, including PDT5825, PDT5869, PDT6113, PDT6074, PDT5941.