Apparatus

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sensors Mode-S transponder

A21142

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N232PQ · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A21142
Octal
50410502
Decimal
10,621,250
Country
US
Tail
N232PQ
Type
CRJ9
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
700
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S A21142.

Country allocation

The ICAO 24-bit address A21142 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
EDV5246 Endeavor Air 9 2026-05-10
EDV5178 - 9 2026-07-14
EDV5005 Endeavor Air 9 2026-07-22
EDV5438 Endeavor Air 7 2026-07-20
EDV5051 - 7 2026-07-18
EDV5466 Endeavor Air 6 2026-05-14
EDV5282 Endeavor Air 6 2026-06-01
EDV5161 Endeavor Air 6 2026-05-14
EDV5068 Endeavor Air 6 2026-07-19
EDV5033 - 6 2026-07-19
EDV4951 - 6 2026-07-01
EDV4686 - 6 2026-07-15
EDV5493 - 5 2026-07-14
EDV5471 - 5 2026-07-21
EDV5468 Endeavor Air 5 2026-05-16
EDV5454 - 5 2026-07-14
EDV5396 - 5 2026-06-14
EDV5389 Endeavor Air 5 2026-05-30
EDV5362 - 5 2026-07-10
EDV5216 - 5 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EDV4628 XNA → LGA Jul 26, 21:05 UTCJul 26, 21:50 UTC45m
2026-07-26 EDV4628 XNA → LGA Jul 26, 19:05 UTCJul 26, 19:40 UTC35m
2026-07-26 EDV5425 DTW → BGM Jul 26, 17:25 UTCJul 26, 18:00 UTC35m
2026-07-26 EDV5425 DTW → BGM Jul 26, 17:24 UTCJul 26, 18:00 UTC36m
2026-07-26 EDV5425 DTW → BGM Jul 26, 15:45 UTCJul 26, 16:25 UTC40m
2026-07-26 EDV5247 JFK → CLT Jul 26, 13:40 UTCJul 26, 14:35 UTC55m
2026-07-26 EDV5247 JFK → CLT Jul 26, 11:55 UTCJul 26, 12:55 UTC1h 0m
2026-07-25 EDV5314 BWI → BOS Jul 25, 22:20 UTCJul 25, 23:40 UTC1h 20m
2026-07-25 EDV5314 BWI → BOS Jul 25, 22:12 UTCJul 25, 23:30 UTC1h 18m
2026-07-25 EDV5314 BWI → BOS Jul 25, 20:10 UTCJul 25, 21:10 UTC1h 0m
2026-07-25 EDV4707 GSP → LGA Jul 25, 17:25 UTCJul 25, 19:00 UTC1h 35m
2026-07-25 EDV4707 GSP → LGA Jul 25, 14:50 UTCJul 25, 16:10 UTC1h 20m
2026-07-25 EDV5337 LGA → ORF Jul 25, 12:05 UTCJul 25, 12:40 UTC35m
2026-07-25 EDV5375 ATL → HPN Jul 25, 03:30 UTCJul 25, 04:00 UTC30m
2026-07-25 EDV5059 GTR → ATL Jul 25, 00:55 UTCJul 25, 02:00 UTC1h 5m
2026-07-24 EDV5059 GTR → ATL Jul 24, 22:50 UTCJul 24, 23:55 UTC1h 5m
2026-07-24 EDV4795 ORF → LGA Jul 24, 20:55 UTCJul 24, 21:50 UTC55m
2026-07-24 EDV4795 ORF → LGA Jul 24, 20:51 UTCJul 24, 21:51 UTC1h 0m
2026-07-24 EDV4795 ORF → LGA Jul 24, 18:35 UTCJul 24, 19:45 UTC1h 10m
2026-07-24 EDV4757 TYS → ATL Jul 24, 15:30 UTCJul 24, 16:45 UTC1h 15m
2026-07-24 EDV4757 TYS → ATL Jul 24, 15:27 UTCJul 24, 16:44 UTC1h 17m
2026-07-24 EDV4757 TYS → ATL Jul 24, 13:10 UTCJul 24, 14:10 UTC1h 0m
2026-07-24 EDV4632 DTW → MKE Jul 24, 10:20 UTCJul 24, 10:30 UTC10m
2026-07-24 EDV4632 DTW → MKE Jul 24, 10:14 UTCJul 24, 11:36 UTC1h 22m
2026-07-24 EDV4657 SAV → LGA Jul 24, 02:50 UTCJul 24, 03:55 UTC1h 5m
2026-07-23 EDV5126 LGA → SAV Jul 23, 23:50 UTCJul 24, 01:25 UTC1h 35m
2026-07-23 EDV5126 LGA → SAV Jul 23, 23:49 UTCJul 24, 01:07 UTC1h 18m
2026-07-23 EDV4889 LGA → CLT Jul 23, 20:35 UTCJul 23, 22:50 UTC2h 15m
2026-07-23 EDV5521 DTW → CVG Jul 23, 17:40 UTCJul 23, 18:55 UTC1h 15m
2026-07-23 EDV5268 DCA → CVG Jul 23, 16:05 UTCJul 23, 16:35 UTC30m
2026-07-23 EDV5172 JFK → IND Jul 23, 11:30 UTCJul 23, 14:15 UTC2h 45m
2026-07-23 EDV5172 JFK → IND Jul 23, 11:29 UTCJul 23, 14:19 UTC2h 50m
2026-07-22 EDV5199 JFK → BWI Jul 22, 23:15 UTCJul 23, 02:25 UTC3h 10m
2026-07-22 EDV4682 JFK → SAV Jul 22, 19:40 UTCJul 22, 21:05 UTC1h 25m
2026-07-22 EDV4682 JFK → SAV Jul 22, 19:37 UTCJul 22, 21:06 UTC1h 29m
2026-07-22 EDV5005 JAX → LGA Jul 22, 15:50 UTCJul 22, 17:55 UTC2h 5m
2026-07-22 EDV5005 JAX → LGA Jul 22, 12:20 UTCJul 22, 14:30 UTC2h 10m
2026-07-22 EDV5478 DTW → CVG Jul 22, 02:30 UTCJul 22, 03:15 UTC45m
2026-07-21 EDV5305 - Jul 21, 22:40 UTCJul 21, 23:55 UTC1h 15m
2026-07-21 EDV4913 ATL → BQK Jul 21, 21:10 UTCJul 21, 21:50 UTC40m
2026-07-21 EDV4705 RST → MSP Jul 21, 18:44 UTCJul 21, 19:10 UTC26m
2026-07-21 EDV4705 MSP → RST Jul 21, 17:30 UTCJul 21, 17:50 UTC20m
2026-07-21 EDV5325 STL → MSP Jul 21, 15:10 UTCJul 21, 16:25 UTC1h 15m
2026-07-21 EDV4939 STL → LGA Jul 21, 11:25 UTCJul 21, 13:40 UTC2h 15m
2026-07-21 EDV5471 - Jul 21, 02:45 UTCJul 21, 04:45 UTC2h 0m
2026-07-20 EDV5471 LGA → JAX Jul 20, 23:25 UTCJul 21, 01:30 UTC2h 4m
2026-07-20 EDV5438 IND → MSP Jul 20, 19:55 UTCJul 20, 21:55 UTC2h 0m
2026-07-20 EDV5438 IND → MSP Jul 20, 16:45 UTCJul 20, 18:30 UTC1h 45m
2026-07-20 EDV4638 LGA → MEM Jul 20, 13:35 UTCJul 20, 15:35 UTC2h 0m
2026-07-20 EDV4723 LGA → BNA Jul 20, 02:00 UTCJul 20, 03:45 UTC1h 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 N232PQ page for operator, model, and routing details .

Mode-S A21142 frequently asked

What is Mode-S code A21142?
A21142 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N232PQ.
Where is Mode-S A21142 registered?
Mode-S code A21142 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 A21142 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A21142, octal 50410502, decimal 10,621,250.
What flights does A21142 operate?
Mode-S A21142 has broadcast 20 distinct callsigns, including EDV5246, EDV5178, EDV5005, EDV5438, EDV5051.