sensors Mode-S transponder

A8F9A3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N678CA · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A8F9A3
Octal
52174643
Decimal
11,073,955
Country
US
Tail
N678CA
Type
CRJ9
No current signal · last broadcast 5h ago
Flights observed
326
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A8F9A3.

Country allocation

The ICAO 24-bit address A8F9A3 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
EDV5482 Endeavor Air 5 2026-05-21
EDV5321 Endeavor Air 5 2026-05-24
EDV5311 Endeavor Air 5 2026-05-13
EDV4871 Endeavor Air 5 2026-05-28
EDV5353 Endeavor Air 4 2026-05-18
EDV5275 Endeavor Air 4 2026-05-06
EDV5235 Endeavor Air 4 2026-04-15
EDV5156 Endeavor Air 4 2026-05-07
EDV5132 Endeavor Air 4 2026-05-20
EDV5072 - 4 2026-04-17
EDV5004 Endeavor Air 4 2026-04-22
EDV4672 Endeavor Air 4 2026-05-19
EDV5460 Endeavor Air 3 2026-04-28
EDV5438 Endeavor Air 3 2026-05-10
EDV5408 Endeavor Air 3 2026-05-22
EDV5389 Endeavor Air 3 2026-05-01
EDV5279 Endeavor Air 3 2026-05-06
EDV5269 Endeavor Air 3 2026-05-18
EDV5267 Endeavor Air 3 2026-04-26
EDV5232 Endeavor Air 3 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EDV5134 CVG → EWR May 29, 23:40 UTCMay 30, 00:45 UTC1h 5m
2026-05-29 EDV4917 BHM → LGA May 29, 21:20 UTCMay 29, 22:20 UTC1h 0m
2026-05-29 EDV5378 LGA → CVG May 29, 18:15 UTCMay 29, 19:40 UTC1h 25m
2026-05-29 EDV4979 BOS → MKE May 29, 14:35 UTCMay 29, 16:30 UTC1h 55m
2026-05-29 EDV5286 RDU → LGA May 29, 12:35 UTCMay 29, 13:35 UTC1h 0m
2026-05-28 EDV4871 DHN → ATL May 28, 22:55 UTCMay 28, 23:50 UTC55m
2026-05-28 EDV4871 DHN → ATL May 28, 20:40 UTCMay 28, 21:25 UTC45m
2026-05-28 EDV4871 DHN → ATL May 28, 20:37 UTCMay 28, 21:39 UTC1h 2m
2026-05-28 EDV4852 LGA → GSP May 28, 18:45 UTCMay 28, 19:35 UTC50m
2026-05-28 EDV4852 LGA → GSP May 28, 16:25 UTCMay 28, 17:10 UTC45m
2026-05-28 EDV4870 RIC → BOS May 28, 14:25 UTCMay 28, 15:15 UTC50m
2026-05-28 EDV4834 GSP → LGA May 28, 03:35 UTCMay 28, 04:25 UTC50m
2026-05-28 EDV4713 JFK → ROC May 28, 01:10 UTCMay 28, 01:55 UTC45m
2026-05-27 EDV4913 ATL → BQK May 27, 23:30 UTCMay 28, 00:05 UTC35m
2026-05-27 EDV4649 MKE → LGA May 27, 19:40 UTCMay 27, 21:50 UTC2h 10m
2026-05-27 EDV4649 MKE → LGA May 27, 16:40 UTCMay 27, 18:30 UTC1h 50m
2026-05-27 EDV5384 CVG → MSP May 27, 14:55 UTCMay 27, 15:30 UTC35m
2026-05-27 EDV5384 CVG → MSP May 27, 14:52 UTCMay 27, 15:30 UTC38m
2026-05-26 EDV4871 DHN → ATL May 26, 22:59 UTCMay 26, 23:45 UTC45m
2026-05-26 EDV4871 DHN → ATL May 26, 20:45 UTCMay 26, 21:34 UTC50m
2026-05-26 EDV4964 LGA → TYS May 26, 17:15 UTCMay 26, 18:59 UTC1h 45m
2026-05-26 EDV4964 LGA → TYS May 26, 14:45 UTCMay 26, 16:20 UTC1h 35m
2026-05-26 EDV5344 DTW → ITH May 26, 11:05 UTCMay 26, 13:15 UTC2h 10m
2026-05-26 EDV5530 MSP → RIC May 26, 01:20 UTCMay 26, 03:25 UTC2h 5m
2026-05-25 EDV4698 LGA → TYS May 25, 22:25 UTCMay 25, 23:04 UTC40m
2026-05-25 EDV4698 LGA → TYS May 25, 22:23 UTCMay 25, 23:01 UTC38m
2026-05-25 EDV4698 LGA → TYS May 25, 20:34 UTCMay 25, 21:19 UTC45m
2026-05-25 EDV5490 EWR → CVG May 25, 18:15 UTCMay 25, 19:00 UTC45m
2026-05-25 EDV5490 EWR → CVG May 25, 16:25 UTCMay 25, 17:05 UTC40m
2026-05-25 EDV5325 DTW → CVG May 25, 14:05 UTCMay 25, 15:15 UTC1h 10m
2026-05-25 EDV4939 STL → LGA May 25, 10:40 UTCMay 25, 13:00 UTC2h 20m
2026-05-24 EDV5501 ORF → LGA May 24, 23:00 UTCMay 24, 23:10 UTC10m
2026-05-24 EDV5324 LGA → BUF May 24, 19:45 UTCMay 24, 20:35 UTC50m
2026-05-24 EDV5323 LGA → TYS May 24, 17:40 UTCMay 24, 18:30 UTC50m
2026-05-24 EDV5323 LGA → TYS May 24, 17:39 UTCMay 24, 18:32 UTC53m
2026-05-24 EDV5366 BNA → LGA May 24, 15:35 UTCMay 24, 16:35 UTC1h 0m
2026-05-24 EDV5366 BNA → LGA May 24, 13:40 UTCMay 24, 14:30 UTC50m
2026-05-24 EDV5321 ROA → LGA May 24, 11:25 UTCMay 24, 12:20 UTC55m
2026-05-23 EDV4902 BOS → BGR May 23, 19:40 UTCMay 23, 20:55 UTC1h 15m
2026-05-23 EDV5112 JFK → BGR May 23, 16:45 UTCMay 23, 18:10 UTC1h 25m
2026-05-23 EDV5112 JFK → BGR May 23, 16:40 UTCMay 23, 18:07 UTC1h 27m
2026-05-23 EDV5026 EWR → BOS May 23, 13:40 UTCMay 23, 15:15 UTC1h 35m
2026-05-23 EDV5120 LGA → GSO May 23, 11:20 UTCMay 23, 12:20 UTC1h 0m
2026-05-23 EDV5120 LGA → GSO May 23, 11:15 UTCMay 23, 12:16 UTC1h 1m
2026-05-23 EDV4648 LEX → ATL May 23, 03:00 UTCMay 23, 05:00 UTC2h 0m
2026-05-23 EDV4648 LEX → ATL May 23, 02:54 UTCMay 23, 04:54 UTC2h 0m
2026-05-22 EDV5408 RIC → BOS May 22, 23:20 UTCMay 23, 01:50 UTC2h 30m
2026-05-22 EDV5289 RDU → LGA May 22, 20:55 UTCMay 22, 21:45 UTC50m
2026-05-22 EDV5047 GSO → LGA May 22, 19:00 UTCMay 22, 19:45 UTC45m
2026-05-22 EDV5387 BOS → PHL May 22, 16:35 UTCMay 22, 17:40 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 N678CA page for operator, model, and routing details .

Mode-S A8F9A3 frequently asked

What is Mode-S code A8F9A3?
A8F9A3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N678CA.
Where is Mode-S A8F9A3 registered?
Mode-S code A8F9A3 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 A8F9A3 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8F9A3, octal 52174643, decimal 11,073,955.
What flights does A8F9A3 operate?
Mode-S A8F9A3 has broadcast 20 distinct callsigns, including EDV5482, EDV5321, EDV5311, EDV4871, EDV5353.