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sensors Mode-S transponder

A5E2BC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N479CA · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
A5E2BC
Octal
51361274
Decimal
10,871,484
Country
US
Tail
N479CA
Type
CRJ2
No current signal · last broadcast 2h ago
Flights observed
624
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A5E2BC.

Country allocation

The ICAO 24-bit address A5E2BC 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
SKW5953 SkyWest Airlines 10 2026-06-11
SKW4644 - 9 2026-07-11
SKW5887 - 8 2026-07-11
SKW6063 SkyWest Airlines 7 2026-06-25
SKW5044 SkyWest Airlines 7 2026-06-14
SKW5585 - 6 2026-06-30
SKW6068 - 5 2026-07-01
SKW5634 - 5 2026-07-05
SKW5432 - 5 2026-07-11
SKW5297 SkyWest Airlines 5 2026-05-14
SKW5130 - 5 2026-07-01
SKW5103 SkyWest Airlines 5 2026-05-24
SKW5020 SkyWest Airlines 5 2026-07-06
SKW5016 SkyWest Airlines 5 2026-05-31
SKW4797 - 5 2026-06-29
SKW4736 - 5 2026-06-24
SKW332C SkyWest Airlines 5 2026-05-14
SKW5915 SkyWest Airlines 4 2026-06-10
SKW5725 SkyWest Airlines 4 2026-05-22
SKW5708 SkyWest Airlines 4 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW730C - Jul 14, 23:20 UTCJul 15, 00:10 UTC50m
2026-07-14 SKW5128 - Jul 14, 20:30 UTCJul 14, 21:50 UTC1h 20m
2026-07-14 SKW5128 MGM → IAH Jul 14, 20:15 UTCJul 14, 21:48 UTC1h 33m
2026-07-14 SKW436K - Jul 14, 17:50 UTCJul 14, 19:25 UTC1h 35m
2026-07-14 SKW5803 - Jul 14, 15:05 UTCJul 14, 16:25 UTC1h 20m
2026-07-14 SKW5803 XNA → IAH Jul 14, 15:09 UTCJul 14, 16:38 UTC1h 29m
2026-07-14 SKW5597 - Jul 14, 01:45 UTCJul 14, 03:00 UTC1h 15m
2026-07-13 SKW5047 - Jul 13, 22:50 UTCJul 14, 00:35 UTC1h 45m
2026-07-13 SKW5091 - Jul 13, 20:05 UTCJul 13, 21:45 UTC1h 40m
2026-07-13 SKW5091 IAH → CHA Jul 13, 19:47 UTCJul 13, 21:41 UTC1h 54m
2026-07-13 SKW5088 - Jul 13, 15:50 UTCJul 13, 17:15 UTC1h 25m
2026-07-13 SKW730C - Jul 13, 03:25 UTCJul 13, 04:20 UTC55m
2026-07-12 SKW5198 - Jul 12, 23:25 UTCJul 13, 01:50 UTC2h 25m
2026-07-11 SKW5887 - Jul 11, 14:45 UTCJul 11, 15:00 UTC15m
2026-07-11 SKW5887 ORD → SBN Jul 11, 14:39 UTCJul 11, 15:00 UTC21m
2026-07-11 SKW5432 LNK → ORD Jul 11, 11:21 UTCJul 11, 12:09 UTC48m
2026-07-11 SKW5432 LNK → ORD Jul 11, 11:05 UTCJul 11, 12:20 UTC1h 15m
2026-07-11 SKW5314 - Jul 11, 01:55 UTCJul 11, 03:10 UTC1h 15m
2026-07-11 SKW4644 - Jul 11, 00:10 UTCJul 11, 00:15 UTC5m
2026-07-10 SKW4644 - Jul 10, 23:00 UTCJul 11, 00:15 UTC1h 15m
2026-07-10 SKW4644 CRW → ORD Jul 10, 22:33 UTCJul 10, 23:54 UTC1h 21m
2026-07-10 SKW5566 ORD → CRW Jul 10, 20:40 UTCJul 10, 21:45 UTC1h 5m
2026-07-10 SKW5448 FAR → ORD Jul 10, 18:05 UTCJul 10, 18:41 UTC36m
2026-07-10 SKW5448 - Jul 10, 17:20 UTCJul 10, 17:45 UTC25m
2026-07-10 SKW4789 ORD → FAR Jul 10, 03:40 UTCJul 10, 05:10 UTC1h 30m
2026-07-10 SKW5064 DEC → ORD Jul 10, 00:05 UTCJul 10, 00:50 UTC45m
2026-07-09 SKW5064 DEC → ORD Jul 9, 23:05 UTCJul 9, 23:30 UTC25m
2026-07-09 SKW5017 - Jul 9, 19:25 UTCJul 9, 20:15 UTC50m
2026-07-09 SKW465C - Jul 9, 17:25 UTCJul 9, 18:10 UTC45m
2026-07-09 SKW465C ORD → CMX Jul 9, 17:26 UTCJul 9, 18:20 UTC54m
2026-07-09 SKW5213 CAK → ORD Jul 9, 14:18 UTCJul 9, 14:59 UTC41m
2026-07-09 SKW5213 CAK → ORD Jul 9, 14:15 UTCJul 9, 15:10 UTC55m
2026-07-08 SKW476T ORD → CAK Jul 8, 23:45 UTCJul 9, 00:50 UTC1h 5m
2026-07-08 SKW476T ORD → CAK Jul 8, 23:32 UTCJul 9, 00:45 UTC1h 13m
2026-07-08 SKW5675 ORD → ORD Jul 8, 22:00 UTCJul 8, 22:05 UTC5m
2026-07-08 SKW5675 - Jul 8, 21:40 UTCJul 8, 22:05 UTC25m
2026-07-08 SKW5675 SBN → ORD Jul 8, 21:23 UTCJul 8, 21:43 UTC20m
2026-07-08 SKW376K - Jul 8, 19:35 UTCJul 8, 19:55 UTC20m
2026-07-08 SKW376K ORD → SBN Jul 8, 19:39 UTCJul 8, 19:56 UTC17m
2026-07-08 SKW5807 - Jul 8, 15:50 UTCJul 8, 16:25 UTC35m
2026-07-08 SKW5949 - Jul 8, 14:10 UTCJul 8, 14:40 UTC30m
2026-07-08 SKW5801 - Jul 8, 11:20 UTCJul 8, 12:25 UTC1h 5m
2026-07-08 SKW5801 CRW → ORD Jul 8, 11:15 UTCJul 8, 12:17 UTC1h 2m
2026-07-08 SKW4784 ORD → CRW Jul 8, 00:30 UTCJul 8, 01:35 UTC1h 5m
2026-07-07 SKW4784 ORD → CRW Jul 7, 23:28 UTCJul 8, 01:36 UTC2h 8m
2026-07-07 SKW4718 LNK → ORD Jul 7, 20:40 UTCJul 7, 22:10 UTC1h 30m
2026-07-07 SKW5244 ORD → LNK Jul 7, 18:15 UTCJul 7, 19:25 UTC1h 10m
2026-07-07 SKW5244 ORD → LNK Jul 7, 18:24 UTCJul 7, 19:18 UTC54m
2026-07-07 SKW5981 - Jul 7, 16:20 UTCJul 7, 17:00 UTC40m
2026-07-07 SKW5981 FWA → ORD Jul 7, 16:11 UTCJul 7, 16:52 UTC41m

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 N479CA page for operator, model, and routing details .

Mode-S A5E2BC frequently asked

What is Mode-S code A5E2BC?
A5E2BC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N479CA.
Where is Mode-S A5E2BC registered?
Mode-S code A5E2BC 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 A5E2BC broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5E2BC, octal 51361274, decimal 10,871,484.
What flights does A5E2BC operate?
Mode-S A5E2BC has broadcast 20 distinct callsigns, including SKW5953, SKW4644, SKW5887, SKW6063, SKW5044.