Apparatus

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sensors Mode-S transponder

A5427B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N438SW · BOMBARDIER Regional Jet CRJ-200 · operated by CORPORATE FLIGHT MANAGEMENT INC DBA, CONTOUR AVIATION

Hex
A5427B
Octal
51241173
Decimal
10,830,459
Country
US
Tail
N438SW
Type
CRJ2
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
76
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A5427B.

Country allocation

The ICAO 24-bit address A5427B 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
VTE8438 - 8 2026-07-18
VTE3051 - 5 2026-07-20
VTE3094 - 4 2026-07-18
VTE3093 - 4 2026-07-19
VTE3052 Corporate Flight Management 4 2026-07-20
VTE3046 Corporate Flight Management 4 2026-07-24
VTE3044 - 4 2026-07-24
VTE9438 - 3 2026-07-04
VTE3053 - 3 2026-07-20
VTE3015 - 3 2026-07-21
VTE3010 - 3 2026-07-21
VTE5424 - 2 2026-07-11
VTE3092 - 2 2026-07-15
VTE3091 - 2 2026-07-15
VTE3083 Corporate Flight Management 2 2026-07-23
VTE3080 Corporate Flight Management 2 2026-07-22
VTE3071 - 2 2026-07-20
VTE3070 - 2 2026-07-17
VTE3068 - 2 2026-07-19
VTE3043 - 2 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VTE3012 BRL → ORD Jul 26, 21:00 UTCJul 26, 21:45 UTC45m
2026-07-26 VTE3011 ORD → BRL Jul 26, 17:25 UTCJul 26, 17:55 UTC30m
2026-07-26 VTE3043 - Jul 26, 13:55 UTCJul 26, 16:05 UTC2h 10m
2026-07-24 VTE3044 - Jul 24, 19:45 UTCJul 24, 20:40 UTC55m
2026-07-24 VTE3046 ORD → UIN Jul 24, 17:45 UTCJul 24, 18:15 UTC30m
2026-07-24 VTE3041 UIN → ORD Jul 24, 15:15 UTCJul 24, 16:00 UTC45m
2026-07-24 VTE3043 - Jul 24, 13:40 UTCJul 24, 14:35 UTC55m
2026-07-23 VTE3044 - Jul 23, 19:35 UTCJul 23, 20:30 UTC55m
2026-07-23 VTE3046 ORD → UIN Jul 23, 17:50 UTCJul 23, 18:25 UTC35m
2026-07-23 VTE3083 CGI → ORD Jul 23, 15:05 UTCJul 23, 16:10 UTC1h 5m
2026-07-22 VTE3080 ORD → CGI Jul 22, 23:35 UTCJul 23, 00:25 UTC50m
2026-07-22 VTE3083 CGI → ORD Jul 22, 20:45 UTCJul 22, 21:45 UTC1h 0m
2026-07-22 VTE3082 ORD → CGI Jul 22, 18:35 UTCJul 22, 19:45 UTC1h 10m
2026-07-22 VTE3081 CGI → PNS Jul 22, 16:15 UTCJul 22, 17:45 UTC1h 30m
2026-07-22 VTE3085 DFW → CGI Jul 22, 02:15 UTCJul 22, 03:35 UTC1h 20m
2026-07-21 VTE3084 - Jul 21, 22:30 UTCJul 21, 23:45 UTC1h 15m
2026-07-21 VTE3080 ORD → CGI Jul 21, 17:55 UTCJul 21, 18:50 UTC55m
2026-07-21 VTE3010 - Jul 21, 14:20 UTCJul 21, 15:00 UTC40m
2026-07-21 VTE3015 - Jul 21, 00:20 UTCJul 21, 01:35 UTC1h 15m
2026-07-20 VTE3053 - Jul 20, 21:40 UTCJul 20, 22:55 UTC1h 15m
2026-07-20 VTE3052 ORD → MWA Jul 20, 16:50 UTCJul 20, 17:40 UTC50m
2026-07-20 VTE3051 - Jul 20, 14:30 UTCJul 20, 15:35 UTC1h 5m
2026-07-20 VTE3054 - Jul 20, 02:05 UTCJul 20, 02:50 UTC45m
2026-07-20 VTE3071 - Jul 20, 00:10 UTCJul 20, 01:05 UTC55m
2026-07-19 VTE3068 - Jul 19, 22:40 UTCJul 19, 23:20 UTC40m
2026-07-19 VTE3051 - Jul 19, 17:05 UTCJul 19, 18:15 UTC1h 10m
2026-07-19 VTE3052 ORD → MWA Jul 19, 03:45 UTCJul 19, 04:25 UTC40m
2026-07-19 VTE3093 - Jul 19, 00:25 UTCJul 19, 01:45 UTC1h 20m
2026-07-18 VTE3094 - Jul 18, 22:45 UTCJul 18, 23:40 UTC55m
2026-07-18 VTE3051 - Jul 18, 19:35 UTCJul 18, 20:30 UTC55m
2026-07-18 VTE8438 - Jul 18, 18:00 UTCJul 18, 18:35 UTC35m
2026-07-17 VTE3044 BNA → MQY Jul 17, 21:50 UTCJul 17, 21:55 UTC5m
2026-07-17 VTE3044 - Jul 17, 19:55 UTCJul 17, 20:55 UTC1h 0m
2026-07-17 VTE3046 ORD → UIN Jul 17, 18:00 UTCJul 17, 18:34 UTC35m
2026-07-17 VTE3010 - Jul 17, 14:20 UTCJul 17, 15:00 UTC40m
2026-07-17 VTE8438 - Jul 17, 01:39 UTCJul 17, 01:59 UTC20m
2026-07-17 VTE3070 - Jul 17, 00:14 UTCJul 17, 01:00 UTC45m
2026-07-16 VTE3053 - Jul 16, 21:35 UTCJul 16, 22:40 UTC1h 5m
2026-07-16 VTE3052 - Jul 16, 16:49 UTCJul 16, 17:40 UTC50m
2026-07-16 VTE3093 - Jul 16, 14:15 UTCJul 16, 15:19 UTC1h 5m
2026-07-15 VTE3092 - Jul 15, 23:20 UTCJul 16, 00:15 UTC55m
2026-07-15 VTE3091 - Jul 15, 21:00 UTCJul 15, 22:05 UTC1h 5m
2026-07-15 VTE3094 - Jul 15, 19:30 UTCJul 15, 20:10 UTC40m
2026-07-15 VTE3010 - Jul 15, 14:10 UTCJul 15, 14:55 UTC45m
2026-07-15 VTE3015 - Jul 15, 00:40 UTCJul 15, 01:10 UTC30m
2026-07-14 VTE3057 UIN → ORD Jul 14, 20:50 UTCJul 14, 21:35 UTC45m
2026-07-14 VTE3046 - Jul 14, 17:40 UTCJul 14, 18:15 UTC35m
2026-07-14 VTE3075 - Jul 14, 15:00 UTCJul 14, 15:45 UTC45m
2026-07-14 VTE3070 - Jul 14, 00:45 UTCJul 14, 01:20 UTC35m
2026-07-13 VTE3053 - Jul 13, 21:45 UTCJul 13, 22:40 UTC55m

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 N438SW page for operator, model, and routing details .

Mode-S A5427B frequently asked

What is Mode-S code A5427B?
A5427B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N438SW.
Where is Mode-S A5427B registered?
Mode-S code A5427B 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 A5427B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5427B, octal 51241173, decimal 10,830,459.
What flights does A5427B operate?
Mode-S A5427B has broadcast 20 distinct callsigns, including VTE8438, VTE3051, VTE3094, VTE3093, VTE3052.