Apparatus

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sensors Mode-S transponder

A4EF58

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N417NL · BOMBARDIER Regional Jet CRJ-200 · operated by BANK OF UTAH TRUSTEE

Hex
A4EF58
Octal
51167530
Decimal
10,809,176
Country
US
Tail
N417NL
Type
CRJ2
No current signal · last broadcast 13h ago
Flights observed
124
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A4EF58.

Country allocation

The ICAO 24-bit address A4EF58 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 1 distinct

Callsign Airline Flights Last seen
N417NL - 124 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 N417NL - Jul 18, 02:45 UTCJul 18, 03:30 UTC46m
2026-07-18 N417NL - Jul 18, 00:19 UTCJul 18, 01:05 UTC45m
2026-07-17 N417NL - Jul 17, 22:45 UTCJul 17, 23:14 UTC30m
2026-07-17 N417NL - Jul 17, 21:25 UTCJul 17, 21:50 UTC25m
2026-07-16 N417NL - Jul 16, 23:25 UTCJul 17, 00:10 UTC45m
2026-07-16 N417NL - Jul 16, 20:49 UTCJul 16, 21:35 UTC45m
2026-07-16 N417NL - Jul 16, 18:19 UTCJul 16, 19:30 UTC1h 10m
2026-07-16 N417NL - Jul 16, 15:49 UTCJul 16, 16:55 UTC1h 5m
2026-07-15 N417NL LAS → LAX Jul 15, 04:05 UTCJul 15, 04:55 UTC50m
2026-07-14 N417NL - Jul 14, 22:20 UTCJul 15, 00:45 UTC2h 24m
2026-07-14 N417NL LAS → RBD Jul 14, 15:05 UTCJul 14, 17:35 UTC2h 30m
2026-07-12 N417NL VNY → LAS Jul 12, 22:35 UTCJul 12, 23:20 UTC45m
2026-07-12 N417NL LAS → VNY Jul 12, 20:45 UTCJul 12, 21:25 UTC40m
2026-07-11 N417NL SFO → LAS Jul 11, 05:55 UTCJul 11, 07:05 UTC1h 10m
2026-07-11 N417NL - Jul 11, 00:30 UTCJul 11, 01:35 UTC1h 5m
2026-07-10 N417NL LAS → BUR Jul 10, 22:05 UTCJul 10, 23:00 UTC55m
2026-07-04 N417NL - Jul 4, 23:05 UTCJul 5, 00:45 UTC1h 40m
2026-07-04 N417NL LAS → HIO Jul 4, 20:40 UTCJul 4, 22:30 UTC1h 50m
2026-07-01 N417NL HIO → LAS Jul 1, 21:55 UTCJul 1, 23:45 UTC1h 50m
2026-07-01 N417NL LAS → HIO Jul 1, 17:20 UTCJul 1, 19:15 UTC1h 55m
2026-06-29 N417NL VNY → LAS Jun 29, 17:30 UTCJun 29, 18:10 UTC40m
2026-06-28 N417NL LAS → VNY Jun 28, 20:04 UTCJun 28, 20:50 UTC45m
2026-06-26 N417NL - Jun 26, 20:10 UTCJun 26, 21:39 UTC1h 30m
2026-06-26 N417NL - Jun 26, 14:19 UTCJun 26, 17:50 UTC3h 30m
2026-06-25 N417NL - Jun 25, 21:25 UTCJun 25, 22:29 UTC1h 5m
2026-06-25 N417NL IAD → PTK Jun 25, 18:39 UTCJun 25, 19:49 UTC1h 10m
2026-06-25 N417NL - Jun 25, 01:04 UTCJun 25, 03:15 UTC2h 10m
2026-06-24 N417NL - Jun 24, 18:09 UTCJun 24, 20:30 UTC2h 20m
2026-06-23 N417NL - Jun 23, 21:39 UTCJun 23, 23:00 UTC1h 20m
2026-06-23 N417NL - Jun 23, 07:15 UTCJun 23, 09:24 UTC2h 10m
2026-06-22 N417NL - Jun 22, 16:40 UTCJun 22, 17:34 UTC55m
2026-06-21 N417NL FTY → IAD Jun 21, 18:54 UTCJun 21, 20:14 UTC1h 20m
2026-06-21 N417NL IAD → FTY Jun 21, 13:24 UTCJun 21, 14:44 UTC1h 20m
2026-06-20 N417NL - Jun 20, 19:09 UTCJun 20, 21:14 UTC2h 5m
2026-06-20 N417NL - Jun 20, 04:04 UTCJun 20, 06:24 UTC2h 20m
2026-06-19 N417NL - Jun 19, 19:39 UTCJun 19, 22:04 UTC2h 25m
2026-06-18 N417NL - Jun 18, 22:20 UTCJun 18, 23:05 UTC45m
2026-06-18 N417NL - Jun 18, 16:50 UTCJun 18, 21:20 UTC4h 30m
2026-06-18 N417NL LAS → VNY Jun 18, 15:00 UTCJun 18, 15:45 UTC45m
2026-06-15 N417NL COE → LAS Jun 15, 01:55 UTCJun 15, 03:45 UTC1h 50m
2026-06-13 N417NL - Jun 13, 22:05 UTCJun 14, 00:05 UTC2h 0m
2026-06-13 N417NL - Jun 13, 00:10 UTCJun 13, 02:25 UTC2h 15m
2026-06-12 N417NL - Jun 12, 20:20 UTCJun 12, 22:50 UTC2h 30m
2026-06-12 N417NL ABQ → LAS Jun 12, 18:10 UTCJun 12, 19:25 UTC1h 15m
2026-06-12 N417NL - Jun 12, 13:30 UTCJun 12, 17:10 UTC3h 40m
2026-06-10 N417NL LAS → RDU Jun 10, 18:10 UTCJun 10, 22:15 UTC4h 5m
2026-06-08 N417NL - Jun 8, 16:35 UTCJun 8, 17:20 UTC45m
2026-06-08 N417NL - Jun 8, 14:40 UTCJun 8, 15:25 UTC45m
2026-06-08 N417NL SBA → LAS Jun 8, 03:25 UTCJun 8, 04:15 UTC50m
2026-06-08 N417NL - Jun 8, 00:50 UTCJun 8, 01:45 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 N417NL page for operator, model, and routing details .

Mode-S A4EF58 frequently asked

What is Mode-S code A4EF58?
A4EF58 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N417NL.
Where is Mode-S A4EF58 registered?
Mode-S code A4EF58 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 A4EF58 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4EF58, octal 51167530, decimal 10,809,176.
What flights does A4EF58 operate?
Mode-S A4EF58 has broadcast 1 distinct callsign, including N417NL.