Apparatus

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sensors Mode-S transponder

A347B1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N310JZ · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A347B1
Octal
50643661
Decimal
10,700,721
Country
US
Tail
N310JZ
Type
E75L
No current signal · last broadcast 1h ago
Flights observed
683
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A347B1.

Country allocation

The ICAO 24-bit address A347B1 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
ENY3384 - 9 2026-06-21
ENY4130 Envoy Air 8 2026-05-16
ENY4035 Envoy Air 8 2026-06-11
ENY4104 - 7 2026-06-27
ENY4039 - 7 2026-07-02
ENY3997 - 7 2026-07-08
ENY3784 Envoy Air 7 2026-06-11
ENY4177 Envoy Air 6 2026-06-04
ENY4091 Envoy Air 6 2026-06-09
ENY4043 Envoy Air 6 2026-05-05
ENY3880 Envoy Air 6 2026-04-29
ENY3878 Envoy Air 6 2026-04-16
ENY3339 Envoy Air 6 2026-06-04
ENY4203 Envoy Air 5 2026-05-17
ENY4187 Envoy Air 5 2026-06-09
ENY4099 Envoy Air 5 2026-06-10
ENY4004 - 5 2026-07-02
ENY3939 - 5 2026-07-01
ENY3749 - 5 2026-07-03
ENY3682 - 5 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ENY3507 - Jul 13, 23:10 UTCJul 14, 00:50 UTC1h 40m
2026-07-13 ENY3507 - Jul 13, 20:30 UTCJul 13, 22:00 UTC1h 30m
2026-07-13 ENY3778 - Jul 13, 17:35 UTCJul 13, 19:05 UTC1h 30m
2026-07-13 ENY3778 SAT → DFW Jul 13, 17:34 UTCJul 13, 19:04 UTC1h 30m
2026-07-13 ENY3778 - Jul 13, 15:50 UTCJul 13, 16:35 UTC45m
2026-07-13 ENY4073 CMI → DFW Jul 13, 12:45 UTCJul 13, 14:50 UTC2h 5m
2026-07-13 ENY3887 DFW → CMI Jul 13, 04:05 UTCJul 13, 05:45 UTC1h 40m
2026-07-13 ENY3887 DFW → CMI Jul 13, 04:02 UTCJul 13, 05:33 UTC1h 31m
2026-07-13 ENY3969 - Jul 13, 02:05 UTCJul 13, 03:05 UTC1h 0m
2026-07-12 ENY3969 - Jul 12, 22:10 UTCJul 12, 23:00 UTC50m
2026-07-12 ENY3636 - Jul 12, 19:20 UTCJul 12, 20:20 UTC1h 0m
2026-07-12 ENY3636 - Jul 12, 17:05 UTCJul 12, 17:40 UTC35m
2026-07-12 ENY3578 - Jul 12, 14:40 UTCJul 12, 16:05 UTC1h 25m
2026-07-12 ENY3578 DFW → HSV Jul 12, 12:15 UTCJul 12, 13:40 UTC1h 25m
2026-07-12 ENY3614 - Jul 12, 10:10 UTCJul 12, 10:55 UTC45m
2026-07-12 ENY3960 ORD → XNA Jul 12, 04:05 UTCJul 12, 05:20 UTC1h 15m
2026-07-12 ENY3960 ORD → XNA Jul 12, 04:01 UTCJul 12, 05:17 UTC1h 16m
2026-07-11 ENY3403 - Jul 11, 23:35 UTCJul 12, 02:15 UTC2h 40m
2026-07-11 ENY3403 ORD → SRQ Jul 11, 20:10 UTCJul 11, 22:25 UTC2h 15m
2026-07-11 ENY4135 - Jul 11, 17:15 UTCJul 11, 18:40 UTC1h 25m
2026-07-11 ENY4135 - Jul 11, 14:45 UTCJul 11, 16:05 UTC1h 20m
2026-07-11 ENY3460 - Jul 11, 11:05 UTCJul 11, 12:55 UTC1h 50m
2026-07-11 ENY3463 - Jul 11, 02:15 UTCJul 11, 03:45 UTC1h 30m
2026-07-10 ENY4023 - Jul 10, 21:10 UTCJul 10, 23:20 UTC2h 10m
2026-07-10 ENY3742 DCA → PNS Jul 10, 18:05 UTCJul 10, 20:15 UTC2h 10m
2026-07-10 ENY3976 ATL → DCA Jul 10, 15:30 UTCJul 10, 16:50 UTC1h 20m
2026-07-10 ENY3976 DCA → ATL Jul 10, 13:00 UTCJul 10, 14:20 UTC1h 20m
2026-07-10 ENY3668 - Jul 10, 10:35 UTCJul 10, 11:30 UTC55m
2026-07-10 ENY3668 BUF → DCA Jul 10, 10:30 UTCJul 10, 11:23 UTC53m
2026-07-10 ENY4131 DCA → BUF Jul 10, 04:10 UTCJul 10, 04:55 UTC45m
2026-07-10 ENY4131 DCA → BUF Jul 10, 04:07 UTCJul 10, 04:54 UTC47m
2026-07-10 ENY3581 - Jul 10, 01:30 UTCJul 10, 03:05 UTC1h 35m
2026-07-09 ENY3581 DCA → HSV Jul 9, 22:40 UTCJul 10, 00:10 UTC1h 30m
2026-07-09 ENY3462 - Jul 9, 18:10 UTCJul 9, 20:40 UTC2h 30m
2026-07-09 ENY3462 DCA → CID Jul 9, 14:45 UTCJul 9, 16:35 UTC1h 50m
2026-07-09 ENY3710 - Jul 9, 11:40 UTCJul 9, 13:40 UTC2h 0m
2026-07-09 ENY3685 - Jul 9, 00:35 UTCJul 9, 03:15 UTC2h 40m
2026-07-08 ENY3991 BNA → DCA Jul 8, 21:05 UTCJul 8, 22:30 UTC1h 25m
2026-07-08 ENY3991 DCA → BNA Jul 8, 18:10 UTCJul 8, 19:40 UTC1h 30m
2026-07-08 ENY3997 - Jul 8, 15:00 UTCJul 8, 16:25 UTC1h 25m
2026-07-08 ENY3997 HSV → DCA Jul 8, 14:58 UTCJul 8, 16:26 UTC1h 28m
2026-07-08 ENY3997 - Jul 8, 12:30 UTCJul 8, 13:55 UTC1h 25m
2026-07-08 ENY4056 - Jul 8, 10:15 UTCJul 8, 11:10 UTC55m
2026-07-08 ENY4056 SYR → DCA Jul 8, 10:10 UTCJul 8, 11:09 UTC59m
2026-07-08 ENY3975 - Jul 8, 04:15 UTCJul 8, 05:05 UTC50m
2026-07-08 ENY4047 - Jul 8, 01:50 UTCJul 8, 02:15 UTC25m
2026-07-08 ENY4047 BOS → DCA Jul 8, 01:53 UTCJul 8, 03:05 UTC1h 12m
2026-07-07 ENY3438 - Jul 7, 23:00 UTCJul 8, 01:00 UTC2h 0m
2026-07-07 ENY3438 BOS → SDF Jul 7, 19:55 UTCJul 7, 22:00 UTC2h 5m
2026-07-07 ENY4171 ROC → BOS Jul 7, 16:15 UTCJul 7, 17:40 UTC1h 25m

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 N310JZ page for operator, model, and routing details .

Mode-S A347B1 frequently asked

What is Mode-S code A347B1?
A347B1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N310JZ.
Where is Mode-S A347B1 registered?
Mode-S code A347B1 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 A347B1 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A347B1, octal 50643661, decimal 10,700,721.
What flights does A347B1 operate?
Mode-S A347B1 has broadcast 20 distinct callsigns, including ENY3384, ENY4130, ENY4035, ENY4104, ENY4039.