Apparatus

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sensors Mode-S transponder

A3627D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N317TB · operated by AMERICAN AIRLINES INC

Hex
A3627D
Octal
50661175
Decimal
10,707,581
Country
US
Tail
N317TB
Type
E75L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
774
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A3627D.

Country allocation

The ICAO 24-bit address A3627D 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
ENY3485 Envoy Air 10 2026-04-28
ENY3819 Envoy Air 9 2026-07-21
ENY3733 - 9 2026-07-20
ENY4152 Envoy Air 8 2026-05-08
ENY4121 Envoy Air 8 2026-07-25
ENY3556 - 8 2026-06-26
ENY3502 - 8 2026-07-12
ENY3465 Envoy Air 8 2026-05-18
ENY3971 - 7 2026-06-24
ENY3751 Envoy Air 7 2026-07-20
ENY4214 Envoy Air 6 2026-07-23
ENY4104 Envoy Air 6 2026-07-19
ENY4019 Envoy Air 6 2026-06-10
ENY3960 - 6 2026-07-11
ENY3795 - 6 2026-06-21
ENY3718 Envoy Air 6 2026-07-26
ENY3683 - 6 2026-07-15
ENY3591 - 6 2026-07-17
ENY3581 Envoy Air 6 2026-05-26
ENY3527 Envoy Air 6 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3718 CMH → BOS Jul 26, 20:40 UTCJul 26, 21:15 UTC35m
2026-07-26 ENY3718 CMH → BOS Jul 26, 15:20 UTCJul 26, 18:25 UTC3h 5m
2026-07-26 ENY3524 BOS → ILM Jul 26, 11:35 UTCJul 26, 12:45 UTC1h 10m
2026-07-26 ENY3456 HPN → ORD Jul 26, 02:00 UTCJul 26, 03:05 UTC1h 5m
2026-07-25 ENY3602 ORD → AUS Jul 25, 21:50 UTCJul 25, 23:35 UTC1h 45m
2026-07-25 ENY3602 ORD → AUS Jul 25, 21:47 UTCJul 25, 23:34 UTC1h 47m
2026-07-25 ENY3602 ORD → AUS Jul 25, 18:35 UTCJul 25, 20:20 UTC1h 45m
2026-07-25 ENY3488 ORD → AUS Jul 25, 16:15 UTCJul 25, 17:05 UTC50m
2026-07-25 ENY4121 BUF → ORD Jul 25, 13:00 UTCJul 25, 15:05 UTC2h 5m
2026-07-25 ENY4121 BUF → ORD Jul 25, 12:56 UTCJul 25, 15:04 UTC2h 8m
2026-07-25 ENY4139 MIA → RDU Jul 25, 10:35 UTCJul 25, 11:10 UTC35m
2026-07-25 ENY4139 MIA → RDU Jul 25, 10:34 UTCJul 25, 11:07 UTC33m
2026-07-25 ENY4071 IND → MIA Jul 25, 03:30 UTCJul 25, 04:05 UTC35m
2026-07-25 ENY3821 BMI → DFW Jul 25, 00:30 UTCJul 25, 01:35 UTC1h 5m
2026-07-24 ENY3821 BMI → DFW Jul 24, 22:45 UTCJul 24, 23:50 UTC1h 5m
2026-07-24 ENY4316 SAT → DFW Jul 24, 18:45 UTCJul 24, 21:20 UTC2h 35m
2026-07-24 ENY4325 HRL → DFW Jul 24, 14:35 UTCJul 24, 16:55 UTC2h 20m
2026-07-24 ENY3367 FAY → DFW Jul 24, 11:00 UTCJul 24, 13:20 UTC2h 20m
2026-07-24 ENY3367 FAY → DFW Jul 24, 10:55 UTCJul 24, 13:19 UTC2h 24m
2026-07-24 ENY3380 DCA → MSY Jul 24, 03:15 UTCJul 24, 05:45 UTC2h 30m
2026-07-24 ENY3380 DCA → MSY Jul 24, 03:12 UTCJul 24, 05:43 UTC2h 31m
2026-07-24 ENY3517 ATL → CLT Jul 24, 01:55 UTCJul 24, 02:15 UTC20m
2026-07-24 ENY3517 ATL → CLT Jul 24, 00:30 UTCJul 24, 00:50 UTC20m
2026-07-23 ENY4214 ORD → BOS Jul 23, 16:35 UTCJul 23, 16:55 UTC20m
2026-07-23 ENY4214 ORD → BOS Jul 23, 14:20 UTCJul 23, 14:40 UTC20m
2026-07-23 ENY3640 GSO → MIA Jul 23, 11:20 UTCJul 23, 12:55 UTC1h 35m
2026-07-23 ENY3640 GSO → MIA Jul 23, 11:15 UTCJul 23, 12:52 UTC1h 37m
2026-07-23 ENY3648 ORD → GSO Jul 23, 00:05 UTCJul 23, 01:25 UTC1h 20m
2026-07-22 ENY3718 CMH → BOS Jul 22, 19:19 UTCJul 22, 22:04 UTC2h 45m
2026-07-22 ENY3718 CMH → BOS Jul 22, 15:00 UTCJul 22, 22:05 UTC7h 5m
2026-07-22 ENY3496 MLI → DFW Jul 22, 11:20 UTCJul 22, 13:25 UTC2h 5m
2026-07-22 ENY3496 MLI → DFW Jul 22, 11:16 UTCJul 22, 13:21 UTC2h 5m
2026-07-21 ENY3499 TRI → DFW Jul 21, 23:55 UTCJul 22, 01:35 UTC1h 40m
2026-07-21 ENY3819 MSY → AUS Jul 21, 21:10 UTCJul 21, 22:50 UTC1h 40m
2026-07-21 ENY3819 MSY → AUS Jul 21, 18:40 UTCJul 21, 19:55 UTC1h 15m
2026-07-21 ENY3488 ORD → AUS Jul 21, 16:20 UTCJul 21, 17:20 UTC1h 0m
2026-07-21 ENY4121 BUF → ORD Jul 21, 15:15 UTCJul 21, 15:25 UTC10m
2026-07-21 ENY4121 BUF → ORD Jul 21, 12:55 UTCJul 21, 15:25 UTC2h 30m
2026-07-21 ENY4121 BUF → ORD Jul 21, 12:51 UTCJul 21, 14:58 UTC2h 7m
2026-07-21 ENY3888 DCA → MSP Jul 21, 10:20 UTCJul 21, 11:45 UTC1h 25m
2026-07-21 ENY3897 MIA → GSP Jul 21, 02:15 UTCJul 21, 03:45 UTC1h 30m
2026-07-20 ENY4085 - Jul 20, 22:35 UTCJul 21, 00:50 UTC2h 14m
2026-07-20 ENY4085 CMH → MIA Jul 20, 22:34 UTCJul 21, 00:50 UTC2h 16m
2026-07-20 ENY3361 BNA → ORD Jul 20, 20:45 UTCJul 20, 21:15 UTC30m
2026-07-20 ENY3361 BNA → ORD Jul 20, 20:40 UTCJul 20, 21:29 UTC49m
2026-07-20 ENY3733 - Jul 20, 17:10 UTCJul 20, 19:00 UTC1h 50m
2026-07-20 ENY3733 - Jul 20, 14:25 UTCJul 20, 15:50 UTC1h 25m
2026-07-20 ENY3751 ELP → AUS Jul 20, 10:20 UTCJul 20, 12:25 UTC2h 5m
2026-07-20 ENY3751 ELP → AUS Jul 20, 10:19 UTCJul 20, 12:11 UTC1h 52m
2026-07-20 ENY3499 - Jul 20, 00:30 UTCJul 20, 02:05 UTC1h 35m

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 N317TB page for operator, model, and routing details .

Mode-S A3627D frequently asked

What is Mode-S code A3627D?
A3627D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N317TB.
Where is Mode-S A3627D registered?
Mode-S code A3627D 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 A3627D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3627D, octal 50661175, decimal 10,707,581.
What flights does A3627D operate?
Mode-S A3627D has broadcast 20 distinct callsigns, including ENY3485, ENY3819, ENY3733, ENY4152, ENY4121.