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sensors Mode-S transponder

A263DC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N253NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A263DC
Octal
50461734
Decimal
10,642,396
Country
US
Tail
N253NN
Type
E75L
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
673
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A263DC.

Country allocation

The ICAO 24-bit address A263DC 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
ENY3517 - 8 2026-07-07
ENY3821 - 7 2026-07-03
ENY3464 Envoy Air 7 2026-05-13
ENY4152 - 6 2026-06-24
ENY4110 - 6 2026-06-19
ENY4109 - 6 2026-07-03
ENY4100 Envoy Air 6 2026-07-25
ENY4074 - 6 2026-07-03
ENY3969 - 6 2026-06-27
ENY3494 Envoy Air 6 2026-06-08
ENY3981 Envoy Air 5 2026-05-22
ENY3960 Envoy Air 5 2026-04-17
ENY3939 Envoy Air 5 2026-05-15
ENY3756 Envoy Air 5 2026-07-22
ENY3652 Envoy Air 5 2026-05-30
ENY3562 - 5 2026-07-16
ENY3479 - 5 2026-07-09
ENY3422 Envoy Air 5 2026-05-15
ENY3386 - 5 2026-07-03
ENY3350 Envoy Air 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3388 CLE → MIA Jul 26, 22:25 UTCJul 26, 23:00 UTC35m
2026-07-26 ENY3847 ORD → GSP Jul 26, 20:05 UTCJul 26, 20:50 UTC45m
2026-07-26 ENY3847 ORD → GSP Jul 26, 17:50 UTCJul 26, 18:40 UTC50m
2026-07-26 ENY4005 TRC → DFW Jul 26, 15:30 UTCJul 26, 16:15 UTC45m
2026-07-26 ENY4005 TRC → DFW Jul 26, 13:35 UTCJul 26, 14:25 UTC50m
2026-07-26 ENY3473 STL → MIA Jul 26, 10:20 UTCJul 26, 12:00 UTC1h 40m
2026-07-26 ENY3798 ORD → TYS Jul 26, 02:55 UTCJul 26, 04:30 UTC1h 35m
2026-07-26 ENY3798 ORD → TYS Jul 26, 02:55 UTCJul 26, 04:29 UTC1h 34m
2026-07-25 ENY3507 DFW → STS Jul 25, 22:55 UTCJul 26, 00:20 UTC1h 25m
2026-07-25 ENY3507 DFW → STS Jul 25, 20:25 UTCJul 25, 21:50 UTC1h 25m
2026-07-25 ENY3549 CLT → MYR Jul 25, 18:05 UTCJul 25, 18:40 UTC35m
2026-07-25 ENY3549 CLT → MYR Jul 25, 18:02 UTCJul 25, 18:34 UTC32m
2026-07-25 ENY3549 CLT → MYR Jul 25, 16:40 UTCJul 25, 17:05 UTC25m
2026-07-25 ENY4100 HRL → DFW Jul 25, 14:05 UTCJul 25, 15:10 UTC1h 5m
2026-07-25 ENY4100 HRL → DFW Jul 25, 12:25 UTCJul 25, 13:20 UTC55m
2026-07-25 ENY3393 RDU → ORD Jul 25, 10:20 UTCJul 25, 10:55 UTC35m
2026-07-25 ENY3349 STS → PHX Jul 25, 04:20 UTCJul 25, 04:40 UTC20m
2026-07-25 ENY3574 IND → ORD Jul 25, 01:25 UTCJul 25, 02:40 UTC1h 15m
2026-07-24 ENY3574 IND → ORD Jul 24, 23:15 UTCJul 25, 00:15 UTC1h 0m
2026-07-24 ENY3374 PHX → STS Jul 24, 19:30 UTCJul 24, 21:10 UTC1h 40m
2026-07-24 ENY3374 PHX → STS Jul 24, 17:15 UTCJul 24, 18:35 UTC1h 20m
2026-07-24 ENY3578 ORD → XNA Jul 24, 14:40 UTCJul 24, 16:10 UTC1h 30m
2026-07-24 ENY3578 ORD → XNA Jul 24, 12:20 UTCJul 24, 13:45 UTC1h 25m
2026-07-24 ENY3351 ROC → ORD Jul 24, 03:25 UTCJul 24, 04:10 UTC45m
2026-07-24 ENY3351 ROC → ORD Jul 24, 01:25 UTCJul 24, 02:30 UTC1h 5m
2026-07-23 ENY3834 BOS → ORD Jul 23, 22:40 UTCJul 23, 23:10 UTC30m
2026-07-23 ENY3834 BOS → ORD Jul 23, 21:30 UTCJul 23, 21:50 UTC20m
2026-07-23 ENY4095 BIL → DFW Jul 23, 19:25 UTCJul 23, 20:05 UTC40m
2026-07-23 ENY4095 BIL → DFW Jul 23, 18:00 UTCJul 23, 18:35 UTC35m
2026-07-23 ENY3810 MTY → DFW Jul 23, 15:15 UTCJul 23, 16:35 UTC1h 20m
2026-07-22 ENY3756 MIA → MTY Jul 22, 23:40 UTCJul 23, 02:40 UTC3h 0m
2026-07-22 ENY3350 BDL → ORD Jul 22, 20:00 UTCJul 22, 22:15 UTC2h 15m
2026-07-22 ENY3350 BDL → ORD Jul 22, 19:49 UTCJul 22, 22:13 UTC2h 24m
2026-07-22 ENY3989 ORD → CVG Jul 22, 16:40 UTCJul 22, 18:55 UTC2h 15m
2026-07-22 ENY3492 - Jul 22, 12:25 UTCJul 22, 13:20 UTC55m
2026-07-22 ENY3492 JAX → MIA Jul 22, 12:24 UTCJul 22, 13:20 UTC56m
2026-07-22 ENY3893 ORD → AVP Jul 22, 00:50 UTCJul 22, 01:40 UTC50m
2026-07-22 ENY3893 ORD → AVP Jul 22, 00:48 UTCJul 22, 01:39 UTC51m
2026-07-21 ENY3566 ORD → SYR Jul 21, 21:35 UTCJul 21, 22:35 UTC1h 0m
2026-07-21 ENY3566 ORD → SYR Jul 21, 19:35 UTCJul 21, 20:45 UTC1h 10m
2026-07-21 ENY3518 MLU → DFW Jul 21, 18:05 UTCJul 21, 18:30 UTC25m
2026-07-21 ENY3518 MLU → DFW Jul 21, 16:25 UTCJul 21, 16:45 UTC20m
2026-07-21 ENY4039 DFW → ABI Jul 21, 14:25 UTCJul 21, 14:55 UTC30m
2026-07-21 ENY4039 DFW → ABI Jul 21, 12:25 UTCJul 21, 12:45 UTC20m
2026-07-21 ENY4139 MIA → RDU Jul 21, 10:25 UTCJul 21, 10:55 UTC30m
2026-07-21 ENY4071 IND → MIA Jul 21, 03:45 UTCJul 21, 04:25 UTC40m
2026-07-21 ENY4071 IND → MIA Jul 21, 03:40 UTCJul 21, 04:19 UTC39m
2026-07-21 ENY3743 ABQ → AUS Jul 21, 01:20 UTCJul 21, 02:45 UTC1h 25m
2026-07-20 ENY3743 ABQ → AUS Jul 20, 23:05 UTCJul 21, 00:35 UTC1h 29m
2026-07-20 ENY3419 RDU → CVG Jul 20, 18:25 UTCJul 20, 20:50 UTC2h 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 N253NN page for operator, model, and routing details .

Mode-S A263DC frequently asked

What is Mode-S code A263DC?
A263DC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N253NN.
Where is Mode-S A263DC registered?
Mode-S code A263DC 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 A263DC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A263DC, octal 50461734, decimal 10,642,396.
What flights does A263DC operate?
Mode-S A263DC has broadcast 20 distinct callsigns, including ENY3517, ENY3821, ENY3464, ENY4152, ENY4110.