Apparatus

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sensors Mode-S transponder

A3C5EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N342NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3C5EA
Octal
50742752
Decimal
10,733,034
Country
US
Tail
N342NB
Type
A319
Broadcasting now · callsign DAL1517 · 22,025 ft
Flights observed
513
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Current position

A3C5EA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3C5EA 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
DAL1638 Delta Air Lines 48 2026-07-26
DAL2320 Delta Air Lines 26 2026-07-21
DAL616 Delta Air Lines 22 2026-07-24
DAL617 Delta Air Lines 20 2026-07-26
DAL1316 - 19 2026-07-23
DAL2443 Delta Air Lines 13 2026-07-22
DAL584 Delta Air Lines 9 2026-05-13
DAL583 Delta Air Lines 9 2026-05-13
DAL2574 Delta Air Lines 9 2026-04-28
DAL1281 - 9 2026-07-04
DAL2168 Delta Air Lines 8 2026-05-07
DAL2632 Delta Air Lines 7 2026-05-05
DAL1237 Delta Air Lines 7 2026-06-30
DAL2373 Delta Air Lines 6 2026-06-06
DAL1671 - 6 2026-07-01
DAL1471 Delta Air Lines 6 2026-04-28
DAL1040 - 6 2026-06-23
DAL1023 Delta Air Lines 6 2026-05-05
DAL611 - 5 2026-06-29
DAL2625 - 5 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1638 DTW → DEN Jul 26, 20:30 UTCJul 26, 22:30 UTC2h 0m
2026-07-26 DAL617 JFK → BDA Jul 26, 12:50 UTCJul 26, 18:05 UTC5h 15m
2026-07-26 DAL2726 IAH → LGA Jul 26, 00:55 UTCJul 26, 04:10 UTC3h 15m
2026-07-25 DAL2726 IAH → LGA Jul 25, 17:20 UTCJul 25, 21:10 UTC3h 50m
2026-07-25 DAL1638 DTW → DEN Jul 25, 01:05 UTCJul 25, 03:25 UTC2h 20m
2026-07-25 DAL1638 DTW → DEN Jul 25, 01:03 UTCJul 25, 03:21 UTC2h 18m
2026-07-24 DAL1638 DTW → DEN Jul 24, 21:35 UTCJul 24, 23:50 UTC2h 15m
2026-07-24 DAL616 PLS → DTW Jul 24, 17:33 UTCJul 24, 19:24 UTC1h 51m
2026-07-24 DAL617 JFK → BDA Jul 24, 13:15 UTCJul 24, 19:30 UTC6h 15m
2026-07-24 DAL1638 DTW → DEN Jul 24, 00:10 UTCJul 24, 02:30 UTC2h 20m
2026-07-24 DAL1638 DTW → DEN Jul 24, 00:09 UTCJul 24, 02:31 UTC2h 22m
2026-07-23 DAL1638 DTW → DEN Jul 23, 20:30 UTCJul 23, 23:00 UTC2h 30m
2026-07-23 DAL617 JFK → BDA Jul 23, 13:20 UTCJul 23, 18:10 UTC4h 50m
2026-07-23 DAL1316 DTW → JFK Jul 23, 00:35 UTCJul 23, 02:00 UTC1h 25m
2026-07-22 DAL2443 SLC → SFO Jul 22, 21:30 UTCJul 22, 23:05 UTC1h 35m
2026-07-21 DAL2320 AUS → MSP Jul 21, 16:45 UTCJul 21, 19:10 UTC2h 25m
2026-07-21 DAL2320 AUS → MSP Jul 21, 12:35 UTCJul 21, 14:55 UTC2h 20m
2026-07-21 DAL1638 - Jul 21, 01:30 UTCJul 21, 03:55 UTC2h 25m
2026-07-21 DAL1638 - Jul 21, 01:26 UTCJul 21, 03:56 UTC2h 30m
2026-07-20 DAL1638 - Jul 20, 21:55 UTCJul 21, 00:15 UTC2h 20m
2026-07-20 DAL616 PLS → DTW Jul 20, 16:18 UTCJul 20, 18:05 UTC1h 47m
2026-07-20 DAL617 JFK → BDA Jul 20, 12:50 UTCJul 20, 13:30 UTC40m
2026-07-20 DAL1638 - Jul 20, 05:40 UTCJul 20, 07:45 UTC2h 5m
2026-07-20 DAL1638 - Jul 20, 05:38 UTCJul 20, 07:40 UTC2h 2m
2026-07-20 DAL1638 - Jul 20, 00:55 UTCJul 20, 03:35 UTC2h 40m
2026-07-19 DAL616 PLS → DTW Jul 19, 19:17 UTCJul 19, 22:18 UTC3h 1m
2026-07-19 DAL616 PLS → DTW Jul 19, 15:55 UTCJul 19, 22:20 UTC6h 25m
2026-07-18 DAL1638 - Jul 18, 00:29 UTCJul 18, 03:00 UTC2h 31m
2026-07-18 DAL1638 - Jul 18, 00:28 UTCJul 18, 03:02 UTC2h 34m
2026-07-17 DAL1638 - Jul 17, 20:20 UTCJul 17, 22:45 UTC2h 25m
2026-07-17 DAL616 - Jul 17, 17:15 UTCJul 17, 18:00 UTC45m
2026-07-17 DAL616 - Jul 17, 16:59 UTCJul 17, 17:09 UTC10m
2026-07-17 DAL617 JFK → BDA Jul 17, 12:42 UTCJul 17, 14:17 UTC1h 35m
2026-07-17 DAL617 - Jul 17, 12:45 UTCJul 17, 13:20 UTC35m
2026-07-17 DAL1638 - Jul 17, 00:14 UTCJul 17, 02:34 UTC2h 20m
2026-07-16 DAL1638 - Jul 16, 20:45 UTCJul 16, 22:59 UTC2h 15m
2026-07-16 DAL617 JFK → JFK Jul 16, 12:40 UTCJul 16, 18:00 UTC5h 20m
2026-07-16 DAL1316 - Jul 16, 03:10 UTCJul 16, 04:25 UTC1h 15m
2026-07-16 DAL1316 DTW → JFK Jul 16, 03:08 UTCJul 16, 04:20 UTC1h 12m
2026-07-15 DAL2443 JFK → DTW Jul 15, 21:00 UTCJul 15, 22:30 UTC1h 30m
2026-07-15 DAL2320 RSW → JFK Jul 15, 16:30 UTCJul 15, 19:00 UTC2h 30m
2026-07-15 DAL2320 JFK → RSW Jul 15, 12:30 UTCJul 15, 14:55 UTC2h 25m
2026-07-15 DAL1316 - Jul 15, 00:30 UTCJul 15, 01:50 UTC1h 20m
2026-07-14 DAL2443 JFK → DTW Jul 14, 21:00 UTCJul 14, 22:20 UTC1h 20m
2026-07-14 DAL2320 RSW → JFK Jul 14, 16:25 UTCJul 14, 19:00 UTC2h 35m
2026-07-14 DAL2320 RSW → JFK Jul 14, 16:25 UTCJul 14, 18:55 UTC2h 30m
2026-07-14 DAL2320 JFK → RSW Jul 14, 12:25 UTCJul 14, 14:45 UTC2h 20m
2026-07-14 DAL1638 - Jul 14, 00:20 UTCJul 14, 02:35 UTC2h 15m
2026-07-13 DAL1638 - Jul 13, 20:20 UTCJul 13, 22:40 UTC2h 20m
2026-07-13 DAL616 BDA → JFK Jul 13, 16:13 UTCJul 13, 18:08 UTC1h 55m

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 N342NB page for operator, model, and routing details .

Mode-S A3C5EA frequently asked

What is Mode-S code A3C5EA?
A3C5EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N342NB.
Where is Mode-S A3C5EA registered?
Mode-S code A3C5EA 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 A3C5EA broadcasting right now?
Yes. Mode-S A3C5EA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C5EA, octal 50742752, decimal 10,733,034.
What flights does A3C5EA operate?
Mode-S A3C5EA has broadcast 20 distinct callsigns, including DAL1638, DAL2320, DAL616, DAL617, DAL1316.