Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8E279

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6715C · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A8E279
Octal
52161171
Decimal
11,068,025
Country
US
Tail
N6715C
Type
B752
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
457
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S A8E279.

Country allocation

The ICAO 24-bit address A8E279 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
DAL391 Delta Air Lines 12 2026-07-20
DAL1213 Delta Air Lines 12 2026-07-26
DAL602 - 11 2026-07-07
DAL599 - 9 2026-07-07
DAL631 Delta Air Lines 8 2026-05-26
DAL348 Delta Air Lines 8 2026-07-22
DAL982 - 7 2026-07-12
DAL630 Delta Air Lines 7 2026-05-26
DAL2605 Delta Air Lines 7 2026-06-05
DAL1902 - 7 2026-07-18
DAL1830 Delta Air Lines 7 2026-05-22
DAL744 - 6 2026-07-07
DAL2345 Delta Air Lines 6 2026-07-25
DAL2204 Delta Air Lines 6 2026-07-25
DAL1950 Delta Air Lines 6 2026-05-04
DAL1889 Delta Air Lines 6 2026-06-28
DAL722 - 5 2026-06-21
DAL2881 - 5 2026-07-04
DAL1937 - 5 2026-07-11
DAL1883 - 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL366 ATL → LGA Jul 26, 18:10 UTCJul 26, 21:20 UTC3h 10m
2026-07-26 DAL1213 ATL → MCO Jul 26, 15:25 UTCJul 26, 16:25 UTC1h 0m
2026-07-26 DAL1213 ATL → MCO Jul 26, 12:40 UTCJul 26, 13:45 UTC1h 5m
2026-07-25 DAL2758 MSP → PHX Jul 25, 22:35 UTCJul 26, 01:45 UTC3h 10m
2026-07-25 DAL2389 ALB → ATL Jul 25, 18:05 UTCJul 25, 21:15 UTC3h 10m
2026-07-25 DAL2204 YYZ → ATL Jul 25, 15:35 UTCJul 25, 16:40 UTC1h 5m
2026-07-25 DAL2204 YYZ → ATL Jul 25, 13:25 UTCJul 25, 14:20 UTC55m
2026-07-25 DAL2345 ATL → MSY Jul 25, 03:55 UTCJul 25, 05:15 UTC1h 20m
2026-07-25 DAL2345 ATL → MSY Jul 25, 01:35 UTCJul 25, 02:55 UTC1h 20m
2026-07-24 DAL1873 SXM → ATL Jul 24, 19:55 UTCJul 24, 23:25 UTC3h 30m
2026-07-24 DAL1894 ATL → SXM Jul 24, 14:05 UTCJul 24, 17:20 UTC3h 15m
2026-07-24 DAL1168 FLL → ATL Jul 24, 09:35 UTCJul 24, 10:55 UTC1h 20m
2026-07-24 DAL1107 SEA → JFK Jul 24, 02:30 UTCJul 24, 03:50 UTC1h 20m
2026-07-23 DAL2345 ATL → MSY Jul 23, 23:20 UTCJul 24, 00:40 UTC1h 20m
2026-07-23 DAL2345 ATL → MSY Jul 23, 20:25 UTCJul 23, 21:55 UTC1h 30m
2026-07-22 DAL315 JFK → SLC Jul 22, 22:20 UTCJul 23, 18:00 UTC19h 40m
2026-07-22 DAL348 PHX → ATL Jul 22, 17:25 UTCJul 22, 20:40 UTC3h 15m
2026-07-22 DAL348 PHX → ATL Jul 22, 12:20 UTCJul 22, 15:40 UTC3h 20m
2026-07-22 DAL796 ATL → PHX Jul 22, 00:40 UTCJul 22, 02:40 UTC2h 0m
2026-07-21 DAL9960 JFK → ATL Jul 21, 20:45 UTCJul 21, 22:25 UTC1h 40m
2026-07-21 DAL1587 JFK → PBI Jul 21, 16:55 UTCJul 21, 18:00 UTC1h 5m
2026-07-21 DAL1587 JFK → PBI Jul 21, 16:54 UTCJul 21, 17:58 UTC1h 4m
2026-07-21 DAL1587 JFK → PBI Jul 21, 14:10 UTCJul 21, 15:20 UTC1h 10m
2026-07-21 DAL1215 MSP → SLC Jul 21, 10:50 UTCJul 21, 12:10 UTC1h 20m
2026-07-21 DAL1107 SEA → JFK Jul 21, 02:35 UTCJul 21, 04:00 UTC1h 25m
2026-07-21 DAL759 SFO → ATL Jul 21, 00:00 UTCJul 21, 01:10 UTC1h 10m
2026-07-20 DAL759 SFO → ATL Jul 20, 21:05 UTCJul 20, 22:15 UTC1h 10m
2026-07-20 DAL8783 ATL → MSN Jul 20, 16:20 UTCJul 20, 18:00 UTC1h 40m
2026-07-20 DAL8783 ATL → MSN Jul 20, 16:18 UTCJul 20, 18:03 UTC1h 45m
2026-07-20 DAL2420 ATL → JFK Jul 20, 12:00 UTCJul 20, 13:40 UTC1h 40m
2026-07-20 DAL391 DFW → BOS Jul 20, 06:10 UTCJul 20, 10:05 UTC3h 55m
2026-07-20 DAL391 DFW → BOS Jul 20, 00:25 UTCJul 20, 04:20 UTC3h 55m
2026-07-19 DAL1883 - Jul 19, 05:35 UTCJul 19, 06:15 UTC40m
2026-07-18 DAL1883 - Jul 18, 19:55 UTCJul 18, 23:40 UTC3h 45m
2026-07-18 DAL1902 - Jul 18, 14:45 UTCJul 18, 18:00 UTC3h 15m
2026-07-18 DAL1902 ATL → STT Jul 18, 14:44 UTCJul 18, 18:06 UTC3h 22m
2026-07-18 DAL1215 MSP → SLC Jul 18, 10:50 UTCJul 18, 12:05 UTC1h 15m
2026-07-18 DAL1215 MSP → SLC Jul 18, 10:47 UTCJul 18, 12:10 UTC1h 23m
2026-07-18 DAL1229 ATL → FLL Jul 18, 04:35 UTCJul 18, 05:55 UTC1h 20m
2026-07-18 DAL1425 TPA → ATL Jul 18, 01:25 UTCJul 18, 02:55 UTC1h 31m
2026-07-18 DAL1425 TPA → ATL Jul 18, 01:23 UTCJul 18, 02:54 UTC1h 31m
2026-07-17 DAL1425 ATL → TPA Jul 17, 22:15 UTCJul 17, 23:39 UTC1h 25m
2026-07-17 DAL317 - Jul 17, 00:20 UTCJul 17, 19:09 UTC18h 50m
2026-07-16 DAL317 ATL → ATL Jul 16, 23:10 UTCJul 17, 19:09 UTC20h 0m
2026-07-16 DAL348 - Jul 16, 17:30 UTCJul 16, 20:49 UTC3h 20m
2026-07-16 DAL348 ATL → PHX Jul 16, 12:25 UTCJul 16, 15:45 UTC3h 20m
2026-07-16 DAL391 - Jul 16, 06:15 UTCJul 16, 08:15 UTC2h 0m
2026-07-16 DAL391 RNO → ATL Jul 16, 06:10 UTCJul 16, 10:15 UTC4h 5m
2026-07-16 DAL391 - Jul 16, 00:25 UTCJul 16, 04:30 UTC4h 5m
2026-07-15 DAL9969 - Jul 15, 18:25 UTCJul 15, 21:45 UTC3h 20m

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 N6715C page for operator, model, and routing details .

Mode-S A8E279 frequently asked

What is Mode-S code A8E279?
A8E279 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6715C.
Where is Mode-S A8E279 registered?
Mode-S code A8E279 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 A8E279 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8E279, octal 52161171, decimal 11,068,025.
What flights does A8E279 operate?
Mode-S A8E279 has broadcast 20 distinct callsigns, including DAL391, DAL1213, DAL602, DAL599, DAL631.