Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8AE7F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N659DL · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A8AE7F
Octal
52127177
Decimal
11,054,719
Country
US
Tail
N659DL
Type
B752
Transponder active on ground
Flights observed
383
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A8AE7F.

Country allocation

The ICAO 24-bit address A8AE7F 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 - 15 2026-06-14
DAL2326 Delta Air Lines 11 2026-05-28
DAL796 - 9 2026-07-06
DAL945 Delta Air Lines 8 2026-06-08
DAL1089 Delta Air Lines 8 2026-05-15
DAL2249 Delta Air Lines 7 2026-05-23
DAL2262 Delta Air Lines 6 2026-06-13
DAL927 - 5 2026-06-27
DAL725 Delta Air Lines 5 2026-05-29
DAL2315 Delta Air Lines 5 2026-06-02
DAL2238 Delta Air Lines 5 2026-06-12
DAL2204 - 5 2026-06-30
DAL1525 - 5 2026-07-02
DAL1167 Delta Air Lines 5 2026-04-27
DAL901 Delta Air Lines 4 2026-06-29
DAL8954 - 4 2026-04-13
DAL894 Delta Air Lines 4 2026-05-16
DAL8883 Delta Air Lines 4 2026-06-15
DAL836 Delta Air Lines 4 2026-06-28
DAL825 - 4 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL377 - Jul 13, 23:35 UTCJul 14, 03:45 UTC4h 10m
2026-07-13 DAL2415 PDX → MSP Jul 13, 19:10 UTCJul 13, 22:00 UTC2h 50m
2026-07-13 DAL2415 PDX → MSP Jul 13, 19:07 UTCJul 13, 21:57 UTC2h 50m
2026-07-13 DAL2415 MSP → PDX Jul 13, 14:25 UTCJul 13, 17:30 UTC3h 5m
2026-07-12 DAL555 ANC → MSP Jul 12, 21:00 UTCJul 13, 01:55 UTC4h 55m
2026-07-12 DAL555 MSP → ANC Jul 12, 14:25 UTCJul 12, 19:40 UTC5h 15m
2026-07-12 DAL377 ANC → MSP Jul 12, 06:25 UTCJul 12, 11:20 UTC4h 55m
2026-07-11 DAL377 MSP → ANC Jul 11, 23:30 UTCJul 12, 04:50 UTC5h 20m
2026-07-11 DAL2272 LAS → MSP Jul 11, 18:50 UTCJul 11, 21:30 UTC2h 40m
2026-07-11 DAL497 JFK → LAX Jul 11, 12:15 UTCJul 11, 17:20 UTC5h 5m
2026-07-10 DAL430 LAS → BOS Jul 10, 18:00 UTCJul 10, 22:25 UTC4h 25m
2026-07-10 DAL777 ATL → LAS Jul 10, 12:50 UTCJul 10, 16:25 UTC3h 35m
2026-07-09 DAL395 - Jul 9, 20:25 UTCJul 10, 00:25 UTC4h 0m
2026-07-09 DAL501 ATL → LAX Jul 9, 14:50 UTCJul 9, 18:45 UTC3h 55m
2026-07-09 DAL1611 - Jul 9, 10:35 UTCJul 9, 12:00 UTC1h 25m
2026-07-08 DAL334 BOS → ATL Jul 8, 18:30 UTCJul 8, 21:55 UTC3h 25m
2026-07-08 DAL334 BOS → ATL Jul 8, 13:30 UTCJul 8, 17:05 UTC3h 35m
2026-07-07 DAL778 LAS → DTW Jul 7, 22:25 UTCJul 8, 01:55 UTC3h 30m
2026-07-07 DAL807 JFK → LAS Jul 7, 15:50 UTCJul 7, 20:40 UTC4h 50m
2026-07-07 DAL2420 ATL → JFK Jul 7, 12:00 UTCJul 7, 13:45 UTC1h 45m
2026-07-07 DAL2420 ATL → JFK Jul 7, 11:59 UTCJul 7, 13:45 UTC1h 46m
2026-07-06 DAL796 PHX → ATL Jul 6, 21:40 UTCJul 7, 00:50 UTC3h 10m
2026-07-06 DAL796 PHX → ATL Jul 6, 21:36 UTCJul 7, 00:50 UTC3h 14m
2026-07-06 DAL796 ATL → PHX Jul 6, 16:40 UTCJul 6, 20:00 UTC3h 20m
2026-07-06 DAL744 - Jul 6, 12:50 UTCJul 6, 13:55 UTC1h 5m
2026-07-06 DAL1720 ATL → TPA Jul 6, 01:15 UTCJul 6, 02:15 UTC1h 0m
2026-07-05 DAL1937 ATL → ATL Jul 5, 14:00 UTCJul 5, 23:05 UTC9h 5m
2026-07-05 DAL2286 - Jul 5, 10:20 UTCJul 5, 11:45 UTC1h 25m
2026-07-05 DAL2286 JFK → ATL Jul 5, 10:19 UTCJul 5, 12:01 UTC1h 42m
2026-07-05 DAL689 - Jul 5, 06:05 UTCJul 5, 06:20 UTC15m
2026-07-05 DAL689 LAS → JFK Jul 5, 00:55 UTCJul 5, 06:20 UTC5h 25m
2026-07-05 DAL689 LAS → JFK Jul 5, 00:53 UTCJul 5, 05:46 UTC4h 53m
2026-07-04 DAL807 JFK → LAS Jul 4, 16:30 UTCJul 4, 21:25 UTC4h 55m
2026-07-04 DAL2420 ATL → JFK Jul 4, 12:00 UTCJul 4, 14:00 UTC2h 0m
2026-07-03 DAL759 TPA → ATL Jul 3, 23:50 UTCJul 4, 01:00 UTC1h 10m
2026-07-03 DAL759 TPA → ATL Jul 3, 23:50 UTCJul 4, 01:00 UTC1h 10m
2026-07-03 DAL759 ATL → TPA Jul 3, 20:20 UTCJul 3, 21:25 UTC1h 5m
2026-07-02 DAL317 JFK → SEA Jul 2, 23:50 UTCJul 3, 18:10 UTC18h 20m
2026-07-02 DAL317 JFK → SEA Jul 2, 22:20 UTCJul 3, 18:10 UTC19h 50m
2026-07-02 DAL1525 TPA → ATL Jul 2, 19:40 UTCJul 2, 20:45 UTC1h 5m
2026-07-02 DAL1525 TPA → ATL Jul 2, 19:40 UTCJul 2, 20:44 UTC1h 4m
2026-07-02 DAL1525 ATL → TPA Jul 2, 17:10 UTCJul 2, 18:10 UTC1h 0m
2026-07-02 DAL2328 PHL → ATL Jul 2, 13:45 UTCJul 2, 14:30 UTC45m
2026-07-02 DAL2328 PHL → ATL Jul 2, 13:44 UTCJul 2, 14:26 UTC42m
2026-07-02 DAL2328 PHL → ATL Jul 2, 11:40 UTCJul 2, 12:20 UTC40m
2026-07-01 DAL796 PHX → ATL Jul 1, 20:35 UTCJul 1, 23:55 UTC3h 20m
2026-07-01 DAL796 PHX → ATL Jul 1, 20:35 UTCJul 1, 23:53 UTC3h 18m
2026-07-01 DAL796 ATL → PHX Jul 1, 15:30 UTCJul 1, 19:05 UTC3h 35m
2026-07-01 DAL1338 ORF → ATL Jul 1, 12:25 UTCJul 1, 13:45 UTC1h 20m
2026-06-30 DAL1346 ATL → ORF Jun 30, 22:30 UTCJun 30, 23:40 UTC1h 10m

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 N659DL page for operator, model, and routing details .

Mode-S A8AE7F frequently asked

What is Mode-S code A8AE7F?
A8AE7F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N659DL.
Where is Mode-S A8AE7F registered?
Mode-S code A8AE7F 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 A8AE7F broadcasting right now?
Mode-S A8AE7F is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8AE7F, octal 52127177, decimal 11,054,719.
What flights does A8AE7F operate?
Mode-S A8AE7F has broadcast 20 distinct callsigns, including DAL391, DAL2326, DAL796, DAL945, DAL1089.