sensors Mode-S transponder

A69F88

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N526DE · AIRBUS A-321neo · operated by DELTA AIR LINES INC

Hex
A69F88
Octal
51517610
Decimal
10,919,816
Country
US
Tail
N526DE
Type
A21N
No current signal · last broadcast Jul 26, 20:25 UTC
Flights observed
432
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:25 UTC

Last known position

Most recent position reported by Mode-S A69F88.

Country allocation

The ICAO 24-bit address A69F88 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
DAL428 Delta Air Lines 11 2026-07-20
DAL1961 Delta Air Lines 11 2026-07-26
DAL375 Delta Air Lines 10 2026-07-21
DAL613 Delta Air Lines 9 2026-07-22
DAL1780 - 9 2026-07-16
DAL612 Delta Air Lines 8 2026-07-22
DAL506 Delta Air Lines 8 2026-07-21
DAL1975 - 8 2026-07-13
DAL1719 - 8 2026-06-24
DAL683 Delta Air Lines 7 2026-04-18
DAL644 Delta Air Lines 7 2026-05-04
DAL328 Delta Air Lines 7 2026-06-03
DAL2119 - 7 2026-07-20
DAL1994 Delta Air Lines 7 2026-05-07
DAL332 - 6 2026-07-11
DAL2032 - 6 2026-07-17
DAL1908 Delta Air Lines 6 2026-06-11
DAL1209 - 6 2026-07-09
DAL1138 - 6 2026-07-20
DAL377 Delta Air Lines 5 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1961 JFK → SJU Jul 26, 20:00 UTCJul 26, 20:25 UTC25m
2026-07-26 DAL1961 JFK → SJU Jul 26, 17:05 UTCJul 26, 17:40 UTC35m
2026-07-26 DAL1854 SJU → JFK Jul 26, 11:50 UTCJul 26, 15:15 UTC3h 25m
2026-07-26 DAL1859 JFK → SJU Jul 26, 02:55 UTCJul 26, 03:15 UTC20m
2026-07-26 DAL1859 JFK → SJU Jul 26, 00:05 UTCJul 26, 00:40 UTC35m
2026-07-25 DAL1957 MBJ → JFK Jul 25, 19:30 UTCJul 25, 21:55 UTC2h 25m
2026-07-25 DAL1957 MBJ → JFK Jul 25, 18:38 UTCJul 25, 21:50 UTC3h 12m
2026-07-25 DAL1955 JFK → MBJ Jul 25, 13:19 UTCJul 25, 16:55 UTC3h 36m
2026-07-25 DAL1955 JFK → MBJ Jul 25, 13:20 UTCJul 25, 16:05 UTC2h 45m
2026-07-25 DAL1668 MCO → BOS Jul 25, 00:25 UTCJul 25, 02:33 UTC2h 8m
2026-07-25 DAL1668 MCO → BOS Jul 25, 00:30 UTCJul 25, 02:35 UTC2h 5m
2026-07-24 DAL867 MCO → LAX Jul 24, 17:55 UTCJul 24, 22:35 UTC4h 40m
2026-07-24 DAL996 ATL → LAX Jul 24, 11:30 UTCJul 24, 15:25 UTC3h 55m
2026-07-24 DAL302 BOS → SFO Jul 24, 07:00 UTCJul 24, 09:25 UTC2h 25m
2026-07-24 DAL302 BOS → SFO Jul 24, 06:57 UTCJul 24, 09:21 UTC2h 24m
2026-07-24 DAL424 JFK → ATL Jul 24, 00:55 UTCJul 24, 04:30 UTC3h 35m
2026-07-23 DAL1917 JFK → JFK Jul 23, 13:20 UTCJul 23, 22:25 UTC9h 5m
2026-07-22 DAL612 AUA → JFK Jul 22, 21:15 UTCJul 23, 01:50 UTC4h 35m
2026-07-22 DAL612 AUA → JFK Jul 22, 21:12 UTCJul 23, 01:34 UTC4h 22m
2026-07-22 DAL613 JFK → AUA Jul 22, 15:04 UTCJul 22, 19:52 UTC4h 48m
2026-07-22 DAL613 JFK → AUA Jul 22, 15:05 UTCJul 22, 19:55 UTC4h 50m
2026-07-21 DAL506 LGA → ATL Jul 21, 22:40 UTCJul 22, 04:30 UTC5h 50m
2026-07-21 DAL506 LGA → ATL Jul 21, 15:30 UTCJul 21, 20:45 UTC5h 15m
2026-07-21 DAL375 ATL → BOS Jul 21, 12:20 UTCJul 21, 13:05 UTC45m
2026-07-20 DAL428 SJC → ATL Jul 20, 21:55 UTCJul 21, 03:10 UTC5h 15m
2026-07-20 DAL428 SJC → ATL Jul 20, 21:51 UTCJul 21, 03:22 UTC5h 31m
2026-07-20 DAL2119 MSP → LAX Jul 20, 16:46 UTCJul 20, 19:57 UTC3h 11m
2026-07-20 DAL2119 MSP → LAX Jul 20, 16:50 UTCJul 20, 20:05 UTC3h 15m
2026-07-20 DAL1138 BOS → MSP Jul 20, 11:35 UTCJul 20, 14:20 UTC2h 45m
2026-07-19 DAL977 - Jul 19, 19:50 UTCJul 20, 00:50 UTC5h 0m
2026-07-19 DAL977 BOS → SFO Jul 19, 11:50 UTCJul 19, 17:35 UTC5h 45m
2026-07-19 DAL696 BOS → TPA Jul 19, 09:15 UTCJul 19, 10:00 UTC45m
2026-07-19 DAL696 BOS → TPA Jul 19, 05:55 UTCJul 19, 09:10 UTC3h 15m
2026-07-18 DAL2036 BOS → NAS Jul 18, 21:05 UTCJul 19, 01:05 UTC4h 0m
2026-07-18 DAL482 JFK → ATL Jul 18, 14:40 UTCJul 18, 19:20 UTC4h 40m
2026-07-17 DAL382 SEA → TPA Jul 17, 22:45 UTCJul 18, 03:20 UTC4h 36m
2026-07-17 DAL2032 SLC → MCO Jul 17, 16:00 UTCJul 17, 20:41 UTC4h 41m
2026-07-17 DAL2032 SLC → MCO Jul 17, 16:00 UTCJul 17, 20:44 UTC4h 45m
2026-07-17 DAL1128 SEA → SLC Jul 17, 12:45 UTCJul 17, 14:24 UTC1h 40m
2026-07-17 DAL324 BOS → SEA Jul 17, 00:14 UTCJul 17, 06:05 UTC5h 50m
2026-07-16 DAL1780 BOS → BOS Jul 16, 13:10 UTCJul 16, 21:50 UTC8h 40m
2026-07-16 DAL473 SEA → BOS Jul 16, 06:55 UTCJul 16, 11:30 UTC4h 35m
2026-07-15 DAL506 - Jul 15, 23:25 UTCJul 16, 04:55 UTC5h 30m
2026-07-15 DAL506 SEA → MIA Jul 15, 15:35 UTCJul 15, 21:15 UTC5h 40m
2026-07-15 DAL375 - Jul 15, 12:25 UTCJul 15, 13:15 UTC50m
2026-07-15 DAL375 LIH → SEA Jul 15, 07:54 UTCJul 15, 13:19 UTC5h 25m
2026-07-14 DAL428 - Jul 14, 21:55 UTCJul 15, 03:10 UTC5h 14m
2026-07-14 DAL2119 MSP → LAX Jul 14, 16:40 UTCJul 14, 19:55 UTC3h 15m
2026-07-14 DAL2119 MSP → LAX Jul 14, 16:39 UTCJul 14, 19:49 UTC3h 10m
2026-07-14 DAL1138 BOS → MSP Jul 14, 11:28 UTCJul 14, 13:58 UTC2h 30m

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 N526DE page for operator, model, and routing details .

Mode-S A69F88 frequently asked

What is Mode-S code A69F88?
A69F88 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N526DE.
Where is Mode-S A69F88 registered?
Mode-S code A69F88 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 A69F88 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A69F88, octal 51517610, decimal 10,919,816.
What flights does A69F88 operate?
Mode-S A69F88 has broadcast 20 distinct callsigns, including DAL428, DAL1961, DAL375, DAL613, DAL1780.