Apparatus

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sensors Mode-S transponder

A4995F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N396DA · BOEING 737-800 · operated by DELTA AIR LINES INC

Hex
A4995F
Octal
51114537
Decimal
10,787,167
Country
US
Tail
N396DA
Type
B738
No current signal · last broadcast 3h ago
Flights observed
433
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A4995F.

Country allocation

The ICAO 24-bit address A4995F 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
DAL1680 Delta Air Lines 10 2026-04-15
DAL2259 - 9 2026-06-23
DAL1595 - 9 2026-06-25
DAL2260 Delta Air Lines 8 2026-06-24
DAL3095 Delta Air Lines 6 2026-05-03
DAL1016 - 6 2026-06-29
DAL585 - 5 2026-07-01
DAL3054 Delta Air Lines 5 2026-04-27
DAL2508 Delta Air Lines 5 2026-05-20
DAL2290 Delta Air Lines 5 2026-06-05
DAL1401 - 5 2026-07-13
DAL1055 Delta Air Lines 5 2026-05-01
DAL928 Delta Air Lines 4 2026-05-20
DAL925 Delta Air Lines 4 2026-05-21
DAL687 Delta Air Lines 4 2026-05-04
DAL588 - 4 2026-07-06
DAL2988 Delta Air Lines 4 2026-04-21
DAL2978 Delta Air Lines 4 2026-05-04
DAL2922 Delta Air Lines 4 2026-05-14
DAL2641 Delta Air Lines 4 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL661 - Jul 13, 23:55 UTCJul 14, 02:10 UTC2h 15m
2026-07-13 DAL661 CVG → FLL Jul 13, 20:10 UTCJul 13, 22:25 UTC2h 15m
2026-07-13 DAL2774 - Jul 13, 16:45 UTCJul 13, 18:40 UTC1h 55m
2026-07-13 DAL2774 FLL → CVG Jul 13, 16:41 UTCJul 13, 18:42 UTC2h 1m
2026-07-13 DAL1401 - Jul 13, 13:25 UTCJul 13, 15:30 UTC2h 5m
2026-07-13 DAL1401 - Jul 13, 12:45 UTCJul 13, 13:20 UTC35m
2026-07-13 DAL1401 BOS → FLL Jul 13, 12:45 UTCJul 13, 15:25 UTC2h 40m
2026-07-13 DAL522 - Jul 13, 01:25 UTCJul 13, 04:05 UTC2h 40m
2026-07-13 DAL522 FLL → BOS Jul 13, 01:21 UTCJul 13, 04:04 UTC2h 43m
2026-07-12 DAL2321 LGA → FLL Jul 12, 21:00 UTCJul 12, 23:40 UTC2h 40m
2026-07-12 DAL873 - Jul 12, 15:50 UTCJul 12, 18:50 UTC3h 0m
2026-07-11 DAL846 LGA → DFW Jul 11, 21:50 UTCJul 12, 01:10 UTC3h 20m
2026-07-11 DAL379 RSW → LGA Jul 11, 17:20 UTCJul 11, 19:50 UTC2h 30m
2026-07-11 DAL379 LGA → RSW Jul 11, 13:15 UTCJul 11, 15:45 UTC2h 30m
2026-07-11 DAL701 - Jul 11, 00:25 UTCJul 11, 03:05 UTC2h 40m
2026-07-11 DAL701 FLL → LGA Jul 11, 00:25 UTCJul 11, 02:59 UTC2h 34m
2026-07-10 DAL2196 BOS → FLL Jul 10, 19:50 UTCJul 10, 22:45 UTC2h 55m
2026-07-10 DAL1471 - Jul 10, 15:30 UTCJul 10, 18:05 UTC2h 35m
2026-07-10 DAL2776 - Jul 10, 12:05 UTCJul 10, 14:05 UTC2h 0m
2026-07-10 DAL2824 MCO → CVG Jul 10, 00:15 UTCJul 10, 02:05 UTC1h 50m
2026-07-09 DAL2824 - Jul 9, 20:05 UTCJul 9, 21:50 UTC1h 45m
2026-07-09 DAL2273 SLC → CVG Jul 9, 15:55 UTCJul 9, 18:40 UTC2h 45m
2026-07-09 DAL2897 - Jul 9, 12:20 UTCJul 9, 14:30 UTC2h 10m
2026-07-09 DAL2993 - Jul 9, 03:00 UTCJul 9, 04:55 UTC1h 55m
2026-07-09 DAL1738 PHX → SLC Jul 9, 00:15 UTCJul 9, 01:25 UTC1h 10m
2026-07-09 DAL1738 PHX → SLC Jul 9, 00:10 UTCJul 9, 01:22 UTC1h 12m
2026-07-08 DAL1738 - Jul 8, 21:35 UTCJul 8, 22:45 UTC1h 10m
2026-07-08 DAL678 - Jul 8, 16:35 UTCJul 8, 19:50 UTC3h 15m
2026-07-08 DAL678 CVG → SLC Jul 8, 16:32 UTCJul 8, 19:43 UTC3h 11m
2026-07-08 DAL3160 - Jul 8, 14:05 UTCJul 8, 15:00 UTC55m
2026-07-08 DAL3105 - Jul 8, 10:00 UTCJul 8, 11:05 UTC1h 5m
2026-07-08 DAL3120 ATL → IND Jul 8, 01:20 UTCJul 8, 02:20 UTC1h 0m
2026-07-07 DAL1477 - Jul 7, 20:35 UTCJul 7, 22:00 UTC1h 25m
2026-07-07 DAL1477 ATL → ORD Jul 7, 17:10 UTCJul 7, 18:45 UTC1h 35m
2026-07-06 DAL587 - Jul 6, 20:30 UTCJul 6, 23:15 UTC2h 45m
2026-07-06 DAL588 ATL → MEX Jul 6, 14:39 UTCJul 6, 17:41 UTC3h 2m
2026-07-06 DAL588 ATL → MEX Jul 6, 14:40 UTCJul 6, 17:35 UTC2h 55m
2026-07-06 DAL2909 - Jul 6, 11:05 UTCJul 6, 12:10 UTC1h 5m
2026-07-06 DAL1459 ATL → CMH Jul 6, 04:00 UTCJul 6, 05:00 UTC1h 0m
2026-07-06 DAL2740 DEN → SEA Jul 6, 01:00 UTCJul 6, 02:25 UTC1h 25m
2026-07-05 DAL2738 ATL → ORD Jul 5, 20:05 UTCJul 5, 22:10 UTC2h 5m
2026-07-05 DAL1184 - Jul 5, 16:05 UTCJul 5, 18:05 UTC2h 0m
2026-07-05 DAL1184 OKC → ATL Jul 5, 16:03 UTCJul 5, 18:03 UTC2h 0m
2026-07-05 DAL2423 ATL → OKC Jul 5, 03:05 UTCJul 5, 05:15 UTC2h 10m
2026-07-05 DAL2423 ATL → OKC Jul 5, 03:03 UTCJul 5, 05:08 UTC2h 5m
2026-07-04 DAL1753 - Jul 4, 21:00 UTCJul 5, 00:30 UTC3h 30m
2026-07-04 DAL1986 - Jul 4, 15:35 UTCJul 4, 18:55 UTC3h 20m
2026-07-04 DAL1986 ATL → SKB Jul 4, 15:34 UTCJul 4, 19:11 UTC3h 37m
2026-07-04 DAL2518 - Jul 4, 11:30 UTCJul 4, 13:05 UTC1h 35m
2026-07-04 DAL2626 ATL → CID Jul 4, 02:15 UTCJul 4, 03:55 UTC1h 40m

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 N396DA page for operator, model, and routing details .

Mode-S A4995F frequently asked

What is Mode-S code A4995F?
A4995F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N396DA.
Where is Mode-S A4995F registered?
Mode-S code A4995F 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 A4995F broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4995F, octal 51114537, decimal 10,787,167.
What flights does A4995F operate?
Mode-S A4995F has broadcast 20 distinct callsigns, including DAL1680, DAL2259, DAL1595, DAL2260, DAL3095.