Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3897F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N327NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3897F
Octal
50704577
Decimal
10,717,567
Country
US
Tail
N327NB
Type
A319
Broadcasting now · callsign DAL2497 · 24,800 ft
Flights observed
548
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Current position

A3897F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3897F 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
DAL1438 Delta Air Lines 17 2026-07-21
DAL1472 - 14 2026-06-26
DAL2314 - 12 2026-07-01
DAL2148 Delta Air Lines 11 2026-07-19
DAL1729 Delta Air Lines 11 2026-07-23
DAL3043 Delta Air Lines 10 2026-06-06
DAL2766 Delta Air Lines 10 2026-07-21
DAL788 - 9 2026-07-15
DAL2869 - 9 2026-07-15
DAL1281 Delta Air Lines 9 2026-06-02
DAL2459 Delta Air Lines 8 2026-07-22
DAL2176 - 8 2026-07-20
DAL2147 - 8 2026-06-24
DAL1072 - 8 2026-06-29
DAL2529 - 7 2026-07-14
DAL2002 Delta Air Lines 7 2026-07-21
DAL646 - 6 2026-07-13
DAL521 Delta Air Lines 6 2026-07-20
DAL2729 - 6 2026-07-15
DAL2665 - 6 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2863 SMF → SLC Jul 26, 19:35 UTCJul 26, 21:45 UTC2h 10m
2026-07-26 DAL2888 SFO → SEA Jul 26, 16:00 UTCJul 26, 18:15 UTC2h 15m
2026-07-26 DAL890 CLT → MSP Jul 26, 12:50 UTCJul 26, 14:25 UTC1h 35m
2026-07-26 DAL2992 SDF → ATL Jul 26, 02:10 UTCJul 26, 03:50 UTC1h 40m
2026-07-25 DAL2576 TPA → BOS Jul 25, 21:00 UTCJul 25, 23:00 UTC2h 0m
2026-07-25 DAL2983 MSP → DCA Jul 25, 17:20 UTCJul 25, 19:15 UTC1h 55m
2026-07-25 DAL2834 BOS → LGA Jul 25, 11:50 UTCJul 25, 13:50 UTC2h 0m
2026-07-25 DAL1689 LGA → RSW Jul 25, 01:55 UTCJul 25, 02:45 UTC50m
2026-07-24 DAL1407 BNA → BOS Jul 24, 23:20 UTCJul 25, 00:35 UTC1h 15m
2026-07-24 DAL1407 BNA → BOS Jul 24, 20:40 UTCJul 24, 21:55 UTC1h 15m
2026-07-24 DAL2746 DFW → DTW Jul 24, 16:50 UTCJul 24, 19:05 UTC2h 15m
2026-07-24 DAL2746 DFW → DTW Jul 24, 13:10 UTCJul 24, 15:30 UTC2h 20m
2026-07-24 DAL2567 EWR → DTW Jul 24, 01:15 UTCJul 24, 02:30 UTC1h 15m
2026-07-23 DAL2567 EWR → DTW Jul 23, 22:35 UTCJul 23, 23:45 UTC1h 10m
2026-07-23 DAL1557 MSP → IAH Jul 23, 19:45 UTCJul 23, 20:55 UTC1h 10m
2026-07-23 DAL1557 MSP → IAH Jul 23, 16:55 UTCJul 23, 18:10 UTC1h 15m
2026-07-23 DAL2859 - Jul 23, 14:00 UTCJul 23, 15:35 UTC1h 35m
2026-07-23 DAL2859 - Jul 23, 11:30 UTCJul 23, 12:45 UTC1h 15m
2026-07-23 DAL1096 ATL → YUL Jul 23, 07:50 UTCJul 23, 10:00 UTC2h 10m
2026-07-23 DAL1096 ATL → YUL Jul 23, 07:46 UTCJul 23, 09:58 UTC2h 12m
2026-07-23 DAL1729 SAV → ATL Jul 23, 04:30 UTCJul 23, 06:20 UTC1h 50m
2026-07-23 DAL2551 LAX → PDX Jul 23, 00:55 UTCJul 23, 03:05 UTC2h 10m
2026-07-22 DAL2551 LAX → PDX Jul 22, 22:00 UTCJul 22, 23:50 UTC1h 50m
2026-07-22 DAL2975 HPN → ATL Jul 22, 18:20 UTCJul 22, 20:20 UTC2h 0m
2026-07-22 DAL2975 HPN → ATL Jul 22, 14:05 UTCJul 22, 15:55 UTC1h 50m
2026-07-22 DAL2459 LAX → PDX Jul 22, 03:35 UTCJul 22, 05:25 UTC1h 50m
2026-07-22 DAL2459 LAX → PDX Jul 22, 00:25 UTCJul 22, 02:15 UTC1h 50m
2026-07-21 DAL2766 ALB → ATL Jul 21, 21:00 UTCJul 21, 23:00 UTC2h 0m
2026-07-21 DAL2766 ALB → ATL Jul 21, 17:55 UTCJul 21, 19:45 UTC1h 50m
2026-07-21 DAL2002 DEN → LAX Jul 21, 13:40 UTCJul 21, 15:30 UTC1h 50m
2026-07-21 DAL1729 SAV → ATL Jul 21, 03:45 UTCJul 21, 05:50 UTC2h 5m
2026-07-21 DAL1438 BNA → LGA Jul 21, 01:14 UTCJul 21, 02:09 UTC55m
2026-07-21 DAL1438 BNA → LGA Jul 21, 01:15 UTCJul 21, 02:15 UTC1h 0m
2026-07-20 DAL1438 BNA → LGA Jul 20, 23:05 UTCJul 20, 23:50 UTC45m
2026-07-20 DAL521 SFO → JFK Jul 20, 18:55 UTCJul 20, 21:30 UTC2h 35m
2026-07-20 DAL521 SFO → JFK Jul 20, 14:45 UTCJul 20, 17:30 UTC2h 45m
2026-07-20 DAL2176 - Jul 20, 02:35 UTCJul 20, 04:20 UTC1h 45m
2026-07-19 DAL2176 - Jul 19, 22:20 UTCJul 20, 00:20 UTC2h 0m
2026-07-19 DAL2148 MSP → RDU Jul 19, 18:45 UTCJul 19, 19:45 UTC1h 0m
2026-07-19 DAL2148 MSP → RDU Jul 19, 18:41 UTCJul 19, 20:31 UTC1h 50m
2026-07-19 DAL2148 MSP → RDU Jul 19, 15:05 UTCJul 19, 17:05 UTC2h 0m
2026-07-19 DAL1438 BNA → LGA Jul 19, 01:10 UTCJul 19, 02:05 UTC55m
2026-07-19 DAL1438 BNA → LGA Jul 19, 01:08 UTCJul 19, 02:01 UTC53m
2026-07-18 DAL1438 BNA → LGA Jul 18, 23:05 UTCJul 18, 23:55 UTC50m
2026-07-18 DAL946 PHX → DTW Jul 18, 18:50 UTCJul 18, 21:35 UTC2h 45m
2026-07-18 DAL946 PHX → DTW Jul 18, 14:50 UTCJul 18, 17:20 UTC2h 30m
2026-07-18 DAL2176 DEN → LAX Jul 18, 02:14 UTCJul 18, 04:10 UTC1h 56m
2026-07-18 DAL2176 DEN → LAX Jul 18, 02:13 UTCJul 18, 04:06 UTC1h 53m
2026-07-17 DAL2176 - Jul 17, 22:00 UTCJul 18, 00:04 UTC2h 5m
2026-07-17 DAL2148 - Jul 17, 18:55 UTCJul 17, 20:50 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 N327NB page for operator, model, and routing details .

Mode-S A3897F frequently asked

What is Mode-S code A3897F?
A3897F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N327NB.
Where is Mode-S A3897F registered?
Mode-S code A3897F 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 A3897F broadcasting right now?
Yes. Mode-S A3897F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3897F, octal 50704577, decimal 10,717,567.
What flights does A3897F operate?
Mode-S A3897F has broadcast 20 distinct callsigns, including DAL1438, DAL1472, DAL2314, DAL2148, DAL1729.