sensors Mode-S transponder

A38211

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N325NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A38211
Octal
50701021
Decimal
10,715,665
Country
US
Tail
N325NB
Type
A319
No current signal · last broadcast 5h ago
Flights observed
272
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A38211.

Country allocation

The ICAO 24-bit address A38211 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
DAL2168 - 14 2026-06-11
DAL2147 Delta Air Lines 12 2026-06-01
DAL1281 Delta Air Lines 12 2026-06-09
DAL950 - 10 2026-06-15
DAL2902 Delta Air Lines 10 2026-05-05
DAL2064 Delta Air Lines 10 2026-06-08
DAL1023 Delta Air Lines 10 2026-06-08
DAL2632 Delta Air Lines 9 2026-05-01
DAL2953 Delta Air Lines 8 2026-06-03
DAL1472 Delta Air Lines 8 2026-05-26
DAL1929 Delta Air Lines 7 2026-06-12
DAL1695 Delta Air Lines 7 2026-06-09
DAL2659 Delta Air Lines 6 2026-06-01
DAL2818 Delta Air Lines 5 2026-05-18
DAL2629 - 5 2026-06-14
DAL2597 Delta Air Lines 5 2026-06-14
DAL2435 Delta Air Lines 5 2026-06-03
DAL2372 Delta Air Lines 5 2026-05-18
DAL1866 Delta Air Lines 5 2026-06-12
DAL611 Delta Air Lines 4 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-15 DAL950 DCA → ATL Jun 15, 02:55 UTCJun 15, 04:15 UTC1h 20m
2026-06-14 DAL950 ATL → DCA Jun 14, 21:35 UTCJun 14, 23:05 UTC1h 30m
2026-06-14 DAL2629 YUL → ATL Jun 14, 17:00 UTCJun 14, 19:35 UTC2h 35m
2026-06-14 DAL2597 ATL → YUL Jun 14, 13:15 UTCJun 14, 14:15 UTC1h 0m
2026-06-14 DAL2597 ATL → YUL Jun 14, 13:13 UTCJun 14, 15:13 UTC2h 0m
2026-06-13 DAL2314 - Jun 13, 22:00 UTCJun 14, 00:05 UTC2h 5m
2026-06-13 DAL2314 ATL → PVD Jun 13, 18:10 UTCJun 13, 20:05 UTC1h 55m
2026-06-13 DAL1237 MSP → FLL Jun 13, 13:30 UTCJun 13, 15:25 UTC1h 55m
2026-06-13 DAL1237 MSP → FLL Jun 13, 13:26 UTCJun 13, 15:21 UTC1h 55m
2026-06-12 DAL2615 ATL → FSD Jun 12, 22:30 UTCJun 13, 00:40 UTC2h 10m
2026-06-12 DAL1866 MTY → ATL Jun 12, 18:25 UTCJun 12, 20:45 UTC2h 20m
2026-06-12 DAL1929 ATL → MTY Jun 12, 14:17 UTCJun 12, 16:38 UTC2h 21m
2026-06-12 DAL1929 ATL → MTY Jun 12, 14:20 UTCJun 12, 16:45 UTC2h 25m
2026-06-12 DAL330 DFW → JFK Jun 12, 11:40 UTCJun 12, 12:50 UTC1h 10m
2026-06-12 DAL330 DFW → JFK Jun 12, 11:36 UTCJun 12, 12:48 UTC1h 12m
2026-06-12 DAL537 ATL → DCA Jun 12, 02:55 UTCJun 12, 04:25 UTC1h 30m
2026-06-11 DAL2168 - Jun 11, 22:40 UTCJun 12, 00:15 UTC1h 35m
2026-06-11 DAL2168 - Jun 11, 19:50 UTCJun 11, 21:10 UTC1h 20m
2026-06-11 DAL1444 PHL → ATL Jun 11, 17:00 UTCJun 11, 18:15 UTC1h 15m
2026-06-11 DAL1444 PHL → ATL Jun 11, 14:35 UTCJun 11, 15:50 UTC1h 15m
2026-06-11 DAL1136 MIA → LGA Jun 11, 11:30 UTCJun 11, 13:20 UTC1h 50m
2026-06-10 DAL2707 LGA → ATL Jun 10, 23:40 UTCJun 11, 02:20 UTC2h 40m
2026-06-10 DAL1866 MTY → ATL Jun 10, 18:20 UTCJun 10, 20:40 UTC2h 20m
2026-06-10 DAL1929 ATL → MTY Jun 10, 14:25 UTCJun 10, 16:50 UTC2h 25m
2026-06-10 DAL1285 MCO → SLC Jun 10, 11:05 UTCJun 10, 12:40 UTC1h 35m
2026-06-10 DAL1076 JFK → MCO Jun 10, 01:30 UTCJun 10, 03:15 UTC1h 45m
2026-06-09 DAL1695 TPA → LGA Jun 9, 22:10 UTCJun 9, 23:30 UTC1h 20m
2026-06-09 DAL1695 TPA → LGA Jun 9, 19:15 UTCJun 9, 20:40 UTC1h 25m
2026-06-09 DAL1281 MSY → JFK Jun 9, 16:45 UTCJun 9, 17:40 UTC55m
2026-06-09 DAL1281 MSY → JFK Jun 9, 13:15 UTCJun 9, 14:35 UTC1h 20m
2026-06-08 DAL950 ATL → SFO Jun 8, 23:55 UTCJun 9, 01:10 UTC1h 15m
2026-06-08 DAL950 ATL → SFO Jun 8, 21:10 UTCJun 8, 22:45 UTC1h 35m
2026-06-08 DAL2629 ATL → ILM Jun 8, 17:05 UTCJun 8, 19:10 UTC2h 5m
2026-06-08 DAL2629 ATL → ILM Jun 8, 17:03 UTCJun 8, 19:15 UTC2h 12m
2026-06-08 DAL2597 ATL → YUL Jun 8, 13:30 UTCJun 8, 15:45 UTC2h 15m
2026-06-08 DAL2597 ATL → YUL Jun 8, 13:26 UTCJun 8, 15:37 UTC2h 11m
2026-06-08 DAL1023 ALB → ATL Jun 8, 10:10 UTCJun 8, 12:05 UTC1h 55m
2026-06-08 DAL2064 LGA → IAH Jun 8, 02:00 UTCJun 8, 02:15 UTC15m
2026-06-08 DAL2064 LGA → IAH Jun 8, 01:59 UTCJun 8, 03:59 UTC2h 0m
2026-06-07 DAL2168 LGA → ATL Jun 7, 22:35 UTCJun 8, 00:05 UTC1h 30m
2026-06-07 DAL2168 LGA → ATL Jun 7, 19:35 UTCJun 7, 20:55 UTC1h 20m
2026-06-07 DAL1649 SLC → SEA Jun 7, 16:25 UTCJun 7, 18:05 UTC1h 40m
2026-06-07 DAL1649 SLC → SEA Jun 7, 13:05 UTCJun 7, 14:40 UTC1h 35m
2026-06-06 DAL2168 LGA → ATL Jun 6, 22:25 UTCJun 7, 00:00 UTC1h 35m
2026-06-06 DAL2168 LGA → ATL Jun 6, 19:34 UTCJun 6, 20:55 UTC1h 20m
2026-06-06 DAL1281 MSY → JFK Jun 6, 15:59 UTCJun 6, 17:34 UTC1h 35m
2026-06-06 DAL1281 MSY → JFK Jun 6, 13:05 UTCJun 6, 14:25 UTC1h 20m
2026-06-06 DAL1556 RSW → LGA Jun 6, 02:10 UTCJun 6, 02:45 UTC35m
2026-06-06 DAL1556 RSW → LGA Jun 6, 02:04 UTCJun 6, 02:45 UTC41m
2026-06-05 DAL2821 CAE → ATL Jun 5, 23:05 UTCJun 6, 01:00 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 N325NB page for operator, model, and routing details .

Mode-S A38211 frequently asked

What is Mode-S code A38211?
A38211 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N325NB.
Where is Mode-S A38211 registered?
Mode-S code A38211 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 A38211 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A38211, octal 50701021, decimal 10,715,665.
What flights does A38211 operate?
Mode-S A38211 has broadcast 20 distinct callsigns, including DAL2168, DAL2147, DAL1281, DAL950, DAL2902.