Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0267B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N109DN · AIRBUS A-321 · operated by DELTA AIR LINES INC

Hex
A0267B
Octal
50023173
Decimal
10,495,611
Country
US
Tail
N109DN
Type
A321
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
518
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A0267B.

Country allocation

The ICAO 24-bit address A0267B 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
DAL729 - 7 2026-06-20
DAL2976 Delta Air Lines 7 2026-05-28
DAL2927 - 7 2026-07-17
DAL2603 - 7 2026-07-21
DAL957 Delta Air Lines 6 2026-07-24
DAL753 Delta Air Lines 6 2026-04-17
DAL492 - 6 2026-07-03
DAL371 Delta Air Lines 6 2026-06-04
DAL337 Delta Air Lines 6 2026-07-19
DAL2823 Delta Air Lines 6 2026-04-17
DAL988 Delta Air Lines 5 2026-06-04
DAL746 - 5 2026-07-18
DAL3024 Delta Air Lines 5 2026-07-01
DAL1465 Delta Air Lines 5 2026-06-13
DAL1455 - 5 2026-07-10
DAL1231 - 5 2026-07-17
DAL1164 - 5 2026-07-12
DAL947 - 4 2026-07-19
DAL843 Delta Air Lines 4 2026-07-22
DAL434 - 4 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2121 OMA → MSP Jul 26, 19:10 UTCJul 26, 22:15 UTC3h 5m
2026-07-26 DAL2121 OMA → MSP Jul 26, 14:10 UTCJul 26, 17:20 UTC3h 10m
2026-07-26 DAL2538 MSP → BIL Jul 26, 10:15 UTCJul 26, 12:55 UTC2h 40m
2026-07-26 DAL2932 MSP → RDU Jul 26, 01:35 UTCJul 26, 03:30 UTC1h 55m
2026-07-26 DAL2932 MSP → RDU Jul 26, 01:33 UTCJul 26, 03:29 UTC1h 56m
2026-07-25 DAL2271 CVG → RSW Jul 25, 22:20 UTCJul 26, 00:00 UTC1h 40m
2026-07-25 DAL2271 CVG → RSW Jul 25, 22:19 UTCJul 25, 23:51 UTC1h 32m
2026-07-25 DAL530 ATL → BOS Jul 25, 18:15 UTCJul 25, 20:55 UTC2h 40m
2026-07-25 DAL2650 BOS → BNA Jul 25, 15:20 UTCJul 25, 16:30 UTC1h 10m
2026-07-25 DAL2650 BOS → BNA Jul 25, 12:35 UTCJul 25, 13:40 UTC1h 5m
2026-07-25 DAL2722 SFO → ATL Jul 25, 10:10 UTCJul 25, 10:50 UTC40m
2026-07-25 DAL2276 SLC → SFO Jul 25, 03:35 UTCJul 25, 04:20 UTC45m
2026-07-24 DAL957 JFK → SFO Jul 24, 22:40 UTCJul 25, 01:05 UTC2h 25m
2026-07-24 DAL957 JFK → SFO Jul 24, 17:25 UTCJul 24, 20:00 UTC2h 35m
2026-07-24 DAL957 JFK → SFO Jul 24, 17:21 UTCJul 24, 20:00 UTC2h 39m
2026-07-24 DAL1334 SAN → SEA Jul 24, 14:05 UTCJul 24, 15:30 UTC1h 25m
2026-07-24 DAL1334 SAN → SEA Jul 24, 11:15 UTCJul 24, 12:35 UTC1h 20m
2026-07-24 DAL912 CLT → ATL Jul 24, 06:00 UTCJul 24, 09:10 UTC3h 10m
2026-07-24 DAL2663 BOS → AUS Jul 24, 01:15 UTCJul 24, 02:15 UTC1h 0m
2026-07-24 DAL2663 BOS → AUS Jul 24, 01:14 UTCJul 24, 02:13 UTC59m
2026-07-23 DAL519 BOS → LAX Jul 23, 21:05 UTCJul 23, 23:40 UTC2h 35m
2026-07-23 DAL1179 AUS → BOS Jul 23, 15:25 UTCJul 23, 19:20 UTC3h 55m
2026-07-22 DAL843 SFO → DTW Jul 22, 20:55 UTCJul 23, 00:40 UTC3h 45m
2026-07-22 DAL2235 SJC → SLC Jul 22, 15:55 UTCJul 22, 18:25 UTC2h 30m
2026-07-22 DAL2235 SJC → SLC Jul 22, 11:40 UTCJul 22, 14:15 UTC2h 35m
2026-07-21 DAL1295 PHL → MSP Jul 21, 23:45 UTCJul 22, 01:10 UTC1h 25m
2026-07-21 DAL1295 PHL → MSP Jul 21, 20:50 UTCJul 21, 22:15 UTC1h 25m
2026-07-21 DAL1682 BOS → JFK Jul 21, 17:45 UTCJul 21, 19:25 UTC1h 40m
2026-07-21 DAL1682 BOS → JFK Jul 21, 17:43 UTCJul 21, 19:18 UTC1h 35m
2026-07-21 DAL1682 BOS → JFK Jul 21, 14:50 UTCJul 21, 16:20 UTC1h 30m
2026-07-21 DAL342 MCO → SEA Jul 21, 11:26 UTCJul 21, 13:12 UTC1h 46m
2026-07-21 DAL342 MCO → SEA Jul 21, 11:30 UTCJul 21, 13:20 UTC1h 50m
2026-07-21 DAL2603 - Jul 21, 02:30 UTCJul 21, 03:50 UTC1h 20m
2026-07-20 DAL9965 BOS → DTW Jul 20, 18:50 UTCJul 20, 20:25 UTC1h 35m
2026-07-20 DAL9965 BOS → DTW Jul 20, 18:47 UTCJul 20, 20:25 UTC1h 38m
2026-07-20 DAL1187 - Jul 20, 03:20 UTCJul 20, 04:40 UTC1h 20m
2026-07-19 DAL337 DTW → ORD Jul 19, 23:15 UTCJul 20, 01:20 UTC2h 5m
2026-07-19 DAL337 DTW → ORD Jul 19, 19:40 UTCJul 19, 21:40 UTC2h 0m
2026-07-19 DAL947 - Jul 19, 13:15 UTCJul 19, 16:40 UTC3h 25m
2026-07-18 DAL757 JFK → SFO Jul 18, 23:55 UTCJul 19, 03:25 UTC3h 30m
2026-07-18 DAL1642 MCO → ATL Jul 18, 21:15 UTCJul 18, 22:10 UTC55m
2026-07-18 DAL1642 ATL → MCO Jul 18, 18:45 UTCJul 18, 19:50 UTC1h 5m
2026-07-18 DAL431 DEN → ATL Jul 18, 13:50 UTCJul 18, 16:20 UTC2h 30m
2026-07-18 DAL746 ATL → DEN Jul 18, 02:35 UTCJul 18, 05:03 UTC2h 28m
2026-07-18 DAL746 ATL → DEN Jul 18, 02:35 UTCJul 18, 05:05 UTC2h 31m
2026-07-17 DAL824 - Jul 17, 19:49 UTCJul 17, 22:29 UTC2h 40m
2026-07-17 DAL824 DEN → ATL Jul 17, 19:45 UTCJul 17, 22:29 UTC2h 44m
2026-07-17 DAL2927 MSP → DEN Jul 17, 16:34 UTCJul 17, 18:05 UTC1h 30m
2026-07-17 DAL2927 MSP → DEN Jul 17, 16:32 UTCJul 17, 18:04 UTC1h 32m
2026-07-17 DAL2258 - Jul 17, 13:29 UTCJul 17, 14:50 UTC1h 20m

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 N109DN page for operator, model, and routing details .

Mode-S A0267B frequently asked

What is Mode-S code A0267B?
A0267B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N109DN.
Where is Mode-S A0267B registered?
Mode-S code A0267B 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 A0267B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0267B, octal 50023173, decimal 10,495,611.
What flights does A0267B operate?
Mode-S A0267B has broadcast 20 distinct callsigns, including DAL729, DAL2976, DAL2927, DAL2603, DAL957.