Apparatus

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sensors Mode-S transponder

AB120B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N812NW · AIRBUS A-330-300 · operated by DELTA AIR LINES INC

Hex
AB120B
Octal
52611013
Decimal
11,211,275
Country
US
Tail
N812NW
Type
A333
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
299
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AB120B.

Country allocation

The ICAO 24-bit address AB120B 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
DAL85 Delta Air Lines 14 2026-07-24
DAL84 Delta Air Lines 14 2026-07-24
DAL276 Delta Air Lines 9 2026-07-26
DAL251 Delta Air Lines 9 2026-07-25
DAL277 Delta Air Lines 8 2026-07-26
DAL231 Delta Air Lines 8 2026-05-25
DAL230 Delta Air Lines 8 2026-05-24
DAL194 Delta Air Lines 8 2026-07-25
DAL128 Delta Air Lines 8 2026-05-22
DAL113 - 8 2026-07-12
DAL73 - 7 2026-06-27
DAL207 - 7 2026-07-11
DAL129 Delta Air Lines 7 2026-05-23
DAL127 Delta Air Lines 7 2026-06-17
DAL112 Delta Air Lines 7 2026-07-26
DAL72 - 6 2026-07-02
DAL46 - 6 2026-06-17
DAL287 Delta Air Lines 6 2026-04-17
DAL203 Delta Air Lines 6 2026-04-29
DAL193 Delta Air Lines 6 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL112 BOS → FCO Jul 26, 21:10 UTCJul 26, 22:30 UTC1h 20m
2026-07-26 DAL277 HNL → KIX Jul 26, 10:10 UTCJul 26, 18:05 UTC7h 55m
2026-07-26 DAL276 HND → DTW Jul 26, 00:49 UTCJul 26, 07:46 UTC6h 57m
2026-07-26 DAL276 HND → DTW Jul 26, 00:50 UTCJul 26, 02:10 UTC1h 20m
2026-07-25 DAL251 NAS → MIA Jul 25, 13:35 UTCJul 25, 21:05 UTC7h 30m
2026-07-25 DAL194 ATL → BCN Jul 25, 02:25 UTCJul 25, 11:10 UTC8h 45m
2026-07-25 DAL194 ATL → BCN Jul 25, 02:24 UTCJul 25, 11:06 UTC8h 42m
2026-07-24 DAL85 CDG → ATL Jul 24, 14:20 UTCJul 24, 23:00 UTC8h 40m
2026-07-24 DAL84 ATL → CDG Jul 24, 02:15 UTCJul 24, 10:10 UTC7h 55m
2026-07-23 DAL85 CDG → ATL Jul 23, 14:05 UTCJul 23, 22:45 UTC8h 40m
2026-07-23 DAL85 CDG → ATL Jul 23, 14:00 UTCJul 23, 22:51 UTC8h 51m
2026-07-23 DAL84 ATL → CDG Jul 23, 02:15 UTCJul 23, 10:25 UTC8h 10m
2026-07-22 DAL85 CDG → ATL Jul 22, 14:15 UTCJul 22, 23:10 UTC8h 55m
2026-07-22 DAL84 ATL → CDG Jul 22, 02:20 UTCJul 22, 04:15 UTC1h 55m
2026-07-21 DAL193 VCE → ATL Jul 21, 09:30 UTCJul 21, 19:40 UTC10h 10m
2026-07-20 DAL192 - Jul 20, 22:00 UTCJul 21, 07:00 UTC8h 59m
2026-07-20 DAL192 ATL → VCE Jul 20, 22:00 UTCJul 21, 07:03 UTC9h 3m
2026-07-19 DAL104 GRU → ATL Jul 19, 02:05 UTCJul 19, 11:00 UTC8h 55m
2026-07-18 DAL105 ATL → GRU Jul 18, 00:10 UTCJul 18, 09:40 UTC9h 31m
2026-07-17 DAL193 VCE → ATL Jul 17, 10:55 UTCJul 17, 21:10 UTC10h 15m
2026-07-16 DAL192 ATL → VCE Jul 16, 23:35 UTCJul 17, 08:40 UTC9h 5m
2026-07-15 DAL85 - Jul 15, 14:20 UTCJul 15, 23:15 UTC8h 55m
2026-07-15 DAL84 ATL → CDG Jul 15, 02:05 UTCJul 15, 10:25 UTC8h 20m
2026-07-14 DAL193 - Jul 14, 11:30 UTCJul 14, 12:20 UTC50m
2026-07-14 DAL193 - Jul 14, 09:40 UTCJul 14, 11:25 UTC1h 45m
2026-07-14 DAL193 VCE → ATL Jul 14, 09:37 UTCJul 14, 19:23 UTC9h 46m
2026-07-14 DAL193 VCE → ATL Jul 14, 09:37 UTCJul 14, 19:21 UTC9h 44m
2026-07-13 DAL192 - Jul 13, 22:05 UTCJul 14, 06:45 UTC8h 40m
2026-07-13 DAL192 ATL → VCE Jul 13, 22:03 UTCJul 14, 07:02 UTC8h 59m
2026-07-13 DAL195 - Jul 13, 09:15 UTCJul 13, 10:45 UTC1h 30m
2026-07-13 DAL195 BCN → ATL Jul 13, 09:12 UTCJul 13, 18:40 UTC9h 28m
2026-07-12 DAL250 BOS → BCN Jul 12, 23:50 UTCJul 13, 06:40 UTC6h 50m
2026-07-12 DAL113 - Jul 12, 12:15 UTCJul 12, 12:45 UTC30m
2026-07-12 DAL113 FCO → BOS Jul 12, 12:14 UTCJul 12, 20:42 UTC8h 28m
2026-07-12 DAL113 FCO → BOS Jul 12, 12:14 UTCJul 12, 20:46 UTC8h 32m
2026-07-12 DAL206 - Jul 12, 00:20 UTCJul 12, 09:00 UTC8h 40m
2026-07-11 DAL207 - Jul 11, 07:25 UTCJul 11, 16:45 UTC9h 20m
2026-07-10 DAL112 BOS → FCO Jul 10, 21:22 UTCJul 11, 04:53 UTC7h 31m
2026-07-10 DAL112 - Jul 10, 21:25 UTCJul 11, 04:45 UTC7h 20m
2026-07-10 DAL277 NCE → BOS Jul 10, 10:05 UTCJul 10, 18:15 UTC8h 10m
2026-07-10 DAL277 NCE → BOS Jul 10, 10:00 UTCJul 10, 18:14 UTC8h 14m
2026-07-10 DAL276 BOS → NCE Jul 10, 00:20 UTCJul 10, 07:25 UTC7h 5m
2026-07-10 DAL276 BOS → NCE Jul 10, 00:20 UTCJul 10, 07:20 UTC7h 0m
2026-07-09 DAL251 BOS → BOS Jul 9, 21:35 UTCJul 9, 21:40 UTC5m
2026-07-09 DAL251 BCN → BOS Jul 9, 13:35 UTCJul 9, 21:05 UTC7h 30m
2026-07-09 DAL194 ATL → BCN Jul 9, 02:15 UTCJul 9, 10:40 UTC8h 25m
2026-07-07 DAL9895 - Jul 7, 15:50 UTCJul 8, 00:55 UTC9h 5m
2026-07-07 DAL9895 CDG → ATL Jul 7, 15:45 UTCJul 8, 00:50 UTC9h 5m
2026-07-06 DAL228 CVG → CDG Jul 6, 23:05 UTCJul 7, 06:25 UTC7h 20m
2026-07-06 DAL228 CVG → CDG Jul 6, 23:01 UTCJul 7, 06:19 UTC7h 18m

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 N812NW page for operator, model, and routing details .

Mode-S AB120B frequently asked

What is Mode-S code AB120B?
AB120B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N812NW.
Where is Mode-S AB120B registered?
Mode-S code AB120B 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 AB120B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB120B, octal 52611013, decimal 11,211,275.
What flights does AB120B operate?
Mode-S AB120B has broadcast 20 distinct callsigns, including DAL85, DAL84, DAL276, DAL251, DAL277.