Apparatus

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sensors Mode-S transponder

AB1979

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N814NW · AIRBUS A-330-300 · operated by DELTA AIR LINES INC

Hex
AB1979
Octal
52614571
Decimal
11,213,177
Country
US
Tail
N814NW
Type
A333
Broadcasting now · callsign DAL207 · 38,000 ft
Flights observed
278
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Current position

AB1979 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB1979 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
DAL207 - 12 2026-07-14
DAL151 - 11 2026-07-01
DAL150 - 10 2026-07-01
DAL194 - 9 2026-07-12
DAL112 - 9 2026-07-13
DAL73 - 8 2026-06-28
DAL251 - 8 2026-07-12
DAL228 Delta Air Lines 8 2026-07-07
DAL195 - 8 2026-07-11
DAL153 - 8 2026-07-08
DAL134 - 8 2026-06-27
DAL277 - 7 2026-07-13
DAL250 - 7 2026-07-10
DAL113 - 7 2026-07-10
DAL46 - 6 2026-07-06
DAL276 - 6 2026-07-13
DAL263 Delta Air Lines 6 2026-04-27
DAL262 Delta Air Lines 6 2026-04-26
DAL231 Delta Air Lines 6 2026-05-02
DAL206 - 6 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL207 FCO → DTW Jul 14, 07:25 UTCJul 14, 16:39 UTC9h 14m
2026-07-14 DAL207 - Jul 14, 07:25 UTCJul 14, 10:20 UTC2h 55m
2026-07-13 DAL112 - Jul 13, 21:00 UTCJul 13, 22:20 UTC1h 20m
2026-07-13 DAL112 BOS → FCO Jul 13, 20:56 UTCJul 14, 04:26 UTC7h 30m
2026-07-13 DAL277 MXP → BOS Jul 13, 10:50 UTCJul 13, 18:35 UTC7h 45m
2026-07-13 DAL276 BOS → MXP Jul 13, 01:01 UTCJul 13, 08:10 UTC7h 10m
2026-07-12 DAL251 - Jul 12, 14:20 UTCJul 12, 16:10 UTC1h 50m
2026-07-12 DAL251 BCN → BOS Jul 12, 14:18 UTCJul 12, 22:03 UTC7h 45m
2026-07-12 DAL194 ATL → BCN Jul 12, 02:32 UTCJul 12, 11:00 UTC8h 28m
2026-07-12 DAL194 - Jul 12, 02:35 UTCJul 12, 05:25 UTC2h 50m
2026-07-11 DAL195 BCN → ATL Jul 11, 10:10 UTCJul 11, 20:35 UTC10h 25m
2026-07-10 DAL250 BOS → BCN Jul 10, 23:45 UTCJul 11, 06:35 UTC6h 50m
2026-07-10 DAL113 - Jul 10, 11:35 UTCJul 10, 20:05 UTC8h 30m
2026-07-10 DAL113 FCO → BOS Jul 10, 11:31 UTCJul 10, 20:06 UTC8h 35m
2026-07-10 DAL206 - Jul 10, 00:20 UTCJul 10, 08:55 UTC8h 35m
2026-07-09 DAL229 - Jul 9, 08:45 UTCJul 9, 17:05 UTC8h 20m
2026-07-08 DAL152 - Jul 8, 21:40 UTCJul 9, 05:20 UTC7h 40m
2026-07-08 DAL153 - Jul 8, 09:25 UTCJul 8, 17:55 UTC8h 30m
2026-07-08 DAL153 CDG → MSP Jul 8, 09:23 UTCJul 8, 17:54 UTC8h 31m
2026-07-07 DAL228 CVG → CDG Jul 7, 23:15 UTCJul 8, 06:55 UTC7h 40m
2026-07-07 DAL228 CVG → CDG Jul 7, 23:15 UTCJul 8, 06:46 UTC7h 31m
2026-07-07 DAL135 AMS → DTW Jul 7, 09:15 UTCJul 7, 17:10 UTC7h 55m
2026-07-06 DAL46 JFK → AMS Jul 6, 22:58 UTCJul 7, 05:22 UTC6h 24m
2026-07-06 DAL46 - Jul 6, 23:00 UTCJul 7, 00:40 UTC1h 40m
2026-07-06 DAL203 ATH → JFK Jul 6, 07:25 UTCJul 6, 17:50 UTC10h 25m
2026-07-06 DAL203 ATH → JFK Jul 6, 07:24 UTCJul 6, 17:48 UTC10h 24m
2026-07-05 DAL202 JFK → ATH Jul 5, 20:35 UTCJul 6, 05:10 UTC8h 35m
2026-07-05 DAL47 - Jul 5, 08:55 UTCJul 5, 16:35 UTC7h 40m
2026-07-04 DAL72 ATL → AMS Jul 4, 21:25 UTCJul 5, 05:15 UTC7h 50m
2026-07-01 DAL150 LIM → ATL Jul 1, 11:48 UTCJul 1, 18:23 UTC6h 35m
2026-07-01 DAL151 ATL → LIM Jul 1, 03:08 UTCJul 1, 09:20 UTC6h 12m
2026-07-01 DAL151 - Jul 1, 03:10 UTCJul 1, 06:05 UTC2h 55m
2026-06-30 DAL150 - Jun 30, 08:45 UTCJun 30, 11:50 UTC3h 5m
2026-06-29 DAL151 - Jun 29, 20:49 UTCJun 29, 23:54 UTC3h 5m
2026-06-29 DAL151 ATL → LIM Jun 29, 20:47 UTCJun 30, 03:10 UTC6h 23m
2026-06-28 DAL73 AMS → ATL Jun 28, 08:39 UTCJun 28, 17:39 UTC9h 0m
2026-06-27 DAL134 - Jun 27, 22:25 UTCJun 28, 05:29 UTC7h 5m
2026-06-27 DAL134 DTW → AMS Jun 27, 22:22 UTCJun 28, 05:28 UTC7h 6m
2026-06-27 DAL229 - Jun 27, 08:55 UTCJun 27, 16:49 UTC7h 55m
2026-06-26 DAL152 JFK → FCO Jun 26, 21:50 UTCJun 27, 00:14 UTC2h 25m
2026-06-26 DAL152 JFK → FCO Jun 26, 21:49 UTCJun 27, 05:55 UTC8h 6m
2026-06-26 DAL153 - Jun 26, 09:30 UTCJun 26, 17:50 UTC8h 20m
2026-06-25 DAL228 CVG → CDG Jun 25, 23:05 UTCJun 26, 06:15 UTC7h 10m
2026-06-25 DAL228 CVG → CDG Jun 25, 23:03 UTCJun 26, 06:12 UTC7h 9m
2026-06-25 DAL229 - Jun 25, 09:10 UTCJun 25, 17:14 UTC8h 5m
2026-06-24 DAL152 JFK → FCO Jun 24, 21:36 UTCJun 25, 05:27 UTC7h 51m
2026-06-24 DAL152 JFK → FCO Jun 24, 21:40 UTCJun 25, 04:14 UTC6h 35m
2026-06-24 DAL153 - Jun 24, 09:19 UTCJun 24, 12:14 UTC2h 55m
2026-06-24 DAL153 CDG → MSP Jun 24, 09:15 UTCJun 24, 17:37 UTC8h 22m
2026-06-24 DAL153 CDG → MSP Jun 24, 09:15 UTCJun 24, 17:34 UTC8h 19m

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 N814NW page for operator, model, and routing details .

Mode-S AB1979 frequently asked

What is Mode-S code AB1979?
AB1979 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N814NW.
Where is Mode-S AB1979 registered?
Mode-S code AB1979 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 AB1979 broadcasting right now?
Yes. Mode-S AB1979 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB1979, octal 52614571, decimal 11,213,177.
What flights does AB1979 operate?
Mode-S AB1979 has broadcast 20 distinct callsigns, including DAL207, DAL151, DAL150, DAL194, DAL112.