Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB1D28

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N815NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AB1D28
Octal
52616450
Decimal
11,214,120
Country
US
Tail
N815NN
Type
B738
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
559
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S AB1D28.

Country allocation

The ICAO 24-bit address AB1D28 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
AAL2899 - 6 2026-06-18
AAL1989 - 6 2026-07-21
AAL3052 American Airlines 5 2026-06-09
AAL2047 - 5 2026-07-15
AAL1939 American Airlines 5 2026-07-21
AAL1897 - 5 2026-06-16
AAL1035 American Airlines 5 2026-05-16
AAL413 American Airlines 4 2026-06-07
AAL3294 American Airlines 4 2026-05-16
AAL2711 American Airlines 4 2026-05-05
AAL2265 - 4 2026-07-16
AAL2225 American Airlines 4 2026-04-16
AAL2134 American Airlines 4 2026-05-13
AAL1811 American Airlines 4 2026-07-26
AAL1781 American Airlines 4 2026-04-15
AAL1600 American Airlines 4 2026-05-31
AAL1593 American Airlines 4 2026-05-31
AAL1523 American Airlines 4 2026-06-16
AAL1212 American Airlines 4 2026-07-20
AAL584 - 3 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1786 EWR → CLT Jul 26, 20:30 UTCJul 26, 22:00 UTC1h 30m
2026-07-26 AAL2049 SJC → PHX Jul 26, 15:35 UTCJul 26, 18:40 UTC3h 5m
2026-07-26 AAL1029 DCA → ORD Jul 26, 12:25 UTCJul 26, 13:45 UTC1h 20m
2026-07-26 AAL1811 DCA → PVD Jul 26, 00:40 UTCJul 26, 02:00 UTC1h 20m
2026-07-26 AAL1811 DCA → PVD Jul 26, 00:39 UTCJul 26, 01:56 UTC1h 17m
2026-07-25 AAL1811 DCA → PVD Jul 25, 22:05 UTCJul 25, 23:25 UTC1h 20m
2026-07-25 AAL3280 DFW → ELP Jul 25, 18:40 UTCJul 25, 19:55 UTC1h 15m
2026-07-25 AAL3280 DFW → ELP Jul 25, 18:35 UTCJul 25, 19:54 UTC1h 19m
2026-07-25 AAL2933 EWR → MIA Jul 25, 13:15 UTCJul 25, 16:35 UTC3h 20m
2026-07-25 AAL1317 CMH → PHL Jul 25, 04:30 UTCJul 25, 08:25 UTC3h 55m
2026-07-25 AAL1317 CMH → PHL Jul 25, 04:28 UTCJul 25, 08:22 UTC3h 54m
2026-07-24 AAL2627 OKC → DFW Jul 24, 22:45 UTCJul 25, 02:12 UTC3h 27m
2026-07-24 AAL2627 OKC → DFW Jul 24, 22:50 UTCJul 25, 02:15 UTC3h 25m
2026-07-24 AAL2627 OKC → DFW Jul 24, 17:10 UTCJul 24, 21:10 UTC4h 0m
2026-07-24 AAL3008 ORD → LAX Jul 24, 12:24 UTCJul 24, 15:32 UTC3h 8m
2026-07-24 AAL3008 ORD → LAX Jul 24, 12:25 UTCJul 24, 15:25 UTC3h 0m
2026-07-24 AAL1968 PHX → PHL Jul 24, 01:30 UTCJul 24, 05:25 UTC3h 55m
2026-07-23 AAL1479 JFK → MIA Jul 23, 20:20 UTCJul 23, 22:55 UTC2h 35m
2026-07-23 AAL1766 DFW → JFK Jul 23, 15:15 UTCJul 23, 18:20 UTC3h 5m
2026-07-23 AAL1766 DFW → JFK Jul 23, 15:12 UTCJul 23, 18:17 UTC3h 5m
2026-07-23 AAL1091 CLT → PHL Jul 23, 12:25 UTCJul 23, 13:40 UTC1h 15m
2026-07-23 AAL1607 PHX → PHL Jul 23, 04:30 UTCJul 23, 05:25 UTC55m
2026-07-23 AAL1626 LGA → DFW Jul 23, 00:10 UTCJul 23, 03:00 UTC2h 50m
2026-07-22 AAL1634 - Jul 22, 20:55 UTCJul 22, 22:55 UTC2h 0m
2026-07-22 AAL1270 PUJ → MIA Jul 22, 16:31 UTCJul 22, 18:34 UTC2h 3m
2026-07-22 AAL1270 - Jul 22, 13:15 UTCJul 22, 18:35 UTC5h 20m
2026-07-22 AAL1614 SFO → DFW Jul 22, 00:50 UTCJul 22, 02:30 UTC1h 40m
2026-07-21 AAL1614 SFO → DFW Jul 21, 21:15 UTCJul 21, 23:20 UTC2h 5m
2026-07-21 AAL846 BOS → CLT Jul 21, 18:35 UTCJul 21, 19:50 UTC1h 15m
2026-07-21 AAL846 BOS → CLT Jul 21, 15:45 UTCJul 21, 16:45 UTC1h 0m
2026-07-21 AAL1989 - Jul 21, 13:30 UTCJul 21, 14:20 UTC50m
2026-07-21 AAL1989 - Jul 21, 11:15 UTCJul 21, 12:10 UTC55m
2026-07-21 AAL1939 BOS → ORD Jul 21, 00:40 UTCJul 21, 01:40 UTC1h 0m
2026-07-21 AAL1939 BOS → ORD Jul 21, 00:35 UTCJul 21, 01:40 UTC1h 5m
2026-07-20 AAL1939 BOS → ORD Jul 20, 22:20 UTCJul 20, 23:35 UTC1h 15m
2026-07-20 AAL1877 - Jul 20, 19:05 UTCJul 20, 20:55 UTC1h 50m
2026-07-20 AAL1877 FLL → CLT Jul 20, 19:02 UTCJul 20, 20:52 UTC1h 50m
2026-07-20 AAL1877 - Jul 20, 16:05 UTCJul 20, 17:35 UTC1h 30m
2026-07-20 AAL1989 - Jul 20, 13:50 UTCJul 20, 14:45 UTC55m
2026-07-20 AAL1989 - Jul 20, 12:00 UTCJul 20, 12:50 UTC50m
2026-07-20 AAL1212 PHL → PHX Jul 20, 02:40 UTCJul 20, 04:10 UTC1h 30m
2026-07-20 AAL1212 PHL → PHX Jul 20, 02:36 UTCJul 20, 04:06 UTC1h 30m
2026-07-19 AAL2979 - Jul 19, 20:05 UTCJul 20, 00:55 UTC4h 50m
2026-07-19 AAL2979 - Jul 19, 13:35 UTCJul 19, 17:50 UTC4h 15m
2026-07-19 AAL2979 - Jul 19, 13:10 UTCJul 19, 13:30 UTC20m
2026-07-18 AAL1367 ATL → MIA Jul 18, 23:50 UTCJul 19, 01:25 UTC1h 35m
2026-07-18 AAL1367 - Jul 18, 20:25 UTCJul 18, 21:50 UTC1h 25m
2026-07-18 AAL1152 - Jul 18, 16:05 UTCJul 18, 18:30 UTC2h 25m
2026-07-17 AAL618 MIA → BOS Jul 17, 20:03 UTCJul 17, 23:13 UTC3h 10m
2026-07-17 AAL618 MIA → BOS Jul 17, 20:04 UTCJul 17, 23:35 UTC3h 30m

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 N815NN page for operator, model, and routing details .

Mode-S AB1D28 frequently asked

What is Mode-S code AB1D28?
AB1D28 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N815NN.
Where is Mode-S AB1D28 registered?
Mode-S code AB1D28 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 AB1D28 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB1D28, octal 52616450, decimal 11,214,120.
What flights does AB1D28 operate?
Mode-S AB1D28 has broadcast 20 distinct callsigns, including AAL2899, AAL1989, AAL3052, AAL2047, AAL1939.