sensors Mode-S transponder

ABD3C7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N861NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
ABD3C7
Octal
52751707
Decimal
11,260,871
Country
US
Tail
N861NN
Type
B738
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
534
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S ABD3C7.

Country allocation

The ICAO 24-bit address ABD3C7 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
AAL2523 American Airlines 7 2026-04-27
AAL2677 American Airlines 6 2026-04-14
AAL1894 American Airlines 6 2026-07-25
AAL2244 American Airlines 5 2026-04-16
AAL1989 American Airlines 5 2026-06-12
AAL1831 American Airlines 5 2026-07-03
AAL1697 - 5 2026-07-09
AAL1352 - 5 2026-06-29
AAL874 - 4 2026-07-11
AAL3294 American Airlines 4 2026-05-07
AAL301 - 4 2026-06-27
AAL2662 - 4 2026-06-27
AAL2477 American Airlines 4 2026-05-24
AAL2391 - 4 2026-06-30
AAL2231 American Airlines 4 2026-04-13
AAL584 American Airlines 3 2026-05-27
AAL3065 - 3 2026-06-25
AAL3010 American Airlines 3 2026-05-10
AAL2972 American Airlines 3 2026-05-04
AAL2899 American Airlines 3 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1508 RDU → LGA Jul 26, 18:40 UTCJul 26, 20:35 UTC1h 55m
2026-07-26 AAL495 JFK → CLT Jul 26, 14:55 UTCJul 26, 16:50 UTC1h 55m
2026-07-26 AAL386 LGA → RDU Jul 26, 11:15 UTCJul 26, 13:00 UTC1h 45m
2026-07-26 AAL386 LGA → RDU Jul 26, 11:11 UTCJul 26, 12:51 UTC1h 40m
2026-07-26 AAL1472 RDU → LGA Jul 26, 03:39 UTCJul 26, 04:47 UTC1h 8m
2026-07-26 AAL1472 RDU → LGA Jul 26, 03:40 UTCJul 26, 04:45 UTC1h 5m
2026-07-25 AAL1894 RDU → CLT Jul 25, 23:40 UTCJul 26, 01:55 UTC2h 15m
2026-07-25 AAL1894 RDU → CLT Jul 25, 19:50 UTCJul 25, 22:00 UTC2h 10m
2026-07-25 AAL1279 MSY → PHX Jul 25, 16:05 UTCJul 25, 18:05 UTC2h 0m
2026-07-25 AAL1279 MSY → PHX Jul 25, 16:04 UTCJul 25, 18:10 UTC2h 6m
2026-07-25 AAL1279 MSY → PHX Jul 25, 12:35 UTCJul 25, 14:35 UTC2h 0m
2026-07-25 AAL1626 LGA → DFW Jul 25, 01:30 UTCJul 25, 04:10 UTC2h 40m
2026-07-25 AAL1626 LGA → DFW Jul 25, 01:29 UTCJul 25, 04:09 UTC2h 40m
2026-07-24 AAL1634 AUS → PHL Jul 24, 22:15 UTCJul 25, 00:35 UTC2h 20m
2026-07-24 AAL1634 AUS → PHL Jul 24, 22:13 UTCJul 25, 00:32 UTC2h 19m
2026-07-24 AAL2726 ORD → PHL Jul 24, 19:45 UTCJul 24, 20:10 UTC25m
2026-07-24 AAL1491 - Jul 24, 16:45 UTCJul 24, 17:00 UTC15m
2026-07-24 AAL1259 BOS → MIA Jul 24, 12:15 UTCJul 24, 15:15 UTC3h 0m
2026-07-23 AAL2303 LGA → DCA Jul 23, 22:13 UTCJul 24, 00:01 UTC1h 48m
2026-07-23 AAL2303 LGA → DCA Jul 23, 22:15 UTCJul 23, 23:45 UTC1h 30m
2026-07-23 AAL1705 LGA → ORD Jul 23, 18:25 UTCJul 23, 20:15 UTC1h 50m
2026-07-23 AAL3256 IND → MIA Jul 23, 14:15 UTCJul 23, 16:55 UTC2h 40m
2026-07-23 AAL1183 - Jul 23, 10:15 UTCJul 23, 12:25 UTC2h 10m
2026-07-22 AAL1495 - Jul 22, 23:15 UTCJul 23, 00:10 UTC55m
2026-07-22 AAL1495 CLT → BWI Jul 22, 23:11 UTCJul 23, 00:05 UTC54m
2026-07-22 AAL1681 MIA → PHL Jul 22, 20:10 UTCJul 22, 21:15 UTC1h 5m
2026-07-22 AAL1681 MIA → PHL Jul 22, 17:45 UTCJul 22, 18:55 UTC1h 10m
2026-07-22 AAL2733 - Jul 22, 14:40 UTCJul 22, 15:55 UTC1h 15m
2026-07-22 AAL2733 - Jul 22, 11:55 UTCJul 22, 13:25 UTC1h 30m
2026-07-22 AAL626 PHL → CLT Jul 22, 03:00 UTCJul 22, 03:50 UTC50m
2026-07-21 AAL2917 - Jul 21, 23:20 UTCJul 22, 00:35 UTC1h 15m
2026-07-21 AAL2917 ORD → CLT Jul 21, 23:19 UTCJul 22, 00:34 UTC1h 15m
2026-07-21 AAL2484 - Jul 21, 18:05 UTCJul 21, 21:50 UTC3h 45m
2026-07-21 AAL2484 ORD → SAN Jul 21, 12:05 UTCJul 21, 15:40 UTC3h 35m
2026-07-20 AAL2537 - Jul 20, 23:30 UTCJul 21, 03:15 UTC3h 44m
2026-07-20 AAL3199 CLT → GSP Jul 20, 20:20 UTCJul 20, 21:55 UTC1h 35m
2026-07-20 AAL2042 AUS → PHX Jul 20, 17:10 UTCJul 20, 19:05 UTC1h 55m
2026-07-20 AAL2218 DFW → PBI Jul 20, 13:50 UTCJul 20, 15:50 UTC2h 0m
2026-07-20 AAL3324 BOS → ORD Jul 20, 09:20 UTCJul 20, 11:35 UTC2h 15m
2026-07-19 AAL567 PHX → BNH Jul 19, 23:40 UTCJul 20, 04:20 UTC4h 40m
2026-07-14 AAL2544 SFO → PHX Jul 14, 05:00 UTCJul 14, 06:40 UTC1h 40m
2026-07-13 AAL1253 ORD → SFO Jul 13, 21:05 UTCJul 14, 00:50 UTC3h 45m
2026-07-13 AAL1598 - Jul 13, 15:15 UTCJul 13, 19:05 UTC3h 50m
2026-07-13 AAL3287 DFW → LAX Jul 13, 03:45 UTCJul 13, 06:15 UTC2h 30m
2026-07-13 AAL3287 DFW → LAX Jul 13, 03:42 UTCJul 13, 06:10 UTC2h 28m
2026-07-12 AAL2813 TPA → DFW Jul 12, 23:10 UTCJul 13, 02:01 UTC2h 50m
2026-07-12 AAL2813 - Jul 12, 19:01 UTCJul 12, 21:15 UTC2h 15m
2026-07-12 AAL1713 - Jul 12, 15:30 UTCJul 12, 17:15 UTC1h 45m
2026-07-12 AAL1713 DFW → CVG Jul 12, 12:20 UTCJul 12, 14:05 UTC1h 45m
2026-07-12 AAL1682 - Jul 12, 03:05 UTCJul 12, 05:35 UTC2h 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 N861NN page for operator, model, and routing details .

Mode-S ABD3C7 frequently asked

What is Mode-S code ABD3C7?
ABD3C7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N861NN.
Where is Mode-S ABD3C7 registered?
Mode-S code ABD3C7 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 ABD3C7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABD3C7, octal 52751707, decimal 11,260,871.
What flights does ABD3C7 operate?
Mode-S ABD3C7 has broadcast 20 distinct callsigns, including AAL2523, AAL2677, AAL1894, AAL2244, AAL1989.