sensors Mode-S transponder

AC8A66

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N907NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AC8A66
Octal
53105146
Decimal
11,307,622
Country
US
Tail
N907NN
Type
B738
No current signal · last broadcast 1h ago
Flights observed
224
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AC8A66.

Country allocation

The ICAO 24-bit address AC8A66 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AAL3127 SFO → CLT May 30, 00:55 UTCMay 30, 01:30 UTC35m
2026-05-29 AAL1574 PHL → CLT May 29, 20:47 UTCMay 29, 22:55 UTC2h 8m
2026-05-29 AAL1574 PHL → CLT May 29, 20:50 UTCMay 29, 23:00 UTC2h 10m
2026-05-29 AAL2588 BOS → PHX May 29, 16:55 UTCMay 29, 19:05 UTC2h 10m
2026-05-29 AAL2179 JFK → CLO May 29, 13:20 UTCMay 29, 15:25 UTC2h 5m
2026-05-29 AAL1715 DTW → DFW May 29, 00:25 UTCMay 29, 02:35 UTC2h 10m
2026-05-28 AAL2616 PHL → STL May 28, 19:40 UTCMay 28, 22:30 UTC2h 50m
2026-05-28 AAL2616 PHL → STL May 28, 15:30 UTCMay 28, 18:20 UTC2h 50m
2026-05-28 AAL1064 AUS → DFW May 28, 11:10 UTCMay 28, 13:20 UTC2h 10m
2026-05-28 AAL935 DCA → PHX May 28, 02:25 UTCMay 28, 04:35 UTC2h 10m
2026-05-27 AAL1592 LAS → AUS May 27, 22:20 UTCMay 28, 00:55 UTC2h 35m
2026-05-27 AAL3116 CLT → DSM May 27, 19:50 UTCMay 27, 20:45 UTC55m
2026-05-27 AAL3116 CLT → DSM May 27, 19:48 UTCMay 27, 20:35 UTC47m
2026-05-27 AAL2344 MIA → ORD May 27, 15:00 UTCMay 27, 18:05 UTC3h 5m
2026-05-26 AAL3158 SAF → DFW May 26, 22:09 UTCMay 27, 01:34 UTC3h 25m
2026-05-26 AAL2822 AUS → PHX May 26, 17:44 UTCMay 26, 19:45 UTC2h 0m
2026-05-26 AAL2822 AUS → PHX May 26, 14:24 UTCMay 26, 16:35 UTC2h 10m
2026-05-26 AAL1115 RDU → PHL May 26, 12:00 UTCMay 26, 13:00 UTC1h 0m
2026-05-25 AAL2361 DEN → ORD May 25, 22:36 UTCMay 26, 00:55 UTC2h 19m
2026-05-25 AAL2361 DEN → ORD May 25, 22:40 UTCMay 26, 01:00 UTC2h 20m
2026-05-25 AAL2290 PHL → IND May 25, 15:50 UTCMay 25, 18:20 UTC2h 30m
2026-05-24 AAL2307 IAH → PHL May 24, 20:15 UTCMay 24, 21:45 UTC1h 30m
2026-05-24 AAL2814 BOS → AUS May 24, 15:55 UTCMay 24, 18:00 UTC2h 5m
2026-05-24 AAL2814 BOS → AUS May 24, 12:45 UTCMay 24, 14:50 UTC2h 5m
2026-05-23 AAL2307 IAH → PHL May 23, 23:50 UTCMay 24, 02:35 UTC2h 45m
2026-05-23 AAL2307 IAH → PHL May 23, 20:20 UTCMay 23, 22:25 UTC2h 5m
2026-05-23 AAL1978 CLT → BOS May 23, 15:40 UTCMay 23, 18:40 UTC3h 1m
2026-05-23 AAL1978 CLT → BOS May 23, 15:39 UTCMay 23, 18:38 UTC2h 59m
2026-05-20 AAL1629 ORD → CLT May 20, 23:05 UTCMay 21, 01:45 UTC2h 40m
2026-05-20 AAL1629 ORD → CLT May 20, 23:01 UTCMay 21, 01:45 UTC2h 44m
2026-05-20 AAL967 MSP → MIA May 20, 16:25 UTCMay 20, 19:15 UTC2h 50m
2026-05-20 AAL1623 MIA → PHL May 20, 12:15 UTCMay 20, 14:45 UTC2h 30m
2026-05-19 AAL1693 PHX → SJC May 19, 15:30 UTCMay 19, 18:05 UTC2h 35m
2026-05-18 AAL1253 SFO → ORD May 18, 03:05 UTCMay 18, 07:05 UTC4h 0m
2026-05-17 AAL1253 SFO → ORD May 17, 12:30 UTCMay 17, 16:55 UTC4h 25m
2026-05-16 AAL2733 CLT → ORD May 16, 22:40 UTCMay 17, 02:20 UTC3h 40m
2026-05-16 AAL2733 CLT → ORD May 16, 17:30 UTCMay 16, 21:30 UTC4h 0m
2026-05-16 AAL3042 DFW → RSW May 16, 13:51 UTCMay 16, 15:55 UTC2h 5m
2026-05-16 AAL1260 DFW → CLE May 16, 01:20 UTCMay 16, 03:00 UTC1h 40m
2026-05-16 AAL1260 DFW → CLE May 16, 01:15 UTCMay 16, 02:54 UTC1h 39m
2026-05-15 AAL1592 LAS → AUS May 15, 20:15 UTCMay 15, 23:55 UTC3h 40m
2026-05-15 AAL1479 JFK → MIA May 15, 00:00 UTCMay 15, 04:00 UTC4h 0m
2026-05-14 AAL2402 PHL → STL May 14, 20:25 UTCMay 14, 22:20 UTC1h 55m
2026-05-14 AAL1679 BDL → PHL May 14, 17:40 UTCMay 14, 19:05 UTC1h 25m
2026-05-14 AAL1975 BDL → CLT May 14, 14:10 UTCMay 14, 15:10 UTC1h 0m
2026-05-14 AAL1975 BDL → CLT May 14, 14:06 UTCMay 14, 15:10 UTC1h 4m
2026-05-14 AAL1975 BDL → CLT May 14, 11:45 UTCMay 14, 12:50 UTC1h 5m
2026-05-14 AAL1731 YYZ → CLT May 14, 09:10 UTCMay 14, 09:40 UTC30m
2026-05-14 AAL1731 YYZ → CLT May 14, 09:07 UTCMay 14, 09:40 UTC33m
2026-05-14 AAL2807 SFO → DFW May 14, 02:15 UTCMay 14, 02:45 UTC30m

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 N907NN page for operator, model, and routing details .

Mode-S AC8A66 frequently asked

What is Mode-S code AC8A66?
AC8A66 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N907NN.
Where is Mode-S AC8A66 registered?
Mode-S code AC8A66 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 AC8A66 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC8A66, octal 53105146, decimal 11,307,622.
What flights does AC8A66 operate?
Mode-S AC8A66 has broadcast 20 distinct callsigns, including AAL1894, AAL2379, AAL1572, AAL1565, AAL1230.