Apparatus

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sensors Mode-S transponder

AC2FC3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8845L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC2FC3
Octal
53027703
Decimal
11,284,419
Country
US
Tail
N8845L
Type
B38M
Broadcasting now · callsign SWA3119 · 36,000 ft
Flights observed
639
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

AC2FC3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC2FC3 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
SWA2732 - 6 2026-06-24
SWA1474 - 5 2026-06-26
SWA4250 - 4 2026-06-23
SWA3521 Southwest Airlines 4 2026-05-11
SWA3309 Southwest Airlines 4 2026-06-07
SWA1874 - 4 2026-06-21
SWA1813 - 4 2026-07-15
SWA988 - 3 2026-07-12
SWA899 Southwest Airlines 3 2026-06-18
SWA784 - 3 2026-07-11
SWA697 Southwest Airlines 3 2026-05-13
SWA4470 - 3 2026-07-10
SWA4422 Southwest Airlines 3 2026-04-26
SWA4101 Southwest Airlines 3 2026-05-21
SWA3609 Southwest Airlines 3 2026-06-10
SWA359 Southwest Airlines 3 2026-06-30
SWA2943 - 3 2026-07-07
SWA2834 - 3 2026-06-19
SWA2788 Southwest Airlines 3 2026-06-07
SWA2472 Southwest Airlines 3 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SWA1653 - Jul 17, 23:45 UTCJul 18, 00:45 UTC1h 0m
2026-07-17 SWA2455 LGA → DEN Jul 17, 18:35 UTCJul 17, 22:03 UTC3h 28m
2026-07-17 SWA2455 LGA → DEN Jul 17, 18:40 UTCJul 17, 22:10 UTC3h 30m
2026-07-17 SWA1966 BNA → LGA Jul 17, 15:05 UTCJul 17, 16:59 UTC1h 55m
2026-07-17 SWA1966 BNA → LGA Jul 17, 15:02 UTCJul 17, 16:59 UTC1h 57m
2026-07-17 SWA2959 - Jul 17, 12:40 UTCJul 17, 13:40 UTC1h 0m
2026-07-17 SWA2959 MDW → BNA Jul 17, 12:37 UTCJul 17, 13:35 UTC58m
2026-07-17 SWA3802 SMF → MDW Jul 17, 07:14 UTCJul 17, 10:50 UTC3h 35m
2026-07-17 SWA4921 - Jul 17, 04:20 UTCJul 17, 05:20 UTC1h 0m
2026-07-16 SWA188 BWI → FLL Jul 16, 23:20 UTCJul 17, 03:05 UTC3h 45m
2026-07-16 SWA1162 - Jul 16, 21:10 UTCJul 16, 22:05 UTC55m
2026-07-16 SWA1162 CLE → MDW Jul 16, 21:06 UTCJul 16, 22:00 UTC54m
2026-07-16 SWA3887 - Jul 16, 16:35 UTCJul 16, 20:05 UTC3h 30m
2026-07-16 SWA3887 - Jul 16, 14:20 UTCJul 16, 15:10 UTC50m
2026-07-16 SWA3837 - Jul 16, 03:00 UTCJul 16, 04:10 UTC1h 10m
2026-07-16 SWA4897 CPM → SMF Jul 16, 01:05 UTCJul 16, 02:10 UTC1h 5m
2026-07-15 SWA4413 - Jul 15, 20:30 UTCJul 16, 00:00 UTC3h 30m
2026-07-15 SWA1813 - Jul 15, 16:30 UTCJul 15, 19:05 UTC2h 35m
2026-07-15 SWA1813 ELP → MDW Jul 15, 16:16 UTCJul 15, 19:00 UTC2h 44m
2026-07-15 SWA4481 - Jul 15, 13:30 UTCJul 15, 14:45 UTC1h 15m
2026-07-15 SWA4481 HOU → ELP Jul 15, 13:25 UTCJul 15, 14:51 UTC1h 26m
2026-07-15 SWA4430 - Jul 15, 10:40 UTCJul 15, 12:10 UTC1h 30m
2026-07-15 SWA4429 DEN → BNA Jul 15, 03:45 UTCJul 15, 06:00 UTC2h 15m
2026-07-15 SWA4429 DEN → BNA Jul 15, 03:42 UTCJul 15, 05:55 UTC2h 13m
2026-07-14 SWA1178 - Jul 14, 23:40 UTCJul 15, 02:40 UTC3h 0m
2026-07-14 SWA1034 - Jul 14, 21:35 UTCJul 14, 22:40 UTC1h 5m
2026-07-14 SWA1508 DEN → CMH Jul 14, 18:00 UTCJul 14, 20:30 UTC2h 30m
2026-07-13 SWA2631 - Jul 13, 16:50 UTCJul 13, 20:05 UTC3h 15m
2026-07-13 SWA3242 - Jul 13, 14:20 UTCJul 13, 15:45 UTC1h 25m
2026-07-13 SWA3242 MSY → MCO Jul 13, 14:19 UTCJul 13, 15:44 UTC1h 25m
2026-07-13 SWA1160 - Jul 13, 03:45 UTCJul 13, 05:01 UTC1h 15m
2026-07-13 SWA2775 ATL → TPA Jul 13, 01:40 UTCJul 13, 02:40 UTC1h 0m
2026-07-12 SWA4922 MCO → ATL Jul 12, 22:45 UTCJul 12, 23:50 UTC1h 5m
2026-07-12 SWA988 RSW → MCO Jul 12, 20:05 UTCJul 12, 20:40 UTC35m
2026-07-12 SWA988 RSW → MCO Jul 12, 20:05 UTCJul 12, 20:39 UTC34m
2026-07-12 SWA988 - Jul 12, 16:40 UTCJul 12, 19:15 UTC2h 35m
2026-07-12 SWA1059 - Jul 12, 14:35 UTCJul 12, 15:20 UTC45m
2026-07-12 SWA1823 - Jul 12, 12:05 UTCJul 12, 13:25 UTC1h 20m
2026-07-12 SWA1823 MCO → RDU Jul 12, 12:05 UTCJul 12, 13:22 UTC1h 17m
2026-07-11 SWA3800 - Jul 11, 22:01 UTCJul 12, 00:25 UTC2h 25m
2026-07-11 SWA3800 OKC → MCO Jul 11, 21:57 UTCJul 12, 00:18 UTC2h 22m
2026-07-11 SWA1088 - Jul 11, 18:20 UTCJul 11, 18:45 UTC25m
2026-07-11 SWA1088 BWI → OKC Jul 11, 18:16 UTCJul 11, 20:59 UTC2h 43m
2026-07-11 SWA4117 - Jul 11, 15:55 UTCJul 11, 17:00 UTC1h 5m
2026-07-11 SWA784 - Jul 11, 12:55 UTCJul 11, 14:35 UTC1h 40m
2026-07-11 SWA784 MDW → PVD Jul 11, 12:54 UTCJul 11, 14:35 UTC1h 41m
2026-07-11 SWA442 - Jul 11, 10:20 UTCJul 11, 11:45 UTC1h 25m
2026-07-11 SWA4829 - Jul 11, 03:20 UTCJul 11, 04:30 UTC1h 10m
2026-07-10 SWA284 - Jul 10, 23:05 UTCJul 11, 02:00 UTC2h 55m
2026-07-10 SWA4470 - Jul 10, 18:35 UTCJul 10, 21:00 UTC2h 25m

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 N8845L page for operator, model, and routing details .

Mode-S AC2FC3 frequently asked

What is Mode-S code AC2FC3?
AC2FC3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8845L.
Where is Mode-S AC2FC3 registered?
Mode-S code AC2FC3 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 AC2FC3 broadcasting right now?
Yes. Mode-S AC2FC3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC2FC3, octal 53027703, decimal 11,284,419.
What flights does AC2FC3 operate?
Mode-S AC2FC3 has broadcast 20 distinct callsigns, including SWA2732, SWA1474, SWA4250, SWA3521, SWA3309.