Apparatus

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sensors Mode-S transponder

AC2038

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8800L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC2038
Octal
53020070
Decimal
11,280,440
Country
US
Tail
N8800L
Type
B38M
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
762
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S AC2038.

Country allocation

The ICAO 24-bit address AC2038 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
SWA956 - 5 2026-06-22
SWA4055 Southwest Airlines 4 2026-07-21
SWA3596 - 4 2026-06-25
SWA2985 - 4 2026-06-22
SWA1267 Southwest Airlines 4 2026-06-06
SWA120 Southwest Airlines 4 2026-06-02
SWA1123 Southwest Airlines 4 2026-07-24
SWA988 Southwest Airlines 3 2026-05-30
SWA864 - 3 2026-06-21
SWA758 Southwest Airlines 3 2026-04-29
SWA753 Southwest Airlines 3 2026-05-27
SWA658 - 3 2026-07-07
SWA609 Southwest Airlines 3 2026-05-15
SWA556 - 3 2026-07-04
SWA4765 Southwest Airlines 3 2026-07-21
SWA4470 - 3 2026-06-29
SWA4406 - 3 2026-07-18
SWA44 Southwest Airlines 3 2026-05-11
SWA4339 Southwest Airlines 3 2026-04-14
SWA3751 Southwest Airlines 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA614 DEN → AUS Jul 26, 21:35 UTCJul 26, 22:00 UTC25m
2026-07-26 SWA211 PHL → DEN Jul 26, 17:35 UTCJul 26, 20:00 UTC2h 25m
2026-07-26 SWA1701 LAX → SJC Jul 26, 13:30 UTCJul 26, 16:10 UTC2h 40m
2026-07-26 SWA4675 SRQ → MDW Jul 26, 03:10 UTCJul 26, 06:05 UTC2h 55m
2026-07-26 SWA4675 SRQ → MDW Jul 26, 03:09 UTCJul 26, 06:08 UTC3h 0m
2026-07-26 SWA3208 BUR → PHX Jul 26, 00:55 UTCJul 26, 01:45 UTC50m
2026-07-25 SWA3208 BUR → PHX Jul 25, 20:55 UTCJul 25, 23:50 UTC2h 55m
2026-07-25 SWA3928 BNA → CLE Jul 25, 15:50 UTCJul 25, 19:45 UTC3h 55m
2026-07-25 SWA3928 BNA → CLE Jul 25, 15:49 UTCJul 25, 19:37 UTC3h 48m
2026-07-25 SWA1197 SJC → OGG Jul 25, 13:30 UTCJul 25, 14:20 UTC50m
2026-07-25 SWA4754 MCO → BNA Jul 25, 10:30 UTCJul 25, 12:20 UTC1h 50m
2026-07-24 SWA1123 STL → BOS Jul 24, 23:20 UTCJul 25, 01:20 UTC2h 0m
2026-07-24 SWA1123 STL → BOS Jul 24, 23:18 UTCJul 25, 01:21 UTC2h 3m
2026-07-24 SWA812 PUJ → BWI Jul 24, 18:25 UTCJul 24, 21:35 UTC3h 10m
2026-07-24 SWA811 BWI → PUJ Jul 24, 13:15 UTCJul 24, 14:45 UTC1h 30m
2026-07-24 SWA811 BWI → PUJ Jul 24, 13:11 UTCJul 24, 16:23 UTC3h 12m
2026-07-24 SWA1153 LAS → LIH Jul 24, 10:15 UTCJul 24, 11:15 UTC1h 0m
2026-07-24 SWA474 BOI → OAK Jul 24, 01:55 UTCJul 24, 02:55 UTC1h 0m
2026-07-24 SWA474 BOI → OAK Jul 24, 01:55 UTCJul 24, 02:55 UTC1h 0m
2026-07-23 SWA2264 BWI → CLT Jul 23, 23:35 UTCJul 24, 00:55 UTC1h 20m
2026-07-23 SWA2264 BWI → CLT Jul 23, 20:15 UTCJul 23, 22:40 UTC2h 25m
2026-07-23 SWA4238 SAN → OAK Jul 23, 16:55 UTCJul 23, 18:50 UTC1h 55m
2026-07-23 SWA2019 SEA → MDW Jul 23, 13:10 UTCJul 23, 15:55 UTC2h 45m
2026-07-23 SWA2019 SEA → MDW Jul 23, 13:05 UTCJul 23, 15:50 UTC2h 45m
2026-07-23 SWA4430 OAK → SNA Jul 23, 10:05 UTCJul 23, 11:35 UTC1h 30m
2026-07-23 SWA4429 DAL → LBB Jul 23, 05:35 UTCJul 23, 07:40 UTC2h 5m
2026-07-23 SWA4429 DAL → LBB Jul 23, 05:34 UTCJul 23, 07:40 UTC2h 6m
2026-07-23 SWA1169 HNL → SJC Jul 23, 02:00 UTCJul 23, 04:25 UTC2h 25m
2026-07-22 SWA4389 PHX → HOU Jul 22, 22:05 UTCJul 22, 23:20 UTC1h 15m
2026-07-22 SWA4275 MCO → GRR Jul 22, 17:00 UTCJul 22, 20:04 UTC3h 4m
2026-07-22 SWA4275 MCO → GRR Jul 22, 17:00 UTCJul 22, 20:00 UTC3h 0m
2026-07-22 SWA3303 OAK → BUR Jul 22, 14:20 UTCJul 22, 15:50 UTC1h 30m
2026-07-22 SWA3303 OAK → BUR Jul 22, 14:15 UTCJul 22, 15:44 UTC1h 29m
2026-07-22 SWA1048 SNA → SJC Jul 22, 04:00 UTCJul 22, 05:25 UTC1h 25m
2026-07-22 SWA1048 SNA → SJC Jul 22, 03:57 UTCJul 22, 06:33 UTC2h 36m
2026-07-21 SWA4765 SMF → LAX Jul 21, 23:10 UTCJul 22, 03:05 UTC3h 55m
2026-07-21 SWA4765 SMF → LAX Jul 21, 23:06 UTCJul 22, 03:04 UTC3h 58m
2026-07-21 SWA1531 - Jul 21, 21:25 UTCJul 21, 21:55 UTC30m
2026-07-21 SWA369 MCI → LAS Jul 21, 19:30 UTCJul 21, 20:00 UTC30m
2026-07-21 SWA369 MCI → LAS Jul 21, 19:29 UTCJul 21, 19:58 UTC29m
2026-07-21 SWA1535 BNA → MSY Jul 21, 15:10 UTCJul 21, 18:15 UTC3h 5m
2026-07-21 SWA4055 FLL → STL Jul 21, 11:15 UTCJul 21, 13:30 UTC2h 15m
2026-07-21 SWA3356 SLC → OAK Jul 21, 01:35 UTCJul 21, 03:45 UTC2h 10m
2026-07-20 SWA3356 SLC → OAK Jul 20, 23:10 UTCJul 21, 00:10 UTC1h 0m
2026-07-20 SWA4690 LAS → SMF Jul 20, 21:15 UTCJul 20, 22:05 UTC50m
2026-07-20 SWA4690 LAS → SMF Jul 20, 21:11 UTCJul 20, 22:03 UTC52m
2026-07-20 SWA4944 - Jul 20, 19:10 UTCJul 20, 20:10 UTC1h 0m
2026-07-20 SWA4944 SNA → PHX Jul 20, 19:08 UTCJul 20, 20:04 UTC56m
2026-07-20 SWA4927 MDW → RSW Jul 20, 15:40 UTCJul 20, 16:50 UTC1h 10m
2026-07-20 SWA4838 MCI → LAX Jul 20, 12:25 UTCJul 20, 13:55 UTC1h 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 N8800L page for operator, model, and routing details .

Mode-S AC2038 frequently asked

What is Mode-S code AC2038?
AC2038 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8800L.
Where is Mode-S AC2038 registered?
Mode-S code AC2038 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 AC2038 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 AC2038, octal 53020070, decimal 11,280,440.
What flights does AC2038 operate?
Mode-S AC2038 has broadcast 20 distinct callsigns, including SWA956, SWA4055, SWA3596, SWA2985, SWA1267.