Apparatus

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sensors Mode-S transponder

ABAE2C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8515X · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABAE2C
Octal
52727054
Decimal
11,251,244
Country
US
Tail
N8515X
Type
B738
Broadcasting now · callsign SWA3179 · 37,000 ft
Flights observed
757
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Current position

ABAE2C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABAE2C 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
SWA2906 Southwest Airlines 6 2026-05-24
SWA1490 Southwest Airlines 5 2026-04-17
SWA887 Southwest Airlines 4 2026-07-23
SWA851 - 4 2026-04-13
SWA609 Southwest Airlines 4 2026-04-17
SWA483 - 4 2026-07-17
SWA425 Southwest Airlines 4 2026-04-15
SWA3829 Southwest Airlines 4 2026-04-15
SWA3788 - 4 2026-07-04
SWA3241 - 4 2026-07-11
SWA3161 - 4 2026-07-17
SWA2768 - 4 2026-06-28
SWA2597 - 4 2026-06-28
SWA2464 Southwest Airlines 4 2026-05-15
SWA2339 Southwest Airlines 4 2026-04-21
SWA206 - 4 2026-06-27
SWA1483 - 4 2026-07-17
SWA1052 Southwest Airlines 4 2026-06-19
SWA978 Southwest Airlines 3 2026-05-26
SWA856 Southwest Airlines 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1342 AUS → MSY Jul 26, 22:05 UTCJul 26, 23:00 UTC55m
2026-07-26 SWA4337 SMF → LAS Jul 26, 17:50 UTCJul 26, 20:55 UTC3h 5m
2026-07-26 SWA1982 LAS → SJC Jul 26, 13:15 UTCJul 26, 16:30 UTC3h 15m
2026-07-26 SWA1982 LAS → SJC Jul 26, 13:14 UTCJul 26, 16:27 UTC3h 14m
2026-07-26 SWA3349 PHX → SMF Jul 26, 11:10 UTCJul 26, 11:55 UTC45m
2026-07-26 SWA4435 ORD → FLL Jul 26, 02:20 UTCJul 26, 03:30 UTC1h 10m
2026-07-25 SWA983 SJC → DEN Jul 25, 22:50 UTCJul 26, 01:00 UTC2h 10m
2026-07-25 SWA983 SJC → DEN Jul 25, 22:49 UTCJul 26, 00:57 UTC2h 8m
2026-07-25 SWA4205 MDW → TPA Jul 25, 19:55 UTCJul 25, 22:00 UTC2h 5m
2026-07-25 SWA4205 MDW → TPA Jul 25, 19:54 UTCJul 25, 21:50 UTC1h 56m
2026-07-25 SWA239 LAX → SJC Jul 25, 16:45 UTCJul 25, 18:25 UTC1h 40m
2026-07-25 SWA239 LAX → SJC Jul 25, 14:10 UTCJul 25, 15:40 UTC1h 30m
2026-07-25 SWA239 LAX → SJC Jul 25, 11:40 UTCJul 25, 13:10 UTC1h 30m
2026-07-25 SWA506 CVG → MDW Jul 25, 03:05 UTCJul 25, 05:30 UTC2h 25m
2026-07-25 SWA506 CVG → MDW Jul 25, 03:05 UTCJul 25, 05:20 UTC2h 15m
2026-07-24 SWA4600 SLC → OAK Jul 24, 22:25 UTCJul 25, 01:25 UTC3h 0m
2026-07-24 SWA3968 DAL → OMA Jul 24, 18:35 UTCJul 24, 21:20 UTC2h 45m
2026-07-24 SWA3316 IND → FLL Jul 24, 15:15 UTCJul 24, 17:15 UTC2h 0m
2026-07-24 SWA3316 IND → FLL Jul 24, 15:12 UTCJul 24, 17:15 UTC2h 3m
2026-07-24 SWA4679 AUS → MSP Jul 24, 11:10 UTCJul 24, 12:45 UTC1h 35m
2026-07-24 SWA4798 MDW → FLL Jul 24, 00:55 UTCJul 24, 02:35 UTC1h 40m
2026-07-23 SWA3431 DAL → MSY Jul 23, 22:30 UTCJul 23, 23:40 UTC1h 10m
2026-07-23 SWA1071 SNA → SJC Jul 23, 20:45 UTCJul 23, 21:35 UTC50m
2026-07-23 SWA267 BHM → DAL Jul 23, 16:46 UTCJul 23, 19:37 UTC2h 52m
2026-07-23 SWA267 BHM → DAL Jul 23, 16:50 UTCJul 23, 19:40 UTC2h 50m
2026-07-23 SWA4548 SAN → SJC Jul 23, 12:40 UTCJul 23, 14:30 UTC1h 50m
2026-07-23 SWA1315 SLC → SJC Jul 23, 04:45 UTCJul 23, 06:10 UTC1h 25m
2026-07-23 SWA887 STL → CLE Jul 23, 00:55 UTCJul 23, 02:15 UTC1h 20m
2026-07-23 SWA887 STL → CLE Jul 23, 00:49 UTCJul 23, 02:09 UTC1h 21m
2026-07-22 SWA887 STL → CLE Jul 22, 18:10 UTCJul 22, 23:50 UTC5h 40m
2026-07-22 SWA887 STL → CLE Jul 22, 15:40 UTCJul 22, 16:45 UTC1h 5m
2026-07-22 SWA3876 MCI → LGA Jul 22, 11:45 UTCJul 22, 14:00 UTC2h 15m
2026-07-21 SWA249 BWI → FLL Jul 21, 18:55 UTCJul 21, 21:05 UTC2h 10m
2026-07-21 SWA249 BWI → FLL Jul 21, 18:54 UTCJul 21, 20:59 UTC2h 5m
2026-07-21 SWA191 ONT → SJC Jul 21, 16:55 UTCJul 21, 17:35 UTC40m
2026-07-21 SWA191 ONT → SJC Jul 21, 16:54 UTCJul 21, 17:29 UTC35m
2026-07-21 SWA2779 TPA → ALB Jul 21, 15:15 UTCJul 21, 15:40 UTC25m
2026-07-21 SWA3711 - Jul 21, 12:35 UTCJul 21, 14:05 UTC1h 30m
2026-07-21 SWA4518 - Jul 21, 02:20 UTCJul 21, 03:10 UTC50m
2026-07-21 SWA4518 BNA → CLT Jul 21, 02:18 UTCJul 21, 03:09 UTC51m
2026-07-21 SWA1073 SAN → OAK Jul 21, 00:15 UTCJul 21, 01:10 UTC55m
2026-07-20 SWA3081 SEA → MDW Jul 20, 19:55 UTCJul 20, 23:15 UTC3h 20m
2026-07-20 SWA3081 OAK → SEA Jul 20, 16:45 UTCJul 20, 18:10 UTC1h 25m
2026-07-20 SWA266 SEA → OAK Jul 20, 13:45 UTCJul 20, 15:35 UTC1h 50m
2026-07-20 SWA693 MCI → DEN Jul 20, 05:35 UTCJul 20, 06:50 UTC1h 15m
2026-07-20 SWA4464 - Jul 20, 03:30 UTCJul 20, 04:40 UTC1h 10m
2026-07-19 SWA391 AUS → SAN Jul 19, 23:10 UTCJul 20, 01:35 UTC2h 25m
2026-07-19 SWA4860 SMF → AUS Jul 19, 19:50 UTCJul 19, 21:55 UTC2h 5m
2026-07-19 SWA4499 BWI → BOS Jul 19, 16:55 UTCJul 19, 18:40 UTC1h 45m
2026-07-19 SWA3749 SMF → LAS Jul 19, 13:05 UTCJul 19, 15:40 UTC2h 35m

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 N8515X page for operator, model, and routing details .

Mode-S ABAE2C frequently asked

What is Mode-S code ABAE2C?
ABAE2C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8515X.
Where is Mode-S ABAE2C registered?
Mode-S code ABAE2C 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 ABAE2C broadcasting right now?
Yes. Mode-S ABAE2C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABAE2C, octal 52727054, decimal 11,251,244.
What flights does ABAE2C operate?
Mode-S ABAE2C has broadcast 20 distinct callsigns, including SWA2906, SWA1490, SWA887, SWA851, SWA609.