Apparatus

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sensors Mode-S transponder

ABE4DB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8658A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABE4DB
Octal
52762333
Decimal
11,265,243
Country
US
Tail
N8658A
Type
B738
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
750
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S ABE4DB.

Country allocation

The ICAO 24-bit address ABE4DB 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
SWA4139 Southwest Airlines 6 2026-06-09
SWA4311 Southwest Airlines 5 2026-07-17
SWA2080 - 5 2026-06-22
SWA4417 Southwest Airlines 4 2026-05-24
SWA3579 Southwest Airlines 4 2026-05-30
SWA3004 - 4 2026-07-09
SWA2893 Southwest Airlines 4 2026-04-18
SWA2418 - 4 2026-06-21
SWA2404 - 4 2026-07-10
SWA1648 Southwest Airlines 4 2026-06-11
SWA908 - 3 2026-07-13
SWA759 Southwest Airlines 3 2026-04-17
SWA656 Southwest Airlines 3 2026-06-18
SWA611 Southwest Airlines 3 2026-05-26
SWA4684 Southwest Airlines 3 2026-07-19
SWA4660 - 3 2026-07-17
SWA4654 Southwest Airlines 3 2026-06-21
SWA4599 - 3 2026-07-02
SWA4525 - 3 2026-07-02
SWA4495 - 3 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3912 SAN → OAK Jul 26, 21:45 UTCJul 26, 22:45 UTC1h 0m
2026-07-26 SWA3152 BNA → VPS Jul 26, 18:20 UTCJul 26, 19:55 UTC1h 35m
2026-07-26 SWA490 LAX → OAK Jul 26, 13:30 UTCJul 26, 16:45 UTC3h 15m
2026-07-26 SWA1934 ISP → BWI Jul 26, 11:15 UTCJul 26, 12:20 UTC1h 5m
2026-07-25 SWA1142 DAL → LGA Jul 25, 20:45 UTCJul 25, 23:35 UTC2h 50m
2026-07-25 SWA3563 LGA → MDW Jul 25, 17:55 UTCJul 25, 19:30 UTC1h 35m
2026-07-25 SWA193 MKE → BWI Jul 25, 02:15 UTCJul 25, 04:20 UTC2h 5m
2026-07-25 SWA193 MKE → BWI Jul 25, 00:05 UTCJul 25, 01:05 UTC1h 0m
2026-07-24 SWA940 DAL → MAF Jul 24, 21:55 UTCJul 24, 22:50 UTC55m
2026-07-24 SWA2743 STL → MDW Jul 24, 18:35 UTCJul 24, 20:40 UTC2h 5m
2026-07-24 SWA2944 LAX → LAS Jul 24, 15:30 UTCJul 24, 17:30 UTC2h 0m
2026-07-24 SWA2944 LAX → LAS Jul 24, 15:25 UTCJul 24, 17:23 UTC1h 58m
2026-07-24 SWA585 SAN → SFO Jul 24, 13:20 UTCJul 24, 14:25 UTC1h 5m
2026-07-24 SWA585 SAN → SFO Jul 24, 13:18 UTCJul 24, 14:28 UTC1h 10m
2026-07-24 SWA3349 PHX → SMF Jul 24, 11:10 UTCJul 24, 12:00 UTC50m
2026-07-24 SWA3349 PHX → SMF Jul 24, 11:09 UTCJul 24, 11:53 UTC44m
2026-07-24 SWA4522 DAL → MDW Jul 24, 02:45 UTCJul 24, 03:25 UTC40m
2026-07-24 SWA4522 DAL → MDW Jul 24, 02:41 UTCJul 24, 03:24 UTC44m
2026-07-23 SWA2448 SAN → SJC Jul 23, 22:30 UTCJul 24, 00:25 UTC1h 55m
2026-07-23 SWA4478 MDW → CLT Jul 23, 18:00 UTCJul 23, 21:00 UTC3h 0m
2026-07-23 SWA3254 OKC → ATL Jul 23, 14:35 UTCJul 23, 16:45 UTC2h 10m
2026-07-23 SWA3071 STL → MDW Jul 23, 05:51 UTCJul 23, 07:24 UTC1h 33m
2026-07-23 SWA3071 STL → MDW Jul 23, 05:55 UTCJul 23, 07:25 UTC1h 30m
2026-07-23 SWA1164 ATL → MKE Jul 23, 01:55 UTCJul 23, 04:55 UTC3h 0m
2026-07-23 SWA1164 ATL → MKE Jul 23, 01:50 UTCJul 23, 04:56 UTC3h 6m
2026-07-22 SWA4677 MHT → BWI Jul 22, 23:25 UTCJul 23, 00:20 UTC55m
2026-07-22 SWA4677 MHT → BWI Jul 22, 23:20 UTCJul 23, 00:20 UTC1h 0m
2026-07-22 SWA3785 BNA → CMH Jul 22, 21:20 UTCJul 22, 22:10 UTC50m
2026-07-22 SWA3785 BNA → CMH Jul 22, 21:15 UTCJul 22, 22:05 UTC50m
2026-07-22 SWA3566 MDW → JAX Jul 22, 18:15 UTCJul 22, 18:55 UTC40m
2026-07-22 SWA3566 MDW → JAX Jul 22, 18:14 UTCJul 22, 18:49 UTC35m
2026-07-22 SWA4081 MCO → MCI Jul 22, 15:30 UTCJul 22, 17:15 UTC1h 45m
2026-07-22 SWA374 SJC → LAX Jul 22, 12:14 UTCJul 22, 14:05 UTC1h 51m
2026-07-22 SWA374 SJC → LAX Jul 22, 12:15 UTCJul 22, 14:10 UTC1h 55m
2026-07-22 SWA4011 SJC → SEA Jul 22, 02:25 UTCJul 22, 05:25 UTC3h 0m
2026-07-22 SWA4011 SJC → SEA Jul 22, 02:21 UTCJul 22, 05:27 UTC3h 6m
2026-07-22 SWA2350 LAS → FAT Jul 22, 00:05 UTCJul 22, 01:15 UTC1h 10m
2026-07-21 SWA2350 LAS → FAT Jul 21, 20:45 UTCJul 21, 22:55 UTC2h 10m
2026-07-21 SWA3051 DEN → SEA Jul 21, 16:50 UTCJul 21, 19:05 UTC2h 15m
2026-07-21 SWA3051 DEN → SEA Jul 21, 16:48 UTCJul 21, 19:01 UTC2h 14m
2026-07-21 SWA2943 DAL → MCO Jul 21, 13:20 UTCJul 21, 15:15 UTC1h 55m
2026-07-21 SWA980 - Jul 21, 00:55 UTCJul 21, 05:40 UTC4h 45m
2026-07-20 SWA1898 BOS → BWI Jul 20, 22:00 UTCJul 20, 23:05 UTC1h 5m
2026-07-20 SWA1898 AUS → BOS Jul 20, 16:55 UTCJul 20, 20:30 UTC3h 35m
2026-07-20 SWA4548 SAN → SJC Jul 20, 12:35 UTCJul 20, 14:25 UTC1h 50m
2026-07-20 SWA4548 SAN → SJC Jul 20, 12:33 UTCJul 20, 14:24 UTC1h 51m
2026-07-20 SWA3126 DAL → LGA Jul 20, 06:35 UTCJul 20, 07:25 UTC50m
2026-07-20 SWA3126 DAL → LGA Jul 20, 02:15 UTCJul 20, 05:20 UTC3h 5m
2026-07-19 SWA914 LAS → SJC Jul 19, 23:15 UTCJul 20, 00:40 UTC1h 25m
2026-07-19 SWA914 LAS → SJC Jul 19, 20:50 UTCJul 19, 21:45 UTC55m

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 N8658A page for operator, model, and routing details .

Mode-S ABE4DB frequently asked

What is Mode-S code ABE4DB?
ABE4DB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8658A.
Where is Mode-S ABE4DB registered?
Mode-S code ABE4DB 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 ABE4DB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE4DB, octal 52762333, decimal 11,265,243.
What flights does ABE4DB operate?
Mode-S ABE4DB has broadcast 20 distinct callsigns, including SWA4139, SWA4311, SWA2080, SWA4417, SWA3579.