Apparatus

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sensors Mode-S transponder

AB48E8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N826UA · AIRBUS A-319 · operated by UNITED AIRLINES INC

Hex
AB48E8
Octal
52644350
Decimal
11,225,320
Country
US
Tail
N826UA
Type
A319
Broadcasting now · callsign UAL1934 · 1,725 ft
Flights observed
429
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Current position

AB48E8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB48E8 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
UAL2437 United Airlines 6 2026-07-26
UAL2281 - 6 2026-07-02
UAL1982 - 6 2026-06-27
UAL2394 United Airlines 5 2026-07-19
UAL2218 - 5 2026-06-26
UAL1780 - 5 2026-06-27
UAL1067 United Airlines 5 2026-07-23
UAL697 - 4 2026-06-29
UAL1991 United Airlines 4 2026-07-20
UAL1778 - 4 2026-06-24
UAL600 - 3 2026-06-24
UAL587 United Airlines 3 2026-07-26
UAL521 United Airlines 3 2026-07-25
UAL515 - 3 2026-07-19
UAL481 United Airlines 3 2026-07-23
UAL4205 - 3 2026-07-14
UAL393 United Airlines 3 2026-05-24
UAL375 United Airlines 3 2026-05-13
UAL2483 United Airlines 3 2026-07-22
UAL2343 United Airlines 3 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL1420 MCO → EWR Jul 26, 21:45 UTCJul 26, 22:00 UTC15m
2026-07-26 UAL587 EWR → MSP Jul 26, 19:50 UTCJul 26, 20:25 UTC35m
2026-07-26 UAL2437 LGA → DEN Jul 26, 16:40 UTCJul 26, 17:45 UTC1h 5m
2026-07-26 UAL2437 LGA → DEN Jul 26, 16:38 UTCJul 26, 17:30 UTC52m
2026-07-26 UAL2266 LAS → EWR Jul 26, 13:20 UTCJul 26, 14:50 UTC1h 30m
2026-07-26 UAL469 IAH → ORD Jul 26, 10:35 UTCJul 26, 11:15 UTC40m
2026-07-26 UAL1542 SFO → YVR Jul 26, 01:45 UTCJul 26, 02:25 UTC40m
2026-07-25 UAL521 JFK → SFO Jul 25, 19:40 UTCJul 25, 23:15 UTC3h 35m
2026-07-25 UAL521 JFK → SFO Jul 25, 19:47 UTCJul 25, 23:14 UTC3h 27m
2026-07-25 UAL726 EWR → FLL Jul 25, 14:45 UTCJul 25, 18:05 UTC3h 20m
2026-07-24 UAL1678 SFO → IAH Jul 24, 23:40 UTCJul 25, 02:25 UTC2h 45m
2026-07-24 UAL625 BOS → ORD Jul 24, 19:30 UTCJul 24, 22:15 UTC2h 45m
2026-07-24 UAL2190 EWR → MSP Jul 24, 15:05 UTCJul 24, 17:45 UTC2h 40m
2026-07-24 UAL482 BOS → ORD Jul 24, 12:15 UTCJul 24, 13:40 UTC1h 25m
2026-07-24 UAL1148 DEN → BOS Jul 24, 06:50 UTCJul 24, 10:20 UTC3h 30m
2026-07-24 UAL1828 ORD → SAT Jul 24, 01:25 UTCJul 24, 05:10 UTC3h 45m
2026-07-23 UAL1067 IAH → BOS Jul 23, 22:05 UTCJul 23, 23:40 UTC1h 35m
2026-07-23 UAL1067 IAH → BOS Jul 23, 22:00 UTCJul 23, 23:31 UTC1h 31m
2026-07-23 UAL2343 RSW → DEN Jul 23, 19:30 UTCJul 23, 20:45 UTC1h 15m
2026-07-23 UAL2451 KRK → GDN Jul 23, 13:40 UTCJul 23, 17:35 UTC3h 55m
2026-07-23 UAL481 BNA → EWR Jul 23, 01:30 UTCJul 23, 05:35 UTC4h 5m
2026-07-22 UAL1357 IAD → SFO Jul 22, 20:35 UTCJul 22, 23:55 UTC3h 20m
2026-07-22 UAL2483 ORD → PDX Jul 22, 14:45 UTCJul 22, 19:00 UTC4h 15m
2026-07-21 UAL2729 PHL → ORD Jul 21, 18:54 UTCJul 21, 21:22 UTC2h 28m
2026-07-21 UAL2729 PHL → ORD Jul 21, 18:40 UTCJul 21, 21:40 UTC3h 0m
2026-07-21 UAL2728 VCV → SFO Jul 21, 14:25 UTCJul 21, 17:10 UTC2h 45m
2026-07-21 UAL785 ORD → PWM Jul 21, 00:55 UTCJul 21, 02:25 UTC1h 30m
2026-07-20 UAL1991 EWR → SFO Jul 20, 21:35 UTCJul 20, 23:10 UTC1h 35m
2026-07-20 UAL1435 AUS → EWR Jul 20, 15:15 UTCJul 20, 18:40 UTC3h 25m
2026-07-20 UAL2035 LAX → SFO Jul 20, 10:25 UTCJul 20, 13:35 UTC3h 10m
2026-07-20 UAL1439 EWR → SFO Jul 20, 02:30 UTCJul 20, 05:40 UTC3h 10m
2026-07-20 UAL1535 - Jul 20, 00:25 UTCJul 20, 01:15 UTC50m
2026-07-19 UAL404 SFO → DEN Jul 19, 21:10 UTCJul 19, 21:45 UTC35m
2026-07-19 UAL515 EWR → SAT Jul 19, 16:40 UTCJul 19, 20:00 UTC3h 20m
2026-07-19 UAL2394 BOS → EWR Jul 19, 13:25 UTCJul 19, 14:15 UTC50m
2026-07-18 UAL2394 BOS → EWR Jul 18, 20:55 UTCJul 18, 22:00 UTC1h 5m
2026-07-18 UAL1110 EWR → BOS Jul 18, 13:24 UTCJul 18, 14:18 UTC54m
2026-07-18 UAL1110 - Jul 18, 13:30 UTCJul 18, 14:20 UTC50m
2026-07-18 UAL1152 ATL → EWR Jul 18, 02:45 UTCJul 18, 04:30 UTC1h 46m
2026-07-17 UAL1848 - Jul 17, 23:14 UTCJul 18, 01:00 UTC1h 45m
2026-07-17 UAL1848 EWR → ATL Jul 17, 23:02 UTCJul 18, 00:58 UTC1h 56m
2026-07-17 UAL1226 ATL → EWR Jul 17, 17:15 UTCJul 17, 19:00 UTC1h 45m
2026-07-17 UAL2669 - Jul 17, 13:05 UTCJul 17, 14:44 UTC1h 40m
2026-07-17 UAL2669 EWR → ATL Jul 17, 13:09 UTCJul 17, 14:47 UTC1h 38m
2026-07-17 UAL1525 - Jul 17, 10:25 UTCJul 17, 11:30 UTC1h 5m
2026-07-17 UAL1233 ORD → SFO Jul 17, 03:20 UTCJul 17, 04:20 UTC1h 0m
2026-07-17 UAL2060 BOS → EWR Jul 17, 01:15 UTCJul 17, 02:15 UTC1h 0m
2026-07-16 UAL2763 - Jul 16, 22:35 UTCJul 16, 23:55 UTC1h 20m
2026-07-16 UAL2763 ATL → EWR Jul 16, 18:55 UTCJul 16, 21:15 UTC2h 20m
2026-07-16 UAL642 - Jul 16, 15:19 UTCJul 16, 17:00 UTC1h 40m

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 N826UA page for operator, model, and routing details .

Mode-S AB48E8 frequently asked

What is Mode-S code AB48E8?
AB48E8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N826UA.
Where is Mode-S AB48E8 registered?
Mode-S code AB48E8 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 AB48E8 broadcasting right now?
Yes. Mode-S AB48E8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB48E8, octal 52644350, decimal 11,225,320.
What flights does AB48E8 operate?
Mode-S AB48E8 has broadcast 20 distinct callsigns, including UAL2437, UAL2281, UAL1982, UAL2394, UAL2218.