Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A98219

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N711ZX · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A98219
Octal
52301031
Decimal
11,108,889
Country
US
Tail
N711ZX
Type
B752
Broadcasting now · callsign DAL1521 · 33,000 ft
Flights observed
330
Distinct callsigns
20
Country
US
Last broadcast
37m ago

Current position

A98219 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A98219 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
DAL1857 - 29 2026-07-17
DAL403 - 15 2026-07-15
DAL363 Delta Air Lines 13 2026-06-25
DAL556 - 12 2026-07-15
DAL383 - 12 2026-06-18
DAL329 - 11 2026-06-13
DAL667 - 10 2026-06-19
DAL1521 - 10 2026-07-17
DAL361 Delta Air Lines 9 2026-05-30
DAL1732 Delta Air Lines 9 2026-06-16
DAL1327 Delta Air Lines 9 2026-06-01
DAL721 - 8 2026-07-10
DAL987 - 7 2026-06-20
DAL639 Delta Air Lines 7 2026-06-22
DAL437 - 7 2026-06-21
DAL318 - 7 2026-06-22
DAL791 - 6 2026-07-11
DAL786 Delta Air Lines 6 2026-05-05
DAL730 Delta Air Lines 6 2026-05-05
DAL335 Delta Air Lines 6 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 DAL1521 - Jul 17, 19:25 UTCJul 17, 22:15 UTC2h 50m
2026-07-17 DAL1857 - Jul 17, 13:40 UTCJul 17, 17:35 UTC3h 55m
2026-07-16 DAL1856 - Jul 16, 18:50 UTCJul 16, 22:49 UTC4h 0m
2026-07-16 DAL1857 - Jul 16, 13:40 UTCJul 16, 17:30 UTC3h 50m
2026-07-16 DAL1857 DTW → SNA Jul 16, 13:37 UTCJul 16, 17:28 UTC3h 51m
2026-07-15 DAL1856 - Jul 15, 18:55 UTCJul 15, 22:55 UTC4h 0m
2026-07-15 DAL403 JFK → SNA Jul 15, 11:55 UTCJul 15, 16:45 UTC4h 50m
2026-07-15 DAL556 - Jul 15, 04:15 UTCJul 15, 09:05 UTC4h 50m
2026-07-14 DAL2012 ATL → SNA Jul 14, 21:55 UTCJul 15, 01:55 UTC3h 59m
2026-07-14 DAL2326 - Jul 14, 14:50 UTCJul 14, 15:35 UTC45m
2026-07-14 DAL2326 JAX → ATL Jul 14, 14:49 UTCJul 14, 15:40 UTC51m
2026-07-14 DAL2326 - Jul 14, 12:40 UTCJul 14, 13:25 UTC45m
2026-07-13 DAL1521 - Jul 13, 20:40 UTCJul 14, 00:35 UTC3h 55m
2026-07-12 DAL403 JFK → SNA Jul 12, 12:01 UTCJul 12, 16:50 UTC4h 50m
2026-07-11 DAL791 PHX → JFK Jul 11, 20:40 UTCJul 12, 01:05 UTC4h 25m
2026-07-11 DAL791 - Jul 11, 14:15 UTCJul 11, 19:00 UTC4h 45m
2026-07-11 DAL556 - Jul 11, 04:30 UTCJul 11, 09:05 UTC4h 35m
2026-07-10 DAL2012 - Jul 10, 22:10 UTCJul 11, 02:00 UTC3h 50m
2026-07-10 DAL721 - Jul 10, 16:05 UTCJul 10, 20:35 UTC4h 30m
2026-07-10 DAL721 SNA → ATL Jul 10, 16:04 UTCJul 10, 20:33 UTC4h 29m
2026-07-10 DAL826 ATL → SNA Jul 10, 01:20 UTCJul 10, 05:15 UTC3h 55m
2026-07-09 DAL1521 - Jul 9, 19:35 UTCJul 9, 23:35 UTC4h 0m
2026-07-09 DAL1857 - Jul 9, 13:40 UTCJul 9, 17:50 UTC4h 10m
2026-07-08 DAL1856 - Jul 8, 18:50 UTCJul 8, 22:35 UTC3h 45m
2026-07-08 DAL403 JFK → SNA Jul 8, 11:45 UTCJul 8, 16:45 UTC5h 0m
2026-07-08 DAL403 JFK → SNA Jul 8, 11:44 UTCJul 8, 16:49 UTC5h 5m
2026-07-08 DAL556 - Jul 8, 04:10 UTCJul 8, 08:55 UTC4h 45m
2026-07-07 DAL2012 - Jul 7, 22:05 UTCJul 8, 02:00 UTC3h 55m
2026-07-07 DAL721 - Jul 7, 14:15 UTCJul 7, 18:05 UTC3h 50m
2026-07-07 DAL826 - Jul 7, 01:05 UTCJul 7, 05:00 UTC3h 55m
2026-07-06 DAL1521 - Jul 6, 19:40 UTCJul 6, 23:30 UTC3h 50m
2026-07-06 DAL1521 SNA → ATL Jul 6, 19:38 UTCJul 6, 23:27 UTC3h 49m
2026-07-06 DAL1857 - Jul 6, 13:30 UTCJul 6, 17:40 UTC4h 10m
2026-07-05 DAL1856 PLS → MSP Jul 5, 19:05 UTCJul 5, 23:05 UTC4h 0m
2026-07-05 DAL403 JFK → SNA Jul 5, 12:10 UTCJul 5, 17:15 UTC5h 5m
2026-07-05 DAL556 - Jul 5, 04:05 UTCJul 5, 08:50 UTC4h 45m
2026-07-04 DAL2012 ATL → SNA Jul 4, 21:45 UTCJul 5, 02:10 UTC4h 25m
2026-07-03 DAL1521 - Jul 3, 22:05 UTCJul 4, 01:45 UTC3h 40m
2026-07-03 DAL1521 SNA → ATL Jul 3, 22:02 UTCJul 4, 01:43 UTC3h 41m
2026-07-03 DAL1857 - Jul 3, 13:30 UTCJul 3, 17:45 UTC4h 15m
2026-07-03 DAL1857 DTW → SNA Jul 3, 13:29 UTCJul 3, 17:56 UTC4h 27m
2026-07-02 DAL1856 PLS → MSP Jul 2, 19:35 UTCJul 2, 23:15 UTC3h 40m
2026-07-02 DAL403 JFK → SNA Jul 2, 12:20 UTCJul 2, 17:35 UTC5h 15m
2026-07-02 DAL403 JFK → SNA Jul 2, 12:20 UTCJul 2, 17:30 UTC5h 10m
2026-07-02 DAL556 - Jul 2, 04:55 UTCJul 2, 09:50 UTC4h 55m
2026-07-02 DAL556 SNA → JFK Jul 2, 04:53 UTCJul 2, 09:46 UTC4h 53m
2026-07-01 DAL2012 ATL → SNA Jul 1, 22:30 UTCJul 2, 02:40 UTC4h 10m
2026-06-30 DAL1521 - Jun 30, 20:25 UTCJul 1, 00:25 UTC4h 0m
2026-06-30 DAL1857 - Jun 30, 14:20 UTCJun 30, 18:40 UTC4h 20m
2026-06-29 DAL1856 PLS → MSP Jun 29, 19:15 UTCJun 29, 22:55 UTC3h 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 N711ZX page for operator, model, and routing details .

Mode-S A98219 frequently asked

What is Mode-S code A98219?
A98219 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N711ZX.
Where is Mode-S A98219 registered?
Mode-S code A98219 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 A98219 broadcasting right now?
Yes. Mode-S A98219 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A98219, octal 52301031, decimal 11,108,889.
What flights does A98219 operate?
Mode-S A98219 has broadcast 20 distinct callsigns, including DAL1857, DAL403, DAL363, DAL556, DAL383.