sensors Mode-S transponder
A55414
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N442WW · operated by WATTERS FAMILY WEST COAST LLC
- Hex
- A55414
- Octal
- 51252024
- Decimal
- 10,834,964
- Country
- US
- Tail
- N442WW
- Type
- GLF4
- Flights observed
- 73
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 12h ago
Last known position
Country allocation
The ICAO 24-bit address A55414 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 |
|---|---|---|---|
| BLK71 | Westcoast Energy | 6 | 2026-05-21 |
| BLK0070 | Westcoast Energy | 5 | 2026-05-11 |
| BLK80 | Westcoast Energy | 4 | 2026-05-23 |
| BLK2148 | - | 3 | 2026-04-15 |
| BLK177 | - | 3 | 2026-07-12 |
| BLK2941 | Westcoast Energy | 2 | 2026-04-16 |
| BLK2135 | - | 2 | 2026-04-15 |
| BLK2134 | Westcoast Energy | 2 | 2026-04-14 |
| BLK173 | - | 2 | 2026-07-15 |
| BLK171 | Westcoast Energy | 2 | 2026-07-17 |
| BLK170 | - | 2 | 2026-07-16 |
| BLK0081 | Westcoast Energy | 2 | 2026-04-20 |
| BLK0071 | Westcoast Energy | 2 | 2026-05-14 |
| BLK9171 | - | 1 | 2026-07-06 |
| BLK83 | Westcoast Energy | 1 | 2026-05-26 |
| BLK81 | Westcoast Energy | 1 | 2026-04-27 |
| BLK72 | Westcoast Energy | 1 | 2026-04-30 |
| BLK700 | - | 1 | 2026-05-18 |
| BLK2989 | - | 1 | 2026-07-01 |
| BLK2988 | - | 1 | 2026-07-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | BLK110 | - | Jul 17, 23:10 UTC | Jul 18, 00:35 UTC | 1h 25m |
| 2026-07-17 | BLK171 | TEB → VNY | Jul 17, 15:55 UTC | Jul 17, 21:00 UTC | 5h 5m |
| 2026-07-16 | BLK170 | VNY → TEB | Jul 16, 15:49 UTC | Jul 16, 21:10 UTC | 5h 20m |
| 2026-07-15 | BLK173 | - | Jul 15, 18:10 UTC | Jul 15, 23:10 UTC | 5h 0m |
| 2026-07-14 | BLK2219 | - | Jul 14, 16:45 UTC | Jul 14, 21:45 UTC | 5h 0m |
| 2026-07-14 | BLK2965 | VNY → SNA | Jul 14, 14:10 UTC | Jul 14, 14:35 UTC | 25m |
| 2026-07-12 | BLK173 | - | Jul 12, 20:20 UTC | Jul 13, 01:10 UTC | 4h 50m |
| 2026-07-12 | BLK177 | - | Jul 12, 15:35 UTC | Jul 12, 18:55 UTC | 3h 20m |
| 2026-07-11 | BLK177 | - | Jul 11, 19:20 UTC | Jul 12, 18:55 UTC | 23h 35m |
| 2026-07-11 | BLK177 | - | Jul 11, 18:40 UTC | Jul 12, 17:01 UTC | 22h 20m |
| 2026-07-11 | BLK2246 | - | Jul 11, 17:00 UTC | Jul 11, 17:35 UTC | 35m |
| 2026-07-10 | BLK2904 | - | Jul 10, 19:35 UTC | Jul 10, 20:05 UTC | 30m |
| 2026-07-10 | BLK2290 | - | Jul 10, 02:00 UTC | Jul 10, 07:40 UTC | 5h 40m |
| 2026-07-09 | BLK2903 | - | Jul 9, 23:55 UTC | Jul 10, 01:10 UTC | 1h 15m |
| 2026-07-09 | BLK170 | VNY → TEB | Jul 9, 16:15 UTC | Jul 9, 20:55 UTC | 4h 40m |
| 2026-07-06 | BLK171 | TEB → VNY | Jul 6, 18:00 UTC | Jul 6, 23:10 UTC | 5h 10m |
| 2026-07-06 | BLK9171 | - | Jul 6, 15:35 UTC | Jul 6, 16:10 UTC | 35m |
| 2026-07-06 | BLK2984 | - | Jul 6, 00:05 UTC | Jul 6, 04:10 UTC | 4h 5m |
| 2026-07-05 | BLK2257 | - | Jul 5, 14:05 UTC | Jul 5, 18:15 UTC | 4h 10m |
| 2026-07-02 | BLK2256 | - | Jul 2, 16:35 UTC | Jul 2, 20:45 UTC | 4h 10m |
| 2026-07-01 | BLK2989 | - | Jul 1, 23:05 UTC | Jul 1, 23:55 UTC | 50m |
| 2026-07-01 | BLK2264 | - | Jul 1, 16:55 UTC | Jul 1, 17:45 UTC | 50m |
| 2026-07-01 | BLK2988 | - | Jul 1, 14:55 UTC | Jul 1, 15:20 UTC | 25m |
| 2026-06-28 | BLK2173 | MSP → OAK | Jun 28, 05:15 UTC | Jun 28, 08:55 UTC | 3h 40m |
| 2026-06-27 | BLK2172 | LAS → MSP | Jun 27, 11:14 UTC | Jun 27, 13:40 UTC | 2h 25m |
| 2026-06-27 | BLK2171 | VNY → LAS | Jun 27, 06:44 UTC | Jun 27, 07:30 UTC | 45m |
| 2026-05-26 | BLK83 | OGG → VNY | May 26, 02:44 UTC | May 26, 03:19 UTC | 35m |
| 2026-05-23 | BLK80 | VNY → OGG | May 23, 23:00 UTC | May 23, 23:30 UTC | 30m |
| 2026-05-23 | BLK80 | VNY → OGG | May 23, 18:00 UTC | May 23, 18:35 UTC | 35m |
| 2026-05-21 | BLK71 | TEB → VNY | May 21, 19:00 UTC | May 22, 00:45 UTC | 5h 45m |
| 2026-05-18 | BLK700 | VNY → TEB | May 18, 15:15 UTC | May 18, 19:55 UTC | 4h 39m |
| 2026-05-17 | BLK2206 | CMH → VNY | May 17, 01:55 UTC | May 17, 06:15 UTC | 4h 20m |
| 2026-05-15 | BLK2192 | VNY → CMH | May 15, 19:25 UTC | May 15, 23:20 UTC | 3h 55m |
| 2026-05-14 | BLK0071 | TEB → VNY | May 14, 18:15 UTC | May 14, 23:35 UTC | 5h 20m |
| 2026-05-12 | BLK2212 | OBE → TEB | May 12, 21:40 UTC | May 12, 23:55 UTC | 2h 15m |
| 2026-05-12 | BLK2193 | TEB → OBE | May 12, 15:25 UTC | May 12, 17:50 UTC | 2h 25m |
| 2026-05-11 | BLK0070 | VNY → TEB | May 11, 15:25 UTC | May 11, 20:05 UTC | 4h 40m |
| 2026-05-07 | BLK0071 | TEB → VNY | May 7, 16:55 UTC | May 7, 22:30 UTC | 5h 35m |
| 2026-05-07 | BLK2182 | BOS → TEB | May 7, 00:45 UTC | May 7, 01:50 UTC | 1h 5m |
| 2026-05-06 | BLK2181 | TEB → BOS | May 6, 17:40 UTC | May 6, 18:20 UTC | 40m |
| 2026-05-04 | BLK0072 | VNY → TEB | May 4, 16:00 UTC | May 4, 20:25 UTC | 4h 26m |
| 2026-05-04 | BLK2909 | VNY → SJC | May 4, 14:25 UTC | May 4, 14:55 UTC | 30m |
| 2026-05-04 | BLK2128 | TEB → SNA | May 4, 00:05 UTC | May 4, 05:50 UTC | 5h 45m |
| 2026-05-03 | BLK2914 | BLM → TEB | May 3, 05:40 UTC | May 3, 06:00 UTC | 20m |
| 2026-05-03 | BLK2161 | BKL → BLM | May 3, 03:45 UTC | May 3, 04:55 UTC | 1h 10m |
| 2026-05-01 | BLK2163 | BLM → BKL | May 1, 18:25 UTC | May 1, 19:40 UTC | 1h 15m |
| 2026-05-01 | BLK2913 | BLM → TEB | May 1, 16:30 UTC | May 1, 16:55 UTC | 25m |
| 2026-04-30 | BLK72 | VNY → TEB | Apr 30, 16:05 UTC | Apr 30, 20:35 UTC | 4h 30m |
| 2026-04-27 | BLK81 | OGG → VNY | Apr 27, 02:15 UTC | Apr 27, 02:45 UTC | 30m |
| 2026-04-25 | BLK80 | VNY → OGG | Apr 25, 18:10 UTC | Apr 25, 18:45 UTC | 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 N442WW page for operator, model, and routing details .