Blocks sold in pieces · IPv4 · 4,096 addresses
209.162.208.0/20
Sold in pieces
- Seller
- Digital Fortress
- Pieces
- 4 since 2026-01-01, the latest on 2026-07-28
- Share sold
- 94% (3,840 of 4,096 addresses)
- Buyers
- Concentra Health Services, Inc., NT Spark, LLC, Neubox, TensorWave Inc.
Now
- ARIN statistics
- Allocated (dated 1997-11-17), allocated (dated 2026-06-12), allocated (dated 2026-07-14), allocated (dated 2026-07-17), allocated (dated 2026-07-28) on 2026-10-09 (US)
The block as ARIN's statistics listed it on 2025-12-31 or the day before a piece was transferred, whichever is larger. ARIN often lists what's left in smaller records after a sale.
The pieces
| Date | Piece | What happened | From | To |
|---|---|---|---|---|
| 2026-06-12 | 209.162.216.0/22 | Intra-ARIN transfer | Digital Fortress ARIN | TensorWave Inc. ARIN |
| 2026-07-14 | 209.162.208.0/21 | Intra-ARIN transfer | Digital Fortress ARIN | NT Spark, LLC ARIN |
| 2026-07-17 | 209.162.222.0/23 | Intra-ARIN transfer | Digital Fortress ARIN | Neubox ARIN |
| 2026-07-28 | 209.162.221.0/24 | Intra-ARIN transfer | Digital Fortress ARIN | Concentra Health Services, Inc. ARIN |
Transfer records (5)
| Date (UTC) | Type | Range moved | From | To |
|---|---|---|---|---|
| Resource transfer | 209.162.221.0/24 | Digital Fortress ARIN | Concentra Health Services, Inc. ARIN | |
| Resource transfer | 209.162.222.0/23 | Digital Fortress ARIN | Neubox ARIN | |
| Resource transfer | 209.162.208.0/21 | Digital Fortress ARIN | NT Spark, LLC ARIN | |
| Resource transfer | 209.162.216.0/22 | Digital Fortress ARIN | TensorWave Inc. ARIN | |
| Merger acquisition | 209.162.208.0/20 | Atmosera, Inc. ARIN | Digital Fortress ARIN |
Every record in ARIN's transfer log that moved any part of this block, back to 2009.