Blocks sold in pieces · IPv4 · 65,536 addresses
161.97.0.0/16
Sold in pieces
- Seller
- Boulder Valley School District (BVSD)
- Pieces
- 3 since 2008-12-01, the latest on 2020-05-07
- Share sold
- 51% (33,280 of 65,536 addresses)
- Buyers
- Aurora Public Schools, Contabo GmbH, Longmont Power & Communications
Now
- ARIN statistics
- Allocated (dated 1992-06-23), allocated (dated 2016-08-18), reserved (US), in the latest file
The block as ARIN's statistics listed it on 2008-11-27 or the day before a piece was transferred, whichever is larger. Registries often list what's left in smaller records after a sale.
The pieces
| Date | Piece | What happened | From | To |
|---|---|---|---|---|
| 2016-08-18 | 161.97.192.0/18 | Intra-ARIN transfer | Boulder Valley School District (BVSD) ARIN | Longmont Power & Communications ARIN |
| 2017-06-30 | 161.97.190.0/23 | Intra-ARIN transfer | Boulder Valley School District (BVSD) ARIN | Aurora Public Schools ARIN |
| 2020-05-07 | 161.97.64.0/18 | Transfer out of ARIN | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC |
Transfer records (14)
| Date (UTC) | Log | Type | Range moved | From | To |
|---|---|---|---|---|---|
| RIPE NCC | Resource transfer | 161.97.64.0/18 | (no name given) ARIN | Contabo GmbH RIPE NCC | |
| RIPE NCC | Resource transfer | 161.97.128.0/19 | (no name given) ARIN | Contabo GmbH RIPE NCC | |
| RIPE NCC | Resource transfer | 161.97.160.0/20 | (no name given) ARIN | Contabo GmbH RIPE NCC | |
| RIPE NCC | Resource transfer | 161.97.176.0/21 | (no name given) ARIN | Contabo GmbH RIPE NCC | |
| RIPE NCC | Resource transfer | 161.97.184.0/22 | (no name given) ARIN | Contabo GmbH RIPE NCC | |
| RIPE NCC | Resource transfer | 161.97.188.0/23 | (no name given) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.64.0/18 | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.128.0/19 | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.160.0/20 | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.176.0/21 | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.184.0/22 | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.188.0/23 | Boulder Valley School District (BVSD) ARIN | Contabo GmbH RIPE NCC | |
| ARIN | Resource transfer | 161.97.190.0/23 | Boulder Valley School District (BVSD) ARIN | Aurora Public Schools ARIN | |
| ARIN | Resource transfer | 161.97.192.0/18 | Boulder Valley School District (BVSD) ARIN | Longmont Power & Communications ARIN |
Every record in the registries' transfer logs that moved any part of this block. A transfer between two registries is in both logs.