Blocks sold in pieces · IPv4 · 16,384 addresses
72.51.0.0/18
Sold in pieces
- Seller
- Aptum Technologies
- Pieces
- 4 since 2008-12-01, the latest on 2026-01-06
- Share sold
- 25% (4,096 of 16,384 addresses)
- Buyers
- Dynu Systems Incorporated, Farmers Mutual Telephone Company, IQ Fiber, Nucleus
Now
- ARIN statistics
- Allocated (dated 2005-07-05), allocated (dated 2025-07-21), allocated (dated 2025-08-05), allocated (dated 2025-12-04), allocated (dated 2026-01-06) (CA, 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 |
|---|---|---|---|---|
| 2025-07-21 | 72.51.56.0/22 | Intra-ARIN transfer | Aptum Technologies ARIN | Dynu Systems Incorporated ARIN |
| 2025-08-05 | 72.51.0.0/22 | Intra-ARIN transfer | Aptum Technologies ARIN | Farmers Mutual Telephone Company ARIN |
| 2025-12-04 | 72.51.52.0/22 | Intra-ARIN transfer | Aptum Technologies ARIN | Nucleus ARIN |
| 2026-01-06 | 72.51.12.0/22 | Intra-ARIN transfer | Aptum Technologies ARIN | IQ Fiber ARIN |
Transfer records (4)
| Date (UTC) | Log | Type | Range moved | From | To |
|---|---|---|---|---|---|
| ARIN | Resource transfer | 72.51.12.0/22 | Aptum Technologies ARIN | IQ Fiber ARIN | |
| ARIN | Resource transfer | 72.51.52.0/22 | Aptum Technologies ARIN | Nucleus ARIN | |
| ARIN | Resource transfer | 72.51.0.0/22 | Aptum Technologies ARIN | Farmers Mutual Telephone Company ARIN | |
| ARIN | Resource transfer | 72.51.56.0/22 | Aptum Technologies ARIN | Dynu Systems Incorporated ARIN |
Every record in the registries' transfer logs that moved any part of this block. A transfer between two registries is in both logs.