143.112.128.0/18
Currently announced jointly by AS203 Level 3 Parent, LLC, AS10599 McKesson Corp., in the routed prefix 143.112.128.0/18.
- Current ASN
- AS203 AS10599
- Level 3 Parent, LLC
- Routed prefix
- 143.112.128.0/18
- Most specific route covering this prefix
- ASNs over time
- 2
- 2 announcement records
- RIR allocation
- ARIN
- United States · 143.112.0.0/16
Routing data · Nov 11, 2026, 18:22 UTC
ASN historyEvery routed prefix covering 143.112.128.0/18
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 143.112.128.0/18 | AS203 | Level 3 Parent, LLC |  United States | Before monitoring | 2026-11-11 18:22 | Announcing |
| 143.112.128.0/18 | AS10599 | McKesson Corp. | United States | 2026-10-23 06:22 | 2026-11-11 18:22 | Announcing |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 143.112.128.0/22 | AS203 | Level 3 Parent, LLC | United States | Before monitoring | 2026-11-11 18:22 | Announcing |
| 143.112.133.0/24 | AS203 | Level 3 Parent, LLC | United States | 2026-11-11 06:24 | 2026-11-11 18:22 | Announcing |
| 143.112.138.0/24 | AS203 | Level 3 Parent, LLC | United States | 2026-11-11 06:24 | 2026-11-11 18:22 | Announcing |
| 143.112.144.0/22 | AS203 | Level 3 Parent, LLC | United States | Before monitoring | 2026-11-11 18:22 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.