Data as of Nov 8, 2026
206.203.80.0/24
No anonymizer space · no proxy exits in 30 daysUS Oncology, Inc. · space held by McKesson Corp.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 206.203.64.0/18 since Aug 2026 | AS203 | Business | McKesson Corp. |
Network & registry
Origin network
AS27451
US
- Name
- US Oncology, Inc.
- Type
- Business
- Registered
- Mar 10, 2003
- Domain
- usoncology.com
- Industry
- Health Care Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2019
- Current origin since
- Apr 2019 · 7.6 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 206.
203. 64. 0/ 18 - Netname
- CPG-REMOTE
- Registrant
- McKesson Corp.
- Organization
- McKesson Corp. (MCKESS)
- Org address
- 6535 N. State Highway 161, Irving, TX, 75039
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-206-203-64-0-1
- Parent
- NET-206-0-0-0-0
- Created
- Aug 2, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 2, 1995
- Status
- assigned
Report abuse
Abuse contact
- NetworkInfrastructureTeam2@
mckesson. com - Name
- Network Infrastructure Team
- Phone
- +1-972-446-4800;extN/
A - Handle
- NIT2-ARIN