Data as of Nov 5, 2026
143.112.0.0/17
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC · space held by McKesson Corp.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Recent change
New origin Aug 2026
from AS10599 McKesson Corp.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 143.112.68.0/22 since Aug 2026 | AS203 | Business | McKesson Corp. |
Network & registry
Origin network
AS203
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Jun 5, 2002
- Domain
- level3.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2009
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 143.112.76.0/24 | AS10599 | ARIN | McKesson Technology | MNT-MCKESS | Jul 9, 2021 |
Whois
Registration for this announcement
- Range
- 143.
112. 0. 0/ 16 - Netname
- MCK-143-112-0-0
- 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-143-112-0-0-1
- Parent
- NET-143-0-0-0-0
- Created
- Sep 17, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 17, 1990
- Status
- assigned
Report abuse
Abuse contact
- NetworkInfrastructureTeam2@
mckesson. com - Name
- Network Infrastructure Team
- Phone
- +1-972-446-4800;extN/
A - Handle
- NIT2-ARIN