Data as of Nov 11, 2026
168.183.3.0/24
No anonymizer space · no proxy exits in 30 daysCloudflare, Inc. · space held by UnitedHealth Group Incorporated
Announcement
this exact prefix
No RPKI
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin Jun 2026
from AS10879 Unitedhealthcare
Network & registry
Origin network
AS13335
US
- Name
- Cloudflare, Inc.
- Type
- Hosting
- Registered
- Jul 14, 2010
- Domain
- cloudflare.com
- Website
- www.cloudflare.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 13
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Sep 2025
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 2
- Last change of origin
- Jun 2026
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS13335 | RADB | NET-UHC-168-183-3-0-24 | MAINT-UHG | May 13, 2026 |
Whois
Registration for this announcement
- Range
- 168.
183. 0. 0/ 16 - Netname
- UHC-B2
- Registrant
- UnitedHealth Group Incorporated
- Organization
- UnitedHealth Group Incorporated (UHC-5)
- Org address
- IP & DNS Team, Plymouth, MN, 55442
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-168-183-0-0-1
- Parent
- NET-168-0-0-0-0
- Created
- May 23, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- May 23, 1994
- Status
- assigned
Report abuse
Abuse contact
- inet_
ops@ uhc. com - Name
- United Healthcare Network OC
- Phone
- +1-763-744-1588
- Handle
- UHNO-ARIN