Data as of Nov 13, 2026
131.143.66.0/23
Anonymizer · ISP proxyWindstream Communications LLC · space held by Rosier Official
Announcement
this exact prefix
No RPKI
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Nov 11, 2026
its first announcement on record
IPv4 market
Path
Announced by AS7029 since Nov 11, 2026 · 2 days ago
Operators, sellers and brokers
Proxy providers
| Name | Parent | In 131.143.66.0/23 | /24s |
|---|---|---|---|
| Midwest Cable | 512100% | 2 |
Leased from
Owners leasing their own space
| Name | In 131.143.66.0/23 | /24s |
|---|---|---|
| Rosier Official | 512100% | 2 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
131.143.66.0/23
From the registry to its use
- Oct 3, 2025– today
- Oct 7, 2025Registry recordRosier OfficialDirect Allocation131.143.64.0/22
- Apr 1, 2026– Apr 12, 2026
- Nov 11, 2026– today
- todayUsedMidwest CableProxy operator
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.143.64.0/22 since Oct 2025 | AS5650 | ISP proxy | Rosier Official |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 131.143.64.0/22 | 1,024 | CELLUAR-MOBILE | Rosier Official (RO-167) · US | Direct Allocation | Oct 7, 2025 | rrp1399@ |
| └ 131.143.64.0/22 | 1,024 | COOK-TECHNICAL-INSTITUTE | Cook Technical Institute (C11526896) · US | Reassigned | Feb 26, 2026 | rrp1399@ via CELLUAR-MOBILE |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Rosier Official
- Handle
- RO-167
- Range
- 131.
143. 64. 0/ 22 - Registration type
- Direct Allocation
- Record created
- Oct 7, 2025
Origin network
AS7029
US
- Name
- Windstream Communications LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- Domain
- uniti.com
- Website
- www.uniti.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 11, 2026
- Current origin since
- Nov 11, 2026 · under a month
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 131.
143. 64. 0/ 22 - Netname
- COOK-TECHNICAL-INSTITUTE
- Registrant
- Cook Technical Institute
- Organization
- Cook Technical Institute (C11526896)
- Type
- Reassigned
- Handle
- NET-131-143-64-0-2
- Parent
- NET-131-143-64-0-1
- Created
- Feb 26, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 7, 2025
- Status
- assigned
Report abuse
Abuse contact
- rrp1399@
icloud. com - Name
- Admin
- Phone
- +1-224-303-0904
- Handle
- ADMIN8154-ARIN