Data as of Nov 11, 2026
121.91.232.0/23
Anonymizer · ISP proxyWindstream Communications LLC · space held by Rackdog, LLC
IPv4 market
Path
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 121.91.232.0/23 | /24s |
|---|---|---|
| Rackdog | 512100% | 2 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
121.91.232.0/23
From the registry to its use
- Dec 21, 2020Registry recordRackdog, LLCDirect Allocation121.91.208.0 - 121.91.255.255
- Jan 16, 2022– Jun 3, 2023
- Sep 18, 2023ReallocatedCable & FiberlinkReallocated121.91.224.0/19
- Nov 8, 2025– today
- todayLeased fromRackdogIP broker
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 121.91.232.0/24 since Nov 2025 | AS7029 | ISP proxy | IP broker Rackdog | Rackdog, LLC via Cable & Fiberlink |
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 |
|---|---|---|---|---|---|---|
| 121. | 12,288 | NET-121-91-208-0 | Rackdog, LLC (RL-859) · US | Direct Allocation | Dec 21, 2020 | contact@ |
| └ 121.91.224.0/19 | 8,192 | RACKDOG | Cable & Fiberlink (MIL-167) · US | Reallocated | Sep 18, 2023 | ipoperations@ |
Network & registry
IPv4 market
Holder
- Organization
- Rackdog, LLC
- Handle
- RL-859
- Range
- 121.
91. 208. 0 - 121. 91. 255. 255 - Registration type
- Direct Allocation
- Record created
- Dec 21, 2020
- Reallocated to
- Cable & Fiberlink (MIL-167)
- Reallocated range
- 121.
91. 224. 0/ 19 - Reallocated
- Sep 18, 2023
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
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Jan 2022
- Current origin since
- Nov 2025 · 1.0 yr
- Origin networks
- 2
- Last change of origin
- Nov 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.91.224.0/19 | AS701 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS4637 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS6079 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS7018 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS7029 | /24 | ARIN | RPKI valid |
| 121.91.224.0/19 | AS7922 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS9304 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS11404 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS42689 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS398465 | /24 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 121.
91. 224. 0/ 19 - Netname
- RACKDOG
- Registrant
- Cable & Fiberlink
- Organization
- Cable & Fiberlink (MIL-167)
- Org address
- 425 HUEHL RD BLDG 4B, Northbrook, IL, 60062
- Org country
- US
- Type
- Reallocated
- Handle
- NET-121-91-224-0-1
- Parent
- NET-121-91-208-0-1
- Created
- Sep 18, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 21, 2020
- Status
- assigned
Report abuse
Abuse contact
- ipoperations@
cablefiberlink. com - Name
- CABLE AND FIBERLINK
- Phone
- +1-224-803-4912
- Handle
- CABLE66-ARIN