Data as of Nov 6, 2026
121.91.248.0/21
Anonymizer · ISP proxyWave Broadband · 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 121.91.248.0/21 | /24s |
|---|---|---|
| Rackdog | 2,048100% | 8 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
121.91.248.0/21
From the registry to its use
- Dec 21, 2020Registry recordRackdog, LLCDirect Allocation121.91.208.0 - 121.91.255.255
- Sep 18, 2023ReallocatedCable & FiberlinkReallocated121.91.224.0/19
- Jan 18, 2024– Jul 15, 2024
- Jun 13, 2024Route objectRackdogRADB route object for AS6079 RCN, maintainer MAINT-AS398465
- Jul 4, 2024– Sep 25, 2024
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.248.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.249.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.250.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.251.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.252.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.253.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.254.0/24
- Aug 15, 2024Route objectRackdogRADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465121.91.255.0/24
- Sep 14, 2024– today
- todayLeased fromRackdogIP broker
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
AS11404
US
- Name
- Wave Broadband
- Type
- Internet provider
- Registered
- Mar 28, 2007
- Domain
- wavebroadband.com
- Website
- business.wavebroadband.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jan 2024
- Current origin since
- Sep 2024 · 2.1 yr
- Origin networks
- 3
- Last change of origin
- Jul 2024
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 | Another network |
| 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 | RPKI valid |
| 121.91.224.0/19 | AS42689 | /24 | ARIN | Another network |
| 121.91.224.0/19 | AS398465 | /24 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6079 not the origin | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 121.91.248.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.249.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.250.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.251.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.252.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.253.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.254.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
| 121.91.255.0/24 | AS398465 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
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