Data as of Nov 13, 2026
38.46.72.0/21
256 anonymizer addresses · 13% · Datacenter proxyStacks Inc · reallocated from Cogent Communications, LLC
IPv4 market
Path
1 · Holder
record created Apr 16, 1991 · reallocated to Stacks Inc Sep 26, 2024
4 · Use
Hosting
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 38.46.72.0/21 | /24s |
|---|---|---|
| Cogent Communications, LLC | 25613% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
38.46.72.0/21
From the registry to its use
- Apr 16, 1991Registry recordCogent Communications, LLCDirect Allocation (legacy, pre-1997)38.0.0.0/8
- Jun 10, 2024– today
- Jun 20, 2024
- Jun 20, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.72.0/24
- Jun 20, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.73.0/24
- Jun 20, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.74.0/24
- Jun 20, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.75.0/24
- Jun 20, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.76.0/24
- Jun 20, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.77.0/24
- Aug 9, 2024Route objectAS398704 Stacks IncRADB route object for AS398704 Stacks Inc, maintainer MAINT-AS13153038.46.78.0/24
- Sep 26, 2024ReallocatedStacks IncReallocated38.46.72.0/21
- Sep 18, 2026– today
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Operator | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | 76,5500.46%ISP proxy, Datacenter proxy, VPN | Proxy providerssold by Oxylabs, QuarkIP, HypeProxy, Novada, Webshare, MyPrivateProxyVPN servicesoperated by Windscribe, VPN Gate | IP broker Rackdog (part) | 398,658 73,038 always on | Cogent Communications, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 38.46.79.0/24 since Aug 2024 | AS21859 | Hosting | Cogent Communications, LLC via Stacks Inc |
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 |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | 16,777,216 | COGENT-A | Cogent Communications, LLC (COGC) · US | Direct Allocation | Apr 16, 1991 | abuse@ |
| └ 38.46.72.0/21 | 2,048 | STACKS-CGNT-NET-3 | Stacks Inc (STACK-10) · US | Reallocated | Sep 26, 2024 | noc@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 1,792 | 88% | 3 | |
| Datacenter proxyanonymizer | 256 | 13% | 1 |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 38.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Apr 16, 1991
- Legacy
- yes
- Reallocated to
- Stacks Inc (STACK-10)
- Reallocated range
- 38.
46. 72. 0/ 21 - Reallocated
- Sep 26, 2024
Origin network
AS398704
US
- Name
- Stacks Inc
- Type
- Hosting
- Registered
- Aug 13, 2020
- Domain
- stacksdiscovery.com
- Website
- www.stacksinc.net
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2024
- Current origin since
- Jun 2024 · 2.4 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 38.46.72.0/24 | AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
| 38.46.73.0/24 | AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
| 38.46.74.0/24 | AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
| 38.46.75.0/24 | AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
| 38.46.76.0/24 | AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
| 38.46.77.0/24 | AS398704 | RADB | Stacks Inc | MAINT-AS131530 | Jun 20, 2024 |
| 38.46.78.0/24 | AS398704 | RADB | Stacksinc | MAINT-AS131530 | Aug 9, 2024 |
Whois
Registration for this announcement
- Range
- 38.
46. 72. 0/ 21 - Netname
- STACKS-CGNT-NET-3
- Registrant
- Stacks Inc
- Organization
- Stacks Inc (STACK-10)
- Org address
- 1665 LOGAN ST, DENVER, CO, 80203
- Org country
- US
- Type
- Reallocated
- Handle
- NET-38-46-72-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Sep 26, 2024
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- noc@
stacksinc. net - Name
- noc noc
- Phone
- +43423455
- Handle
- NOCNO72-ARIN