Data as of Nov 7, 2026
38.129.4.0/24
18 residential-proxy exits · 30 daysLimestone Networks, Inc. · reallocated from Cogent Communications, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin May 2026
its first announcement on record
Residential-proxy exits
Proxy exits
18
7.0% of its addresses · 30 days
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
303 observations
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 404,266 78,035 always on | Cogent Communications, LLC |
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@ |
| └ 38.129.4.0/24 | 256 | LIMESTONE-NETWORKS-CGNT-NET-32 | Limestone Networks, Inc. (LIMES-2) · US | Reallocated | Apr 6, 2026 | abuse@ |
| └ 38.129.4.48/29 | 8 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.56/29 | 8 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.80/29 | 8 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.96/29 | 8 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.104/29 | 8 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.128/27 | 32 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.176/28 | 16 | LSN-DLLSTX-1 | unknown | — | — | — |
| └ 38.129.4.192/28 | 16 | LSN-DLLSTX-1 | unknown | — | — | — |
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
- Limestone Networks, Inc. (LIMES-2)
- Reallocated range
- 38.
129. 4. 0/ 24 - Reallocated
- Apr 6, 2026
Origin network
AS46475
US
- Name
- Limestone Networks, Inc.
- Type
- Hosting
- Registered
- Sep 29, 2008
- Domain
- limestonenetworks.com
- Website
- www.limestonenetworks.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 29
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2026
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46475 | ARIN | Route Registered for Cogent Communications Customer - Limestone Networks | MNT-COGC | Apr 6, 2026 |
Whois
Registration for this announcement
- Range
- 38.
129. 4. 0/ 24 - Netname
- LIMESTONE-NETWORKS-CGNT-NET-32
- Registrant
- Limestone Networks, Inc.
- Organization
- Limestone Networks, Inc. (LIMES-2)
- Org address
- 400 S. Akard Street, Dallas, TX, 75202
- Org country
- US
- Type
- Reallocated
- Handle
- NET-38-129-4-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Apr 6, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
limestonenetworks. com - Name
- Abuse
- Phone
- +1-214-586-0555
- Handle
- ABUSE1804-ARIN