Data as of Nov 9, 2026
204.157.187.0/24
No anonymizer space · no proxy exits in 30 daysCable Atlantico SRL · space held by Cogent Communications, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
Reallocated Jun 3, 2026
to Cable Atlantico by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.157.186.0/23 since Apr 2026 | AS265721 | Residential | 36 6 always on | Cogent Communications, LLC via Cable Atlantico | |
| 204.157.0.0/16 since Jun 2005 | AS174 | Internet provider | 5,298 1,623 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 |
|---|---|---|---|---|---|---|
| 204.157.0.0/16 | 65,536 | COGENT-204-157-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Sep 21, 1994 | abuse@ |
| └ 204.157.186.0/23 | 512 | CABLE-ATLANTICO-CGNT-NET-4 | Cable Atlantico (CA-1142) · US | Reallocated | Jun 3, 2026 | — |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 204.
157. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Sep 21, 1994
- Legacy
- yes
- Reallocated to
- Cable Atlantico (CA-1142)
- Reallocated range
- 204.
157. 186. 0/ 23 - Reallocated
- Jun 3, 2026
Origin network
AS265721
DO
- Name
- Cable Atlantico SRL
- Type
- Internet provider
- Registered
- May 17, 2017
- Domain
- cableatlantico.com
- Website
- www.cableatlantico.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
- Jan 2024
- Current origin since
- Jan 2024 · 2.8 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.157.186.0/23 | AS265721 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 204.
157. 186. 0/ 23 - Netname
- CABLE-ATLANTICO-CGNT-NET-4
- Registrant
- Cable Atlantico
- Organization
- Cable Atlantico (CA-1142)
- Org address
- EPS-D 150, Miami, FL, 33191-1501
- Org country
- US
- Type
- Reallocated
- Handle
- NET-204-157-186-0-1
- Parent
- NET-204-157-0-0-1
- Created
- Jun 3, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 21, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN