Autonomous system
AS28066 COOP. MARIANO ACOSTA
Residential LACNIC
Summary
Cooperativa Telefónica Mariano Acosta
residential isp cooperative fiber
AS28066 is operated by Cooperativa Telefónica Mariano Acosta, a regional telecommunications cooperative in Argentina.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS records pointing to
static.amc.com.ar. - The AS announces 9216 IPv4 addresses across 4 prefixes and maintains 4 observed neighbours, a ratio consistent with an access network providing connectivity to end-users rather than transit.
Notable
- All four announced prefixes are registered to
COOP. MARIANO ACOSTA, matching the AS holder exactly. - The operator is a cooperative that celebrated its 40th anniversary in March 2026, serving the Marcos Paz area with fiber optic and DSL services.
- The inventory consists of four distinct IPv4 blocks with no IPv6 prefixes announced, reflecting a legacy IPv4-centric deployment.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 9.22K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AR | Argentina | 4 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
AS28066- Registry name
- 28066
- Registrant
- COOP. MARIANO ACOSTA
- Abuse contact
- abuse@marianoacosta.coop
- Registered
- 2009-07-03
- Last changed
- 2009-07-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 4 authorising AS28066
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 18 naming AS28066
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere