Autonomous system
AS27953 NODOSUD S.A
Unclassified LACNIC Cable/DSL/ISP
Summary
Nodosud
isp residential cable argentina
AS27953 is operated by Nodosud S.A.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS records such as
host0.186-64-72.nodosud.com.arandhost255.181-118-183.nodosud.com.ar. - The AS announces 32,768 IPv4 addresses across 9 prefixes and 15 IPv6 prefixes, maintaining 11 observed neighbours, a ratio consistent with an access provider rather than a transit hub.
Notable
- All registrants for the announced prefixes are listed as NODOSUD S.A, matching the AS holder name.
- The address inventory consists of nine distinct IPv4 blocks ranging from /19 to /21 sizes, all registered to the same entity.
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 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 32.77K addresses IPv6 19 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AR | Argentina | 28 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
AS27953- Registry name
- 27953
- Registrant
- NODOSUD S.A
- Abuse contact
- jlsilvera@nodosud.com.ar
- Registered
- 2008-01-21
- Last changed
- 2018-04-19
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Nodosud S.A.
- Also known as
- Nodosud SA
- Network type
- Cable/DSL/ISP
- Scope
- South America
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-NODOSUD- Website
- http://www.nodosud.com.ar
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 148 valid, 0 with no ROA
- ROAs
- 12 authorising AS27953
- ASPA
- no ASPA record
- IRR
- 100% registered · 148 of 148 announcements
- Route objects
- 14 naming AS27953
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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