Autonomous system
AS27751 Neunet S.A.
Residential RIPE Cable/DSL/ISP
Summary
Neunet
residential isp fiber dsl
AS27751 is operated by Neunet S.A., a regional internet service provider in Argentina.
What it's used for
- The address space carries residential broadband access, with reverse DNS entries explicitly identifying
xdslandftth(fiber-to-the-home) endpoints, such asxdsl255-239-centenario.neunet.com.arandftth-255-169-centenario.ctc8309.com.ar. - The network announces 21,504 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, while maintaining only 6 observed routing neighbours; this high address-to-neighbour ratio indicates an access network rather than a transit provider.
Notable
- Registrants for the largest prefixes are unavailable due to fetch failures, but the available registrant for
190.121.176.0/20is Neunet S.A., matching the AS holder. - The prefix
179.49.168.0/22is registered toCOOPERATIVA DE PROVISION DE SERVICIOS TELEFONICOS Y OTROS SERVICIOS PUBLICOS Y COMUNITARIOS DE CENTENARIO LIMITADA, a cooperative entity whose reverse DNS (ctc8309.com.ar) aligns with the Neunet/CTC branding. - The inventory consists of four distinct IPv4 blocks, including two /19s and one /20, alongside a single /32 IPv6 prefix.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| CABASE IXP Neuquén | Neuquén, Argentina | 200.0.19.4 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 21.50K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AR | Argentina | 6 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS27751- Registry name
- 27751
- Registrant
- Neunet S.A.
- Abuse contact
- luis.alberto.alcaraz@ctcdatos.com.ar
- Registered
- 2004-07-12
- Last changed
- 2004-11-18
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Neunet
- Also known as
- CTC
- Network type
- Cable/DSL/ISP
- Scope
- South America
- Traffic ratio
- Balanced
- Peering policy
- Open
- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- http://www.neunet.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 · 81 valid, 0 with no ROA
- ROAs
- 8 authorising AS27751
- ASPA
- no ASPA record
- IRR
- 100% registered · 81 of 81 announcements
- Route objects
- 8 naming AS27751
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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