Autonomous system
AS19889 Cooperativa Telefonica Del Viso
Unclassified LACNIC
Summary
Telviso
residential isp cable dsl
AS19889 is operated by Cooperativa Telefonica Del Viso, commonly known as Telviso.
What it's used for
- The address space carries residential broadband access, evidenced by reverse DNS entries such as
254.151.3.190.dsl.dynamic.telviso.net.arand254.215.57.190.dsl.dynamic.telviso.net.ar. - The AS announces 40960 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, while maintaining only 8 observed neighbours, a ratio indicative of an access network rather than a transit provider.
Notable
- All available registrants for the announced prefixes are listed as Cooperativa Telefonica Del Viso, matching the AS holder.
- The operator is identified in secondary sources as a regional Cable/DSL/ISP in Argentina.
- The inventory consists of five /19 IPv4 blocks and a single /32 IPv6 prefix, representing a substantial but focused residential allocation.
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 5 prefixes · 40.96K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AR | Argentina | 6 |
Registry
Allocation record
- Registry
- LACNIC
- Registered
- 2001-02-27
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 249 valid, 0 with no ROA
- ROAs
- 6 authorising AS19889
- ASPA
- no ASPA record
- IRR
- 100% registered · 249 of 249 announcements
- Route objects
- 13 naming AS19889
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: 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