asn.dev

Autonomous system

AS27813 Teledifusora S.A.

Unclassified LACNIC

IPv4 addresses 39.17K 24 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly AR
Exchanges 0 recorded by PCH
Upstreams 2 1 downstream
Flagged prefixes 0 none

Summary

Teledifusora S.A.

Argentina · AI-generated

residential isp argentina cable

AS27813 is operated by Teledifusora S.A., a major Argentine cable television and internet service provider.

What it's used for

  • The address space carries residential and business internet traffic, evidenced by reverse DNS entries pointing to express.com.ar (e.g., 254.87.51.38.stacm.express.com.ar, 254.119.2.190.ros.express.com.ar).
  • With 38,912 IPv4 addresses announced across 26 prefixes and only 4 observed neighbours, the high address-to-neighbour ratio indicates an access/eyeball network rather than a transit provider.

Notable

  • Registrants for the majority of prefixes are Teledifusora S.A., with netnames such as TELEDIFUSORA-CGNT-NET-1 and TESA-CGNT-NET-1; one prefix (138.186.212.0/22) is registered to G2K ARGENTINA S.A..
  • The inventory is finely subdivided into many /22 and /24 blocks, consistent with site-by-site segmentation for a large cable operator.
  • The AS has been observed in routing tables since 2006.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 1 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC8,001
AS7303Argentina S.A.1,908

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 24 prefixes · 39.17K addresses IPv6 2 prefixes

CountryNamePrefixes
ARArgentina26

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
AS27813
Registry name
27813
Registrant
Teledifusora S.A.
Abuse contact
noc@corp.express.com.ar
Registered
2006-03-16
Last changed
2011-07-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
65% valid · 112 valid, 59 with no ROA
ROAs
11 authorising AS27813
ASPA
no ASPA record
IRR
98% registered · 167 of 171 announcements 1 other origin
Route objects
15 naming AS27813

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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

Cross-check