asn.dev

Autonomous system

AS28358 AS28358 - INTERTELCO TELECOMUNICACOES MULTIMIDIA LTDA

Unclassified APNIC

IPv4 addresses 1.79K 5 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Surf Telecom

Brazil · AI-generated

residential isp brazil telecom

AS28358 is operated by Surf Telecom.

What it's used for

  • The address space is registered under the netname 500667 with registrant SURF TELECOM S.A., indicating a consumer telecommunications provider.
  • The AS announces 2048 IPv4 addresses across 6 prefixes and 2 IPv6 prefixes, with only 2 observed neighbours, a ratio characteristic of an access or eyeball network rather than a transit provider.

Notable

  • The registrants for the majority of the announced prefixes are SURF TELECOM S.A., which aligns with the operator identity, while one prefix is registered to Abuse-C Role.
  • The address inventory consists of blocks within the 189.76.168.0/22 range and a single /24 in 45.9.119.0/24, reflecting a standard ISP allocation structure.

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, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS26615TIM S/A510
AS16735ALGAR TELECOM S/A60

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

Shape and geography

IPv4 5 prefixes · 1.79K addresses IPv6 2 prefixes

CountryNamePrefixes
BRBrazil7

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
28358
Registry name
ASN28358
Registrant
INTERTELCO TELECOMUNICAÇÕES MULTIMÍDIA LTDA
Abuse contact
rodrigo.vian@grupotelco.com.br
Registered
2007-11-14
Last changed
2013-03-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 14 with no ROA
ROAs
0 authorising AS28358
ASPA
no ASPA record
IRR
29% registered · 4 of 14 announcements
Route objects
7 naming AS28358

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 1,843 prefixes, as published 2026-11-01. 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