asn.dev

Autonomous system

AS28618 Linktel Telecom do Brasil Ltda

Unclassified APNIC

IPv4 addresses 12.54K 8 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 1 recorded by PCH
Upstreams 8 0 downstream
Flagged prefixes 0 none

Summary

Linktel

Brazil · AI-generated

isp cable dsl brazil

AS28618 is operated by Linktel Telecom do Brasil Ltda.

What it's used for

  • The address space carries corporate and network operations infrastructure, evidenced by reverse DNS entries such as 201-54-247-254-corp-bre.linktel.net.br and multiple noc-bre.linktel.net.br pointers.
  • The AS announces 12,544 IPv4 addresses across 8 prefixes and maintains 29 observed neighbours, a ratio consistent with a regional access or ISP provider rather than a large transit hub.

Notable

  • All available RDAP registrants for the announced prefixes are listed as Linktel Telecom do Brasil Ltda, matching the AS holder.
  • The inventory is dominated by a single large /19 block (201.54.224.0/19) alongside a cluster of smaller /22, /23, and /24 blocks within the 177.152.128.0/21 range, indicating a consolidated corporate estate.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.218.129

Transit providers

8 upstream, 0 downstream and 10 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS22381SAMM TECNOLOGIA E TELECOMUNICACOES S.A1,306
AS6939Hurricane Electric LLC500
AS61795Arion Servicos de Telecomunicacoes LTDA177
AS28186ITS TELECOMUNICACOES LTDA60
AS14840BR.Digital Telecom58
AS24482SG.GS45
AS35280F5 Networks SARL20
AS37721Virtual Technologies & Solutions20

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 8 prefixes · 12.54K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil9

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
28618
Registry name
ASN28618
Registrant
Linktel Telecom do Brasil Ltda
Abuse contact
hostmaster@linktelwifi.com
Registered
2005-11-24
Last changed
2013-03-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 52 with no ROA
ROAs
0 authorising AS28618
ASPA
no ASPA record
IRR
100% registered · 52 of 52 announcements
Route objects
43 naming AS28618

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 1,783 prefixes, as published 2026-10-20. 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