asn.dev

Autonomous system

AS28636 CDI TELECOM

Unclassified LACNIC

IPv4 addresses 5.12K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 3 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

CDI Telecom

Brazil · AI-generated

isp residential cable dsl

AS28636 is operated by CDI Telecom, a regional cable and DSL provider in Brazil.

What it's used for

  • The address space carries residential customer traffic, evidenced by reverse DNS entries such as cliente.cditelecom.net.br and 170.150.68.128.g4sc.net.br.
  • The network announces 5120 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with only 3 observed neighbours, indicating a local access network rather than a transit provider.

Notable

  • Registrants include CDI TELECOM for the 170.150.70.0/23 block and G4 SC TELECOMUNICACOES LTDA for the 170.150.68.0/23 block, suggesting a relationship or lease between the two entities.
  • The inventory consists of three IPv4 prefixes: 179.97.112.0/20, 170.150.68.0/23, and 170.150.70.0/23, alongside the IPv6 prefix 2804:dc8::/32.

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 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.208.167
IX.br (PTT.br) FortalezaFortaleza, Brazil45.68.76.143
IX.br (PTT.br) FlorianópolisFlorianópolis, Brazil200.219.141.92

Transit providers

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

ASNetworkPaths seen
AS14840BR.Digital Telecom490
AS53062GGNET TELECOMUNICACOES LTDA67
AS24482SG.GS14
AS35280F5 Networks SARL12
AS37721Virtual Technologies & Solutions12

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

Shape and geography

IPv4 2 prefixes · 5.12K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil3

Registry

Allocation record

LACNIC · via Atlas (registry data)
Registry
LACNIC
Registered
2013-05-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 22 valid, 0 with no ROA
ROAs
4 authorising AS28636
ASPA
no ASPA record
IRR
100% registered · 22 of 22 announcements
Route objects
6 naming AS28636

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: 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

Cross-check