asn.dev

Autonomous system

AS61638 AS61638 - Impactnet Telecomunicacoes LTDA

Unclassified ARIN

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Impactnet Telecomunicacoes LTDA

Brazil · AI-generated

isp residential brazil telecom

AS61638 is operated by Impactnet Telecomunicacoes LTDA.

What it's used for

  • The address space carries subscriber traffic, evidenced by reverse DNS entries pointing to impactus.net.br (e.g., 131-100-137-0.impactus.net.br).
  • The AS announces 1024 IPv4 addresses and 17 IPv6 prefixes, with only 2 observed neighbours, indicating a local access or eyeball network rather than a transit provider.
  • Traffic from this AS consists of residential and small business internet access provided by a regional telecommunications operator in Minas Gerais, Brazil.

Notable

  • The registrant for the announced prefix 131.100.136.0/22 is Impactnet Telecomunicacoes LTDA, matching the AS holder.
  • The company operates under the trade name Impactusnet, as indicated by the reverse DNS domain and secondary registry data.
  • The IPv4 inventory consists of a single /22 block, while the IPv6 inventory is more granular with multiple prefixes under the 2804:1c1c::/35 range.

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

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS266525Eurocorp Vialux Internet Eireli400

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-14, 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 1 prefixes · 1.02K addresses IPv6 3 prefixes

CountryNamePrefixes
BRBrazil4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
61638
Registry name
ASN61638
Registrant
Impactnet Telecomunicacoes LTDA
Abuse contact
NOC Maxis Telecom
Registered
2014-08-18
Last changed
2025-04-28
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
2 authorising AS61638
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
2 naming AS61638

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: 455 networks and 1,849 prefixes, as published 2026-11-14. 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