asn.dev

Autonomous system

AS28597 SERASA S.A

Unclassified APNIC

IPv4 addresses 3.07K 6 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Serasa

Brazil · AI-generated

business corporate brazil

The AS handle SERASA S.A is held by Serasa, a major Brazilian credit reporting and data analytics company.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the reverse DNS record teste240.serasa.com.br and the consistent registrant name SERASA S.A across all available prefixes.
  • The network announces 3072 IPv4 addresses across 6 prefixes with only 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access provider.

Notable

  • All available RDAP registrants match the AS holder, consistently listing SERASA S.A with the netname 62165.
  • The inventory consists of six contiguous IPv4 blocks within the 200.234.240.0/22 range, reflecting a finely subdivided internal corporate network.

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

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

ASNetworkPaths seen
AS10429TELEFONICA BRASIL S.A540
AS3356Level 3 Parent, LLC309
AS19551Incapsula Inc116

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 6 prefixes · 3.07K addresses IPv6 0 prefixes

CountryNamePrefixes
BRBrazil6

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
28597
Registry name
ASN28597
Registrant
SERASA S.A
Abuse contact
ssinternet@br.experian.com
Registered
2005-08-15
Last changed
2013-03-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 16 with no ROA
ROAs
0 authorising AS28597
ASPA
no ASPA record
IRR
0% registered · 0 of 16 announcements
Route objects
0 naming AS28597

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 1,845 prefixes, as published 2026-10-31. 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