asn.dev

Autonomous system

AS28261 EMPRESA SERGIPANA DE TECNOLOGIA DA INFORMACAO

Unclassified APNIC

IPv4 addresses 3.58K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 1 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Empresa Sergipana de Tecnologia da Informação

Brazil · AI-generated

government telecom brazil

AS28261 is operated by Empresa Sergipana de Tecnologia da Informação.

What it's used for

  • The address space is registered under the netname 123553 with the registrant EMPRESA SERGIPANA DE TECNOLOGIA DA INFORMAÇÃO, indicating a state-owned telecommunications entity in Sergipe, Brazil.
  • The AS announces 3584 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, a ratio consistent with an access or regional network rather than a transit provider.

Notable

  • All three announced IPv4 prefixes share the same netname and registrant, confirming a unified ownership structure for the announced space.
  • The inventory consists of blocks within the 187.17.0.0/16 range, specifically 187.17.0.0/22, 187.17.4.0/23, and 187.17.8.0/21, alongside a single /48 IPv6 block.

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) AracajuAracaju, Brazil200.219.130.13

Transit providers

2 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS263165MARVITEL TELECOM370
AS61568ALOO TELECOM - FSF TECNOLOGIA SA79

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 3 prefixes · 3.58K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil4

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
28261
Registry name
ASN28261
Registrant
EMPRESA SERGIPANA DE TECNOLOGIA DA INFORMAÇÃO
Abuse contact
antoniomanoel.oliveira@emgetis.se.gov.br
Registered
2008-10-22
Last changed
2018-08-01
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 8 with no ROA
ROAs
0 authorising AS28261
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
11 naming AS28261

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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