asn.dev

Autonomous system

AS28577 AZEVEDO E FLORIANI TELECOMUNICACOES LTDA.

Unclassified LACNIC

IPv4 addresses 3.07K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 1 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Yukanet

Brazil · AI-generated

isp residential brazil telecom

AS28577 is operated by Azevedo e Floriani Telecomunicações Ltda., known commercially as Yukanet.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries pointing to yukanet.com.br (e.g., 0.218.208.186.yukanet.com.br).
  • The AS announces 3072 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 26 observed neighbours; this ratio of moderate address space against a significant number of peering partners suggests a regional access provider with transit relationships.

Notable

  • Registrants for both announced IPv4 prefixes (186.208.216.0/21 and 138.99.52.0/22) match the AS holder, Azevedo e Floriani Telecomunicações Ltda.
  • The operator is identified in peering databases as Yukanet, confirming the commercial brand associated with the legal entity.
  • The inventory consists of two distinct IPv4 blocks and a single /32 IPv6 prefix, indicating a focused regional footprint rather than a large national or international carrier.

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, Brazil187.16.212.203

Transit providers

4 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS267469W8 Telecom Ltda - ME734
AS24482SG.GS16
AS37721Virtual Technologies & Solutions16
AS7713PT Telekomunikasi Indonesia12

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 3.07K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil3

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
28577
Registry name
ASN28577
Registrant
AZEVEDO E FLORIANI TELECOMUNICAÇÕES LTDA.
Abuse contact
CARLOS DUARTE FLOARIANI
Registered
2013-05-07
Last changed
2013-05-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 29 with no ROA
ROAs
0 authorising AS28577
ASPA
no ASPA record
IRR
100% registered · 29 of 29 announcements
Route objects
13 naming AS28577

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 1,775 prefixes, as published 2026-10-11. 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