AS28577 — AS28577 - AZEVEDO E FLORIANI TELECOMUNICACOES LTDA.

AS28577 announces 2 IPv4 prefixes covering 3,072 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 138.99.52.0/22
• 186.208.216.0/21
• 2804:d74::/32

Upstream networks

• AS267469 W8 Telecom Ltda - ME
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS

Adjacent networks

• AS267469 W8 Telecom Ltda - ME
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions

Routing security

• RPKI: 0 valid, 0 invalid and 29 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 38% of announcements registered; 13 route objects.
• Listed in as-sets: AS-267613, AS-28577, AS-7738-BGP-CUSTOMERS, AS-7738_CUSTOMERS, AS-8167-BGP-CUSTOMERS, AS-8167_CUSTOMERS, AS-AS393742, AS-CTBC-CUSTOMERS26, AS-CTBC-TOOLS-4, AS-E1-AUTOMATION-CUSTOMER, AS-FORTE-TELECOM-CUSTOMER-RJ, AS-HURRICANE, AS-HURRICANEV6, AS-HWNG-DOWNSTREAMS, AS-RETN-ACTUAL-V4, AS-SB-AUTOMATION-CUSTOMER, AS-UFINET-LATAM-BRASIL, AS267469:AS-CUSTOMERS, AS28146:AS-CLIENTS, AS3491:AS-CUSTOMERS-NA, AS53013:AS-CONE.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil