AS28267 — AS28267 - SIM INTERNET PROVEDORES DE INTERNET EIRELI.

AS28267 announces 9 IPv4 prefixes covering 11,264 addresses and 1 IPv6 prefixes.

About this network

AS28267 is operated by SIM Internet Provedores de Internet Eireli.

What it's used for

• The address space carries residential broadband access, evidenced by reverse DNS entries pointing to as28267.sc.simfibra.com.br, indicating fiber-based customer premises equipment.
• The AS announces 11,264 IPv4 addresses across 9 prefixes and maintains 4 observed neighbours, a ratio characteristic of an access or eyeball network rather than a transit provider.

Notable

• Registrants for the majority of prefixes align with the announcer, specifically SIM INTERNET PROVEDORES DE INTERNET EIRELI., though one /24 block is registered to Cogent Communications, LLC and another to fusao redes provedor de internet ltda.
• The inventory consists of a mix of mid-sized blocks, including a /20 and multiple /22s, with a single IPv6 /40 prefix announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 38.211.117.0/24
• 45.175.0.0/22
• 45.182.120.0/22
• 187.17.224.0/20
• 187.108.0.0/21
• 187.108.8.0/22
• 187.108.12.0/24
• 187.108.14.0/23
• 190.102.48.0/22
• 2804:20d4:ff00::/40

Upstream networks

• AS263998 Machado & Mascarelo Sonorizacao Ltda
• AS268042 JETNET COMUNICACAO LTDA
• AS262778 IDSUL SERVICOS DE INTERNET LTDA
• AS263492 VIPMAX INTERNET LTDA

Adjacent networks

• AS263998 Machado & Mascarelo Sonorizacao Ltda
• AS268042 JETNET COMUNICACAO LTDA
• AS262778 IDSUL SERVICOS DE INTERNET LTDA
• AS263492 VIPMAX INTERNET LTDA

Routing security

• RPKI: 44 valid, 0 invalid and 1 not-found announcements; 7 ROAs.
• ASPA: none published.
• IRR: 96% of announcements registered; 148 route objects.
• Listed in as-sets: AS-262778-CUSTOMERS, AS-264144, AS-267613, AS-53062-CUSTOMERS, AS-53062-CUSTOMERS, AS-8167-BGP-CUSTOMERS, AS-8167_CUSTOMERS, AS-CTBC-CUSTOMERS112, AS-CTBC-CUSTOMERS7, AS-CTBC-TOOLS-1, AS-DURAND1-CUSTOMER, AS-E1-AUTOMATION-CUSTOMER, AS-EMBRATELNET, AS-FORTE-TELECOM-CUSTOMER-POC, AS-ITXBR, AS-ITXBR1, AS-MMTELECOM, AS-MOB-CUSTOMER-AS265303, AS-MOB-CUSTOMER-AS265892, AS-ROCKETNETWORK-TOOLS-2, AS-SB-AUTOMATION-CUSTOMER, AS-TELY, AS-UFINET-LATAM-BRASIL, AS-UPIX-CUSTOMERS, AS204464:AS-BLACKLIST.