AS28158 — AS28158 - Ampernet Telecomunicacoes Ltda

AS28158 announces 14 IPv4 prefixes covering 25,600 addresses and 3 IPv6 prefixes.

About this network

AS28158 is operated by Ampernet Telecomunicacoes Ltda, a regional internet service provider in Brazil.

What it's used for

• The address space carries dynamic residential connections, evidenced by reverse DNS entries such as 0.100.109.187.dynamic.ampernet.com.br and 255.103.109.187.dynamic.ampernet.com.br.
• The AS announces 24,576 IPv4 addresses across 24 prefixes and 2 IPv6 prefixes, while maintaining 68 observed neighbours. This ratio of moderate address space against a high number of peering partners indicates an access network providing last-mile connectivity rather than a transit provider.

Notable

• All RDAP registrants for the largest prefixes are listed as Ampernet Telecomunicações Ltda, which aligns perfectly with the AS holder name.
• The inventory consists of a mix of /20, /21, /22, /23, and /24 blocks, including ranges in the 187.109.0.0/16, 177.23.0.0/16, and 45.0.0.0/8 spaces, reflecting a typical regional ISP footprint.

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

Announced prefixes

• 45.162.40.0/22
• 45.189.144.0/22
• 45.234.0.0/22
• 45.238.68.0/22
• 138.97.8.0/22
• 170.83.104.0/22
• 170.84.160.0/22
• 170.246.192.0/22
• 177.23.192.0/21
• 177.101.128.0/20
• 177.129.120.0/22
• 187.60.208.0/20
• 187.109.96.0/20
• 187.120.232.0/21
• 2804:3a4::/32
• 2804:6fc::/32
• 2804:4be4::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS263444 Open X Tecnologia Ltda
• AS174 Cogent Communications, LLC
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS35280 F5 Networks SARL
• AS6453 TATA COMMUNICATIONS (AMERICA) INC

Downstream networks

• AS61717 NetTri Telecom
• AS52570 TechInfo Telecomunicacoes Ltda
• AS269794 GRUPO SPEED NET SOCIEDAD ANONIMA
• AS61819 K L M SERVICOS DE TELECOMUNICACOES LTDA
• AS264428 GTEC NET
• AS265759 VIVE TELECOM S.A.
• AS268736 Patricki A Felipe
• AS270491 Maria Gomes de Souza Assis - Me
• AS52724 Adriano Telecomunicacoes Ltda Me
• AS266694 FULL TELECOMUNICACIONES S.A
• AS262657 DENTEL Telecom
• AS265189 Inova Fibra
• AS266105 RPNET INFORMATICA LTDA - ME
• AS270517 tryideas ltda
• AS264321 NEW OESTE TELECOMUNICACOES LTDA
• AS262911 BAU E DORL LTDA
• AS269783 WIND NET S.A.
• AS264413 Conecta Telecom Ltda
• AS268411 ASM EQUIPAMENTOS DE INFORMATICA LTDA
• AS269141 B3 TELECOMUNICACOES LTDA
• AS52591 S. C. Terres e Cia Ltda
• AS270469 J R S PINHEIRO INFORMATICA
• AS263322 KRIESANG LTDA ME
• AS264334 MarapelNet Telecom
• AS262280 PARATI INDUSTRIA E COMERCIO DE ALIMENTOS LTDA

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS269783 WIND NET S.A.
• AS61717 NetTri Telecom
• AS262657 DENTEL Telecom
• AS52570 TechInfo Telecomunicacoes Ltda
• AS6939 Hurricane Electric LLC
• AS269794 GRUPO SPEED NET SOCIEDAD ANONIMA
• AS61819 K L M SERVICOS DE TELECOMUNICACOES LTDA
• AS52724 Adriano Telecomunicacoes Ltda Me
• AS174 Cogent Communications, LLC
• AS264428 GTEC NET
• AS266694 FULL TELECOMUNICACIONES S.A
• AS263444 Open X Tecnologia Ltda
• AS265759 VIVE TELECOM S.A.
• AS266105 RPNET INFORMATICA LTDA - ME
• AS265078 JHS TELECOMUNICACOES LTDA
• AS268736 Patricki A Felipe
• AS270491 Maria Gomes de Souza Assis - Me
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS264285 DataLinux Informatica Ltda
• AS265189 Inova Fibra
• AS24482 SG.GS
• AS270517 tryideas ltda
• AS37721 Virtual Technologies & Solutions
• AS264321 NEW OESTE TELECOMUNICACOES LTDA

Routing security

• RPKI: 76 valid, 0 invalid and 0 not-found announcements; 21 ROAs.
• ASPA: none published.
• IRR: 32% of announcements registered; 37 route objects.
• Listed in as-sets: AS-1000-LINKAMERICAN, AS-267613, AS-28124, AS-53062-CUSTOMERS, AS-53062-CUSTOMERS, AS-AMPERNET, AS-CTBC-CUSTOMERS1, AS-CTBC-CUSTOMERS82, AS-CTBC-TOOLS-4, AS-DURAND1-CUSTOMER, AS-EMBRATELNET, AS-FLYS, AS-FORTE-TELECOM-CUSTOMER-RJ, AS-HURRICANEV6, AS-OPENX-CUSTOMERS, AS-OPENX-MTGC, AS-ROCKETNETWORK-TOOLS-2, AS-UFINET-LATAM-BRASIL, AS264409:AS-CONE, AS266694:AS-TRANSIT, AS28146:AS-CLIENTS, AS3491:AS-CUSTOMERS-NA, AS53013:AS-CONE.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• IX.br (PTT.br) Curitiba — Curitiba, Brazil
• IX.br (PTT.br) Maringá — Maringá, Brazil
• IX.br (PTT.br) Cascavel — Cascavel, Brazil
• IX.br (PTT.br) Foz do Iguaçu — Foz do Iguaçu, Brazil