Autonomous System
AS28370 — AS28370 - GUIFAMI Informatica Ltda.(BR)
Last fetched
AS28370 is an Autonomous System operated by AS28370 - GUIFAMI Informatica Ltda. and registered in BR. As of Sun, 06 Sep 2026 16:08:38 GMT, it announces 28 routed IP prefixes and peers with 23 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS28370 announces 28 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 45.172.144.0/24
- 45.172.144.0/23
- 45.172.145.0/24
- 45.172.144.0/22
- 45.172.146.0/24
- 45.172.146.0/23
- 187.45.144.0/20
- 187.45.152.0/24
- 187.45.152.0/23
- 187.45.153.0/24
- 187.45.152.0/22
- 187.45.154.0/23
- 187.45.152.0/21
- 187.45.156.0/23
- 187.45.156.0/22
- 187.45.158.0/23
- 187.45.159.0/24
- 189.84.144.0/22
- 189.84.144.0/21
- 189.84.144.0/20
- 189.84.152.0/22
- 189.84.152.0/21
- 189.84.156.0/23
- 189.84.157.0/24
- 189.84.156.0/22
Peering ecosystem
23 distinct peers via BGP. The first 23 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS1031 | PEER1-1031 - PEER 1031 LLC | US |
| AS22356 | AS22356 - Durand do Brasil Ltda | BR |
| AS22381 | AS22381 - SAMM TECNOLOGIA E TELECOMUNICACOES S.A | BR |
| AS263060 | AS263060 - Atilio Marcos Marcari e Cia Ltda Me | BR |
| AS263535 | AS263535 - REDE GLOBAL TECNOLOGIA LTDA ME | BR |
| AS263963 | AS263963 - Goldweb Barretos servicos de Telecomunicacoes Ltda | BR |
| AS264426 | AS264426 - VM Provedora de Internet Ltda Me | BR |
| AS267556 | AS267556 - Explorer Telecom Ltda - ME | BR |
| AS267608 | AS267608 - Micheleto Internet Eireli | BR |
| AS268198 | AS268198 - StacaoNET Telecomunicacoes | BR |
| AS268521 | AS268521 - PONTO.COM TELECOM | BR |
| AS268624 | AS268624 - Gamers Club Ltda | BR |
| AS269016 | AS269016 - F T L Net Provedor de Internet Ltda- ME | BR |
| AS269168 | AS269168 - NEWSIGNAL INTERNET E TECNOLOGIA | BR |
| AS270962 | AS270962 - NETICO TELECOMUNICACAO LTDA | BR |
| AS271253 | AS271253 - LINK BRASIL TELECOMUNICACOES LTDA | BR |
| AS272253 | AS272253 - FLASH PROVEDOR DE INTERNET LTDA | BR |
| AS273514 | AS273514 - AMPLE SOLUCOES TECNOLOGICAS LTDA | BR |
| AS28657 | AS28657 - MD Brasil - Tecnologia da Informacao Ltda | BR |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | US |
| AS53079 | AS53079 - MD Brasil - Tecnologia da Informacao Ltda | BR |
| AS61708 | AS61708 - INFOCAT INFORMATICA LTDA | BR |
| AS6939 | HURRICANE - Hurricane Electric LLC | US |
Blast radius
Count of dependent hostnames if AS28370 disappeared from the routing table.
253 hostnames depend on this network.Exact count across all 28 announced prefixes. Snapshot Sat, 25 Jul 2026 12:00:39 GMT.
MOAS / hijack watch
Prefixes routed by AS28370 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.
No active MOAS conflicts. Every prefix announced by AS28370 is unique to AS28370 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS28370.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS28370"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.