$ query “AS28580” --type=asn → 1 result(s)

AS28580 · CILNET-COMUNICACAO-INFORMATICA

Cilnet Comunicação e Informática S.A.

AS28580 is owned by Cilnet Comunicação e Informática S.A. and is a residential access provider, based in Brazil since 2005. The system announces a respectable 77 824 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in Australia, with additional presence in Brazil and Mexico, and a smaller footprint in another country.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇧🇷 Brazil
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
January 17, 2005
Last Changed
March 04, 2026
Last Seen
September 22, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
195 / 25
IPv6 Prefixes (raw / aggregated)
15 / 9
IPv4 Addresses
77 824
Largest IPv4 Prefix
/18 (16 384 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇦🇺 Australia (62 336 IPs), 🇧🇷 Brazil (38 224 IPs), 🇲🇽 Mexico (16 192 IPs) and 1 more
Prefix Changed
August 28, 2026

Reputation

Reputation
Good — 2 flagged IPs out of 77 824 total (0.00%)

Connectivity Summary

Upstream Providers
3 upstreams providing transit
Peers
32 networks exchanging traffic without transit
Downstream Customers
7 downstreams buying transit
Degree
42 unique BGP neighbors
Reach
8 networks in customer cone

Upstream Providers (3)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS37468 — ANGOLA-CABLES
  • AS28649 — DESKTOP-SIGMANET-COMUNICACAO

Prefix Lists

IPv4 Prefixes (195 total)

  • 186.224.128.0/18 (16 384 addresses (/18 prefix))
  • 201.46.32.0/19 (8 192 addresses (/19 prefix))
  • 189.28.224.0/19 (8 192 addresses (/19 prefix))
  • 187.45.0.0/19 (8 192 addresses (/19 prefix))
  • 177.101.48.0/20 (4 096 addresses (/20 prefix))
  • 200.187.80.0/20 (4 096 addresses (/20 prefix))
  • 191.253.240.0/20 (4 096 addresses (/20 prefix))
  • 189.51.208.0/20 (4 096 addresses (/20 prefix))
  • 187.84.0.0/20 (4 096 addresses (/20 prefix))
  • 138.122.68.0/22 (1 024 addresses (/22 prefix))
  • 143.0.232.0/22 (1 024 addresses (/22 prefix))
  • 168.194.228.0/22 (1 024 addresses (/22 prefix))
  • 170.245.20.0/22 (1 024 addresses (/22 prefix))
  • 170.247.116.0/22 (1 024 addresses (/22 prefix))
  • 177.85.40.0/22 (1 024 addresses (/22 prefix))
  • 168.90.184.0/22 (1 024 addresses (/22 prefix))
  • 168.194.4.0/22 (1 024 addresses (/22 prefix))
  • 138.186.180.0/22 (1 024 addresses (/22 prefix))
  • 45.7.204.0/22 (1 024 addresses (/22 prefix))
  • 138.0.180.0/22 (1 024 addresses (/22 prefix))
  • 45.237.16.0/22 (1 024 addresses (/22 prefix))
  • 45.224.76.0/22 (1 024 addresses (/22 prefix))
  • 45.170.140.0/22 (1 024 addresses (/22 prefix))
  • 45.166.124.0/22 (1 024 addresses (/22 prefix))
  • 201.150.100.0/22 (1 024 addresses (/22 prefix))

IPv6 Prefixes (15 total)

  • 2804:90::/32
  • 2804:5f4:c002::/47
  • 2804:5f4:c012::/47
  • 2804:5f4:c022::/47
  • 2804:5f4:c032::/47
  • 2804:5f4:c001::/48
  • 2804:5f4:c011::/48
  • 2804:5f4:c021::/48
  • 2804:5f4:c031::/48