subnet.im

AS61657GOIAS NET TELECOM LTDA

BrazilRegistryLACNIC

As of 10th November 2026, AS61657 (GOIAS NET TELECOM LTDA), a network registered in Brazil with LACNIC, originates 7 IPv4 prefixes covering 3.1k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 20,470th-largest of the 80,733 networks we see originating IPv4, and the 1,831st-largest of 8,031 in Brazil. It is seen behind 9 upstream networks, most often AS52573 (Une Telecom Ltda) and AS266167 (CELERIX TECNOLOGIA DE TELECOMUNICACOES…), and in front of 2 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 36% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

7

IPv6 prefixes

7

IPv4 addresses

3.1k

IPv6 /64s

12.9B

Upstream graph

The networks AS61657 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS61657 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

63

adjacent networks

Upstreams
914%
Peers
5283%
Downstreams
23%

Networks carrying this one's traffic toward the rest of the internet.

Prefixes

The largest blocks AS61657 originates, widest first.

Largest prefixes originated by AS61657
PrefixAddressesVisibility
131.100.252.0/221k76/76
131.100.252.0/2351276/76
131.100.254.0/2351276/76
131.100.252.0/242561/76
131.100.253.0/2425622/76
131.100.254.0/2425622/76
131.100.255.0/2425676/76
2804:1c80::/324.3B × /6460/63
2804:1c80::/332.1B × /6427/63
2804:1c80:8000::/332.1B × /6427/63

Routing health

How AS61657's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%14
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more35.7%5
  • Partially propagated40% to 90%42.9%6
  • Seen by few peersUnder 40%21.4%3

Prefix sizes

IPv6 — 7 prefixes

  • /324.3B × /6414.3%1
  • /332.1B × /6428.6%2
  • /341.1B × /6457.1%4

Recent changes

Announcements that started or stopped since 11th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.