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AS42580NOS ACORES COMUNICACOES, S.A.

PortugalRegistryRIPE NCCTypeEyeball

As of 14th November 2026, AS42580 (NOS ACORES COMUNICACOES, S.A.), an access network registered in Portugal with RIPE NCC, originates 3 IPv4 prefixes covering 28.7k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 5,906th-largest of the 80,840 networks we see originating IPv4, and the 16th-largest of 129 in Portugal. It is seen behind 1 upstream network, most often AS2860 (NOS COMUNICACOES, S.A.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

28.7k

IPv6 /64s

34.4B

Upstream graph

The networks AS42580 is seen behind, one and two hops out, drawn from real AS paths.

AS42580Toward the internet core
Upstream graph for AS42580: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS42580NOS ACORES COMUNI…This networkAS2860NOS COMUNICACOES,…AS3356Lumen (Level 3)AS6453TATA Communicatio…

Networks observed one and two hops upstream of AS42580 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS42580
NetworkCountryRelationshipPathsVantage pts
AS2860NOS COMUNICACOES, S.A.PTPeer296140

Prefixes

The largest blocks AS42580 originates, widest first.

Largest prefixes originated by AS42580
PrefixAddressesVisibility
78.29.128.0/1816.4k78/78
128.65.224.0/198.2k78/78
81.20.240.0/204.1k78/78
2a0b:c1c0::/2934.4B × /6462/64

Routing health

How AS42580'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%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 15th Oct 2026.

No announcement by AS42580 started or stopped in this period.

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