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AS211680NSEC - Sistemas Informaticos, S.A.

PortugalRegistryRIPE NCC

As of 12th November 2026, AS211680 (NSEC - Sistemas Informaticos, S.A.), a network registered in Portugal with RIPE NCC, originates 5 IPv4 prefixes covering 1.3k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 34,054th-largest of the 80,805 networks we see originating IPv4, and the 45th-largest of 129 in Portugal. It is seen behind 1 upstream network, most often AS32475 (Internap Holding LLC). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 88% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

3

IPv4 addresses

1.3k

IPv6 /64s

197k

Upstream graph

The networks AS211680 is seen behind, one and two hops out, drawn from real AS paths.

AS211680Toward the internet core
Upstream graph for AS211680: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS211680NSEC - Sistemas I…This networkAS32475Internap Holding …AS6461Zayo BandwidthAS23352DEFT.COM

Networks observed one and two hops upstream of AS211680 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 AS211680
NetworkCountryRelationshipPathsVantage pts
AS32475Internap Holding LLCUSPeer496141

Prefixes

The largest blocks AS211680 originates, widest first.

Largest prefixes originated by AS211680
PrefixAddressesVisibility
45.156.128.0/2425677/78
45.156.129.0/2425678/78
45.156.130.0/242561/78
185.180.143.0/2425678/78
185.226.198.0/2425677/78
2a10:3c0:2::/4865.5k × /6461/64
2a10:3c0:100::/4865.5k × /6463/64
2a10:3c0:101::/4865.5k × /6461/64

Routing health

How AS211680'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%8
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more87.5%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%12.5%1

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 3 prefixes

  • /4865.5k × /64100.0%3

Recent changes

Announcements that started or stopped since 13th Oct 2026.

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