subnet.im

AS1930Fundacao para a Ciencia e a Tecnologia, I.P.

PortugalRegistryRIPE NCCTypeCarrier

As of 22nd October 2026, AS1930 (Fundacao para a Ciencia e a Tecnologia…), a transit carrier registered in Portugal with RIPE NCC, originates 78 IPv4 prefixes covering 360k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 857th-largest of the 79,663 networks we see originating IPv4, and the 4th-largest of 128 in Portugal. It is seen behind 6 upstream networks, most often AS21320 (GEANT Vereniging) and AS6939 (Hurricane Electric LLC), and in front of 7 downstream networks. 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

78

IPv6 prefixes

1

IPv4 addresses

360k

IPv6 /64s

4.3B

Upstream graph

The networks AS1930 is seen behind, one and two hops out, drawn from real AS paths.

AS1930Toward the internet core
Upstream graph for AS1930: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1930Fundacao para a C…This networkAS6939Hurricane Electri…AS20965GEANT VerenigingAS21320GEANT VerenigingAS22356Durand do Brasil …AS35280F5 Networks SARLAS20130Depaul UniversityAS132337AxclusiveAS293ESnetAS11537Internet2AS2603NORDUnetAS3356Lumen (Level 3)AS3491PCCW Global (HK) …

Networks observed one and two hops upstream of AS1930 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

34

adjacent networks

Upstreams
618%
Peers
2162%
Downstreams
721%

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

Upstreams of AS1930
NetworkCountryRelationshipPathsVantage pts
AS21320GEANT VerenigingNLPeer6,822117
AS6939Hurricane Electric LLCUSPeer35817
AS20965GEANT VerenigingNLPeer1982
AS35280F5 Networks SARLFRPeer992
AS22356Durand do Brasil LtdaBRPeer992
AS174Cogent Communications, LLCUSPeer63

Prefixes

All 79

The largest blocks AS1930 originates, widest first.

Largest prefixes originated by AS1930
PrefixAddressesVisibility
193.136.0.0/15131k76/77
139.83.0.0/1665.5k76/77
194.210.0.0/1665.5k76/77
158.162.128.0/1816.4k76/77
193.236.192.0/1816.4k76/77
158.162.0.0/198.2k76/77
158.162.64.0/198.2k76/77
158.162.96.0/204.1k76/77
193.236.0.0/204.1k76/77
193.236.160.0/204.1k76/77

Routing health

How AS1930'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%79
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%79
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 78 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS1930 started or stopped in this period.

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