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AS18895Nustream Communications

Puerto RicoRegistryARIN

As of 10th November 2026, AS18895 (Nustream Communications), a network registered in Puerto Rico with ARIN, originates 49 IPv4 prefixes covering 30.7k addresses. By IPv4 address space that makes it the 5,709th-largest of the 80,723 networks we see originating IPv4, and the 8th-largest of 97 in Puerto Rico. It is seen behind 3 upstream networks, most often AS395471 (Data@ccess Communication, Inc.) and AS14537 (Continent 8 LLC), and in front of 2 downstream networks. None of its announcements have a valid RPKI ROA. 59% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

49

IPv6 prefixes

0

IPv4 addresses

30.7k

IPv6 /64s

0

Upstream graph

The networks AS18895 is seen behind, one and two hops out, drawn from real AS paths.

AS18895Toward the internet core
Upstream graph for AS18895: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18895Nustream Communic…This networkAS14537Continent 8 LLCAS21559OSNETAS395471Data@ccess Commun…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS3257GTT Communication…AS6939Hurricane Electri…AS23520Columbus Networks…

Networks observed one and two hops upstream of AS18895 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

10

adjacent networks

Upstreams
330%
Peers
550%
Downstreams
220%

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

Upstreams of AS18895
NetworkCountryRelationshipPathsVantage pts
AS395471Data@ccess Communication, Inc.PRPeer2,21976
AS14537Continent 8 LLCUSPeer402
AS21559OSNETPRPeer201

Prefixes

All 49

The largest blocks AS18895 originates, widest first.

Largest prefixes originated by AS18895
PrefixAddressesVisibility
70.35.128.0/204.1k76/76
207.150.240.0/204.1k76/76
67.215.96.0/212k75/76
70.35.128.0/212k76/76
70.35.136.0/212k76/76
207.150.240.0/212k3/76
207.150.248.0/212k3/76
67.215.104.0/221k75/76
162.244.168.0/221k75/76
67.215.97.0/242563/76

Routing health

How AS18895'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%49

Propagation

  • Globally propagated90% of full-feed peers or more59.2%29
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%40.8%20

Prefix sizes

IPv4 — 49 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS18895 started or stopped in this period.

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