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AS396055FiberX

Puerto RicoRegistryARIN

As of 23rd October 2026, AS396055 (FiberX), a network registered in Puerto Rico with ARIN, originates 1 IPv4 prefix covering 1k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 35,839th-largest of the 79,652 networks we see originating IPv4, and the 41st-largest of 97 in Puerto Rico. It is seen behind 1 upstream network, most often AS6208 (FiberX). 67% of its announcements have 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

1

IPv6 prefixes

2

IPv4 addresses

1k

IPv6 /64s

269M

Upstream graph

The networks AS396055 is seen behind, one and two hops out, drawn from real AS paths.

AS396055Toward the internet core
Upstream graph for AS396055: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS396055FiberXThis networkAS6208FiberXAS3257GTT Communication…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS396055 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 AS396055
NetworkCountryRelationshipPathsVantage pts
AS6208FiberXPRPeer205141

Prefixes

The largest blocks AS396055 originates, widest first.

Largest prefixes originated by AS396055
PrefixAddressesVisibility
38.158.208.0/221k77/77
2604:fcc0:8000::/36268M × /6464/64
2604:fcc0:8fa0::/441M × /6464/64

Routing health

How AS396055'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

  • Valid66.7%2
  • Invalid0.0%0
  • No ROA33.3%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 2 prefixes

  • /36268M × /6450.0%1
  • /441M × /6450.0%1

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS396055 started or stopped in this period.

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