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Autonomous System

AS399291

Puerto Rico Fiber Network Inc

Announced IPs
3,072
CIDR prefixes
5
ASN
AS399291

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS399291 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
200.5.31.0/24 7,177 2026-07-24 06:49:21
104.238.192.0/24 7,084 2026-07-24 06:49:14
23.134.164.0/24 7,024 2026-07-24 06:49:14
38.226.32.0/21 7,020 2026-07-24 06:49:16
154.64.217.0/24 6,963 2026-07-24 06:49:21

Frequently Asked Questions

What is AS399291?

AS399291 is an Autonomous System Number assigned to Puerto Rico Fiber Network Inc. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS399291 announce?

AS399291 announces 3.1K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Puerto Rico.

Who operates AS399291?

AS399291 is operated by Puerto Rico Fiber Network Inc. The organization is based in Puerto Rico. You can view all IP ranges and related ASNs on the organization page.

What country is AS399291 registered in?

AS399291 is registered in Puerto Rico. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 07:10:34 UTC
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