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Autonomous System

AS63351

Southern Caribbean Fiber

Announced IPs
2,560
CIDR prefixes
5
ASN
AS63351

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 AS63351 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
38.86.163.0/24 51,586 2026-07-24 07:21:38
199.91.162.0/24 51,467 2026-07-24 07:21:41
207.90.255.0/24 50,934 2026-07-24 07:21:41
38.86.161.0/24 9,507 2026-07-24 07:21:38
38.86.162.0/23 9,494 2026-07-24 07:21:38
207.90.254.0/24 4,754 2026-07-24 07:21:58
38.87.192.0/22 4,622 2026-07-24 07:21:58
207.90.254.0/23 4,414 2026-07-24 07:21:58

Frequently Asked Questions

What is AS63351?

AS63351 is an Autonomous System Number assigned to Southern Caribbean Fiber. 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 AS63351 announce?

AS63351 announces 2.6K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in United States.

Who operates AS63351?

AS63351 is operated by Southern Caribbean Fiber. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS63351 registered in?

AS63351 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 08:10:33 UTC
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