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Autonomous System

AS53641

Tomales Bay LAN, LLC

Announced IPs
1,280
CIDR prefixes
2
ASN
AS53641

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.

65/100
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

CIDRIPsPTR DensityOrganizationCountryStateCity
198.40.44.0/22 1.0K
0.0%
Tomales Bay LAN, LLC US California Bolinas
209.112.111.0/24 256
82.4%
Tomales Bay LAN, LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS53641 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
198.40.45.0/24 52,225 2026-08-04 06:38:21
198.40.44.0/24 52,179 2026-08-04 06:38:21
198.40.46.0/23 39,982 2026-08-04 06:09:59
198.40.44.0/22 39,549 2026-08-04 06:09:59
209.112.111.0/24 35,463 2026-08-04 06:09:59
198.40.46.0/24 35,450 2026-08-04 06:09:59
198.40.47.0/24 35,384 2026-08-04 06:09:59
198.40.44.0/23 31,130 2026-08-01 14:08:50

Frequently Asked Questions

What is AS53641?

AS53641 is an Autonomous System Number assigned to Tomales Bay LAN, LLC. 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 AS53641 announce?

AS53641 announces 1.3K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United States.

Who operates AS53641?

AS53641 is operated by Tomales Bay LAN, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS53641 registered in?

AS53641 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: 2026-08-04 07:10:31 UTC
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