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Autonomous System

AS43800

NTS workspace AG

Announced IPs
1,280
CIDR prefixes
3
ASN
AS43800

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
185.54.4.0/23 512
7.6%
NTS workspace AG CH
193.34.136.0/23 512
18.2%
NTS workspace AG CH
185.54.6.0/24 256
4.3%
NTS workspace AG CH

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS43800 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
185.54.6.0/24 4,881 2026-07-24 12:31:03
193.34.136.0/23 4,834 2026-07-24 12:31:13
185.54.4.0/23 4,676 2026-07-24 12:31:03

Frequently Asked Questions

What is AS43800?

AS43800 is an Autonomous System Number assigned to NTS workspace AG. 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 AS43800 announce?

AS43800 announces 1.3K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Switzerland.

Who operates AS43800?

AS43800 is operated by NTS workspace AG. The organization is based in Switzerland. You can view all IP ranges and related ASNs on the organization page.

What country is AS43800 registered in?

AS43800 is registered in Switzerland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 12:55:31 UTC
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