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Organization

CESNET z.s.p.o.

IPv4 addresses
849,920
CIDR ranges
21
Category
enterprise
BGP prefixes announced
41

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.

69/100
Moderate
How this score is built

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

CESNET z.s.p.o. — global IP footprint

Cities where CESNET z.s.p.o. has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

Countries served by CESNET z.s.p.o.

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by CESNET z.s.p.o.

ASNNameIPsPrefixesCountry
AS2852 CESNET z.s.p.o. 849.9K 21 CZ

Largest CIDR ranges

Frequently Asked Questions

How many IP addresses does CESNET z.s.p.o. own?

CESNET z.s.p.o. controls 849.9K IPv4 addresses distributed across 21 CIDR ranges. The organization is registered in Czechia.

What ASNs does CESNET z.s.p.o. operate?

CESNET z.s.p.o. operates 1 Autonomous System. Each ASN represents an independently routed network that CESNET z.s.p.o. manages for internet traffic delivery.

What type of organization is CESNET z.s.p.o.?

CESNET z.s.p.o. is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-27 15:55:30 UTC
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