Autonomous system
AS25093 CSAS-CZ Ceska sporitelna a.s.
Unclassified RIPE Enterprise
Summary
Ceska sporitelna a.s.
business enterprise banking czech
The AS handle CSAS- is held by Ceska sporitelna a.s., a major Czech banking institution.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by reverse DNS entries such as
ddnsa.csas.czandwebex.csas.cz. - The AS announces 512 IPv4 addresses across 2 prefixes with only 1 observed neighbour, indicating a small, isolated internal network rather than a transit or access provider.
Notable
- Both registrants for the announced prefixes are listed as Ceska sporitelna a.s., matching the AS holder.
- The inventory consists of two /24 blocks (194.50.205.0/24 and 194.50.240.0/24) with no IPv6 prefixes, reflecting a compact IPv4-only corporate estate.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS6855 | Slovak Telekom, a.s. | 122 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS25093- Registry name
- CSAS-CZ
- Registrant
- CeskaSporitel-mnt
- Abuse contact
- nic@t-mobile.cz
- Registered
- 2002-07-23
- Last changed
- 2018-08-22
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Ceska Sporitelna a.s.
- Network type
- Enterprise
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Restrictive
- Website
- http://www.csas.cz/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS25093
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS25093
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,843 prefixes, as published 2026-11-01. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere