Autonomous system
AS47517 CSSUZ-AS CENTRAL COMMUNICATION STATION BRANCH OF UKRAINIAN RAILWAY JSC
Unclassified RIPE
Summary
Ukrainian Railways
railway corporate government infrastructure
CSSUZ-AS is operated by JSC "Ukrainian Railways", the national railway carrier of Ukraine.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by the netname
CSSUZ-NETand reverse DNS entrymail.csz.uz.gov.uapointing to a mail server for the Central Communication Station. - The AS announces 768 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
- Traffic consists of internal corporate communications, including email and administrative systems for the railway's central communication facilities.
Notable
- Both announced prefixes are registered to JSC "Ukrainian Railways" with the netname
CSSUZ-NET, confirming the registrant matches the AS holder. - The address inventory is small and finely subdivided into two distinct blocks, consistent with an internal corporate estate segmented by function or site.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| UA | Ukraine | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS47517- Registry name
- CSSUZ-AS
- Registrant
- CSSUZ-MNT
- Abuse contact
- admin@csz.uz.gov.ua
- Registered
- 2008-07-01
- Last changed
- 2026-03-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS47517
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS47517
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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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