Autonomous system
AS25084 CZESTMAN-COM-AS Non-academic AS dedicated to Metropolitan Area Network
Unclassified RIPE Educational/Research
Summary
Politechnika Czestochowska
education research academic
The AS handle CZESTMAN-COM-AS is held by Politechnika Czestochowska.
What it's used for
- The address space carries the network infrastructure for the Czestochowa University of Technology, as indicated by the registrant "CzestMAN Operations; Politechnika Czestochowska" and the netname
PL-CZESTMAN-20000519. - The AS announces 1536 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 20 observed neighbours. This ratio of address space to peering partners suggests a network with significant internal connectivity or transit requirements for its academic and research activities.
Notable
- The registrants for both announced IPv4 prefixes are consistent with the AS holder, listing "CzestMAN Operations; Politechnika Czestochowska".
- The address inventory consists of two IPv4 blocks (212.87.244.0/22 and 212.87.240.0/23) and a single IPv6 /32 prefix (2a01:699::/32), reflecting a standard allocation for an institutional network.
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
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| TPIX - Internet Exchange | Warsaw, Poland | 195.149.233.134 |
| Thinx IX | Warsaw, Poland | 212.91.0.237 |
Transit providers
7 upstream, 8 downstream and 20 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS13293 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 59 |
| AS196844 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 53 |
| AS6939 | Hurricane Electric LLC | 29 |
| AS5617 | Orange Polska Spolka Akcyjna | 6 |
| AS24482 | SG.GS | 3 |
| AS33891 | Core-Backbone GmbH | 2 |
| AS201054 | Stowarzyszenie e-Poludnie | 1 |
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 · 1.54K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS25084- Registry name
- CZESTMAN-COM-AS
- Registrant
- Politechnika Czestochowska
- Abuse contact
- abuse@man.pcz.pl
- Registered
- 2002-07-22
- Last changed
- 2025-03-16
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Politechnika Czestochowska
- Also known as
- CzestMAN
- Network type
- Educational/Research
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
RIPE::AS25084:AS-PCZ-POPS- Present at
- 4 exchanges
- Facilities
- 1 facilities
- Website
- http://pcz.pl/
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
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 3 authorising AS25084
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS25084
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 1,782 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