Autonomous system
AS50121 NETMAR-AS ul. Sobieskiego 30E
Unclassified RIPE Cable/DSL/ISP
Summary
Netmar
isp residential regional cable
NETMAR-AS is operated by Netmar Infrastruktura Sp. z o.o.
What it's used for
- The address space carries residential and business customer traffic, evidenced by reverse DNS entries such as
hB0633200.cust.netmar.net.plandhC1F2D480.cust.netmar.net.pl. - The network announces 2560 IPv4 addresses across 2 prefixes and maintains 8 observed neighbours, a ratio consistent with a regional access provider rather than a transit carrier.
- As a regional cable and DSL ISP based in Myślenice, the traffic consists of subscriber eyeballs and local business data transmission.
Notable
- Registrants for both announced prefixes match the AS holder, Netmar Infrastruktura Sp. z o.o., with the netname
NETMAR-NET. - The address inventory is compact, consisting of one /21 and one /23 block, both located in Poland.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| TPIX - Internet Exchange | Warsaw, Poland | 195.149.233.82 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 · 2.56K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS50121- Registry name
- NETMAR-AS
- Registrant
- DCENTER-MNT
- Abuse contact
- abuse@netmar.net.pl
- Registered
- 2012-07-05
- Last changed
- 2026-06-29
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- NETMAR
- Also known as
- NETMAR
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Balanced
- Peering policy
- Open
- Present at
- 2 exchanges
- Website
- http://www.netmar.net.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
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS50121
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS50121
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 1,783 prefixes, as published 2026-10-20. 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