Autonomous system
AS57355 NETDESIGN-ZONE
Unclassified RIPE
Summary
networkers.pl
educational research small
The AS handle NETDESIGN-ZONE is held by networkers.pl Sp. z o.o.
What it's used for
- The space carries addresses with reverse DNS names like
numerek-64.w_takiej_sobie_zajefajnej_sieci, indicating a small, informal network environment. - The AS announces 256 IPv4 addresses across 1 prefix (217.17.37.0/24) and has 1 observed neighbour, a ratio consistent with a small-scale or research network rather than a transit or large access provider.
- PeeringDB classifies the operator as Educational/Research, and the associated website and GitHub repository suggest a focus on network design and experimentation.
Notable
- The RDAP registrant for the announced prefix is listed as ATMAN NOC, which differs from the AS holder networkers.pl Sp. z o.o., suggesting the address space may be leased or managed by a different entity.
- The address inventory consists of a single /24 block, indicating a compact and limited scope of operation.
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 |
|---|---|---|
| AS15694 | Atman Sp. z o.o. | 59 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS57355- Registry name
- netdesign-zone
- Registrant
- LB45043-MNT
- Abuse contact
- abuse@null0.pl
- Registered
- 2011-10-07
- Last changed
- 2018-09-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 2 authorising AS57355
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 2 naming AS57355
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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