Autonomous system
AS42576 INTRSC-AS
Unclassified RIPE
Summary
CERT NGO
business poland small
The AS handle INTRSC-AS is held by CERT NGO.
What it's used for
- The address space carries a mix of general business and specific service endpoints, evidenced by the netname
INTRSC-NETand the reverse DNS recordmail.dc9.io. - The AS announces 512 IPv4 addresses across 2 prefixes and maintains 3 observed neighbours, a ratio consistent with a small-scale business or internal network rather than a transit provider.
- Traffic from this AS represents office workers and web/API endpoints for the organization, given its registration as a non-governmental organization.
Notable
- Registrants do not fully agree with the announcer; while
91.192.224.0/24is registered to Maciej Jan Broniarz trading as CERT NGO,193.3.166.0/24is registered to Leon Sp. z o.o. under the netnamePL-LEON-20211027. - The address inventory consists of two distinct /24 blocks, one of which is associated with a different legal entity (Leon Sp. z o.o.), suggesting a multi-tenant or leased arrangement within the AS.
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 |
|---|---|---|
| Thinx IX | Warsaw, Poland | 212.91.1.161 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS42576- Registry name
- INTRSC-AS
- Registrant
- LEON-MNT
- Abuse contact
- abuse@gausus.net
- Registered
- 2007-03-15
- Last changed
- 2026-09-30
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS42576
- ASPA
- no ASPA record
- IRR
- 67% registered · 2 of 3 announcements 1 other origin
- Route objects
- 3 naming AS42576
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 1,773 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