Autonomous system
AS205679 ACNG AC Systemy Sp. z o.o.
Residential RIPE Cable/DSL/ISP
Summary
AC Systemy
isp residential cable regional
The AS handle ACNG is operated by AC Systemy Sp. z o.o.
What it's used for
- The address space carries subscriber traffic, evidenced by reverse DNS entries pointing to
net.acsystemy.pland registrant netnames such asPL-ACNG3. - The network announces 3584 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, maintaining 10 observed neighbours, a ratio consistent with a regional access provider.
- As a cable and DSL ISP, the traffic consists of residential and small business subscriber connections.
Notable
- All registrants for the announced prefixes are consistent with the announcer, listing
AC Systemy Network TeamandAC Systemy Sp. z o.o. - The inventory consists of four distinct IPv4 blocks, including three /22s and one /23, alongside a single IPv6 /29.
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 | 195.149.232.168 |
Transit providers
7 upstream, 0 downstream and 9 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 3.07K addresses IPv6 20 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 23 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS205679- Registry name
- ACNG
- Registrant
- AC Systemy Sp. z o.o.
- Abuse contact
- complaint@acsystemy.pl
- Registered
- 2017-06-26
- Last changed
- 2021-12-02
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- AC Systemy Sp. z o. o.
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- Present at
- 3 exchanges
- Website
- http://www.acsystemy.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 · 10 valid, 0 with no ROA
- ROAs
- 7 authorising AS205679
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 21 naming AS205679
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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