AS56441 — TELEFONSERWIS-AS Antoni Kois

Network type: residential

AS56441 announces 3 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

The AS handle TELEFONSERWIS-AS is held by Telefon Serwis (Zakład Teleradiotechniki Telefon Serwis Antoni Kois).

What it's used for

• The address space carries residential fiber-to-the-home traffic, as indicated by reverse DNS entries such as 91-224-118-128.fttx.telefonserwis.pl and 91-197-241-64.fttx.telefonserwis.pl.
• The network announces 1024 IPv4 addresses across 3 prefixes and maintains 4 observed neighbours, a ratio consistent with a local access provider rather than a transit carrier.
• Traffic originates from subscriber endpoints connected via the operator's fiber infrastructure in the Jasło region of Poland.

Notable

• All registrants for the announced prefixes are listed as Antoni Kois, matching the AS holder name.
• The inventory consists of three distinct IPv4 blocks: 91.224.118.0/23, 91.197.241.0/24, and 91.231.125.0/24, all located in Poland.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 91.197.241.0/24
• 91.224.118.0/23
• 91.231.125.0/24

Upstream networks

• AS20804 Exatel S.A.
• AS50607 Stowarzyszenie e-Poludnie
• AS24482 SG.GS

Adjacent networks

• AS20804 Exatel S.A.
• AS50607 Stowarzyszenie e-Poludnie
• AS24482 SG.GS

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 5 route objects.
• Listed in as-sets: AS-DATA-COM, AS-EF-GLOBAL, AS-EP-POLMIX, AS-EPIX, AS-EPIX-LOCAL, AS-EPIX-TRANSIT, AS-EXATEL-INT, AS-EXATEL-PL, AS-MULTIMEDIA, AS-TPIX, AS20804:AS-FROM-AS56441, AS21021:AS-MULTIMEDIA-D-CIX, AS21021:AS-MULTIMEDIA-LEVEL3, AS21021:AS-MULTIMEDIA-TPSA-WA-WA, AS29535:AS-TPIX, AS5617:AS-PL, AS5617:AS-WORLD-TRANSIT.