AS59782 — InterBlock-ASN ITB Sp. z o.o.

Network type: residential

AS59782 announces 1 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.

About this network

The AS handle INTERBLOCK-ASN is held by InterBlock-ASN ITB Sp. z o.o.

What it's used for

• The address space carries residential broadband traffic, evidenced by reverse DNS entries such as pppoe-dynamic-d-255.interblock.pl and undef-f-254.interblock.pl.
• The network announces 2048 IPv4 addresses across 1 prefix (81.163.200.0/21) and maintains 7 observed neighbours, a ratio consistent with a regional access provider.
• Traffic consists of subscriber eyeballs for a local internet service provider operating in Stalowa Wola, Poland.

Notable

• The RDAP registrant ITB Sp. z o.o. aligns with the AS holder InterBlock-ASN ITB Sp. z o.o., confirming consistent ownership.
• The address inventory is a single contiguous /21 block, typical for a regional ISP managing a specific geographic footprint.

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

Announced prefixes

• 81.163.200.0/21

Upstream networks

• AS29535 Orange Polska Spolka Akcyjna
• AS219062 Nera sp z.o.o
• AS5617 Orange Polska Spolka Akcyjna
• AS24482 SG.GS
• AS174 Cogent Communications, LLC

Adjacent networks

• AS29535 Orange Polska Spolka Akcyjna
• AS219062 Nera sp z.o.o
• AS5617 Orange Polska Spolka Akcyjna
• AS24482 SG.GS
• AS174 Cogent Communications, LLC

Routing security

• RPKI: 9 valid, 0 invalid and 0 not-found announcements; 10 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 10 route objects.
• Listed in as-sets: AS-EF-GLOBAL, AS-EP-POLMIX, AS-EPIX, AS-EPIX-LOCAL, AS-EPIX-TRANSIT, AS-HURRICANE, AS-IPARTNERS, AS-RETN-ACTUAL-V4, AS-WDM-NET, AS1299:AS-TWELVE99-EU-V4, AS1299:AS-TWELVE99-EU-V6, AS219062:AS-SET, AS29535:AS-MIX2, AS29535:AS-TPIX, AS5617:AS-PL, AS59782:AS-INTERBLOCK, AS8246:AS-TPNET.