asn.dev

Autonomous system

AS59782 INTERBLOCK-ASN

Residential RIPE NCC Cable/DSL/ISP

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 0 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

InterBlock

Poland · AI-generated

isp residential regional cable

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. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

5 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5617Orange Polska Spolka Akcyjna328
AS201054Stowarzyszenie e-Poludnie112
AS174Cogent Communications, LLC58
AS29535Orange Polska Spolka Akcyjna16
AS24482SG.GS8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland1

Registry

Allocation record

RIPE NCC · via Atlas (registry data)
Registry
RIPE NCC
Registered
2014-10-03
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
INTERBLOCK
Also known as
INTERBLOCK
Network type
Cable/DSL/ISP
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Open
Present at
1 exchanges
Website
http://interblock.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

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
10 authorising AS59782
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
10 naming AS59782

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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

Cross-check