asn.dev

Autonomous system

AS51484 BLOKOWE

Residential RIPE

IPv4 addresses 11.01K 9 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 3 recorded by PCH
Upstreams 8 5 downstream
Flagged prefixes 0 none

Summary

Sieci Blokowe

Poland · AI-generated

isp residential cable dsl

BLOKOWE is operated by Sieci Blokowe S.C.

What it's used for

  • The address space carries residential and business access traffic, evidenced by netnames such as PL-BLOKOWE-20100907, BLOKOWE, BITNET, NETRAX_OSTROWIEC, and CHS, alongside reverse DNS entries like gw.sieradz.netrax.pl and gw_tuwima.netrax.pl.
  • The AS announces 11,008 IPv4 addresses across 9 prefixes and 1 IPv6 prefix, with 26 observed neighbours, indicating a regional access provider rather than a transit hub.
  • Traffic consists of subscriber eyeballs for cable and DSL services in the Sieradz and Ostrowiec Świętokrzyski regions of Poland.

Notable

  • Registrants for the majority of prefixes are Sieci Blokowe S.C., while others list Abuse-C Role with netnames like BITNET and NETRAX_OSTROWIEC, suggesting historical acquisitions or leased space.
  • The address inventory is concentrated in the 46.45.80.0/20 range, with smaller blocks in 46.45.96.0/21 and 46.45.108.0/22, reflecting a consolidated regional 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

Recorded at 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
TPIX - Internet ExchangeWarsaw, Poland195.149.232.118
Equinix Internet Exchange WarsawWarsaw, Poland195.182.218.175
Thinx IXWarsaw, Poland212.91.0.88

Transit providers

8 upstream, 5 downstream and 17 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB115
AS3356Level 3 Parent, LLC110
AS6939Hurricane Electric LLC51
AS20804Exatel S.A.29
AS33891Core-Backbone GmbH6
AS24482SG.GS5
AS20473The Constant Company, LLC1
AS24748Atman Sp. z o.o.1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 9 prefixes · 11.01K addresses IPv6 1 prefixes

CountryNamePrefixes
PLPoland10

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51484
Registry name
BLOKOWE
Registrant
BLOKOWE-PL-MNT
Abuse contact
ripe@blokowe.pl
Registered
2010-09-07
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
7 authorising AS51484
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
15 naming AS51484

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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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