asn.dev

Autonomous system

AS12570 ITSELF Network and internet service provider.

Unclassified RIPE

IPv4 addresses 49.66K 29 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 0 recorded by PCH
Upstreams 1 9 downstream
Flagged prefixes 0 none

Summary

ITSELF

Czechia · AI-generated

isp business hosting

A Czech provider announcing 29 prefixes under a numbered contact handle, with three brands in its reverse zone.

What it's used for

  • Internet access and hosting. 49,664 addresses in 29 IPv4 prefixes, two IPv6 prefixes, and 11 observed BGP neighbours.

Notable

  • Almost every block shares the netname family CZ-CZNET-, dated from 990707 through 20030327, 20050316, 20060111, 20080611, 20090914 and 20121101.
  • The registry contact is not a name but a number: 5610-Tech-and-Admin.
  • One block breaks the pattern entirely — 193.17.248.0/22, netname ZEAL-CZ, registered to ZEAL s.r.o.
  • Reverse names come from three domains: 254.247.freebone.cz, 213-211-59-254.cust.selfnet.cz and visit.keznews.com.

Interesting

  • Seven distinct netname dates across a decade, all under one family, is an unusually legible growth record. The company asked the registry for more space in 1999, 2003, 2005, 2006, 2008, 2009 and 2012, and each request is still visible as its own block.
  • A contact recorded as 5610-Tech-and-Admin is the registry's internal handle showing through into the human-readable field. It is maximally durable and tells a reader nothing, which is the trade role accounts always make.
  • selfnet.cz alongside an AS called ITSELF is the same idea twice, in two languages' worth of wordplay. freebone.cz is a third name again, and none of them is the registered company — a provider's brands multiply faster than its paperwork.

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

1 upstream, 9 downstream and 16 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS16246O2 Czech Republic, a.s.715

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 29 prefixes · 49.66K addresses IPv6 2 prefixes

CountryNamePrefixes
CZCzechia31

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12570
Registry name
ITSELF
Registrant
AS5610-MTN
Abuse contact
abuse@o2.cz
Registered
2002-05-27
Last changed
2024-06-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 13 valid, 0 with no ROA
ROAs
13 authorising AS12570
ASPA
no ASPA record
IRR
100% registered · 13 of 13 announcements
Route objects
17 naming AS12570

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 432 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