ASN Lookup Tool

O2 Czech Republic, a.s. o2.cz CZ CZ 13 Routes

AS Data

AS12570

AS12570O2 Czech Republic, a.s.

AS Number 12570
AS Name ITSELF
Organization O2 Czech Republic, a.s.(org-stan1-ripe)
Country CZ
Website o2.cz
Number of IPv4 Routes 11
Number of IPv6 Routes 2
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2002-05-27

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IP Ranges

Route # IPs
88.83.224.0/19 8192
89.190.40.0/21 2048
193.17.248.0/22 1024
80.78.144.0/20 4096
212.96.160.0/19 8192
195.78.122.0/23 512
89.190.48.0/20 4096
213.211.32.0/19 8192
2a0b:bb41::/32 ~79×10²⁷
185.8.188.0/22 1024

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS12557 - AS13223'

as-block:       AS12557 - AS13223
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:24Z
last-modified:  2018-11-22T15:27:24Z
source:         RIPE

% Information related to 'AS12570'

% Abuse contact for 'AS12570' is 'abuse@o2.cz'

aut-num:        AS12570
as-name:        ITSELF
descr:          Network and internet service provider.
descr:          Czech Republic
remarks:        ======================= Upstream providers ========================
mp-import:      afi any.unicast from AS3257 accept ANY
mp-import:      afi any.unicast from AS6939 accept ANY
mp-import:      afi any.unicast from AS9002 accept ANY
mp-export:      afi any.unicast to AS3257 announce AS-NEJCZ-TRANSIT
mp-export:      afi any.unicast to AS6939 announce AS-NEJCZ-TRANSIT
mp-export:      afi any.unicast to AS9002 announce AS-NEJCZ-TRANSIT
remarks:        ========================= Customers ==========================
mp-import:      afi any.unicast from AS12570:AS-CUSTOMERS action pref=900; accept <AS12570:AS-CUSTOMERS+$>
mp-export:      afi any.unicast to AS12570:AS-CUSTOMERS announce ANY
remarks:        ======================= NIX peerings ==========================
mp-import:      from AS-NIXCZ-RSCLIENTS action pref=500; accept ANY
mp-export:      to AS-NIXCZ-RSCLIENTS announce AS-NEJCZ-TRANSIT
remarks:        = NIX.CZ route server peerings
mp-import:      from AS12570:AS-NIX-PEERS action pref=500; accept ANY
mp-export:      to AS12570:AS-NIX-PEERS announce AS-CZECHBONE
remarks:        = NIX.CZ direct peerings
mp-import:      from AS-NIXSK-RSCLIENTS action pref=500; accept ANY
mp-export:      to AS-NIXSK-RSCLIENTS announce AS-CZECHBONE
remarks:        = NIX.SK route server peerings
remarks:        ======================= Direct peerings ==========================
mp-import:      afi any.unicast from AS15169 accept AS15169
mp-export:      afi any.unicast to AS15169 announce AS-NEJCZ-TRANSIT
remarks:        --------------------------------------------------------------------------------------------------------
remarks:
remarks:
org:            ORG-STaN1-RIPE
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
remarks:        --------------------------------------------------------------------------------------------------------
remarks:
remarks:        BGP communities accepted from downstream:
remarks:        1. Blackhole
remarks:        12570:666
remarks:
remarks:        --------------------------------------------------------------------------------------------------------
remarks:
remarks:        Routing issues and peering requests: noc at itself.cz
remarks:
remarks:        --------------------------------------------------------------------------------------------------------
remarks:
remarks:        This Autonomous System is present at the following exchanges: NIX-CZ, NIX-SK and SIX-SK.
remarks:
remarks:        --------------------------------------------------------------------------------------------------------
remarks:
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2002-05-27T13:11:15Z
last-modified:  2024-06-20T15:31:33Z
source:         RIPE

organisation:   ORG-STaN1-RIPE
org-name:       O2 Czech Republic, a.s.
country:        CZ
org-type:       LIR
address:        Za Brumlovkou 266/2
address:        140 22
address:        Praha 4 - Michle
address:        CZECH REPUBLIC
phone:          +420 2 71466184
fax-no:         +420 2 71464414
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         CZO2-RIPE
abuse-c:        AR14410-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        AS5610-MTN
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2004-04-17T11:04:17Z
last-modified:  2020-12-16T12:31:56Z
source:         RIPE # Filtered

role:           5610-Tech-and-Admin
address:        Za Brumlovkou 266/2
address:        Praha 4 - Michle, PSC 140 22
nic-hdl:        CZO2-RIPE
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         VAKO1-RIPE
tech-c:         HVJI1-RIPE
abuse-mailbox:  abuse@o2.cz
org:            ORG-STaN1-RIPE
mnt-by:         AS5610-MTN
created:        2016-02-18T09:58:30Z
last-modified:  2018-04-20T10:44:21Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)

Parsed Whois Response

Peers

AS Number Description Country
AS198620 Bralu Jurjanu biedriba LV
AS211334 MASTER IT Technologies, a.s. CZ
AS196815 LAN servis s.r.o. CZ
AS202979 NGA Services, spol. s r.o. CZ
AS16246 NEJ.cz s.r.o CZ
AS9002 RETN Limited GB
AS6939 Hurricane Electric LLC US
AS197798 Net-Connect s.r.o. CZ
AS47232 ISP Alliance a.s. CZ
AS197798 Net Connect s.r.o. CZ

Upstreams

AS Number Description Country
AS16246 NEJ.cz s.r.o CZ
AS47232 ISP Alliance a.s. CZ

Downstreams

AS Number Description Country
AS198620 Bralu Jurjanu biedriba LV
AS211334 MASTER IT Technologies, a.s. CZ
AS196815 LAN servis s.r.o. CZ
AS202979 NGA Services, spol. s r.o. CZ
AS16246 NEJ.cz s.r.o CZ
AS197798 Net Connect s.r.o. CZ
AS205947 NDC ICT Solutions s.r.o. CZ
AS204886 Metropolitni sit Humpolec spol. s r.o. CZ
AS51424 Jiri Sperl CZ
AS48091 Kraj Vysocina CZ

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Frequently Asked Questions

ASN AS12570 is an Autonomous System Number used to identify a network for BGP internet routing.
AS12570 is listed under O2 Czech Republic, a.s..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.