ASN Lookup Tool

O2 Czech Republic, a.s. o2.cz CZ CZ 6 Routes

AS Data

AS29321

AS29321O2 Czech Republic, a.s.

AS Number 29321
AS Name CentroNetAS
Organization O2 Czech Republic, a.s.(org-stan1-ripe)
Country CZ
Website o2.cz
Number of IPv4 Routes 5
Number of IPv6 Routes 1
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2003-07-31

ASN Intelligence API for production workflows

Use ASN data for AS29321 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
94.143.168.0/21 2048
217.195.160.0/20 4096
80.243.96.0/20 4096
109.239.64.0/20 4096
194.59.240.0/22 1024
2a02:b20::/32 ~79×10²⁷

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 'AS29092 - AS29337'

as-block:       AS29092 - AS29337
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:        2018-11-22T15:27:31Z
last-modified:  2018-11-22T15:27:31Z
source:         RIPE

% Information related to 'AS29321'

% Abuse contact for 'AS29321' is 'abuse@o2.cz'

aut-num:        AS29321
org:            ORG-STaN1-RIPE
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
as-name:        CentroNetAS
descr:          Czech Republic
remarks:        --------------------------
remarks:        - IP TRANSIT -
remarks:        --------------------------
remarks:        AS16426 - NEJ.CZ
import:         from AS16426 accept ANY
export:         to AS16426 announce AS-CentroNet
remarks:        --------------------------
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2003-07-31T08:10:10Z
last-modified:  2024-06-20T15:31:34Z
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 1.121.1 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS16246 O2 Czech Republic, a.s. CZ
AS16246 NEJ.cz s.r.o CZ
AS16426 City of Columbus US

Upstreams

AS Number Description Country
AS16246 NEJ.cz s.r.o CZ

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Frequently Asked Questions

ASN AS29321 is an Autonomous System Number used to identify a network for BGP internet routing.
AS29321 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.