12570 ITSELF Network and internet service provider., CZ
Adjacency: 11 Upstream: 2 Downstream: 9
Upstream Adjacent AS list
AS47232 ISPALLIANCE, CZ
AS16246 AS16246 NEJ.cz s.r.o, CZ
Downstream Adjacent AS list
AS196815 LANSERVIS-AS, CZ
AS197798 NET-CONNECT, CZ
AS204886 METRO-HU, CZ
AS211334 MASTER_IT_TECHNOLOGIES-2, CZ
AS25192 CZNIC-AS, CZ
AS213354 INTERNATIONAL-HOSTING-SOLUTIONS-AS EU DC route, GB
AS51424 ASAGNET, CZ
AS47941 REDHAT, IE
AS198620 BRALU_JURJANU_BIEDRIBA-AS, LV
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 4230 AS12570 ORG+TRN Originate: 53760 /16.29 Transit: 9216 /18.83 ITSELF Network and internet service provider., CZ
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 33118 AS12570 ITSELF Network and internet service provider. 11 0 0 11 0 0.00% Prefix AS Path Aggregation Suggestion 80.78.144.0/20 6939 5610 16246 12570 88.83.224.0/19 6939 5610 16246 12570 89.190.40.0/21 6939 5610 16246 12570 89.190.48.0/20 6939 5610 16246 12570 109.105.32.0/19 6939 5610 16246 12570 185.8.188.0/22 6939 5610 16246 12570 193.17.248.0/22 6939 5610 16246 12570 195.78.122.0/23 6939 5610 16246 12570 212.4.128.0/19 6939 5610 16246 12570 212.96.160.0/19 6939 5610 16246 12570 213.211.32.0/19 6939 5610 16246 12570
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 185.243.168.0/22 Announced
- 91.222.52.0/24 Withdrawn
whois: 402590
IANA has recorded AS12570 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS12570\n % 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.
% 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
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
reg-nr: 60193336
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: 2026-05-13T07:30:10Z
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 1.122.1 (DEXTER)