43542 OPTONET-AS, CZ
Adjacency: 6 Upstream: 2 Downstream: 4
Upstream Adjacent AS list
AS6855 SK-TELEKOM Slovak Telekom T-Mobile CZ, SK
AS16019 VODAFONE-CZ-AS, CZ
Downstream Adjacent AS list
AS48091 ROWANET-AS, CZ
AS44104 LCJ-AS, CZ
AS202979 NGASERVICES, CZ
AS207945 CNI, CZ
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 11936 AS43542 ORG+TRN Originate: 8192 /19.00 Transit: 3584 /20.19 OPTONET-AS, 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 % 44293 AS43542 OPTONET-AS, CZ 1 0 0 1 0 0.00% Prefix AS Path Aggregation Suggestion 78.156.128.0/19 4777 2497 3320 6855 43542
whois: 402332
IANA has recorded AS43542 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS43542\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 'AS43075 - AS44168'
as-block: AS43075 - AS44168
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: 2023-12-11T15:09:58Z
last-modified: 2023-12-11T15:09:58Z
source: RIPE
% Information related to 'AS43542'
% Abuse contact for 'AS43542' is 'abuse@optonet.cz'
aut-num: AS43542
as-name: OptoNet-AS
org: ORG-OCLS3-RIPE
remarks: ======== TRANSIT UPSTREAM ========
remarks: -- VODAFONE-CZ --
import: from AS16019 accept any
export: to AS16019 announce AS-OPTONET-TRANSIT
remarks: -- T-Mobile CZ --
import: from AS6855 accept any
export: to AS6855 announce AS-OPTONET-TRANSIT
remarks: ======== IXs peers ========
remarks: -- NIX.CZ ROUTESERVERS --
import: from AS47200 accept ANY
export: to AS47200 announce AS-OPTONET-TRANSIT
remarks: ======== TRANSIT CUSTOMERS ========
remarks: -- Kraj Vysocina --
import: from AS48091 accept AS48091
export: to AS48091 announce any
remarks: -- LCJ s.r.o. --
import: from AS44104 accept AS44104
export: to AS44104 announce any
remarks: -- NGA Services, spol. s r.o. --
import: from AS202979 accept AS202979 AS203365
export: to AS202979 announce any
remarks: -- CNI Group s.r.o. --
import: from AS207945 accept AS207945
export: to AS207945 announce any
admin-c: TJ1042-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
tech-c: TJ1042-RIPE
mnt-by: MNT-OPTONET
created: 2007-08-20T08:25:37Z
last-modified: 2026-03-16T07:54:18Z
source: RIPE # Filtered
organisation: ORG-OCLS3-RIPE
org-name: OptoNet Communication, spol. s.r.o.
country: CZ
org-type: LIR
address: Cerveny Kriz 318
address: 586 01
address: Jihlava
address: CZECH REPUBLIC
phone: +420564040152
fax-no: +420564040134
admin-c: TJ1042-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: MNT-OPTONET
mnt-ref: MNT-OPTONET_JT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: MNT-OPTONET
abuse-c: AOC17-RIPE
created: 2006-09-25T15:28:01Z
last-modified: 2022-12-02T13:59:08Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% Access from your host has been temporarily denied.
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% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)