ResearchRouting table, RPKI, IRR & looking glass

AS200070 CZ.NIC, z.s.p.o.

AS200070 (CZNIC-AS2) is registered to CZ.NIC, z.s.p.o. in CZ, through RIPE. It originates 5 prefixes in the global routing table.

3
IPv4 prefixes
2
IPv6 prefixes
768
IPv4 addresses
100%
RPKI valid

Who holds AS200070

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS200070
Handle
CZNIC-AS2
Organization
CZ.NIC, z.s.p.o.
Country
CZ
Registry
RIPE
ASPA
17 providers
WHOIS recordRIPE
% 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 'AS199178 - AS200350'

as-block:       AS199178 - AS200350
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:        2025-11-24T15:16:53Z
last-modified:  2025-11-24T15:16:53Z
source:         RIPE

% Information related to 'AS200070'

% Abuse contact for 'AS200070' is 'abuse@nic.cz'

aut-num:        AS200070
as-name:        CZNIC-AS2
org:            ORG-Cz1-RIPE
remarks:
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT IMPORT
mp-import:      afi any.unicast from AS200070:AS-TRANSIT accept ANY
remarks:
remarks:        EXCHANGE POINTS IMPORT
mp-import:      afi any.unicast from AS200070:AS-IX accept ANY
remarks:        ----------------------------------------------------------------------
remarks:
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT EXPORT
mp-export:      afi any.unicast to AS200070:AS-TRANSIT announce AS-CZNIC
remarks:
remarks:        EXCHANGE POINTS EXPORT
mp-export:      afi any.unicast to AS200070:AS-IX announce AS-CZNIC
remarks:        ----------------------------------------------------------------------
remarks:
admin-c:        CZ-RIPE
tech-c:         CZ-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CZ-NIC-MNT
created:        2013-10-16T10:17:51Z
last-modified:  2017-11-15T12:29:16Z
source:         RIPE

organisation:   ORG-Cz1-RIPE
org-name:       CZ.NIC, z.s.p.o.
country:        CZ
reg-nr:         67985726
org-type:       LIR
address:        Milesovska 5
address:        13000
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420222745111
fax-no:         +420222745112
admin-c:        MP12962-RIPE
admin-c:        JARA
admin-c:        OF156-RIPE
mnt-ref:        CZ-NIC-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CZ-NIC-MNT
abuse-c:        CZ-RIPE
created:        2004-04-17T11:04:42Z
last-modified:  2026-05-13T07:30:28Z
source:         RIPE # Filtered

role:           Top level domain .CZ Operations
address:        CZ.NIC, z.s.p.o.
address:        Milesovska 5
address:        Praha 3
address:        130 00
address:        The Czech Republic
phone:          +420 222 745 111
fax-no:         +420 222 745 112
abuse-mailbox:  abuse@nic.cz
admin-c:        OF156-RIPE
tech-c:         MP12962-RIPE
tech-c:         JARA
nic-hdl:        CZ-RIPE
mnt-by:         CZ-NIC-MNT
created:        2003-05-16T20:14:31Z
last-modified:  2025-10-10T09:03:19Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.124.1 (DEXTER)


What AS200070 announces

Prefixes originated by AS200070 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
3
IPv6 prefixes
2
IPv4 addresses
768 (3 /24s)
RPKI valid
5 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS200070
10
With an IRR route object
5 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (3)
IPv6 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS200070 is reached through

The AS just before AS200070 in the paths our looking glass collectors hold, for 5 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPECZNIC-AS2RIPE-NCC-END-MNT, CZ-NIC-MNT

Route objects with origin AS200070: RIPE 8 · RADB 1

as-sets that list AS200070 (14)