What is ASN AS199711?

ASN AS199711 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS199711?

AS199711 is listed under National Cyber and Information Security Agency.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS199711 National Cyber and Information Security Agency

ASN Lookup Tool

National Cyber and Information Security Agency nukib.gov.cz

CZ 4 Routes

AS Data

AS199711

AS199711 – National Cyber and Information Security Agency

AS Number	199711
AS Name	NCISA-AS
Organization	National Cyber and Information Security Agency(org-nbu2-ripe)
Country	CZ
Website	nukib.gov.cz
Number of IPv4 Routes	2
Number of IPv6 Routes	2
ASN type	GOVERNMENT
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2014-02-28

ASN Intelligence API for production workflows

Use ASN data for AS199711 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a01:95a0:8000::/33	AS199711	National Cyber and Information Security Agency	National Cyber and Information Security Agency	~40×10²⁷
2a01:95a0::/33	AS199711	National Cyber and Information Security Agency	National Cyber and Information Security Agency	~40×10²⁷
185.48.21.0/24	AS199711	National Cyber and Information Security Agency	National Cyber and Information Security Agency	256
185.48.22.0/23	AS199711	National Cyber and Information Security Agency	National Cyber and Information Security Agency	512

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 '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 'AS199711'

% Abuse contact for 'AS199711' is 'abuse@nukib.gov.cz'

aut-num:        AS199711
as-name:        NCISA-AS
descr:          National Cyber and Information Security Agency
descr:          Brno
org:            ORG-NBU2-RIPE
import:         from AS2852 action pref=100; accept any
import:         from AS2819 accept ANY
export:         to AS2852 announce AS199711
export:         to AS2819 announce AS199711
admin-c:        NCAI1-RIPE
tech-c:         NCAI1-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         NBUCZ-MNT
created:        2014-02-28T07:02:10Z
last-modified:  2022-11-04T07:28:02Z
source:         RIPE

organisation:   ORG-NBU2-RIPE
org-name:       National Cyber and Information Security Agency
country:        CZ
org-type:       LIR
address:        PO BOX no. 17
address:        616 00
address:        Brno
address:        CZECH REPUBLIC
phone:          +420 541 110 777
fax-no:         +420 541 110 723
abuse-c:        AR69284-RIPE
admin-c:        NCAI1-RIPE
tech-c:         NCAI1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        NBUCZ-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         NBUCZ-MNT
created:        2013-12-02T10:42:12Z
last-modified:  2023-10-02T06:10:03Z
source:         RIPE # Filtered

role:           NCISA Admins
address:        National Cyber and Information Security Agency
address:        Mucednicka 1125/31
address:        Brno
address:        616 00
address:        The Czech Republic
phone:          +420 541 110 777
org:            ORG-NBU2-RIPE
admin-c:        MT18104-RIPE
tech-c:         MT18104-RIPE
admin-c:        MM56939-RIPE
tech-c:         MM56939-RIPE
nic-hdl:        NCAI1-RIPE
mnt-by:         TENCZ-MNT
mnt-by:         NBUCZ-MNT
created:        2017-10-30T12:31:04Z
last-modified:  2025-08-07T05:20:47Z
source:         RIPE # Filtered

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

Parsed Whois Response

Peers

AS Number	Description	Country
AS15935	ha-vel internet s.r.o.	CZ
AS2819	T Mobile Czech Republic a.s.	CZ
AS2852	CESNET z.s.p.o.	CZ
AS15935	ha vel internet s.r.o.	CZ

Upstreams

AS Number	Description	Country
AS2852	CESNET z.s.p.o.	CZ
AS15935	ha vel internet s.r.o.	CZ