ASN AS39453 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS39453?

AS39453 is listed under Ustav zdravotnickych informaci a statistiky Ceske republiky.

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.

AS39453 Ustav zdravotnickych informaci a statistiky Ceske republiky

ASN Lookup Tool

Ustav zdravotnickych informaci a statistiky Ceske republiky uzis.cz

CZ 1 Routes

AS Data

AS39453

AS39453 – Ustav zdravotnickych informaci a statistiky Ceske republiky

AS Number	39453
AS Name	UZIS-AS
Organization	Ustav zdravotnickych informaci a statistiky Ceske republiky (org-uzia2-ripe)
Country	CZ
Website	uzis.cz
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2006-02-27

ASN Intelligence API for production workflows

Use ASN data for AS39453 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
193.16.104.0/24	AS39453	Ustav zdravotnickych informaci a statistiky Ceske republiky	Ustav zdravotnickych informaci a statistiky Ceske republiky	256

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 'AS38912 - AS39599'

as-block:       AS38912 - AS39599
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:        2023-08-29T07:47:54Z
last-modified:  2023-08-29T07:47:54Z
source:         RIPE

% Information related to 'AS39453'

% Abuse contact for 'AS39453' is 'abuse@uzis.cz'

aut-num:        AS39453
as-name:        UZIS-AS
org:            ORG-UZIA2-RIPE
import:         from AS8928 accept ANY
export:         to AS8928 announce AS39453
import:         from AS12767 accept ANY
export:         to AS12767 announce AS39453
admin-c:        UA17790-RIPE
tech-c:         UT963-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         DIALTELECOM-MNT
mnt-by:         AS12767-MNT
created:        2006-02-27T10:35:19Z
last-modified:  2023-04-24T13:18:19Z
source:         RIPE
sponsoring-org: ORG-IA8-RIPE

organisation:   ORG-UZIA2-RIPE
org-name:       Ustav zdravotnickych informaci a statistiky Ceske republiky
country:        CZ
org-type:       OTHER
address:        Palackeho nam. 375/4
address:        P. O. Box 60
address:        128 01 Praha 2 Nove Mesto
address:        Czech Republic
admin-c:        UA17790-RIPE
tech-c:         UT963-RIPE
abuse-c:        ACRO52450-RIPE
mnt-ref:        DIALTELECOM-MNT
mnt-by:         DIALTELECOM-MNT
created:        2023-04-13T13:28:04Z
last-modified:  2023-04-24T11:50:20Z
source:         RIPE # Filtered

person:         UZIS-CR Admin
address:        Palackeho nam. 375/4, 128 01 Praha 2, Czech Republic
phone:          +420 224 972 216
nic-hdl:        UA17790-RIPE
mnt-by:         DIALTELECOM-MNT
created:        2023-04-13T13:24:11Z
last-modified:  2023-04-13T19:00:40Z
source:         RIPE # Filtered

person:         UZIS-CR Tech
address:        Palackeho nam. 375/4, 128 01 Praha 2, Czech Republic
phone:          +420 224 973 333
nic-hdl:        UT963-RIPE
mnt-by:         DIALTELECOM-MNT
created:        2023-04-13T13:25:39Z
last-modified:  2023-04-13T19:01:24Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS38912 - AS39599",
    "description" : [ "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" ],
    "date_created" : "2023-08-29",
    "date_updated" : "2023-08-29",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS39453",
    "as_name" : "UZIS-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS8928 accept ANY", "from AS12767 accept ANY" ],
    "export" : [ "to AS8928 announce AS39453", "to AS12767 announce AS39453" ],
    "organization" : "ORG-UZIA2-RIPE",
    "sponsoring_organization" : "ORG-IA8-RIPE",
    "admin_contacts" : [ "UA17790-RIPE" ],
    "tech_contacts" : [ "UT963-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "DIALTELECOM-MNT", "AS12767-MNT" ],
    "date_created" : "2006-02-27",
    "date_updated" : "2023-04-24",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-UZIA2-RIPE",
    "name" : "Ustav zdravotnickych informaci a statistiky Ceske republiky",
    "type" : "OTHER",
    "address" : [ "Palackeho nam. 375/4", "P. O. Box 60", "128 01 Praha 2 Nove Mesto", "Czech Republic" ],
    "street" : "Palackeho Nam.",
    "city" : "Nove Mesto",
    "zip_code" : "128 01",
    "country" : [ "CZ" ],
    "admin_contacts" : [ "UA17790-RIPE" ],
    "tech_contacts" : [ "UT963-RIPE" ],
    "abuse_contacts" : [ "ACRO52450-RIPE" ],
    "mnt_ref" : [ "DIALTELECOM-MNT" ],
    "mnt_by" : [ "DIALTELECOM-MNT" ],
    "date_created" : "2023-04-13",
    "date_updated" : "2023-04-24",
    "source" : "RIPE",
    "addressCountry" : "CZECH REPUBLIC"
  },
  "administrative_contacts" : [ {
    "handle" : "UA17790-RIPE",
    "name" : "UZIS-CR Admin",
    "address" : [ "Palackeho nam. 375/4, 128 01 Praha 2, Czech Republic" ],
    "street" : "Palackeho Nam.",
    "city" : "Praha 2",
    "zip_code" : "128 01",
    "country" : "CZECH REPUBLIC",
    "phone" : [ "+420 224 972 216" ],
    "mnt_by" : [ "DIALTELECOM-MNT" ],
    "date_created" : "2023-04-13",
    "date_updated" : "2023-04-13",
    "source" : "RIPE",
    "addressCountry" : "CZECH REPUBLIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "UT963-RIPE",
    "name" : "UZIS-CR Tech",
    "address" : [ "Palackeho nam. 375/4, 128 01 Praha 2, Czech Republic" ],
    "street" : "Palackeho Nam.",
    "city" : "Praha 2",
    "zip_code" : "128 01",
    "country" : "CZECH REPUBLIC",
    "phone" : [ "+420 224 973 333" ],
    "mnt_by" : [ "DIALTELECOM-MNT" ],
    "date_created" : "2023-04-13",
    "date_updated" : "2023-04-13",
    "source" : "RIPE",
    "addressCountry" : "CZECH REPUBLIC"
  } ]
}

Peers

AS Number	Description	Country
AS5610	O2 Czech Republic, a.s.	CZ
AS8928	GTT Communications Inc.	US
AS12767	T Mobile Czech Republic a.s.	CZ

Upstreams

AS Number	Description	Country
AS5610	O2 Czech Republic, a.s.	CZ