What is ASN AS204771?

ASN AS204771 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS204771?

AS204771 is listed under Sinergise Solutions d.o.o..

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.

AS204771 Sinergise Solutions d.o.o.

ASN Lookup Tool

Sinergise Solutions d.o.o. sinergise.com

SI 1 Routes

AS Data

AS204771

AS204771 – Sinergise Solutions d.o.o.

AS Number	204771
AS Name	SI-SINERGISE
Organization	Sinergise Solutions d.o.o. (org-ssd17-ripe)
Country	SI
Website	sinergise.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2018-01-11

ASN Intelligence API for production workflows

Use ASN data for AS204771 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
185.133.184.0/24	AS204771	Sinergise d.o.o. v likvidaciji	Sinergise d.o.o. v likvidaciji	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 'AS203940 - AS205662'

as-block:       AS203940 - AS205662
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:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE

% Information related to 'AS204771'

% Abuse contact for 'AS204771' is 'abuse@sinergise.com'

aut-num:        AS204771
as-name:        SI-SINERGISE
org:            ORG-SSD17-RIPE
remarks:        --------------------------------------------------------
remarks:        IP transit - upstreams
remarks:        AS21283, A1 Slovenija
import:         from AS21283 accept ANY
export:         to AS21283 announce AS204771
mp-import:      afi ipv4.unicast from AS21283 accept ANY
mp-export:      afi ipv4.unicast to AS21283 announce AS204771
mp-import:      afi ipv6.unicast from AS21283 accept ANY
mp-export:      afi ipv6.unicast to AS21283 announce AS204771
remarks:        --------------------------------------------------------
remarks:        AS3212, Telemach
import:         from AS3212 accept ANY
export:         to AS3212 announce AS204771
mp-import:      afi ipv4.unicast from AS3212 accept ANY
mp-export:      afi ipv4.unicast to AS3212 announce AS204771
mp-import:      afi ipv6.unicast from AS3212 accept ANY
mp-export:      afi ipv6.unicast to AS3212 announce AS204771
remarks:        --------------------------------------------------------
remarks:        AS5603, Telekom Slovenija
import:         from AS5603 accept ANY
export:         to AS5603 announce AS204771
mp-import:      afi ipv4.unicast from AS5603 accept ANY
mp-export:      afi ipv4.unicast to AS5603 announce AS204771
mp-import:      afi ipv6.unicast from AS5603 accept ANY
mp-export:      afi ipv6.unicast to AS5603 announce AS204771
remarks:        --------------------------------------------------------
sponsoring-org: ORG-ITD11-RIPE
admin-c:        JM16069-RIPE
tech-c:         JM16069-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
created:        2018-01-11T09:12:27Z
last-modified:  2026-09-07T14:27:09Z
source:         RIPE

organisation:   ORG-SSD17-RIPE
org-name:       Sinergise Solutions d.o.o.
country:        SI
reg-nr:         9375287000
org-type:       OTHER
address:        Cvetkova ulica 29, Ljubljana, 1000 Ljubljana
abuse-c:        AR44588-RIPE
mnt-ref:        MNT-IXTLAN-TEAM
created:        2026-08-21T11:27:55Z
last-modified:  2026-09-07T14:35:03Z
source:         RIPE # Filtered
mnt-by:         MNT-IXTLAN-TEAM

person:         JOZE MLAKAR
address:        Dunajska cesta 151
address:        1000
address:        Ljubljana
address:        SLOVENIA
phone:          +386 1 300 29 00
nic-hdl:        JM16069-RIPE
mnt-by:         si-ixtlan-team-1-mnt
mnt-by:         MNT-IXTLAN-TEAM
created:        2016-01-06T08:38:20Z
last-modified:  2016-01-06T12:38:04Z
source:         RIPE

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS203940 - AS205662",
    "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" : "2026-03-05",
    "date_updated" : "2026-03-05",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS204771",
    "as_name" : "SI-SINERGISE",
    "status" : "ASSIGNED",
    "import" : [ "from AS21283 accept ANY", "from AS3212 accept ANY", "from AS5603 accept ANY" ],
    "mp_import" : [ "afi ipv4.unicast from AS21283 accept ANY", "afi ipv6.unicast from AS21283 accept ANY", "afi ipv4.unicast from AS3212 accept ANY", "afi ipv6.unicast from AS3212 accept ANY", "afi ipv4.unicast from AS5603 accept ANY", "afi ipv6.unicast from AS5603 accept ANY" ],
    "export" : [ "to AS21283 announce AS204771", "to AS3212 announce AS204771", "to AS5603 announce AS204771" ],
    "mp_export" : [ "afi ipv4.unicast to AS21283 announce AS204771", "afi ipv6.unicast to AS21283 announce AS204771", "afi ipv4.unicast to AS3212 announce AS204771", "afi ipv6.unicast to AS3212 announce AS204771", "afi ipv4.unicast to AS5603 announce AS204771", "afi ipv6.unicast to AS5603 announce AS204771" ],
    "organization" : "ORG-SSD17-RIPE",
    "sponsoring_organization" : "ORG-ITD11-RIPE",
    "admin_contacts" : [ "JM16069-RIPE" ],
    "tech_contacts" : [ "JM16069-RIPE" ],
    "remarks" : [ "--------------------------------------------------------", "IP transit - upstreams", "AS21283, A1 Slovenija", "--------------------------------------------------------", "AS3212, Telemach", "--------------------------------------------------------", "AS5603, Telekom Slovenija", "--------------------------------------------------------" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT" ],
    "date_created" : "2018-01-11",
    "date_updated" : "2026-09-07",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-SSD17-RIPE",
    "name" : "Sinergise Solutions d.o.o.",
    "type" : "OTHER",
    "address" : [ "Cvetkova ulica 29, Ljubljana, 1000 Ljubljana" ],
    "street" : "Cvetkova Ulica",
    "city" : "Ljubljana",
    "zip_code" : "1000",
    "country" : [ "SI" ],
    "abuse_contacts" : [ "AR44588-RIPE" ],
    "mnt_ref" : [ "MNT-IXTLAN-TEAM" ],
    "mnt_by" : [ "MNT-IXTLAN-TEAM" ],
    "date_created" : "2026-08-21",
    "date_updated" : "2026-09-07",
    "source" : "RIPE"
  },
  "administrative_contacts" : [ {
    "handle" : "JM16069-RIPE",
    "name" : "JOZE MLAKAR",
    "address" : [ "Dunajska cesta 151", "1000", "Ljubljana", "SLOVENIA" ],
    "street" : "Dunajska Cesta",
    "city" : "Ljubljana",
    "zip_code" : "1000",
    "country" : "SLOVENIA",
    "phone" : [ "+386 1 300 29 00" ],
    "mnt_by" : [ "si-ixtlan-team-1-mnt", "MNT-IXTLAN-TEAM" ],
    "date_created" : "2016-01-06",
    "date_updated" : "2016-01-06",
    "source" : "RIPE",
    "addressCountry" : "SLOVENIA"
  } ],
  "technical_contacts" : [ {
    "handle" : "JM16069-RIPE",
    "name" : "JOZE MLAKAR",
    "address" : [ "Dunajska cesta 151", "1000", "Ljubljana", "SLOVENIA" ],
    "street" : "Dunajska Cesta",
    "city" : "Ljubljana",
    "zip_code" : "1000",
    "country" : "SLOVENIA",
    "phone" : [ "+386 1 300 29 00" ],
    "mnt_by" : [ "si-ixtlan-team-1-mnt", "MNT-IXTLAN-TEAM" ],
    "date_created" : "2016-01-06",
    "date_updated" : "2016-01-06",
    "source" : "RIPE",
    "addressCountry" : "SLOVENIA"
  } ]
}

Peers

AS Number	Description	Country
AS5603	Telekom Slovenije, d.d.	SI
AS3212	Telemach Slovenija d.o.o.	SI
AS21283	A1 Slovenija telekomunikacijske storitve,d.d.	SI

Upstreams

AS Number	Description	Country
AS5603	Telekom Slovenije, d.d.	SI
AS3212	Telemach Slovenija d.o.o.	SI