ASN AS56747 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS56747?

AS56747 is listed under Nelson Services, s.r.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.

AS56747 Nelson Services, s.r.o.

ASN Lookup Tool

Nelson Services, s.r.o. nelson.sk

SK 1 Routes

AS Data

AS56747

AS56747 – Nelson Services, s.r.o.

AS Number	56747
AS Name	ASNELSON
Organization	Nelson Services, s.r.o. (org-nels1-ripe)
Country	SK
Website	nelson.sk
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2011-05-09

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
31.130.160.0/21	AS56747	Nelson Services, s.r.o.	Nelson Services, s.r.o.	2048

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 'AS56444 - AS56807'

as-block:       AS56444 - AS56807
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:        2024-12-10T14:53:42Z
last-modified:  2024-12-10T14:53:42Z
source:         RIPE

% Information related to 'AS56747'

% Abuse contact for 'AS56747' is 'abuse@nelson.sk'

aut-num:        AS56747
as-name:        ASNELSON
org:            ORG-NELS1-RIPE
import:         from AS15935 action pref=100; accept ANY
export:         to AS15935 announce AS56747
admin-c:        DSLC1-RIPE
tech-c:         DSHM2-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         NELSONSK-MNT
created:        2011-05-09T10:23:24Z
last-modified:  2026-08-27T12:33:21Z
source:         RIPE
sponsoring-org: ORG-DDS1-RIPE

organisation:   ORG-NELS1-RIPE
org-name:       Nelson Services, s.r.o.
country:        SK
reg-nr:         36 361 585
org-type:       OTHER
address:        013 13, Konska 338, Kamenna Poruba, okres Zilina, Slovenska Republika
abuse-c:        AR19488-RIPE
mnt-ref:        NELSONSK-MNT
mnt-by:         NELSONSK-MNT
created:        2011-05-04T18:02:08Z
last-modified:  2026-05-13T06:31:01Z
source:         RIPE # Filtered

role:           DSi DATA Hostmaster Contacts
address:        DSI DATA, a. s.
address:        Nam. A. Bernolaka 377
address:        Namestovo
address:        02901
address:        Slovak Republic
phone:          +421 43 238 8010
fax-no:         +421 43 238 8011
admin-c:        MM4633-RIPE
admin-c:        DR352-RIPE
admin-c:        LJ671-RIPE
tech-c:         MM4633-RIPE
tech-c:         PB17322-RIPE
nic-hdl:        DSHM2-RIPE
mnt-by:         DSIDATA-MNT
created:        2013-12-03T13:12:02Z
last-modified:  2019-01-02T14:52:47Z
source:         RIPE # Filtered

role:           DSi DATA LIR Contacts
address:        DSI DATA, a. s.
address:        Nam. A. Bernolaka 377
address:        Namestovo
address:        02901
address:        Slovak Republic
phone:          +421 43 238 8010
fax-no:         +421 43 238 8011
org:            ORG-Dds1-RIPE
admin-c:        MM4633-RIPE
admin-c:        LJ671-RIPE
admin-c:        DR352-RIPE
nic-hdl:        DSLC1-RIPE
abuse-mailbox:  abuse@dsidata.sk
mnt-by:         DSIDATA-MNT
created:        2013-11-28T10:58:31Z
last-modified:  2019-01-02T14:53:00Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS56444 - AS56807",
    "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" : "2024-12-10",
    "date_updated" : "2024-12-10",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS56747",
    "as_name" : "ASNELSON",
    "status" : "ASSIGNED",
    "import" : [ "from AS15935 action pref=100; accept ANY" ],
    "export" : [ "to AS15935 announce AS56747" ],
    "organization" : "ORG-NELS1-RIPE",
    "sponsoring_organization" : "ORG-DDS1-RIPE",
    "admin_contacts" : [ "DSLC1-RIPE" ],
    "tech_contacts" : [ "DSHM2-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "NELSONSK-MNT" ],
    "date_created" : "2011-05-09",
    "date_updated" : "2026-08-27",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-NELS1-RIPE",
    "name" : "Nelson Services, s.r.o.",
    "type" : "OTHER",
    "address" : [ "013 13, Konska 338, Kamenna Poruba, okres Zilina, Slovenska Republika" ],
    "street" : "Konska",
    "city" : "Kamenna Poruba",
    "district" : "Okres Zilina",
    "zip_code" : "013 13",
    "country" : [ "SK" ],
    "abuse_contacts" : [ "AR19488-RIPE" ],
    "mnt_ref" : [ "NELSONSK-MNT" ],
    "mnt_by" : [ "NELSONSK-MNT" ],
    "date_created" : "2011-05-04",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "SLOVENSKA REPUBLIKA"
  },
  "administrative_contacts" : [ {
    "handle" : "DSLC1-RIPE",
    "name" : "DSi DATA LIR Contacts",
    "address" : [ "DSI DATA, a. s.", "Nam. A. Bernolaka 377", "Namestovo", "02901", "Slovak Republic" ],
    "street" : "Nam. A. Bernolaka",
    "city" : "Namestovo",
    "zip_code" : "02901",
    "country" : "SLOVAK REPUBLIC",
    "abuse_mailbox" : [ "abuse@dsidata.sk" ],
    "phone" : [ "+421 43 238 8010" ],
    "fax_no" : [ "+421 43 238 8011" ],
    "organizations" : [ "ORG-Dds1-RIPE" ],
    "admin_contacts" : [ "MM4633-RIPE", "LJ671-RIPE", "DR352-RIPE" ],
    "mnt_by" : [ "DSIDATA-MNT" ],
    "date_created" : "2013-11-28",
    "date_updated" : "2019-01-02",
    "source" : "RIPE",
    "addressCountry" : "SLOVAK REPUBLIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "DSHM2-RIPE",
    "name" : "DSi DATA Hostmaster Contacts",
    "address" : [ "DSI DATA, a. s.", "Nam. A. Bernolaka 377", "Namestovo", "02901", "Slovak Republic" ],
    "street" : "Nam. A. Bernolaka",
    "city" : "Namestovo",
    "zip_code" : "02901",
    "country" : "SLOVAK REPUBLIC",
    "phone" : [ "+421 43 238 8010" ],
    "fax_no" : [ "+421 43 238 8011" ],
    "admin_contacts" : [ "MM4633-RIPE", "DR352-RIPE", "LJ671-RIPE" ],
    "tech_contacts" : [ "MM4633-RIPE", "PB17322-RIPE" ],
    "mnt_by" : [ "DSIDATA-MNT" ],
    "date_created" : "2013-12-03",
    "date_updated" : "2019-01-02",
    "source" : "RIPE",
    "addressCountry" : "SLOVAK REPUBLIC"
  } ]
}

Peers

AS Number	Description	Country
AS15935	ha-vel internet s.r.o.	CZ
AS15935	ha vel internet s.r.o.	CZ

Upstreams

AS Number	Description	Country
AS15935	ha vel internet s.r.o.	CZ