ASN AS21019 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21019?

AS21019 is listed under S.A. spol. 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.

AS21019 S.A. spol. s r.o. | IPGeolocation.io

ASN Lookup Tool

S.A. spol. s r.o. sasro.sk

SK 1 Routes

AS Data

AS21019

AS21019 – S.A. spol. s r.o.

AS Number	21019
AS Name	SASRO-SK-AS
Organization	S.A. spol. s r.o. (org-sn9-ripe)
Country	SK
Website	sasro.sk
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	1970-01-01

ASN Intelligence API for production workflows

Use ASN data for AS21019 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
80.81.224.0/20	AS21019	S.A. spol. s r.o.	S.A. s.r.o	4096

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 'AS21004 - AS21151'

as-block:       AS21004 - AS21151
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:        2018-11-22T15:27:27Z
last-modified:  2018-11-22T15:27:27Z
source:         RIPE

% Information related to 'AS21019'

% Abuse contact for 'AS21019' is 'lir@sasro.sk'

aut-num:        AS21019
as-name:        SASRO-SK-AS
descr:          Bratislava, Slovakia
org:            ORG-SN9-RIPE
import:         from AS5588 action pref=100; accept ANY
import:         from AS20996 action pref=100; accept ANY
export:         to AS5588 announce AS21019
export:         to AS20996 announce AS21019
admin-c:        IT87-RIPE
tech-c:         PR1597-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SA-NET-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2025-12-09T10:01:07Z
source:         RIPE

organisation:   ORG-SN9-RIPE
org-name:       S.A. spol. s r.o.
country:        SK
org-type:       LIR
address:        ?achtick� 13
address:        831 06
address:        Bratislava
address:        SLOVAKIA
phone:          +421244873371
fax-no:         +421244883369
abuse-c:        AR17293-RIPE
admin-c:        IT87-RIPE
admin-c:        MC1241-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SA-NET-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SA-NET-MNT
created:        2004-04-17T12:06:28Z
last-modified:  2025-12-09T10:01:08Z
source:         RIPE # Filtered

person:         Igor Trencansky
address:        S.A. s.r.o.
address:        Racianska 155
address:        83415 Bratislava
address:        Slovak Republic
phone:          +421-2-44873371
nic-hdl:        IT87-RIPE
mnt-by:         SA-NET-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T04:10:08Z
source:         RIPE # Filtered

person:         Pavol Rebros
address:        K.B.service & consulting s.r.o.
address:        Druzstevna 2
address:        83104 Bratislava
address:        Slovakia
phone:          +421-903-448013
nic-hdl:        PR1597-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2020-06-04T11:31:27Z
source:         RIPE # Filtered
mnt-by:         SA-NET-MNT

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS21004 - AS21151",
    "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" : "2018-11-22",
    "date_updated" : "2018-11-22",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS21019",
    "as_name" : "SASRO-SK-AS",
    "description" : [ "Bratislava, Slovakia" ],
    "status" : "ASSIGNED",
    "import" : [ "from AS5588 action pref=100; accept ANY", "from AS20996 action pref=100; accept ANY" ],
    "export" : [ "to AS5588 announce AS21019", "to AS20996 announce AS21019" ],
    "organization" : "ORG-SN9-RIPE",
    "admin_contacts" : [ "IT87-RIPE" ],
    "tech_contacts" : [ "PR1597-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "SA-NET-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2025-12-09",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-SN9-RIPE",
    "name" : "S.A. spol. s r.o.",
    "type" : "LIR",
    "address" : [ "?achtick? 13", "831 06", "Bratislava", "SLOVAKIA" ],
    "city" : "Bratislava",
    "zip_code" : "831 06",
    "country" : [ "SK" ],
    "phone" : [ "+421244873371" ],
    "fax_no" : [ "+421244883369" ],
    "admin_contacts" : [ "IT87-RIPE", "MC1241-RIPE" ],
    "abuse_contacts" : [ "AR17293-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "SA-NET-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "SA-NET-MNT" ],
    "date_created" : "2004-04-17",
    "date_updated" : "2025-12-09",
    "source" : "RIPE",
    "addressCountry" : "SLOVAKIA"
  },
  "administrative_contacts" : [ {
    "handle" : "IT87-RIPE",
    "name" : "Igor Trencansky",
    "address" : [ "S.A. s.r.o.", "Racianska 155", "83415 Bratislava", "Slovak Republic" ],
    "street" : "Racianska",
    "city" : "Bratislava",
    "zip_code" : "83415",
    "country" : "SLOVAK REPUBLIC",
    "phone" : [ "+421-2-44873371" ],
    "mnt_by" : [ "SA-NET-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2001-09-22",
    "source" : "RIPE",
    "addressCountry" : "SLOVAK REPUBLIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "PR1597-RIPE",
    "name" : "Pavol Rebros",
    "address" : [ "K.B.service & consulting s.r.o.", "Druzstevna 2", "83104 Bratislava", "Slovakia" ],
    "street" : "Druzstevna",
    "city" : "Bratislava",
    "zip_code" : "83104",
    "country" : "SLOVAKIA",
    "phone" : [ "+421-903-448013" ],
    "mnt_by" : [ "SA-NET-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2020-06-04",
    "source" : "RIPE",
    "addressCountry" : "SLOVAKIA"
  } ]
}

Peers

AS Number	Description	Country
AS3303	Swisscom (Schweiz) AG	CH
AS5578	SWAN, a.s.	SK
AS20996	RIPE Network Coordination Centre	NL
AS3303	Swisscom Schweiz AG	CH
AS5588	T Mobile Czech Republic a.s.	CZ

Upstreams

AS Number	Description	Country
AS5578	SWAN, a.s.	SK
AS3303	Swisscom Schweiz AG	CH