ASN AS21111 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21111?

AS21111 is listed under Ministerstwo Rozwoju i Technologii.

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.

AS21111 Ministerstwo Rozwoju i Technologii

ASN Lookup Tool

Ministerstwo Rozwoju i Technologii mrit.gov.pl

PL 5 Routes

AS Data

AS21111

AS21111 – Ministerstwo Rozwoju i Technologii

AS Number	21111
AS Name	CISG
Organization	Ministerstwo Rozwoju i Technologii (org-mrit2-ripe)
Country	PL
Website	mrit.gov.pl
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	1970-01-01

ASN Intelligence API for production workflows

Use ASN data for AS21111 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
158.66.6.0/24	AS21111	Ministerstwo Rozwoju i Technologii	Ministerstwo Rozwoju i Technologii	256
158.66.7.0/24	AS21111	Ministerstwo Rozwoju i Technologii	Ministerstwo Rozwoju i Technologii	256
158.66.1.0/24	AS21111	Ministerstwo Rozwoju i Technologii	Ministerstwo Rozwoju i Technologii	256
158.66.2.0/24	AS21111	Ministerstwo Rozwoju i Technologii	Ministerstwo Rozwoju i Technologii	256
158.66.0.0/16	AS21111	Ministerstwo Rozwoju i Technologii	Ministerstwo Rozwoju i Technologii	65536

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 'AS21111'

% Abuse contact for 'AS21111' is 'netadmin@mrit.gov.pl'

aut-num:        AS21111
as-name:        CISG
org:            ORG-MRIT2-RIPE
descr:          Deprtament Gospodarki Cyfrowej Ministerstwa Rozwoju i Technologii
descr:          Poland Warsaw 00-507
descr:          Plac Trzech Krzyzy 3_5
import:         from AS8308 action pref=50; accept ANY
import:         from AS8798 action pref=100; accept ANY
export:         to AS8308 announce AS21111
export:         to AS8798 announce AS21111
admin-c:        BC1003-RIPE
tech-c:         WS1004-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CIGMG-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2025-11-20T13:03:52Z
source:         RIPE
sponsoring-org: ORG-NRaA1-RIPE

organisation:   ORG-MRIT2-RIPE
org-name:       Ministerstwo Rozwoju i Technologii
country:        PL
org-type:       OTHER
address:        Pl. Trzech Krzyzy 3/5
address:        00-507 Warszawa
address:        Poland
abuse-c:        ACRO52845-RIPE
mnt-ref:        NASK-MNT
mnt-by:         NASK-MNT
created:        2023-05-19T07:52:14Z
last-modified:  2023-07-26T08:43:18Z
source:         RIPE # Filtered

person:         Bogdan Czekalski
address:        ul. Zurawia 4a
address:        00-503 Warszawa
address:        Poland
phone:          +48 501 124234
fax-no:         +48 22 6935406
nic-hdl:        BC1003-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2016-04-05T17:14:21Z
mnt-by:         RIPE-NCC-LOCKED-MNT
source:         RIPE # Filtered

person:         Wojciech Sliwinski
address:        Centrum Informacji Spoleczno-Gospodarczej
address:        Ministerstwa Gospodarki, Pracy i Polityki Spolecznej
address:        ul. Zurawia 4a
address:        00-503 Warszawa
phone:          +48 602749542
fax-no:         +48 22 6217508
nic-hdl:        WS1004-RIPE
mnt-by:         CIGMG-MNT
created:        2004-05-12T10:23:01Z
last-modified:  2004-05-13T10:45:16Z
source:         RIPE # Filtered

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

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" : "AS21111",
    "as_name" : "CISG",
    "description" : [ "Deprtament Gospodarki Cyfrowej Ministerstwa Rozwoju i Technologii", "Poland Warsaw 00-507", "Plac Trzech Krzyzy 3_5" ],
    "status" : "ASSIGNED",
    "import" : [ "from AS8308 action pref=50; accept ANY", "from AS8798 action pref=100; accept ANY" ],
    "export" : [ "to AS8308 announce AS21111", "to AS8798 announce AS21111" ],
    "organization" : "ORG-MRIT2-RIPE",
    "sponsoring_organization" : "ORG-NRaA1-RIPE",
    "admin_contacts" : [ "BC1003-RIPE" ],
    "tech_contacts" : [ "WS1004-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "CIGMG-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2025-11-20",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-MRIT2-RIPE",
    "name" : "Ministerstwo Rozwoju i Technologii",
    "type" : "OTHER",
    "address" : [ "Pl. Trzech Krzyzy 3/5", "00-507 Warszawa", "Poland" ],
    "street" : "Pl. Trzech Krzyzy",
    "city" : "Warszawa",
    "zip_code" : "00-507",
    "country" : [ "PL" ],
    "abuse_contacts" : [ "ACRO52845-RIPE" ],
    "mnt_ref" : [ "NASK-MNT" ],
    "mnt_by" : [ "NASK-MNT" ],
    "date_created" : "2023-05-19",
    "date_updated" : "2023-07-26",
    "source" : "RIPE",
    "addressCountry" : "POLAND"
  },
  "administrative_contacts" : [ {
    "handle" : "BC1003-RIPE",
    "name" : "Bogdan Czekalski",
    "address" : [ "ul. Zurawia 4a", "00-503 Warszawa", "Poland" ],
    "street" : "Ul. Zurawia",
    "city" : "Warszawa",
    "zip_code" : "00-503",
    "country" : "POLAND",
    "phone" : [ "+48 501 124234" ],
    "fax_no" : [ "+48 22 6935406" ],
    "mnt_by" : [ "RIPE-NCC-LOCKED-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2016-04-05",
    "source" : "RIPE",
    "addressCountry" : "POLAND"
  } ],
  "technical_contacts" : [ {
    "handle" : "WS1004-RIPE",
    "name" : "Wojciech Sliwinski",
    "address" : [ "Centrum Informacji Spoleczno-Gospodarczej", "Ministerstwa Gospodarki, Pracy i Polityki Spolecznej", "ul. Zurawia 4a", "00-503 Warszawa" ],
    "street" : "Ul. Zurawia",
    "city" : "Warszawa",
    "zip_code" : "00-503",
    "phone" : [ "+48 602749542" ],
    "fax_no" : [ "+48 22 6217508" ],
    "mnt_by" : [ "CIGMG-MNT" ],
    "date_created" : "2004-05-12",
    "date_updated" : "2004-05-13",
    "source" : "RIPE"
  } ]
}

Peers

AS Number	Description	Country
AS12912	T Mobile Polska S.A.	PL
AS8798	Powszechna Agencja Informacyjna S.A.	PL
AS50606	Horyzont Technologie Internetowe sp.z.o.o.	PL
AS8308	NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA PANSTWOWY INSTYTUT BADAWCZY	PL
AS12912	T-Mobile Polska S.A.	PL

Upstreams

AS Number	Description	Country
AS12912	T Mobile Polska S.A.	PL
AS50606	Horyzont Technologie Internetowe sp.z.o.o.	PL