91.189.56.0/21

AS42402 · RiZ Computers s.c.

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Summary

Country	Poland
Domain	riz.pl
ASN	AS42402
Registry	RIPE
ID	RIZNET

WHOIS Details

inetnum:        91.189.56.0 - 91.189.63.255
netname:        RIZNET
country:        PL
org:            ORG-RIZ1-RIPE
admin-c:        BZ895-RIPE
tech-c:         BZ895-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         RIZNET-MNT
mnt-routes:     RIZNET-MNT
mnt-domains:    RIZNET-MNT
remarks:        for abuse, spam and related complaints: abuse@riz.pl
created:        2007-01-11T11:16:00Z
last-modified:  2016-04-14T10:50:36Z
source:         RIPE
sponsoring-org: ORG-ITP1-RIPE
abuse-email:    abuse@riz.pl
abuse-c:        AR20381-RIPE
abuse-org:      ORG-ITP1-RIPE

organisation:   ORG-RIZ1-RIPE
org-name:       RiZ Computers s.c.
country:        PL
org-type:       OTHER
address:        03-984, Warsaw, Poland
address:        Uminskiego 5/95
e-mail:         riz@riz.pl
abuse-c:        AR20381-RIPE
mnt-ref:        RIZNET-MNT
mnt-by:         RIZNET-MNT
notify:         ripe@riz.pl
created:        2006-12-17T17:26:36Z
last-modified:  2022-12-01T16:45:19Z
source:         RIPE

person:         Bartlomiej Zarzecki
e-mail:         bz@riz.pl
org:            ORG-RIZ1-RIPE
address:        Poland
mnt-by:         RIZNET-MNT
phone:          +48 501 729 939
nic-hdl:        BZ895-RIPE
notify:         bz@riz.pl
created:        2002-08-12T09:33:02Z
last-modified:  2022-10-07T13:48:31Z
source:         RIPE

route:          91.189.56.0/21
descr:          RiZNet PI address space.
origin:         AS42402
mnt-by:         RIZNET-MNT
created:        2009-05-22T18:15:54Z
last-modified:  2009-05-22T18:15:54Z
source:         RIPE

Hosted domains

There are 53 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
91.189.57.128	x-disc.com	39
91.189.57.130	xdiscgroup.com.pl	11
91.189.57.45	sofor.pl	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

188 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
91.189.57.173	AS42402 RiZ Computers s.c.	`0.40ms` from Warsaw, PL
91.189.63.249	AS42199 RiZ Computers s.c.	`1.48ms` from Warsaw, PL
91.189.59.193	AS42402 RiZ Computers s.c.	`0.74ms` from Warsaw, PL
91.189.56.24	AS42402 RiZ Computers s.c.	`0.35ms` from Warsaw, PL
91.189.62.233	AS42402 RiZ Computers s.c.	`0.88ms` from Warsaw, PL
91.189.60.49	AS42402 RiZ Computers s.c.	`5.22ms` from Warsaw, PL
91.189.61.201	AS42402 RiZ Computers s.c.	`0.78ms` from Warsaw, PL
91.189.58.140	AS42402 RiZ Computers s.c.	`1.25ms` from Warsaw, PL

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
61.51.175.5	AS4808 China Unicom Beijing Province Network	`2.40ms` from Beijing, CN
73.227.249.133	AS7922 Comcast Cable Communications, LLC	`12.18ms` from Boston, US
24.109.2.197	AS6327 Shaw Communications Inc.	`6.95ms` from Calgary, CA
20.54.54.229	AS8075 Microsoft Corporation	`0.25ms` from Dublin, IE
170.239.146.117	AS266361 JARBAS PASCHOAL BRAZIL JUNIOR INFORMATICA	`10.39ms` from Fortaleza, BR
62.113.212.85	AS47447 23M GmbH	`0.17ms` from Frankfurt am Main, DE
178.33.117.229	AS16276 OVH SAS	`0.06ms` from Gravelines, FR
183.144.232.213	AS4134 CHINANET-BACKBONE	`7.24ms` from Hangzhou, CN
72.8.91.181	AS15108 Allo Communications LLC	`9.63ms` from Kansas City, US
216.230.21.5	AS397129 LifeScan Global Corporation	`16.69ms` from London, GB
98.152.151.21	AS20001 Charter Communications Inc	`2.82ms` from Los Angeles, US
51.250.20.181	AS200350 Yandex.Cloud LLC	`3.22ms` from Moscow, RU
80.13.70.149	AS3215 Orange S.A.	`1.75ms` from Paris, FR
174.72.12.69	AS22773 Cox Communications Inc.	`1.80ms` from Phoenix, US
82.193.67.5	AS24651 JSC BALTICOM	`0.46ms` from Riga, LV
95.213.166.133	AS49505 JSC Selectel	`1.06ms` from Saint Petersburg, RU
191.19.132.85	AS27699 TELEFÔNICA BRASIL S.A	`1.75ms` from Sao Paulo, BR
177.140.254.21	AS28573 Claro NXT Telecomunicacoes Ltda	`5.40ms` from Sao Paulo, BR
75.157.105.85	AS852 TELUS Communications Inc.	`8.55ms` from Seattle, US
14.200.35.133	AS7545 TPG Telecom Limited	`0.28ms` from Sydney, AU
121.25.22.149	AS4837 CHINA UNICOM China169 Backbone	`7.30ms` from Tianjin, CN
60.144.28.5	AS17676 SoftBank Corp.	`2.77ms` from Tokyo, JP
61.183.250.53	AS4134 CHINANET-BACKBONE	`2.51ms` from Wuhan, CN
81.204.13.149	AS1136 KPN B.V.	`2.21ms` from Amsterdam, NL
181.126.248.197	AS23201 Telecel S.A.	`10.04ms` from Asuncion, PY

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 91.189.61.1

traceroute to 91.189.61.1 (91.189.61.1): 64 hops max, 52 byte packets

1 [AS15169] 142.250.62.55 0.687 ms

2 [AS42402] 91.189.56.24 0.798 ms

3 [AS42402] 91.189.61.1 1.432 ms

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On September 11th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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