89.239.24.0/21

AS56821 · KnVnet services s.r.o.

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Summary

Country	Czechia
Domain	grepa.cz
ASN	AS56821
Parent Range	89.239.0.0/19
Registry	RIPE
ID	KNVN-NETRANGE

WHOIS Details

inetnum:        89.239.24.0 - 89.239.31.255
netname:        knvn-netrange
country:        CZ
admin-c:        TH6952-RIPE
tech-c:         TH6952-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-GREPA
created:        2018-09-18T08:42:07Z
last-modified:  2018-09-18T08:42:07Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        AR14419-RIPE
abuse-org:      ORG-GNS3-RIPE

person:         Tomas Havel
address:        Sidliste Hurka 1060 278 01, Kralupy nad Vltavou, CZ
phone:          +420-774-880884
nic-hdl:        TH6952-RIPE
e-mail:         [email protected]
mnt-by:         MNT-GREPA
created:        2018-09-14T08:37:44Z
last-modified:  2018-09-14T08:37:44Z
source:         RIPE

route:          89.239.24.0/21
origin:         AS56821
mnt-by:         MNT-GREPA
created:        2018-09-18T10:31:02Z
last-modified:  2018-09-18T10:31:02Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 89.239.24.0/21

Range	ASN	Company	Num of IPs
89.239.0.0/19	AS44489	GREPA Networks s.r.o.	8,192

Nearby Ranges

BGP prefixes that overlap with 89.239.0.0/16

Range	ASN	Company	Num of IPs
89.239.128.0/18	AS12389	PJSC Rostelecom	16,384
89.239.192.0/18	AS44869	FIBIA P/S	16,384
89.239.0.0/19	AS44489	GREPA Networks s.r.o.	8,192
89.239.32.0/20	AS12975	Hadara Technologies Private Shareholding Company	4,096
89.239.48.0/20	AS25853	Ellijay Telephone Company	4,096

Hosted domains

There are 10 domain names hosted across 9 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
89.239.31.24	therapharm.cz	2
89.239.31.199	monotea.cz	1
89.239.25.39	realitymapper.cz	1
89.239.31.40	als-euro.info	1
89.239.25.15	tomsik.net	1
89.239.30.3	kompaktus.com	1
89.239.24.16	tomhavel.com	1
89.239.30.49	frymburk24.cz	1
89.239.31.10	patos.cz	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

Read more

Pingable IPs

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

IP Address	ASN	Details
89.239.31.249	AS56821 KnVnet services s.r.o.	`1.64ms` from Prague, CZ
89.239.25.218	AS56821 KnVnet services s.r.o.	`2.11ms` from Prague, CZ
89.239.30.33	AS56821 KnVnet services s.r.o.	`1.62ms` from Prague, CZ
89.239.24.34	AS56821 KnVnet services s.r.o.	`1.36ms` from Prague, CZ

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
194.25.12.117	AS3320 Deutsche Telekom AG	`1.26ms` from Berlin, DE
35.165.216.197	AS16509 Amazon.com, Inc.	`0.10ms` from Boardman, US
50.127.186.5	AS5650 Frontier Communications of America, Inc.	`12.00ms` from Chicago, US
27.15.14.37	AS4837 CHINA UNICOM China169 Backbone	`4.96ms` from Chongqing, CN
52.213.27.181	AS16509 Amazon.com, Inc.	`0.31ms` from Dublin, IE
141.23.221.133	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`13.44ms` from Frankfurt am Main, DE
218.253.147.165	AS9381 HKBN Enterprise Solutions HK Limited	`0.66ms` from Hong Kong, HK
120.221.47.85	AS24444 Shandong Mobile Communication Company Limited	`3.94ms` from Jinan, CN
109.157.100.197	AS2856 British Telecommunications PLC	`1.53ms` from London, GB
34.197.21.181	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
89.193.237.149	AS8011 MongoDB, Inc.	`0.14ms` from Reston, US
204.13.68.53	AS23338 DCS Pacific Star, LLC	`5.18ms` from San Jose, US
189.188.183.53	AS8151 UNINET	`5.01ms` from Santiago de Queretaro, MX
112.148.171.197	AS17858 LG POWERCOMM	`1.82ms` from Seoul, KR
103.22.220.133	AS9270 National Infomation Society Agency	`3.62ms` from Seoul, KR
51.17.231.229	AS16509 Amazon.com, Inc.	`1.80ms` from Tel Aviv, IL
124.119.30.245	AS4134 CHINANET-BACKBONE	`1.05ms` from UEruemqi, CN
104.81.127.101	AS16625 Akamai Technologies, Inc.	`0.25ms` from Warsaw, PL
93.143.34.53	AS5391 Hrvatski Telekom d.d.	`12.53ms` from Zagreb, HR
128.109.251.165	AS81 MCNC	`7.42ms` from Ashburn, US
107.130.116.5	AS7018 AT&T Enterprises, LLC	`3.41ms` from Atlanta, US
78.99.236.165	AS6855 Slovak Telekom, a.s.	`7.36ms` from Bratislava, SK
45.12.40.101	AS197886 Flashnet Kft	`0.11ms` from Budapest, HU
197.55.255.181	AS8452 TE-AS	`7.48ms` from Cairo, EG
99.48.161.165	AS7018 AT&T Enterprises, LLC	`2.18ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -f3 89.239.31.246

traceroute to 89.239.31.246 (89.239.31.246): 64 hops max, 52 byte packets

3 [] 91.210.16.96 0.488 ms

4 [AS16019] 213.192.8.129 0.942 ms

5 [AS56821] 89.239.31.246 2.34 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On January 30th 2026

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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