1. All IP Ranges
  2. 109.0.0.0/8
  3. 109.234.0.0/16
  4. AS57728  | 109.234.40.0/21

109.234.40.0/21

AS57728  ·  CEZNET s.r.o.

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Summary

Country Czechia
Domain ceznet.cz
ASN AS57728
Registry RIPE
ID CEZNET

WHOIS Details

inetnum:        109.234.40.0 - 109.234.46.255
netname:        CEZNET
descr:          CER
country:        CZ
admin-c:        CH13482-RIPE
tech-c:         CH13482-RIPE
status:         ASSIGNED PA
mnt-by:         CEZNET-MNT
created:        2018-03-23T08:53:07Z
last-modified:  2025-09-16T13:20:07Z
source:         RIPE
abuse-email:    dohled@ceznet.cz
abuse-c:        CH13482-RIPE
abuse-org:      ORG-TBS13-RIPE

role:           CEZNET hostmaster
address:        CEZNET s.r.o.
address:        Vilemovska 1602
address:        Tachov
address:        347 01
address:        The Czech Republic
e-mail:         dohled@ceznet.cz
abuse-mailbox:  dohled@ceznet.cz
phone:          +420 211 046 699
admin-c:        MV6352-RIPE
tech-c:         KD4331-RIPE
tech-c:         MJ83172-RIPE
nic-hdl:        CH13482-RIPE
mnt-by:         CEZNET-MNT
created:        2024-01-12T08:23:53Z
last-modified:  2024-01-12T08:25:01Z
source:         RIPE

route:          109.234.40.0/21
origin:         AS57728
descr:          CEZNET s.r.o.
descr:          CER
mnt-by:         CEZNET-MNT
created:        2020-04-09T07:52:36Z
last-modified:  2025-09-16T16:14:54Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 109.234.0.0/16

Range ASN Company Num of IPs
109.234.248.0/21 AS12676 dng IT GmbH & Co. KG 2,048
109.234.0.0/21 AS47820 CEGID S.A. 2,048
109.234.152.0/21 AS49505 JSC Selectel 2,048
109.234.136.0/21 AS34758 Axera SpA 2,048
109.234.48.0/21 AS50417 W Key srl 2,048
109.234.104.0/21 AS196763 Key-Systems GmbH 2,048
109.234.168.0/21 AS28863 Thales UK Limited 2,048
109.234.120.0/21 AS43503 2,048
109.234.64.0/21 AS15450 Alhambra Systems SA 2,048
109.234.56.0/21 AS43989 Ehinet Srl 2,048
109.234.128.0/21 AS50544 JSC ER-Telecom Holding 2,048
109.234.96.0/21 AS44212 Adelphi Net1 Ltd 2,048
109.234.176.0/21 AS60426 WightFibre Limited 2,048
109.234.240.0/21 AS719 Dustin Finland Oy 2,048
109.234.112.0/21 AS44327 DELTA COMM LLC 2,048
109.234.24.0/21 AS42526 COMPUTER COMMUNICATION SYSTEMS LLC 2,048
109.234.224.0/21 AS202038 Intercity Technology Ltd 2,048
109.234.236.0/22 AS50616 Albanian Mobile Communications 1,024
109.234.16.0/22 AS13035 IPT-NET 1,024
109.234.232.0/22 AS50616 Albanian Mobile Communications 1,024
109.234.164.0/22 AS50474 o2switch Datacenter Ip-Range-4 1,024
109.234.22.0/23 AS13035 IPTELECOM-NET 512
109.234.228.0/23 AS202038 Intercity Technology - Touch Technology - Bolton 512
109.234.226.0/23 AS202038 Intercity Technology - Touch Technology Elstree 512
109.234.20.0/23 AS13035 IP Telecom ltd. 512
109.234.168.0/24 AS28863 Thales UK Limited 256
109.234.169.0/24 AS28863 Thales UK Limited 256
109.234.175.0/24 AS28863 Thales UK Limited 256
109.234.221.0/24 AS2914 nocyo GmbH 256
109.234.220.0/24 AS2914 nocyo GmbH 256
109.234.192.0/24 AS31727 VIRTUAL DCS LTD 256
109.234.205.0/24 AS31727 Motorpoint Ltd 256
109.234.208.0/24 AS31898 Private Customer 256
109.234.9.0/24 AS39045 LLC Gazprom telecom 256
109.234.8.0/24 AS39045 LLC Gazprom telecom 256
109.234.15.0/24 AS39045 LLC Gazprom telecom 256
109.234.14.0/24 AS39045 Gazprom telecom LLC 256
109.234.73.0/24 AS39305 Groupe convergence.com SAS 256
109.234.74.0/24 AS396073 ROLANDAS USCILA 256
109.234.210.0/24 AS42831 Private Customer 256
109.234.214.0/24 AS43641 Private Customer 256
109.234.213.0/24 AS44213 Thaer A. T. Abuyousef trading as Abuyousef Co & Partners For General Trade 256
109.234.244.0/24 AS50377 Itaito Oy 256
109.234.191.0/24 AS50458 Nagarro ES GmbH 256
109.234.186.0/24 AS50458 Nagarro ES GmbH 256
109.234.189.0/24 AS50458 Nagarro ES GmbH 256
109.234.187.0/24 AS50458 Nagarro ES GmbH 256
109.234.185.0/24 AS50458 Nagarro ES GmbH 256
109.234.190.0/24 AS50458 Nagarro ES GmbH 256
109.234.188.0/24 AS50458 Nagarro ES GmbH 256

Hosted domains

There are 20 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
109.234.40.198 asrc.cz 11
109.234.40.246 labits.top 3
109.234.40.53 nasnas.cz 2
109.234.43.3 neurolytix.eu 1
109.234.43.34 gladkov.cz 1
109.234.40.82 stajner.cz 1
109.234.47.49 xn----7sbajbvldbo3cmdz8a3k.xn--p1ai 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

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

IP Address ASN Details
109.234.41.249 AS57728 CEZNET s.r.o. 1.91ms from Prague, CZ
109.234.40.241 AS57728 CEZNET s.r.o. 1.91ms from Prague, CZ
109.234.45.33 AS57728 CEZNET s.r.o. 1.98ms from Prague, CZ
109.234.46.1 AS57728 CEZNET s.r.o. 1.93ms from Prague, CZ
109.234.47.246 AS57728 CEZNET s.r.o. 1.79ms from Prague, CZ
109.234.44.41 AS57728 CEZNET s.r.o. 1.92ms from Prague, CZ
109.234.43.1 AS57728 CEZNET s.r.o. 4.20ms 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
105.109.121.149 AS36947 Telecom Algeria 13.77ms from Algiers, DZ
103.246.145.5 AS211381 Podaon SIA 0.44ms from Amsterdam, NL
62.149.156.37 AS31034 Aruba S.p.A. 0.26ms from Arezzo, IT
123.124.71.21 AS4808 China Unicom Beijing Province Network 3.83ms from Beijing, CN
52.89.133.245 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
167.179.180.133 AS4764 Aussie Broadband 0.74ms from Brisbane, AU
93.108.168.245 AS12353 Vodafone Portugal 6.90ms from Lisbon, PT
12.87.15.165 AS7018 AT&T Enterprises, LLC 1.20ms from Los Angeles, US
79.155.172.53 AS3352 TELEFONICA DE ESPANA S.A.U. 9.29ms from Madrid, ES
44.200.68.117 AS14618 Amazon.com, Inc. 0.37ms from Reston, US
106.255.139.69 AS3786 LG DACOM Corporation 2.05ms from Seoul, KR
103.131.14.181 AS9507 NextHop Pty Ltd 0.18ms from Sydney, AU
217.116.55.101 AS15493 Russian company LLC 5.00ms from Yekaterinburg, RU
196.61.39.213 AS37012 Comsys (GH) Limited 0.51ms from Accra, GH
93.114.78.69 AS6079 RCN 1.53ms from Ashburn, US
156.193.187.213 AS8452 TE-AS 5.63ms from Cairo, EG
74.132.107.101 AS10796 Charter Communications Inc 15.96ms from Columbus, US
16.65.66.37 AS8987 Amazon Data Services Ireland Ltd 1.05ms from Columbus, US
177.34.143.165 AS28573 Claro NXT Telecomunicacoes Ltda 15.05ms from Curitiba, BR
87.129.79.69 AS3320 Deutsche Telekom AG 0.70ms from Hamburg, DE
116.39.231.133 AS17858 LG POWERCOMM 1.35ms from Incheon, KR
178.255.180.21 AS6723 "AS6723" LIMITED LIABILITY COMPANY 0.14ms from Kyiv, UA
2.97.159.101 AS13285 TalkTalk Communications Limited 6.90ms from London, GB
79.44.72.149 AS3269 Telecom Italia S.p.A. 5.17ms from Milan, IT
77.108.73.21 AS8732 JSC Comcor 0.87ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 109.234.43.62
traceroute to 109.234.43.62 (109.234.43.62): 64 hops max, 52 byte packets
2 *
3 [] 91.210.16.186 1.241 ms
4 [AS39791] 89.111.69.1 0.541 ms
7 *
Measurement taken from IPinfo ProbeNet in Prague, CZ
On

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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