5.104.16.0/21

AS198977 · UnArtel s.r.o.

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Summary

Country	Czechia
Domain	freetel.cz
ASN	AS198977
Registry	RIPE
ID	CZ-KLFREE-20120628

WHOIS Details

inetnum:        5.104.16.0 - 5.104.23.255
netname:        CZ-KLFREE-20120628
country:        CZ
org:            ORG-SK14-RIPE
admin-c:        NFX
tech-c:         NFX
status:         ALLOCATED PA
notify:         tech@nfx.cz
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CZNFX-MNT
mnt-routes:     CZNFX-MNT
created:        2012-06-28T09:56:48Z
last-modified:  2017-08-30T11:57:18Z
source:         RIPE
abuse-email:    abuse@nfx.cz
abuse-c:        NFXA-RIPE
abuse-org:      ORG-SK14-RIPE

organisation:   ORG-SK14-RIPE
org-name:       FreeTel, s.r.o.
country:        CZ
org-type:       LIR
address:        Luzna 716/2 Vokovice
address:        160 00
address:        PRAGUE
address:        CZECH REPUBLIC
phone:          +420776238360
e-mail:         info@nfx.cz
abuse-c:        NFXA-RIPE
admin-c:        SD3468-RIPE
admin-c:        MUKI
admin-c:        JS6461-RIPE
ref-nfy:        tech@nfx.cz
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CZNFX-MNT
notify:         tech@nfx.cz
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CZNFX-MNT
created:        2006-05-10T06:49:34Z
last-modified:  2024-10-12T13:51:56Z
source:         RIPE

role:           Neutral czFree eXchange
org:            ORG-SK14-RIPE
address:        Luzna 716/2,
address:        160 00 Praha 6
e-mail:         tech@nfx.cz
abuse-mailbox:  abuse@nfx.cz
admin-c:        SD3468-RIPE
admin-c:        MUKI
tech-c:         SD3468-RIPE
tech-c:         MUKI
nic-hdl:        NFX
mnt-by:         CZNFX-MNT
created:        2009-09-29T22:52:28Z
last-modified:  2022-04-22T21:33:04Z
source:         RIPE

route:          5.104.16.0/21
org:            ORG-UN12-RIPE
descr:          Unart/UnArtel route
origin:         AS198977
mnt-by:         CZNFX-MNT
created:        2012-07-05T14:08:14Z
last-modified:  2012-07-05T14:08:14Z
source:         RIPE

organisation:   ORG-UN12-RIPE
org-name:       UnArtel s.r.o.
country:        CZ
org-type:       OTHER
address:        Dlouha 300
address:        76321 Slavicin
address:        Czech Republic
admin-c:        PB10253-RIPE
e-mail:         ripe@unart.cz
abuse-c:        AUN12-RIPE
mnt-ref:        CZNFX-MNT
mnt-by:         CZNFX-MNT
created:        2009-09-22T15:59:34Z
last-modified:  2022-12-01T17:29:14Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 5.104.0.0/16

Range	ASN	Company	Num of IPs
5.104.32.0/19	AS59815	Kompeatelecom Ltd	8,192
5.104.112.0/20	AS57112	Fiber Services B.V.	4,096
5.104.32.0/20	AS59815	Kompeatelecom Ltd	4,096
5.104.48.0/20	AS59815	Kompeatelecom Ltd	4,096
5.104.0.0/20	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	4,096
5.104.88.0/21	AS51873	Arcade Solutions AG	2,048
5.104.144.0/21	AS21263	Stadtwerke Engen GmbH	2,048
5.104.104.0/21	AS24961	WIIT AG	2,048
5.104.208.0/21	AS58224	Iran Telecommunication Company PJS	2,048
5.104.248.0/21	AS58321	Oxylion Sp. z o.o.	2,048
5.104.160.0/21	AS34376	Telecom Group BLG	2,048
5.104.192.0/21	AS34659	Keyyo SA	2,048
5.104.216.0/21	AS28760	Infotech EDV-Systeme GmbH	2,048
5.104.232.0/21	AS9198	JSC Kazakhtelecom	2,048
5.104.96.0/21	AS50624	Outscale SASU	2,048
5.104.80.0/22	AS141995	Contabo GmbH	1,024
5.104.84.0/22	AS141995	Contabo GmbH	1,024
5.104.156.0/23	AS206970	Avira Holding GmbH	512
5.104.168.0/23	AS57344	SisleyBuild Ltd.	512
5.104.200.0/23	AS50498	JSC ER-Telecom Holding Lipetsk branch	512
5.104.232.0/23	AS9198	JSC Kazakhtelecom	512
5.104.238.0/23	AS9198	JSC Kazakhtelecom	512
5.104.167.0/24	AS34376	Telecom Group Ltd.	256
5.104.199.0/24	AS34659	KEYYO MPLS Customers	256
5.104.136.0/24	AS43350	Globalswitch Peering	256
5.104.137.0/24	AS43350	Equinix AM7 peering	256
5.104.138.0/24	AS43350	Equinix AM5 peering	256
5.104.139.0/24	AS43350	Databarn Amsterdam Peering	256
5.104.0.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.10.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.1.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.11.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.12.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.13.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.14.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.15.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.3.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.76.0/24	AS131199	Packethub S.A.	256
5.104.6.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.7.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.8.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.9.0/24	AS47883	KIBRIS MOBILE TELEKOMUNIKASYON LTD.	256
5.104.24.0/24	AS48815	Backbone and Services for Alexa Technology ISP based in Novara (IT)	256
5.104.170.0/24	AS49699	ICN Ltd.	256
5.104.171.0/24	AS49699	ICN Ltd.	256
5.104.172.0/24	AS49699	ICN Ltd.	256
5.104.173.0/24	AS49699	ICN Ltd.	256
5.104.204.0/24	AS50498	JSC ER-Telecom Holding Lipetsk branch	256
5.104.174.0/24	AS57344	DobrudjaCable Ltd.	256

Hosted domains

There are 83 domain names hosted across 29 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
5.104.16.163	dokampaku.cz	19
5.104.16.187	pivnice-umice.cz	10
5.104.16.166	hospudkanarynku.cz	6
5.104.16.236	jzdpromotion.cz	5
5.104.16.168	slfree.eu	5
5.104.16.110	pomykal.eu	5
5.104.16.184	sksnipers.cz	5
5.104.16.231	slavicin.org	4
5.104.16.243	raskovi.net	3
5.104.16.233	fallafell.cz	2
5.104.18.119	hostetin.org	2
5.104.16.226	e-vany.cz	2
5.104.16.185	zkusucit.cz	1
5.104.17.23	carmechiehall.cz	1
5.104.22.85	etronnet.cz	1
5.104.17.120	ptackovi14.cz	1
5.104.17.122	miskarikovi.cz	1
5.104.23.142	etronnet.cz	1
5.104.22.230	mu-vk.cz	1
5.104.16.232	zspraktslav.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

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

IP Address	ASN	Details
5.104.18.23	AS198977 UnArtel s.r.o.	`7.17ms` from Prague, CZ
5.104.22.87	AS198977 UnArtel s.r.o.	`6.65ms` from Prague, CZ
5.104.16.26	AS198977 UnArtel s.r.o.	`7.08ms` from Prague, CZ
5.104.23.81	AS198977 UnArtel s.r.o.	`6.64ms` from Prague, CZ
5.104.17.177	AS198977 UnArtel s.r.o.	`7.12ms` 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
20.82.108.21	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
89.192.159.101	AS8011 MongoDB, Inc.	`0.46ms` from Ashburn, US
98.62.177.229	AS7922 Comcast Cable Communications, LLC	`5.15ms` from Atlanta, US
44.227.241.69	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
57.150.250.229	AS8075 Microsoft Corporation	`0.49ms` from Boydton, US
172.72.180.117	AS11426 Charter Communications Inc	`6.08ms` from Charlotte, US
50.65.137.229	AS6327 Shaw Communications	`6.39ms` from Edmonton, CA
79.207.155.245	AS3320 Deutsche Telekom AG	`4.16ms` from Hamburg, DE
24.160.27.85	AS11427 Charter Communications Inc	`9.14ms` from Houston, US
104.53.125.69	AS7018 AT&T Enterprises, LLC	`4.72ms` from Houston, US
178.122.180.21	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`7.30ms` from Minsk, BY
186.230.40.245	AS26615 TIM S/A	`5.51ms` from Osasco, BR
52.156.105.213	AS8075 Microsoft Corporation	`0.34ms` from Quincy, US
188.129.20.69	AS29485 A1 Hrvatska d.o.o.	`1.05ms` from Zagreb, HR
157.143.5.101	AS8758 Iway AG	`1.06ms` from Zuerich, CH
178.231.49.133	AS31615 Odido Netherlands B.V.	`15.38ms` from Amsterdam, NL
18.207.234.197	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
35.172.82.197	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
35.186.170.165	AS396982 Google LLC	`0.13ms` from Ashburn, US
43.229.148.21	AS56309 Siamdata Communication Co.,Ltd.	`0.48ms` from Bangkok, TH
52.32.52.245	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
34.66.20.101	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
84.128.43.181	AS3320 Deutsche Telekom AG	`5.28ms` from Frankfurt am Main, DE
130.83.149.229	AS8365 Man-da.de GmbH	`1.56ms` from Frankfurt am Main, DE
70.112.120.69	AS11427 Charter Communications Inc	`10.49ms` from Houston, US

Traceroute

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

traceroute -a -n -q1 -f2 5.104.16.141

traceroute to 5.104.16.141 (5.104.16.141): 64 hops max, 52 byte packets

2 [AS15169] 192.178.252.170 258.898 ms

3 *

4 *

5 *

6 [AS198977] 5.104.16.141 418.008 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On March 13th 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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