178.17.96.0/20

AS16246 · O2 Czech Republic, a.s.

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS16246
Registry	RIPE
ID	CZ-CZNET-20100318

WHOIS Details

inetnum:        178.17.80.0 - 178.17.111.255
netname:        CZ-CZNET-20100318
org:            ORG-STaN1-RIPE
country:        CZ
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2025-04-01T07:33:38Z
last-modified:  2025-04-01T07:33:38Z
source:         RIPE
abuse-email:    abuse@o2.cz
abuse-c:        AR14410-RIPE
abuse-org:      ORG-STaN1-RIPE

organisation:   ORG-STaN1-RIPE
org-name:       O2 Czech Republic, a.s.
country:        CZ
org-type:       LIR
address:        Za Brumlovkou 266/2
address:        140 22
address:        Praha 4 - Michle
address:        CZECH REPUBLIC
phone:          +420 2 71466184
fax-no:         +420 2 71464414
e-mail:         marek.vogel@o2.cz
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         CZO2-RIPE
abuse-c:        AR14410-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        AS5610-MTN
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2004-04-17T11:04:17Z
last-modified:  2020-12-16T12:31:56Z
source:         RIPE
abuse-email:    abuse@o2.cz
abuse-c:        AR14410-RIPE
abuse-org:      undefined

role:           5610-Tech-and-Admin
address:        Za Brumlovkou 266/2
address:        Praha 4 - Michle, PSC 140 22
e-mail:         router@o2.cz
nic-hdl:        CZO2-RIPE
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         VAKO1-RIPE
tech-c:         HVJI1-RIPE
abuse-mailbox:  abuse@o2.cz
org:            ORG-STaN1-RIPE
mnt-by:         AS5610-MTN
created:        2016-02-18T09:58:30Z
last-modified:  2018-04-20T10:44:21Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 178.17.0.0/16

Range	ASN	Company	Num of IPs
178.17.112.0/20	AS1886	BT NET d.o.o. za trgovinu i usluge	4,096
178.17.224.0/20	AS200519	German fiberONE customers (fiberone.de)	4,096
178.17.192.0/20	AS213572	TSI Service JSC	4,096
178.17.144.0/20	AS25400	Telia Norge AS	4,096
178.17.32.0/20	AS31463	Redcentric Solutions Ltd	4,096
178.17.128.0/20	AS42514	Signal Service LLC	4,096
178.17.160.0/20	AS43289	Trabia	4,096
178.17.240.0/20	AS49375	No One Internet Ltd	4,096
178.17.0.0/20	AS50825	UVT Internet s.r.o.	4,096
178.17.212.0/22	AS212694	Applied Satellite Technology Ltd	1,024
178.17.232.0/22	AS200519	German fiberONE customers (fiberone.de)	1,024
178.17.112.0/22	AS1886	BTnet d.o.o.	1,024
178.17.116.0/22	AS1886	BTnet d.o.o	1,024
178.17.208.0/22	AS210279	DIGITAL MEDIA TECHNOLOGIES LTD	1,024
178.17.236.0/23	AS200519	German fiberONE customers (fiberone.de)	512
178.17.51.0/24	AS213887	WAIcore Ltd	256
178.17.52.0/24	AS213887	WAIcore Ltd	256
178.17.60.0/24	AS213887	WAIcore Ltd	256
178.17.61.0/24	AS213887	WAIcore Ltd	256
178.17.56.0/24	AS214624	Rakhimov Sukhrob Ilkhomovich	256
178.17.53.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
178.17.57.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
178.17.58.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
178.17.62.0/24	AS215826	Partner Hosting LTD	256
178.17.36.0/24	AS31463	Nexcess - 4D Sirius II	256
178.17.218.0/24	AS207311	Centrum Medyczne Luxmed Sp. z o.o.	256
178.17.63.0/24	AS209186	Hostline.cloud	256
178.17.216.0/24	AS210085	Rzeszowska Agencja Rozwoju Regionalnego S.A.	256
178.17.39.0/24	AS31463	Nexcess - 4D Sirius II	256
178.17.59.0/24	AS213702	QWINS Hosting	256
178.17.48.0/24	AS213887	WAIcore Ltd	256
178.17.49.0/24	AS213887	WAIcore Ltd	256
178.17.50.0/24	AS213887	WAIcore Ltd	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
178.17.100.200	ispjb.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

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

IP Address	ASN	Details
178.17.99.81	AS16246 O2 Czech Republic, a.s.	`6.16ms` from Prague, CZ
178.17.105.97	AS16246 O2 Czech Republic, a.s.	`6.20ms` from Prague, CZ
178.17.96.33	AS16246 O2 Czech Republic, a.s.	`6.19ms` from Prague, CZ
178.17.101.193	AS16246 O2 Czech Republic, a.s.	`6.19ms` from Prague, CZ
178.17.98.193	AS16246 O2 Czech Republic, a.s.	`6.17ms` from Prague, CZ
178.17.103.225	AS16246 O2 Czech Republic, a.s.	`6.19ms` from Prague, CZ
178.17.100.129	AS16246 O2 Czech Republic, a.s.	`6.18ms` from Prague, CZ
178.17.111.101	AS16246 O2 Czech Republic, a.s.	`6.17ms` from Prague, CZ
178.17.104.1	AS16246 O2 Czech Republic, a.s.	`6.20ms` 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
122.58.6.180	AS4771 Spark New Zealand Trading Ltd.	`1.06ms` from Auckland, NZ
113.21.240.52	AS38082 True International Gateway Co., Ltd.	`0.34ms` from Bangkok, TH
66.116.18.116	AS5742 Fidium	`4.32ms` from Chicago, US
46.235.40.20	AS213192 NetBase BV	`3.13ms` from Dronten, NL
54.229.100.148	AS16509 Amazon.com, Inc.	`0.22ms` from Dublin, IE
113.175.191.52	AS45899 VNPT Corp	`4.97ms` from Hanoi, VN
221.167.54.84	AS4766 Korea Telecom	`8.14ms` from Incheon, KR
1.254.77.84	AS9318 SK Broadband Co Ltd	`7.53ms` from Incheon, KR
90.213.134.244	AS5607 Sky UK Limited	`5.48ms` from London, GB
134.195.26.36	AS396982 Google LLC	`0.08ms` from Melbourne, AU
31.177.115.148	AS44512 KONVERTO SPA	`5.19ms` from Milan, IT
3.225.23.20	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
186.108.246.116	AS7303 Telecom Argentina S.A.	`6.52ms` from Rosario, AR
118.39.217.212	AS4766 Korea Telecom	`9.54ms` from Seoul, KR
153.210.103.180	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.11ms` from Tokyo, JP
130.63.141.212	AS802 York University	`1.18ms` from Toronto, CA
195.248.90.68	AS22773 Cox Communications Inc.	`2.14ms` from Ashburn, US
44.238.70.164	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
20.141.32.68	AS8070 Microsoft Corporation	`0.59ms` from Boydton, US
83.134.204.180	AS5432 Proximus NV	`3.23ms` from Brussels, BE
196.118.178.4	AS36925 MEDITELECOM	`5.22ms` from Casablanca, MA
142.204.191.244	AS393238 ImOn Communications, LLC	`6.26ms` from Chicago, US
34.45.151.36	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
99.24.140.68	AS7018 AT&T Enterprises, LLC	`2.48ms` from Dallas, US
85.115.12.84	AS12843 TelemaxX Telekommunikation GmbH	`2.06ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f4 178.17.96.33

traceroute to 178.17.96.33 (178.17.96.33): 64 hops max, 52 byte packets

4 [AS5394] 213.233.30.70 10.302 ms

5 *

6 *

7 [AS5610] 90.182.199.221 26.183 ms

8 *

9 *

10 [AS41046] 81.200.48.214 26.047 ms

11 *

12 [AS16246] 178.17.96.33 31.5 ms

Measurement taken from

IPinfo ProbeNet in Rome, IT

On January 19th 2026

What are IP address ranges?

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