217.75.208.0/20

AS210712 · ISP Alliance a.s.

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Summary

Country	Czechia
Domain	ispalliance.cz
ASN	AS210712
Registry	RIPE
ID	CZ-GRAPESC-20031007

WHOIS Details

inetnum:        217.75.208.0 - 217.75.223.255
netname:        CZ-GRAPESC-20031007
country:        CZ
org:            ORG-GSa22-RIPE
admin-c:        GS5801-RIPE
tech-c:         GS5801-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-GRAPESC
mnt-lower:      MNT-GRAPESC
mnt-domains:    MNT-GRAPESC
mnt-routes:     MNT-GRAPESC
created:        2003-10-07T09:33:38Z
last-modified:  2023-08-03T08:50:09Z
source:         RIPE
abuse-email:    abuse@ispalliance.cz
abuse-c:        IA3261-RIPE
abuse-org:      ORG-GSa22-RIPE

organisation:   ORG-GSa22-RIPE
org-name:       ISP Alliance a.s.
country:        CZ
org-type:       LIR
address:        Kukanova 2262
address:        43003
address:        Chomutov
address:        CZECH REPUBLIC
phone:          +420724612176
fax-no:         +420415210805
e-mail:         noc@ispalliance.cz
admin-c:        LR2038-RIPE
abuse-c:        IA3261-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-GRAPESC
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-GRAPESC
created:        2008-04-22T12:13:14Z
last-modified:  2023-12-18T13:24:38Z
source:         RIPE
abuse-email:    abuse@ispalliance.cz
abuse-c:        IA3261-RIPE
abuse-org:      undefined

role:           GRAPESC
address:        Karlovo nám?stí 559/28
address:        120 00 Praha 2
address:        Czech Republic
phone:          +420800911911
e-mail:         ruzicka@grapesc.cz
admin-c:        LR2038-RIPE
tech-c:         LR2038-RIPE
abuse-mailbox:  hotline@grapesc.cz
nic-hdl:        GS5801-RIPE
mnt-by:         MNT-GRAPESC
notify:         ruzicka@grapesc.cz
created:        2008-05-14T08:34:47Z
last-modified:  2023-07-18T16:39:57Z
source:         RIPE

route:          217.75.208.0/20
origin:         AS210712
mnt-by:         MNT-GRAPESC
created:        2025-11-30T13:04:46Z
last-modified:  2025-11-30T13:04:46Z
source:         RIPE

route:          217.75.208.0/20
descr:          GRAPE SC V
descr:          The Czech Republic
origin:         AS47232
mnt-by:         MNT-GRAPESC
created:        2011-03-01T22:47:09Z
last-modified:  2011-07-29T13:41:18Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 217.75.0.0/16

Range	ASN	Company	Num of IPs
217.75.64.0/19	AS5578	SWAN, a.s.	8,192
217.75.224.0/19	AS15919	Servicios de Hosting en Internet S.A.	8,192
217.75.96.0/19	AS12552	GlobalConnect AB	8,192
217.75.192.0/20	AS16178	Logosoft , information engineering and Internet providing	4,096
217.75.48.0/20	AS21021	Multimedia Polska Sp. z o.o.	4,096
217.75.160.0/20	AS50624	Outscale SASU	4,096
217.75.32.0/20	AS16147	Politie Nederland	4,096
217.75.0.0/20	AS16171	Fulnett Limited	4,096
217.75.16.0/21	AS15623	BBCS xDSL/FTTH DHCP dynamic address pool	2,048
217.75.176.0/22	AS29633	Kaerntner Elektrizitaets-Aktiengesellschaft Corp-Net	1,024
217.75.139.0/24	AS8866	Vivacom Bulgaria EAD	256
217.75.207.0/24	AS16178	Logosoft Services	256

Hosted domains

There are 205 domain names hosted across 48 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
217.75.218.98	chytrapumpa.cz	38
217.75.219.8	sarah-thomasova.cz	19
217.75.219.4	remixer.cz	16
217.75.213.227	socpom.cz	13
217.75.219.2	badminton-zatec.cz	10
217.75.219.13	obaly-pytle.cz	10
217.75.221.213	xbalu.cz	8
217.75.222.7	tech4all.cz	7
217.75.216.193	martinpeka.cz	7
217.75.220.9	skolajakostavebnice.cz	6
217.75.216.63	mdsoftsro.cz	6
217.75.213.173	chomutov-mesto.cz	6
217.75.220.51	zamecnictvinohac.cz	5
217.75.216.62	sempro.cz	5
217.75.219.3	likvi.cz	5
217.75.222.8	ibg-net.cz	3
217.75.213.186	chomutovska-knihovna.cz	3
217.75.213.231	echomutov.cz	3
217.75.221.139	zizovci.cz	3
217.75.213.201	chomutov.eu	3

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

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

IP Address	ASN	Details
217.75.208.140	AS210712 ISP Alliance a.s.	`0.34ms` from Prague, CZ
217.75.212.105	AS210712 ISP Alliance a.s.	`0.30ms` from Prague, CZ
217.75.218.114	AS210712 ISP Alliance a.s.	`5.10ms` from Prague, CZ
217.75.209.46	AS210712 ISP Alliance a.s.	`0.33ms` from Prague, CZ
217.75.211.67	AS210712 ISP Alliance a.s.	`0.35ms` from Prague, CZ
217.75.217.117	AS210712 ISP Alliance a.s.	`0.26ms` from Prague, CZ
217.75.222.237	AS210712 ISP Alliance a.s.	`4.54ms` from Prague, CZ
217.75.220.57	AS210712 ISP Alliance a.s.	`4.89ms` from Prague, CZ
217.75.216.114	AS210712 ISP Alliance a.s.	`5.17ms` from Prague, CZ
217.75.219.245	AS210712 ISP Alliance a.s.	`0.26ms` from Prague, CZ
217.75.210.14	AS210712 ISP Alliance a.s.	`0.25ms` from Prague, CZ
217.75.221.132	AS210712 ISP Alliance a.s.	`5.08ms` from Prague, CZ
217.75.214.218	AS210712 ISP Alliance a.s.	`0.30ms` from Prague, CZ
217.75.213.205	AS210712 ISP Alliance a.s.	`1.94ms` 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
76.200.151.68	AS7018 AT&T Enterprises, LLC	`10.66ms` from Atlanta, US
24.125.192.4	AS7922 Comcast Cable Communications, LLC	`5.31ms` from Atlanta, US
120.7.154.244	AS4837 CHINA UNICOM China169 Backbone	`5.70ms` from Beijing, CN
1.231.71.132	AS9318 SK Broadband Co Ltd	`1.56ms` from Incheon, KR
196.34.163.52	AS3741 Dimension Data	`1.08ms` from Johannesburg, ZA
80.4.97.84	AS5089 Virgin Media Limited	`15.92ms` from London, GB
196.235.152.132	AS37492 Orange Tunisie	`18.45ms` from Marseille, FR
189.191.246.164	AS8151 UNINET	`1.50ms` from Mexico City, MX
114.227.58.196	AS4134 CHINANET-BACKBONE	`6.26ms` from Nanjing, CN
100.1.106.68	AS701 Verizon Business	`2.67ms` from New York City, US
195.138.247.20	AS51191 Core-Backbone GmbH	`0.49ms` from Nuernberg, DE
60.136.228.116	AS17676 SoftBank Corp.	`7.04ms` from Osaka, JP
153.203.25.84	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.00ms` from Osaka, JP
118.8.150.164	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.60ms` from Osaka, JP
142.111.176.116	AS214238 HOST TELECOM LTD	`0.11ms` from Secaucus, US
8.147.50.20	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.94ms` from Beijing, CN
172.68.143.132	AS13335 Cloudflare, Inc.	`11.95ms` from Bengaluru, IN
181.6.58.180	AS7303 Telecom Argentina S.A.	`10.11ms` from Buenos Aires, AR
162.190.91.212	AS21928 T-Mobile USA, Inc.	`18.93ms` from Chicago, US
107.2.199.212	AS7922 Comcast Cable Communications, LLC	`3.44ms` from Denver, US
93.215.207.20	AS3320 Deutsche Telekom AG	`2.06ms` from Frankfurt am Main, DE
27.73.99.36	AS7552 Viettel Group	`1.46ms` from Hanoi, VN
15.220.149.36	AS16509 Amazon.com, Inc.	`1.06ms` from Helsinki, FI
218.159.43.20	AS4766 Korea Telecom	`2.79ms` from Incheon, KR
210.99.81.180	AS4766 Korea Telecom	`0.90ms` from Incheon, KR

Traceroute

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

traceroute -a -n -q1 217.75.217.85

traceroute to 217.75.217.85 (217.75.217.85): 64 hops max, 52 byte packets

1 [AS42473] 178.255.154.92 0.404 ms

2 [AS210712] 217.75.217.85 0.285 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On February 16th 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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