91.217.96.0/23

AS51521 · Resident Control Telco s.r.o.

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Summary

Country	Czechia
Domain	kmnet.cz
ASN	AS51521
Registry	RIPE
ID	ORG-RESI3-RIPE

WHOIS Details

inetnum:        91.217.96.0 - 91.217.97.255
netname:        ORG-RESI3-RIPE
country:        CZ
org:            ORG-RESI3-RIPE
sponsoring-org: ORG-Vs35-RIPE
admin-c:        SMUT1-RIPE
tech-c:         SMUT1-RIPE
status:         ASSIGNED PI
mnt-by:         RESIDENT-MNT
mnt-by:         RIPE-NCC-END-MNT
created:        2023-07-25T09:27:57Z
last-modified:  2023-07-25T09:27:57Z
source:         RIPE
abuse-email:    holub@resident-control.cz
abuse-c:        ACRO53492-RIPE
abuse-org:      ORG-Vs35-RIPE

organisation:   ORG-RESI3-RIPE
org-name:       Resident Control Telco s.r.o.
country:        CZ
org-type:       OTHER
address:        Jedovnicka 2347/6, Lisen, 628 00 Brno
e-mail:         holub@resident-control.cz
abuse-c:        ACRO53492-RIPE
mnt-ref:        vissado-mnt
created:        2023-07-20T10:38:15Z
last-modified:  2023-07-25T09:27:57Z
source:         RIPE
mnt-by:         vissado-mnt

person:         Tomas Smutny
address:        smutny@kmnet.cz
phone:          +420777311161
nic-hdl:        SMUT1-RIPE
created:        2010-08-31T16:39:04Z
last-modified:  2016-04-06T18:45:12Z
mnt-by:         RIPE-NCC-LOCKED-MNT
source:         RIPE

route:          91.217.96.0/23
origin:         AS51521
mnt-by:         RESIDENT-MNT
mnt-by:         FASTER-MNT
created:        2021-02-11T14:06:34Z
last-modified:  2022-03-29T06:34:42Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 91.217.0.0/16

Range	ASN	Company	Num of IPs
91.217.52.0/23	AS197444	COMFEEL s.r.o.	512
91.217.110.0/23	AS50860	Tomsk City Administration	512
91.217.78.0/23	AS51518	EKMA IS LLC	512
91.217.24.0/23	AS197250	Urzad Komunikacji Elektronicznej	512
91.217.48.0/23	AS196730	TELSAT.TV Sp. z o.o.	512
91.217.30.0/23	AS209383	Securitas Alert Services Nederland B.V.	512
91.217.10.0/23	AS49791	SERGEI MURATOV	512
91.217.46.0/23	AS51442	Stream Telecom Ltd.	512
91.217.88.0/23	AS51516	Fexco Unlimited Company	512
91.217.114.0/23	AS60555	Micro & Services Informatiques SAS	512
91.217.94.0/23	AS16347	ADISTA SAS	512
91.217.36.0/23	AS51483	Heisenbergstr. 4	512
91.217.68.0/23	AS197681	PE Savchin Igor Miroslavovich	512
91.217.106.0/23	AS200598	Lunarnaut, LLC	512
91.217.72.0/23	AS203020	leased to HostRoyale	512
91.217.62.0/23	AS41024	LLC Megacom-IT	512
91.217.112.0/23	AS47517	JSC UKRAINIAN RAILWAYS	512
91.217.16.0/23	AS51419	Internet Business Technologies Ltd.	512
91.217.18.0/23	AS51426	Teleport sp. z o.o.	512
91.217.42.0/23	AS51448	Uralskie Kabelnye Seti Ltd.	512
91.217.92.0/23	AS51509	NEO IT d.o.o.	512
91.217.104.0/23	AS51589	Faith-Net S.C. Robert Wrobel, Stanislaw Sutkowski	512
91.217.108.0/23	AS51592	OOO Svift Telecom	512
91.217.58.0/23	AS197251	FOP TERESHCHENKO OLEKSANDR TROHUMOVICH	512
91.217.60.0/23	AS197255	ZAT Televizijni kabelni merezhi Vsesvit	512
91.217.74.0/23	AS12695	LIMITED LIABILITY COMPANY ISBIZ	512
91.217.102.0/23	AS197258	PJSC Sovkombank	512
91.217.64.0/23	AS51460	Sina Bank	512
91.217.98.0/23	AS196792	FIBERHOST S.A.	512
91.217.82.0/23	AS13209	Atom Hosting SRL	512
91.217.86.0/23	AS197269	Ritter Technologie GmbH	512
91.217.34.0/23	AS197153	Glavnoe Upravlenie Vnutrennih Del po Sverdlovskoi Oblasti	512
91.217.32.0/23	AS201603	AIRNET s.r.o.	512
91.217.38.0/23	AS31543	tirolnet gmbh	512
91.217.4.0/23	AS39728	Likhno Dmitriy trading as Luganet	512
91.217.40.0/23	AS197217	Shentel Sp. z o.o.	512
91.217.66.0/23	AS41360	NEOCOM Ltd.	512
91.217.12.0/23	AS197218	PP Dmutrashko Evgeny Vitalievich	512
91.217.0.0/23	AS51399	Fiberway Sp. z o.o.	512
91.217.204.0/24	AS197265	Asseco Cloud Sp. z o. o.	256
91.217.180.0/24	AS197258	PJSC Sovkombank	256
91.217.225.0/24	AS197082	Zuers.net Betriebs GmbH	256
91.217.184.0/24	AS197257	OOO Security enterprise ARES-OHRANA	256
91.217.251.0/24	AS197071	active 1 GmbH	256
91.217.179.0/24	AS197254	Startnet LTD	256
91.217.155.0/24	AS196945	Microbase PC	256
91.217.174.0/24	AS198710	Deutsche Online Agentur GmbH	256
91.217.166.0/24	AS198584	Nahor Hadish Design and Architecture Co., Ltd	256
91.217.209.0/24	AS198463	Dialect Group AB	256

Hosted domains

There are 9 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
91.217.96.226	rn-servis.cz	3
91.217.96.224	sanacedreva.cz	3
91.217.96.138	paralelnipeceozdravi.cz	1
91.217.96.238	syskit.cz	1
91.217.96.248	mail2.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

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

IP Address	ASN	Details
91.217.96.145	AS51521 Resident Control Telco s.r.o.	`4.29ms` from Prague, CZ
91.217.97.129	AS51521 Resident Control Telco s.r.o.	`4.33ms` 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
31.171.164.231	AS60411 Network Kazakhstan LLC	`0.92ms` from Almaty, KZ
40.76.51.135	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
5.12.156.119	AS8708 DIGI ROMANIA S.A.	`1.09ms` from Bucharest, RO
59.149.85.199	AS9269 Hong Kong Broadband Network Ltd.	`1.34ms` from Hong Kong, HK
86.2.42.167	AS5089 Virgin Media Limited	`5.66ms` from London, GB
47.198.67.135	AS5650 Frontier Communications of America, Inc.	`6.42ms` from Miami, US
171.109.20.87	AS4134 CHINANET-BACKBONE	`4.19ms` from Nanning, CN
54.237.237.199	AS14618 Amazon.com, Inc.	`0.25ms` from Reston, US
52.78.60.167	AS16509 Amazon.com, Inc.	`0.13ms` from Seoul, KR
211.249.45.7	AS23576 NAVER Cloud Corp.	`2.42ms` from Seoul, KR
123.19.38.87	AS45899 VNPT Corp	`2.81ms` from Da Nang, VN
66.142.117.247	AS7018 AT&T Enterprises, LLC	`9.86ms` from Dallas, US
81.154.216.231	AS2856 British Telecommunications PLC	`3.93ms` from London, GB
37.133.231.151	AS12479 Orange Espagne SA	`7.13ms` from Madrid, ES
1.13.169.119	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.01ms` from Nanjing, CN
151.73.151.167	AS1267 WIND TRE S.P.A.	`6.84ms` from Rome, IT
92.47.150.103	AS9198 JSC Kazakhtelecom	`0.44ms` from Almaty, KZ
156.247.37.7	AS138415 Yancy Limited	`0.68ms` from Hong Kong, HK
203.186.31.87	AS9269 Hong Kong Broadband Network Ltd.	`0.52ms` from Hong Kong, HK
93.186.46.7	AS3213 Bogons Ltd	`12.91ms` from London, GB
208.106.136.7	AS14992 NewtekOne, Inc.	`9.71ms` from Los Angeles, US
89.162.13.183	AS29695 Altibox AS	`14.56ms` from Oslo, NO
92.135.122.103	AS3215 Orange S.A.	`12.47ms` from Paris, FR
54.243.186.39	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
115.11.7.39	AS4766 Korea Telecom	`4.55ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f3 91.217.97.145

traceroute to 91.217.97.145 (91.217.97.145): 64 hops max, 52 byte packets

3 [AS13194] 185.0.20.243 1.257 ms

4 *

5 *

6 [AS51521] 91.217.97.145 4.828 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On January 9th 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.

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