1. All IP Ranges
  2. 91.0.0.0/8
  3. 91.191.0.0/16
  4. AS5610  | 91.191.64.0/18

91.191.64.0/18

AS5610  ·  O2 Czech Republic, a.s.

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Summary

Country Slovakia
Domain cetin.sk
ASN AS5610
Registry RIPE
ID SK-O2N-20061227

WHOIS Details

inetnum:        91.191.64.0 - 91.191.127.255
netname:        SK-O2N-20061227
country:        SK
org:            ORG-ONS12-RIPE
admin-c:        SKTO2-RIPE
tech-c:         SKTO2-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         O2SK-MNT
mnt-routes:     AS5610-MTN
mnt-routes:     O2SK-MNT
created:        2006-12-27T15:43:19Z
last-modified:  2023-05-05T06:30:17Z
source:         RIPE
abuse-email:    abuse@o2bs.sk
abuse-c:        AR70240-RIPE
abuse-org:      ORG-ONS12-RIPE

organisation:   ORG-ONS12-RIPE
org-name:       CETIN Networks, s.r.o.
country:        SK
org-type:       LIR
address:        Pribinova 40
address:        811 09
address:        Bratislava - mestská ?as? Staré Mesto
address:        SLOVAKIA
phone:          +421915793306
e-mail:         ivan.gasparik@o2networks.sk
admin-c:        ONAR1-RIPE
tech-c:         ONAR1-RIPE
abuse-c:        AR70240-RIPE
mnt-ref:        lir-sk-o2n-1-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         lir-sk-o2n-1-MNT
created:        2023-04-28T08:31:39Z
last-modified:  2025-09-08T10:16:48Z
source:         RIPE
abuse-email:    abuse@o2bs.sk
abuse-c:        AR70240-RIPE
abuse-org:      undefined

role:           SKTO2-RIPE role
address:        O2 Slovakia, s.r.o
address:        Pribinova 40
address:        811 09 Bratislava
address:        Slovakia
e-mail:         bohuslav.plucinsky@cetin.sk
admin-c:        IG3785-RIPE
tech-c:         BP323-RIPE
abuse-mailbox:  abuse@o2bs.sk
nic-hdl:        SKTO2-RIPE
mnt-by:         O2SK-MNT
created:        2006-11-03T10:31:34Z
last-modified:  2025-02-20T11:46:07Z
source:         RIPE

route:          91.191.96.0/19
descr:          O2.SK
origin:         AS28952
mnt-by:         O2SK-MNT
created:        2019-06-19T19:23:17Z
last-modified:  2019-06-19T19:23:17Z
source:         RIPE

Overlapping Ranges

BGP prefixes that are contained by 91.191.64.0/18

Range ASN Company Num of IPs
91.191.69.0/24 AS28952 O2 Slovakia s.r.o. 256
91.191.80.0/22 AS28952 O2 Slovakia s.r.o. 1,024

Nearby Ranges

BGP prefixes that overlap with 91.191.0.0/16

Range ASN Company Num of IPs
91.191.224.0/19 AS12668 LLC KomTehCentr 8,192
91.191.144.0/20 AS34177 CTS Computers and Telecommunications Systems SAS 4,096
91.191.128.0/21 AS834 Internet Utilities Europe and Asia Limited 2,048
91.191.136.0/21 AS834 Turknet Iletisim Hizmetleri A.S 2,048
91.191.176.0/22 AS62336 PURtel.com GmbH 1,024
91.191.80.0/22 AS28952 O2 Slovakia s.r.o. 1,024
91.191.216.0/23 AS205331 WI-MAX NET Ltd. 512
91.191.206.0/23 AS41997 Connect CJSC 512
91.191.192.0/23 AS41997 Connect CJSC 512
91.191.12.0/24 AS35567 udrigovo-extra-pool 256
91.191.13.0/24 AS35567 brcko-extra-pool 256
91.191.14.0/24 AS35567 brcko-extra-pool 256
91.191.15.0/24 AS35567 brcko-extra-pool 256
91.191.16.0/24 AS35567 lisac-extra-pool 256
91.191.17.0/24 AS35567 lisac-extra-pool 256
91.191.18.0/24 AS35567 lisin-net-pool 256
91.191.19.0/24 AS35567 zona-s-pool 256
91.191.20.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.21.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.22.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.23.0/24 AS35567 vzep-extra-pool 256
91.191.24.0/24 AS35567 kraljica-net-pool 256
91.191.25.0/24 AS35567 trebevic-net-pool 256
91.191.26.0/24 AS35567 udrigovo-net-pool 256
91.191.27.0/24 AS35567 hrgud-net-pool 256
91.191.28.0/24 AS35567 trebevic-net-pool 256
91.191.29.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.31.0/24 AS35567 vgomila-net-pool 256
91.191.34.0/24 AS35567 udrigovo-extra-pool 256
91.191.35.0/24 AS35567 kozara-net-pool 256
91.191.36.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.37.0/24 AS35567 malic-net-pool 256
91.191.38.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.39.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.42.0/24 AS35567 motajica-net-pool 256
91.191.43.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.44.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.45.0/24 AS35567 vzep-net-pool 256
91.191.46.0/24 AS35567 trebevic-net-pool 256
91.191.47.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.48.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.49.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.50.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.51.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.54.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.55.0/24 AS35567 brcko-extra-pool 256
91.191.57.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.58.0/24 AS35567 DASTO semtel d.o.o. 256
91.191.59.0/24 AS35567 udrigovo-net-pool 256

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
91.191.87.99 collaro.fr 1
91.191.68.7 o2tipy.sk 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

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

IP Address ASN Details
91.191.68.6 AS5610 O2 Czech Republic, a.s. 1.32ms from Prague, CZ
91.191.82.69 AS28952 O2 Business Services, a.s 12.68ms from Bratislava, SK
91.191.81.111 AS28952 O2 Business Services, a.s 0.91ms from Bratislava, SK
91.191.80.73 AS28952 O2 Business Services, a.s 10.18ms from Bratislava, SK
91.191.69.86 AS28952 O2 Business Services, a.s 13.07ms from Bratislava, SK

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
3.234.13.34 AS14618 Amazon.com, Inc. 0.59ms from Ashburn, US
173.75.144.2 AS701 Verizon Business 6.71ms from Ashburn, US
103.151.83.2 AS140643 Netbright 0.11ms from Brisbane, AU
203.100.7.194 AS24436 University of Queensland 0.60ms from Brisbane, AU
198.101.48.242 AS15081 Omni Fiber 3.96ms from Columbus, US
162.17.145.210 AS7922 Comcast Cable Communications, LLC 9.23ms from Flint, US
91.54.175.34 AS3320 Deutsche Telekom AG 8.96ms from Frankfurt am Main, DE
125.105.145.34 AS4134 CHINANET-BACKBONE 9.79ms from Hangzhou, CN
80.221.37.226 AS1759 Telia Finland Oyj 1.21ms from Helsinki, FI
98.173.99.194 AS62957 HOSPITALITY NETWORK, LLC 6.56ms from Los Angeles, US
84.124.69.162 AS6739 VODAFONE ONO, S.A. 12.64ms from Madrid, ES
201.224.156.18 AS11556 Cable & Wireless Panama 7.24ms from Panama, PA
90.227.55.242 AS3301 Telia Company AB 0.71ms from Stockholm, SE
210.165.240.194 AS2514 NTT PC Communications, Inc. 3.51ms from Tokyo, JP
60.39.84.66 AS4713 NTT DOCOMO BUSINESS,Inc. 3.46ms from Tokyo, JP
111.46.18.194 AS9808 China Mobile Communications Group Co., Ltd. 3.74ms from Wuhan, CN
86.83.79.146 AS1136 KPN B.V. 1.46ms from Amsterdam, NL
100.27.153.194 AS14618 Amazon.com, Inc. 0.48ms from Ashburn, US
184.2.84.114 AS19901 Brightspeed 7.85ms from Ashburn, US
73.99.178.34 AS7922 Comcast Cable Communications, LLC 6.68ms from Ashburn, US
212.251.121.130 AS1241 Forthnet 6.21ms from Athens, GR
143.109.20.2 AS398025 Cumberland Connect 12.94ms from Atlanta, US
34.170.132.178 AS396982 Google LLC 0.11ms from Council Bluffs, US
34.45.101.114 AS396982 Google LLC 0.12ms from Council Bluffs, US
12.247.220.130 AS7018 AT&T Enterprises, LLC 1.07ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -m7 91.191.77.93
traceroute to 91.191.77.93 (91.191.77.93): 7 hops max, 52 byte packets
1 [AS15169] 142.251.248.129 151.368 ms
2 [AS15169] 192.178.98.110 150.888 ms
3 [AS5610] 194.228.92.84 156.145 ms
4 [AS5610] 194.228.21.200 158.982 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Las Vegas, US
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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