General Info

ASN

AS43757

Allocated

2007-09-24T13:16:02Z

Registry

ripe

Domain

i.cz

IP Addresses

2,048

Country

Czech Republic

Network Speed

We don't currently have any network speed data for this network.

Hosted Domains

There are 23 domain names hosted across 4 IP addresses on this ASN.

Show Domains

Protect Your Privacy

A Virtual Private Network (VPN) is an essential tool for protecting your privacy and ensuring your security while online. Read our VPN Guide to find out more.

Whois Details

as-block:       AS40960 - AS45055
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2015-12-10T09:19:56Z
last-modified:  2015-12-10T09:19:56Z
source:         RIPE

aut-num:        AS43757
as-name:        ICZAS-CZ
org:            ORG-Ia714-RIPE
remarks:        >> RADIOKOMUNIKACE (BlueTone-AS)
import:         from AS25248 accept ANY
export:         to AS25248 announce AS43757
remarks:        >> T-Mobile Czech Republic (GTSCZ)
import:         from AS2819 accept ANY
export:         to AS2819 announce AS43757
mp-import:      afi ipv6.unicast from AS2819 accept ANY
mp-export:      afi ipv6.unicast to AS2819 announce AS43757
mp-import:      afi ipv6.unicast from AS25248 accept ANY
mp-export:      afi ipv6.unicast to AS25248 announce AS43757
admin-c:        ICZ-CZ
tech-c:         ICZ-CZ
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ICZAS-MNT
mnt-routes:     ICZAS-MNT
created:        2007-09-24T13:16:02Z
last-modified:  2017-11-15T09:49:44Z
source:         RIPE
sponsoring-org: ORG-Ra2-RIPE

organisation:   ORG-Ia714-RIPE
org-name:       ICZ a.s.
org-type:       OTHER
address:        Na hrebenech II 1718/10
address:        Praha 4
address:        140 00
address:        Czech Republic
e-mail:         hostmaster@i.cz
abuse-c:        ABC-CZ
mnt-ref:        ICZAS-MNT
mnt-by:         ICZAS-MNT
created:        2007-09-19T08:30:38Z
last-modified:  2014-05-09T07:53:15Z
source:         RIPE

role:           ICZ Hostmaster
address:        ICZ a.s.
address:        Na hrebenech II 1718/10
address:        Praha 4
address:        140 00
address:        Czech Republic
phone:          +420 222271111
fax-no:         +420 222271112
e-mail:         hostmaster@i.cz
abuse-mailbox:  abuse@i.cz
admin-c:        JO123
tech-c:         PM-CZ
tech-c:         OB-CZ
tech-c:         PH-CZ
tech-c:         MK-CZ
tech-c:         VO-CZ
tech-c:         JO123
mnt-by:         ICZAS-MNT
nic-hdl:        ICZ-CZ
created:        2008-03-23T10:30:34Z
last-modified:  2017-02-24T11:51:27Z
source:         RIPE

IP Address Ranges

Netblock Description Num IPs
78.31.24.0/21 ICZ a.s. 2,048
Netblock Description
2001:67c:1578::/48 ICZ a.s.

Network Speed

We don't currently have any network speed data for this network.

Hosted Domains

There are 23 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
78.31.26.115 amaio.cz 18
78.31.27.181 ales.sk 3
78.31.26.7 artforum.cz 1
78.31.26.50 antibot.cz 1

Peers

There are 2 peers for this ASN.

RADIOKOMUNIKACE a.s. AS25248
T-Mobile Czech Republic a.s. AS5588

Get Started

Utilize our APIs to get information on any IP address including geolocation, ASN and hostname. It is forever FREE for up to 1000 requests per day.

No Credit card required

Details

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.

Find out more about AS43757 at robtex.

Try our JSON API from the command line

Get started with curl ipinfo.io or check out the documentation to read more.

Documentation
Free for small projects. Pay as you grow.

Our API is free for up to 1,000 requests per day. Our plans suits the company of every size.

Plans & Pricing
A million uses. Easy to implement.

From filtering out bot traffic, to performing bulk IP geolocation, we’ve got it all covered.

Guides