1. All IP Ranges
  2. 77.0.0.0/8
  3. 77.104.0.0/16
  4. AS39906  | 77.104.204.0/24

77.104.204.0/24

AS39906  ·  CoProSys a.s.

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Summary

Country Czechia
Domain crfreenet.org
ASN AS39906
Parent Range 77.104.192.0/18
Registry RIPE
ID CRFREENET-CZ

WHOIS Details

inetnum:        77.104.200.0 - 77.104.207.255
netname:        CRFREENET-CZ
descr:          77.104.200.0/28 wireless near Strojaru 1151 77.104.200.16/28 ethernet near Strelecka 794 77.104.200.32/28 ethernet near Klasterni 600 77.104.200.48/28 wireless 5GHz near Husova 777 77.104.200.64/28 wireless near Mladeznicka 1022 77.104.200.80/28 ethernet near Vitezstvi 207, Slatinany 77.104.200.96/28 ethernet near Dr. Vaclava Peska 674 77.104.200.112/28 wthernet near Sv. Cecha 369 77.104.200.128/28 ethernet near Cechova 747, Slatinany 77.104.200.144/28 ethernet near Slovenska 451 77.104.200.160/28 ethernet near J. E. Purkyne 550 77.104.200.176/28 wireless near Strelecka 794 77.104.200.192/28 ethernet near Sv. Cecha 50 77.104.200.208/28 wireless near Sokolovska 488 77.104.200.224/28 Social care institute 77.104.200.240/28 ethernet near Rabstejnska Lhota 69 77.104.201.0/27 ethernet near Palackeho 482 77.104.201.32/27 ethernet near Jiraskova 799 77.104.201.64/27 ethernet near Dr. Vaclava Peska 672 77.104.201.96/27 ethernet near K Presum 214 77.104.201.128/27 wireless near K Presum 214 77.104.201.160/27 wireless near Husova 777 77.104.201.192/27 wireless near Rabstejnska Lhota 69 77.104.201.224/27 wireless near Dr. Vaclava Peska 672 77.104.202.0/27 wireless near J. E. Purkyne 550 77.104.202.32/27 wireless near Rabstejnskรก Lhota 143 77.104.202.64/27 wireless of Social care institute 77.104.202.96/27 wireless 5GHz near K Presum 214 77.104.202.128/27 ethernet near Fibichova 640 1x/27 FREE 77.104.202.192/26 wireless 5GHz near Novomestska 69 77.104.203.0/26 wireless near Rabstejnskรก Lhota 76 77.104.203.64/26 wireless near Filistinska 21 77.104.203.128/26 wireless near Cechova 747, Slatinany 77.104.203.192/26 wireless near Na Vetrniku 1206 77.104.204.0/26 wireless near Klasterni 600 77.104.204.64/26 wireless near Novomestska 69 77.104.204.128/26 wireless near Sobetuchy 40 77.104.204.192/26 wireless near Slovenska 451 77.104.205.0/26 wireless near Jiraskova 799 77.104.205.64/26 wireless near Gorkeho 566 77.104.205.128/25 wireless near Sv. Cecha 50 77.104.206.0/25 wireless near Sv. Cecha 369 77.104.206.128/25 wireless 5GHz near J. E. Purkyne 550
country:        CZ
admin-c:        DZ882-RIPE
tech-c:         CPST1-RIPE
status:         ASSIGNED PA
mnt-by:         COPROSYS-MNT
created:        2008-09-10T13:52:57Z
last-modified:  2008-09-10T13:55:34Z
source:         RIPE
abuse-email:    abuse@coprosys.cz
abuse-c:        AR14409-RIPE
abuse-org:      ORG-Ca781-RIPE

role:           CoProSys Tech-c
address:        CoProSys, a.s.
address:        NA KOPCI 239
address:        CHRUDIM IV
address:        537 05
address:        CZECH REPUBLIC
phone:          +420 469 775 775
fax-no:         +420 255 701 343
e-mail:         hostmaster@coprosys.cz
abuse-mailbox:  abuse@coprosys.cz
admin-c:        VJ238-RIPE
tech-c:         AK12925-RIPE
nic-hdl:        CPST1-RIPE
mnt-by:         COPROSYS-MNT
created:        2006-08-09T15:47:32Z
last-modified:  2020-04-29T16:06:08Z
source:         RIPE

person:         David Zejda
address:        Sv.Cecha 50, Chrudim
e-mail:         zejda@crfreenet.org
phone:          +420777065399
nic-hdl:        DZ882-RIPE
created:        2006-11-21T13:09:41Z
last-modified:  2020-06-04T10:37:26Z
source:         RIPE
mnt-by:         COPROSYS-MNT

route:          77.104.192.0/19
descr:          CoProSys a.s.
origin:         as39906
mnt-by:         COPROSYS-MNT
created:        2012-06-27T07:01:13Z
last-modified:  2012-06-27T07:01:13Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 77.104.204.0/24

Range ASN Company Num of IPs
77.104.192.0/18 AS39906 CoProSys a.s. 16,384

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity
Read more

Pingable IPs

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

IP Address ASN Details
77.104.204.14 AS39906 CoProSys a.s. 0.51ms 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
31.171.169.8 AS60411 Network Kazakhstan LLC 1.00ms from Almaty, KZ
180.151.151.152 AS10029 SHYAM SPECTRA PVT LTD 1.06ms from Delhi, IN
23.94.67.120 AS36352 HostPapa 0.27ms from Dublin, IE
37.78.214.40 AS12389 PJSC Rostelecom 1.25ms from Krasnodar, RU
172.222.247.248 AS20115 Charter Communications LLC 7.55ms from Los Angeles, US
34.102.248.120 AS396982 Google LLC 0.08ms from Melbourne, AU
34.111.131.248 AS396982 Google LLC 0.08ms from Melbourne, AU
71.58.39.216 AS7922 Comcast Cable Communications, LLC 11.16ms from New York City, US
123.48.118.120 AS18126 Chubu Telecommunications Company, Inc. 5.09ms from Osaka, JP
222.148.204.120 AS4713 NTT Communications Corporation 14.80ms from Osaka, JP
223.216.151.24 AS4713 NTT Communications Corporation 13.74ms from Osaka, JP
108.52.103.56 AS701 Verizon Business 2.48ms from Philadelphia, US
205.185.117.232 AS53667 FranTech Solutions 7.00ms from Phoenix, US
183.108.59.104 AS4766 Korea Telecom 3.09ms from Seoul, KR
62.242.220.200 AS3292 TDC Holding A/S 1.23ms from Skanderborg, DK
2.59.10.8 AS42830 STK "TV SAT 364" 2.64ms from Warsaw, PL
60.225.136.248 AS1221 Telstra Limited 8.97ms from Adelaide, AU
96.44.145.184 AS36352 HostPapa 0.38ms from Dallas, US
13.79.244.8 AS8075 Microsoft Corporation 0.20ms from Dublin, IE
78.155.10.136 AS15547 netplus.ch SA 10.61ms from Geneve, CH
125.119.245.120 AS4134 CHINANET-BACKBONE 5.90ms from Hangzhou, CN
115.214.113.152 AS4134 CHINANET-BACKBONE 10.27ms from Hangzhou, CN
187.75.74.88 AS27699 TELEFÔNICA BRASIL S.A 2.21ms from Osasco, BR
63.194.97.200 AS7018 AT&T Enterprises, LLC 6.46ms from San Jose, US
222.108.131.248 AS4766 Korea Telecom 0.88ms 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 77.104.204.1
traceroute to 77.104.204.1 (77.104.204.1): 64 hops max, 52 byte packets
1 [AS174] 193.235.207.1 2.867 ms
2 [AS174] 154.25.2.229 0.958 ms
3 [AS174] 130.117.49.37 1.181 ms
4 [AS174] 149.6.24.50 0.468 ms
7 [AS39906] 94.138.101.86 29.833 ms
8 [AS39906] 77.104.204.1 3.493 ms
Measurement taken from IPinfo ProbeNet in Prague, CZ
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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