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

Nearby Ranges

BGP prefixes that overlap with 77.104.0.0/16

Range ASN Company Num of IPs
77.104.128.0/18 AS13037 Zen Internet Ltd 16,384
77.104.0.0/18 AS15557 COMPLETEL SAS 16,384
77.104.192.0/18 AS39906 CoProSys a.s. 16,384
77.104.64.0/18 AS42337 IP Master Group LLC FZ 16,384
77.104.96.0/19 AS42337 Respina Networks & Beyond PJSC 8,192
77.104.80.0/20 AS42337 Respina Networks & Beyond PJSC 4,096
77.104.120.0/22 AS42337 Respina Networks & Beyond PJSC 1,024
77.104.116.0/22 AS42337 Respina Networks & Beyond PJSC 1,024
77.104.124.0/24 AS204812 Respina Networks & Beyond PJSC 256
77.104.92.0/24 AS205207 AbreNik-Cloud 256
77.104.102.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.106.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.126.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.96.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.64.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.68.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.70.0/24 AS42337 Fars News University 256
77.104.72.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.76.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.77.0/24 AS42337 Tehran Commerce Organization 256
77.104.80.0/24 AS42337 Shahed University 256
77.104.81.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.85.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.86.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.90.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.95.0/24 AS42337 Respina Networks & Beyond PJSC 256
77.104.194.0/24 AS201476 System NET LINE s.r.o. 256
77.104.216.0/24 AS201476 Customer CPS-NETLINE 256
77.104.210.0/24 AS201476 System NET LINE s.r.o. 256
77.104.223.0/24 AS201476 System NET LINE s.r.o. 256
77.104.240.0/24 AS201476 System NET LINE s.r.o. 256
77.104.245.0/24 AS201476 System NET LINE s.r.o. 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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. 0.46ms 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
3.229.172.200 AS14618 Amazon.com, Inc. 0.49ms from Ashburn, US
190.226.122.216 AS7303 Telecom Argentina S.A. 5.05ms from Asuncion, PY
92.117.7.248 AS8881 1&1 Versatel GmbH 4.56ms from Duesseldorf, DE
18.156.156.184 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
119.247.185.168 AS9269 Hong Kong Broadband Network Ltd. 0.92ms from Hong Kong, HK
109.145.95.40 AS2856 British Telecommunications PLC 5.73ms from London, GB
58.71.86.24 AS9299 Philippine Long Distance Telephone Company 1.27ms from Manila, PH
90.5.64.120 AS3215 Orange S.A. 3.75ms from Marseille, FR
120.79.40.120 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.49ms from Shenzhen, CN
188.42.17.152 AS7979 Servers.com, Inc. 0.14ms from Ashburn, US
24.175.45.120 AS11427 Charter Communications Inc 1.75ms from Dallas, US
72.32.66.24 AS33070 Rackspace Hosting 0.95ms from Dallas, US
45.166.38.200 AS267951 ALVARO REBOUÇAS COELHO - ME 0.58ms from Fortaleza, BR
212.243.33.136 AS41503 Barclays Bank (Suisse) SA 1.00ms from Geneve, CH
193.11.156.104 AS1653 Vetenskapsradet / SUNET 5.46ms from Goeteborg, SE
151.241.194.168 AS2856 British Telecommunications PLC 1.40ms from London, GB
90.71.82.136 AS12479 Orange Espagne SA 3.87ms from Madrid, ES
151.40.205.88 AS1267 WIND TRE S.P.A. 7.60ms from Milan, IT
72.187.34.136 AS33363 Charter Communications, Inc 9.19ms from Orlando, US
60.153.170.136 AS17676 SoftBank Corp. 3.82ms from Osaka, JP
187.123.169.40 AS28573 Claro NXT Telecomunicacoes Ltda 11.45ms from Osasco, BR
18.144.103.184 AS16509 Amazon.com, Inc. 0.16ms from San Jose, US
64.174.150.136 AS7018 AT&T Enterprises, LLC 2.55ms from San Jose, US
174.21.46.8 AS209 CenturyLink Communications, LLC 1.30ms from Seattle, US
14.90.17.8 AS4766 Korea Telecom 1.82ms 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 -f2 77.104.204.14
traceroute to 77.104.204.14 (77.104.204.14): 64 hops max, 52 byte packets
2 [] 91.210.16.187 0.386 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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