186.237.20.0/22

AS263004 · Cassiano Zanon - CZNET Provedor de Internet

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Summary

Country	Brazil
Domain	cznet.net.br
ASN	AS263004
Registry	LACNIC
ID	CAZ11

WHOIS Details

% Copyright (c) Nic.br - Use of this data is governed by the Use and

inetnum:     186.237.16.0/21
aut-num:     AS263004
abuse-c:     ELNET50
owner:       Cassiano Zanon - CZNET Provedor de Internet
ownerid:     06.910.203/0001-00
responsible: Cassiano Zanon
country:     BR
owner-c:     CAZAN8
tech-c:      CAZAN8
inetrev:     186.237.16.0/21
nserver:     ns1.cznet.com.br
nsstat:      20251215 AA
nslastaa:    20251215
nserver:     ns2.cznet.com.br
nsstat:      20251215 AA
nslastaa:    20251215
created:     20120518
changed:     20151020

nic-hdl-br:  CAZAN8
person:      Cassiano Zanon
e-mail:      [email protected]
country:     BR
created:     20071219
changed:     20201223

nic-hdl-br:  ELNET50
person:      Elevate Network
e-mail:      [email protected]
country:     BR
created:     20210422
changed:     20250228

Nearby Ranges

BGP prefixes that overlap with 186.237.0.0/16

Range	ASN	Company	Num of IPs
186.237.160.0/20	AS262813	Superimagem Tecnologia em Eletronica Ltda	4,096
186.237.224.0/20	AS53217	INFRANET INTERNET LTDA.	4,096
186.237.32.0/20	AS28658	Gigalink de Nova Friburgo Soluções em Rede Multimi	4,096
186.237.128.0/20	AS28330	Megatelecom Telecomunicacoes Ltda	4,096
186.237.0.0/20	AS262797	PROVALE SCM LTDA	4,096
186.237.176.0/20	AS263018	Zapelini & Cia. Ltda.	4,096
186.237.248.0/21	AS263559	Fundacao Educacional da Regiao de Joinville	2,048
186.237.200.0/21	AS61619	POSITIVO S+ SOLUCOES EM TI S.A	2,048
186.237.192.0/21	AS262814	ALGAR TECNOLOGIA E CONSULTORIA SA	2,048
186.237.48.0/21	AS263009	FORTE TELECOM LTDA.	2,048
186.237.112.0/21	AS263010	Ricardo Adolfo Martins ME	2,048
186.237.208.0/21	AS263020	MEGA NET PROVEDOR INTERNET LTDA	2,048
186.237.216.0/21	AS263558	RD TELECOM LTDA -ME	2,048
186.237.120.0/21	AS28343	UNIFIQUE TELECOMUNICACOES S/A	2,048
186.237.144.0/21	AS28343	UNIFIQUE TELECOMUNICACOES S/A	2,048
186.237.240.0/21	AS61583	WDS TELECOM LTDA. ME	2,048
186.237.192.0/21	AS16735	ALGAR TECNOLOGIA E CONSULTORIA SA	2,048
186.237.24.0/22	AS263047	Linkfull melhor fornecedor dos provedores	1,024
186.237.96.0/22	AS270623	DATTAS INTERNET LTDA	1,024
186.237.100.0/22	AS270624	Live Fibra Telecom Ltda	1,024
186.237.104.0/22	AS270625	M. S. TELECOMUNICACOES LTDA	1,024
186.237.157.0/24	AS263553	FIBRARURAL.NET LTDA	256
186.237.159.0/24	AS263553	MACIEL & CARVALHO LTDA	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
186.237.20.249	AS263004 Cassiano Zanon - CZNET Provedor de Internet	`12.88ms` from Novo Hamburgo, BR
186.237.21.128	AS263004 Cassiano Zanon - CZNET Provedor de Internet	`13.16ms` from Novo Hamburgo, BR
186.237.23.254	AS263004 Cassiano Zanon - CZNET Provedor de Internet	`12.84ms` from Novo Hamburgo, BR

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
202.108.54.6	AS4808 China Unicom Beijing Province Network	`3.08ms` from Beijing, CN
84.196.109.246	AS6848 Telenet BV	`8.42ms` from Brussels, BE
201.216.207.166	AS16814 NSS S.A.	`0.37ms` from Buenos Aires, AR
113.168.54.70	AS45899 VNPT Corp	`5.01ms` from Hanoi, VN
20.77.34.54	AS8075 Microsoft Corporation	`0.39ms` from London, GB
67.203.8.22	AS17252 Colocation America Corporation	`0.33ms` from Los Angeles, US
75.54.114.22	AS7018 AT&T Enterprises, LLC	`2.84ms` from Los Angeles, US
111.39.204.246	AS9808 China Mobile Communications Group Co., Ltd.	`10.24ms` from Nanjing, CN
74.79.70.102	AS11351 Charter Communications Inc	`18.43ms` from New York City, US
50.88.83.134	AS33363 Charter Communications, Inc	`5.67ms` from Orlando, US
34.147.78.246	AS396982 Google LLC	`0.14ms` from Oudeschip, NL
98.179.82.246	AS22773 Cox Communications Inc.	`4.50ms` from Phoenix, US
71.63.188.118	AS7922 Comcast Cable Communications, LLC	`7.63ms` from Portland, US
93.100.18.54	AS35807 SkyNet Ltd.	`0.71ms` from Saint Petersburg, RU
188.233.128.86	AS39435 JSC ER-Telecom Holding	`10.49ms` from Samara, RU
216.132.38.214	AS29852 Honest Networks, LLC	`2.24ms` from Secaucus, US
121.117.72.70	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.13ms` from Tokyo, JP
180.52.49.54	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.90ms` from Tokyo, JP
72.251.1.6	AS16276 OVH SAS	`1.45ms` from Toronto, CA
74.199.248.214	AS3257 GTT Communications Inc.	`0.33ms` from Toronto, CA
5.237.239.54	AS58224 Iran Telecommunication Company PJS	`16.38ms` from Yerevan, AM
208.76.69.22	AS396982 Google LLC	`0.48ms` from Brussels, BE
66.112.246.86	AS395461 Apogee Telecom Inc.	`5.19ms` from Dallas, US
72.48.250.70	AS7459 Grande Communications Networks, LLC	`10.20ms` from Dallas, US
4.150.195.166	AS8075 Microsoft Corporation	`1.15ms` from Des Moines, US

Traceroute

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

traceroute -a -n -q1 -f6 186.237.21.65

traceroute to 186.237.21.65 (186.237.21.65): 64 hops max, 52 byte packets

6 [AS263004] 186.237.21.65 25.399 ms

Measurement taken from

IPinfo ProbeNet in Sao Jose do Rio Preto, BR

On December 14th 2025

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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