186.237.20.0/22

AS263004 · CZNET PROVEDOR DE INTERNET LTDA

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Summary

Country	Brazil
Domain	cznet.com.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:       CZNET PROVEDOR DE INTERNET LTDA
ownerid:     06.910.203/0001-00
responsible: CASSIANO ZANON
owner-c:     CAZAN8
tech-c:      CAZAN8
inetrev:     186.237.16.0/21
nserver:     ns1.cznet.com.br
nsstat:      20260123 AA
nslastaa:    20260123
nserver:     ns2.cznet.com.br
nsstat:      20260123 AA
nslastaa:    20260123
created:     20120518
changed:     20151020

nic-hdl-br:  CAZAN8
person:      Cassiano Zanon
created:     20071219
changed:     20201223

nic-hdl-br:  ELNET50
person:      Elevate Network
created:     20210422
changed:     20250228

Nearby Ranges

BGP prefixes that overlap with 186.237.0.0/16

Range	ASN	Company	Num of IPs
186.237.0.0/20	AS262797	PROVALE SCM LTDA	4,096
186.237.176.0/20	AS263018	Zapelini & Cia. 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
186.237.160.0/20	AS262813	Superimagem Tecnologia em Eletronica Ltda	4,096
186.237.192.0/21	AS16735	ALGAR TECNOLOGIA E CONSULTORIA SA	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
186.237.248.0/21	AS263559	Fundacao Educacional da Regiao de Joinville	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
186.237.24.0/22	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
186.237.28.0/22	AS262965	KOSMO COMPUTACAO EM NUVEM 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

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

IP Address	ASN	Details
186.237.23.251	AS263004 CZNET PROVEDOR DE INTERNET LTDA	`2.37ms` from Chapeco, BR
186.237.21.2	AS263004 CZNET PROVEDOR DE INTERNET LTDA	`2.38ms` from Chapeco, BR
186.237.20.73	AS263004 CZNET PROVEDOR DE INTERNET LTDA	`2.37ms` from Chapeco, 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
158.101.195.166	AS31898 Oracle Corporation	`0.18ms` from Amsterdam, NL
101.200.169.70	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.45ms` from Beijing, CN
52.61.181.86	AS8987 Amazon Data Services Ireland Ltd	`0.31ms` from Boardman, US
12.246.42.150	AS7018 AT&T Enterprises, LLC	`2.54ms` from Chicago, US
20.233.137.70	AS8075 Microsoft Corporation	`1.28ms` from Dubai, AE
136.48.8.198	AS16591 Google Fiber Inc.	`4.51ms` from Kansas City, US
186.53.92.214	AS6057 Administracion Nacional de Telecomunicaciones	`1.74ms` from Montevideo, UY
60.99.227.214	AS17676 SoftBank Corp.	`3.90ms` from Osaka, JP
152.249.172.22	AS27699 TELEFÔNICA BRASIL S.A	`5.37ms` from Osasco, BR
83.178.214.230	AS1257 Tele2 Sverige AB	`14.24ms` from Riga, LV
189.136.10.70	AS8151 UNINET	`4.54ms` from Santiago de Queretaro, MX
202.213.127.38	AS7668 Hokuriku Telecommunication Network Co.	`7.21ms` from Tokyo, JP
145.140.187.118	AS1103 SURF B.V.	`0.35ms` from Amsterdam, NL
83.247.50.230	AS12414 Solcon Internetdiensten B.V.	`2.56ms` from Amsterdam, NL
84.176.73.182	AS3320 Deutsche Telekom AG	`3.23ms` from Frankfurt am Main, DE
139.159.219.38	AS55990 Huawei Cloud Service data center	`1.45ms` from Guangzhou, CN
76.236.212.166	AS7018 AT&T Enterprises, LLC	`3.08ms` from Miami, US
3.108.77.102	AS16509 Amazon.com, Inc.	`0.12ms` from Mumbai, IN
79.52.5.134	AS3269 Telecom Italia S.p.A.	`4.67ms` from Naples, IT
91.38.204.102	AS3320 Deutsche Telekom AG	`5.80ms` from Nuernberg, DE
219.111.17.198	AS2497 Internet Initiative Japan Inc.	`8.27ms` from Osaka, JP
49.212.164.150	AS9371 SAKURA Internet Inc.	`0.36ms` from Osaka, JP
216.132.38.214	AS29852 Honest Networks, LLC	`2.23ms` from Secaucus, US
118.47.29.246	AS4766 Korea Telecom	`6.29ms` from Seoul, KR
85.187.42.6	AS203633 EL-DI 81 Ltd.	`6.91ms` from Sofia, BG

Traceroute

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

traceroute -a -n -q1 -f7 186.237.23.251

traceroute to 186.237.23.251 (186.237.23.251): 64 hops max, 52 byte packets

7 [AS263004] 186.237.23.251 2.429 ms

Measurement taken from

IPinfo ProbeNet in Chapeco, BR

On January 18th 2026

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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