186.237.16.0/22

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

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

IP Address	ASN	Details
186.237.16.65	AS263004 CZNET PROVEDOR DE INTERNET LTDA	`2.36ms` from Chapeco, BR
186.237.17.1	AS263004 CZNET PROVEDOR DE INTERNET LTDA	`2.45ms` from Chapeco, BR
186.237.18.33	AS263004 CZNET PROVEDOR DE INTERNET LTDA	`2.36ms` 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
20.126.103.102	AS8075 Microsoft Corporation	`0.21ms` from Amsterdam, NL
86.59.160.166	AS5483 Magyar Telekom Plc.	`0.87ms` from Budapest, HU
75.50.235.166	AS7018 AT&T Enterprises, LLC	`6.06ms` from Dallas, US
84.163.77.102	AS3320 Deutsche Telekom AG	`1.62ms` from Frankfurt am Main, DE
125.88.74.214	AS4134 CHINANET-BACKBONE	`3.05ms` from Guangzhou, CN
5.70.213.198	AS5607 Sky UK Limited	`11.25ms` from London, GB
137.25.44.70	AS20115 Charter Communications LLC	`6.35ms` from Los Angeles, US
87.235.115.134	AS12430 VODAFONE ESPANA S.A.U.	`11.54ms` from Madrid, ES
142.167.152.230	AS855 Bell Canada	`15.06ms` from Montreal, CA
169.57.208.22	AS36351 IBM Cloud	`1.22ms` from Osasco, BR
1.158.103.54	AS1221 Telstra Limited	`2.36ms` from Sydney, AU
83.235.72.6	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.51ms` from Athens, GR
213.204.124.230	AS39010 TerraNet sal	`3.73ms` from Beirut, LB
142.244.206.134	AS3359 University of Alberta	`5.49ms` from Calgary, CA
75.41.117.198	AS7018 AT&T Enterprises, LLC	`2.73ms` from Chicago, US
98.28.24.6	AS10796 Charter Communications Inc	`9.20ms` from Columbus, US
80.129.222.70	AS3320 Deutsche Telekom AG	`10.98ms` from Frankfurt am Main, DE
103.140.156.102	AS136744 DREAM POWER TECHNOLOGY LIMITED	`0.75ms` from Hong Kong, HK
192.143.82.214	AS37611 AFRIHOST SP (PTY) LTD	`14.38ms` from Johannesburg, ZA
35.234.157.150	AS396982 Google LLC	`0.11ms` from London, GB
35.211.108.22	AS15169 Google LLC	`0.17ms` from Moncks Corner, US
167.63.251.230	AS6057 Administracion Nacional de Telecomunicaciones	`1.80ms` from Montevideo, UY
178.234.150.54	AS12389 PJSC Rostelecom	`8.49ms` from Moscow, RU
69.20.116.6	AS27357 Rackspace Hosting	`0.34ms` from Ashburn, US
49.49.52.166	AS45758 Triple T Broadband Public Company Limited	`8.88ms` from Bangkok, TH

Traceroute

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

traceroute -a -n -q1 -f7 186.237.18.81

traceroute to 186.237.18.81 (186.237.18.81): 64 hops max, 52 byte packets

7 [AS263004] 186.237.18.81 2.368 ms

Measurement taken from

IPinfo ProbeNet in Chapeco, BR

On January 19th 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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