186.237.18.0/23

AS263004 · Cassiano Zanon - CZNET Provedor de Internet

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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:       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:      20250914 AA
nslastaa:    20250914
nserver:     ns2.cznet.com.br
nsstat:      20250914 AA
nslastaa:    20250914
created:     20120518
changed:     20151020

nic-hdl-br:  CAZAN8
person:      Cassiano Zanon
e-mail:      dti@cznet.net.br
country:     BR
created:     20071219
changed:     20201223

nic-hdl-br:  ELNET50
person:      Elevate Network
e-mail:      gustavo@elevatenetwork.com.br
country:     BR
created:     20210422
changed:     20250228

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

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

IP Address	ASN	Details
186.237.18.81	AS263004 Cassiano Zanon - CZNET Provedor de Internet	`14.90ms` from Osasco, 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
181.137.134.7	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.64ms` from Bogota, CO
52.247.141.119	AS8075 Microsoft Corporation	`0.68ms` from Boydton, US
178.164.181.151	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`3.95ms` from Budapest, HU
71.71.130.167	AS11426 Charter Communications Inc	`6.37ms` from Charlotte, US
3.148.147.231	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
34.60.122.103	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
91.40.198.55	AS3320 Deutsche Telekom AG	`8.59ms` from Frankfurt am Main, DE
90.208.148.23	AS5607 Sky UK Limited	`6.09ms` from London, GB
70.93.34.167	AS20001 Charter Communications Inc	`10.02ms` from Los Angeles, US
68.5.1.215	AS22773 Cox Communications Inc.	`5.81ms` from Los Angeles, US
36.25.41.167	AS4134 CHINANET-BACKBONE	`6.29ms` from Ningbo, CN
195.225.23.231	AS25148 ORANGE BUSINESS DIGITAL NORWAY AS	`0.68ms` from Oslo, NO
185.214.192.23	AS205164 AIR-Optic Solutions s.r.o.	`10.65ms` from Prague, CZ
123.133.97.151	AS4837 CHINA UNICOM China169 Backbone	`3.11ms` from Qingdao, CN
45.139.96.39	AS209902 RAI WAY S.P.A.	`1.34ms` from Rome, IT
121.173.31.39	AS4766 Korea Telecom	`1.21ms` from Seoul, KR
115.196.93.135	AS4134 CHINANET-BACKBONE	`6.20ms` from Shanghai, CN
119.244.192.199	AS2518 BIGLOBE Inc.	`5.28ms` from Tokyo, JP
121.3.152.183	AS2527 Sony Network Communications Inc.	`5.21ms` from Tokyo, JP
180.11.230.183	AS4713 NTT Communications Corporation	`3.11ms` from Tokyo, JP
142.198.226.183	AS577 Bell Canada	`1.46ms` from Toronto, CA
178.236.108.247	AS58224 Iran Telecommunication Company PJS	`17.38ms` from Yerevan, AM
47.135.204.103	AS20115 Charter Communications LLC	`9.83ms` from Atlanta, US
117.254.71.247	AS9829 National Internet Backbone	`15.85ms` from Bengaluru, IN
52.251.15.231	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US

Traceroute

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

traceroute -a -n -q1 -f9 186.237.18.15

traceroute to 186.237.18.15 (186.237.18.15): 64 hops max, 52 byte packets

9 [AS263004] 186.237.18.15 19.586 ms

Measurement taken from

IPinfo ProbeNet in Sao Paulo, BR

On September 11th 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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