187.23.72.0/21

AS28573 · Claro NXT Telecomunicacoes Ltda

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Summary

Country	Brazil
Domain	claro.com.br
ASN	AS28573
Registry	LACNIC
ID	GSV

WHOIS Details

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

inetnum:     187.20.0.0/14
aut-num:     AS28573
abuse-c:     GRSVI
owner:       Claro NXT Telecomunicacoes Ltda
ownerid:     66.970.229/0001-67
responsible: Suporte Redes
owner-c:     GRSVI
tech-c:      GRSVI
inetrev:     187.20.0.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.20.64.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.20.128.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.20.192.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.21.0.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.21.64.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.21.128.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.21.192.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.22.0.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.22.64.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.22.128.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.22.192.0/18
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.0.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.8.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.16.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.24.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.32.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.40.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.48.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.56.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.64.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.72.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.80.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.88.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.96.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.104.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.112.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.120.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.128.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.136.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.144.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.152.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.160.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.168.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.176.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.184.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.192.0/19
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
inetrev:     187.23.224.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.232.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
nserver:     ns8.virtua.com.br
nsstat:      20250212 AA
nslastaa:    20250212
inetrev:     187.23.240.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
inetrev:     187.23.248.0/21
nserver:     ns7.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
nserver:     ns8.virtua.com.br
nsstat:      20250211 AA
nslastaa:    20250211
created:     20081003
changed:     20220615

nic-hdl-br:  GRSVI
person:      Grupo de Seguran�a V�rtua
created:     20080512
changed:     20230704

Nearby Ranges

BGP prefixes that overlap with 187.23.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
187.23.73.161	AS28573 Claro NXT Telecomunicacoes Ltda	`4.08ms` from Curitiba, BR
187.23.72.104	AS28573 Claro NXT Telecomunicacoes Ltda	`4.07ms` from Curitiba, 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
172.208.88.5	AS8075 Microsoft Corporation	`1.26ms` from Ashburn, US
75.100.79.149	AS4181 TDS TELECOM	`8.35ms` from Atlanta, US
179.36.211.197	AS22927 Telefonica de Argentina	`2.64ms` from Buenos Aires, AR
45.164.9.245	AS268585 JULIANA N CORDEIRO DE LIMA SERVICOS DE COMUNICACO	`12.15ms` from Fortaleza, BR
201.150.17.5	AS61825 GITEL TELECOMUNICACOES	`4.13ms` from Fortaleza, BR
109.86.127.21	AS13188 CONTENT DELIVERY NETWORK LTD	`0.78ms` from Kyiv, UA
175.169.65.149	AS4837 CHINA UNICOM China169 Backbone	`13.21ms` from Liaoyang, CN
71.13.198.181	AS20115 Charter Communications LLC	`9.04ms` from Milwaukee, US
174.88.243.213	AS577 Bell Canada	`5.08ms` from Montreal, CA
107.10.108.53	AS10796 Charter Communications Inc	`7.17ms` from Mount Prospect, US
58.241.9.165	AS4837 CHINA UNICOM China169 Backbone	`4.57ms` from Nanjing, CN
180.145.170.53	AS17511 OPTAGE Inc.	`1.68ms` from Osaka, JP
114.166.131.37	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.32ms` from Osaka, JP
134.79.120.165	AS3671 SLAC National Accelerator Laboratory	`0.95ms` from San Jose, US
50.219.46.213	AS7922 Comcast Cable Communications, LLC	`1.29ms` from Seattle, US
203.242.158.165	AS7557 Korea Trade Network	`1.37ms` from Seoul, KR
123.111.90.69	AS9318 SK Broadband Co Ltd	`1.83ms` from Seoul, KR
58.34.111.5	AS4812 China Telecom (Group)	`3.02ms` from Shanghai, CN
15.134.59.5	AS16509 Amazon.com, Inc.	`0.16ms` from Sydney, AU
200.3.177.53	AS26317 Lisa Communications Ltd	`12.36ms` from Willemstad, CW
62.171.82.133	AS8821 WWZ Telekom AG (TELEZUG)	`1.11ms` from Zuerich, CH
162.241.203.37	AS19871 Network Solutions, LLC	`0.88ms` from Atlanta, US
35.87.42.229	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
156.193.160.69	AS8452 TE-AS	`4.69ms` from Cairo, EG
172.232.115.229	AS63949 Akamai Connected Cloud	`0.81ms` from Chennai, IN

Traceroute

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

traceroute -a -n -q1 -m4 187.23.75.192

traceroute to 187.23.75.192 (187.23.75.192): 4 hops max, 52 byte packets

1 [AS202422] 45.80.215.2 0.161 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Paris, FR

On December 28th 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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