181.221.224.0/20

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:     181.216.0.0/13
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:     181.216.0.0/13
nserver:     ns7.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
nserver:     ns8.virtua.com.br
nsstat:      20250213 AA
nslastaa:    20250213
created:     20140602
changed:     20220615

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

Nearby Ranges

BGP prefixes that overlap with 181.221.0.0/16

No nearby ranges found.

Hosted domains

There are 5 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
181.221.238.12	8r0w.tech	1
181.221.238.148	advaurora.com.br	1
181.221.238.229	8r0w.com.br	1
181.221.238.150	consensu.com.br	1
181.221.236.83	suportefmp.com.br	1

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

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

IP Address	ASN	Details
181.221.234.60	AS28573 Claro NXT Telecomunicacoes Ltda	`3.48ms` from Curitiba, BR
181.221.224.2	AS28573 Claro NXT Telecomunicacoes Ltda	`5.18ms` from Curitiba, BR
181.221.239.19	AS28573 Claro NXT Telecomunicacoes Ltda	`5.36ms` from Curitiba, BR
181.221.237.6	AS28573 Claro NXT Telecomunicacoes Ltda	`4.60ms` from Curitiba, BR
181.221.232.7	AS28573 Claro NXT Telecomunicacoes Ltda	`3.67ms` from Curitiba, BR
181.221.236.4	AS28573 Claro NXT Telecomunicacoes Ltda	`4.72ms` from Curitiba, BR
181.221.229.6	AS28573 Claro NXT Telecomunicacoes Ltda	`4.72ms` from Curitiba, BR
181.221.227.8	AS28573 Claro NXT Telecomunicacoes Ltda	`7.47ms` from Curitiba, BR
181.221.225.3	AS28573 Claro NXT Telecomunicacoes Ltda	`3.78ms` from Curitiba, BR
181.221.238.45	AS28573 Claro NXT Telecomunicacoes Ltda	`4.72ms` from Curitiba, BR
181.221.228.6	AS28573 Claro NXT Telecomunicacoes Ltda	`4.41ms` from Curitiba, BR
181.221.230.3	AS28573 Claro NXT Telecomunicacoes Ltda	`3.91ms` from Curitiba, BR
181.221.226.227	AS28573 Claro NXT Telecomunicacoes Ltda	`7.09ms` 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
136.226.17.52	AS22616 ZSCALER, INC.	`0.38ms` from Ashburn, US
74.63.172.132	AS13649 Flexential Colorado Corp.	`0.42ms` from Denver, US
69.176.135.116	AS10423 STELLAR Broadband	`3.25ms` from Detroit, US
79.211.112.84	AS3320 Deutsche Telekom AG	`2.73ms` from Duesseldorf, DE
71.58.208.244	AS7922 Comcast Cable Communications, LLC	`19.95ms` from Flint, US
76.126.3.196	AS7922 Comcast Cable Communications, LLC	`2.59ms` from Fremont, US
154.198.232.132	AS40065 CNSERVERS LLC	`0.51ms` from Hong Kong, HK
1.99.84.132	AS4766 Korea Telecom	`1.95ms` from Incheon, KR
41.162.94.164	AS36937 Liquid Telecommunications South Africa (Pty) Ltd	`7.95ms` from Johannesburg, ZA
145.40.113.228	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.30ms` from London, GB
73.66.18.164	AS7922 Comcast Cable Communications, LLC	`10.68ms` from Los Angeles, US
93.186.63.4	AS49531 NetCom-R LLC	`0.80ms` from Moscow, RU
51.13.144.68	AS8075 Microsoft Corporation	`6.75ms` from Oslo, NO
13.211.136.196	AS16509 Amazon.com, Inc.	`0.60ms` from Sydney, AU
20.232.227.132	AS8075 Microsoft Corporation	`0.37ms` from Ashburn, US
100.21.35.100	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
173.25.195.228	AS30036 Mediacom Communications Corp	`11.62ms` from Chicago, US
195.94.75.212	AS8469 CANCOM Managed Services GmbH	`0.36ms` from Frankfurt am Main, DE
218.39.70.4	AS9318 SK Broadband Co Ltd	`1.37ms` from Incheon, KR
190.129.45.212	AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA	`15.88ms` from La Paz, BO
86.156.10.164	AS2856 British Telecommunications PLC	`2.39ms` from London, GB
149.14.133.180	AS174 Cogent Communications, LLC	`0.15ms` from Milan, IT
148.137.236.100	AS7150 Commonwealth University of Pennsylvania	`8.58ms` from Morris Plains, US
94.83.74.180	AS3269 Telecom Italia S.p.A.	`4.51ms` from Naples, IT
216.48.127.20	AS17378 TierPoint, LLC	`1.35ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f2 -m12 181.221.235.60

traceroute to 181.221.235.60 (181.221.235.60): 12 hops max, 52 byte packets

2 [] 185.1.160.119 2.749 ms

3 *

4 *

5 *

6 [AS4230] 200.230.220.129 193.024 ms

7 [AS4230] 200.230.24.64 189.178 ms

8 [AS4230] 200.247.179.2 188.265 ms

9 [AS28573] 179.223.192.102 189.672 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

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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