189.91.32.0/23

AS28203 · Webcenter Sist Prest de Servicos de Informatica

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Brazil
Domain	webcenter.com.br
ASN	AS28203
Registry	LACNIC
ID	RBA14

WHOIS Details

inetnum:     189.91.32.0/24
aut-num:     AS28203
abuse-c:     RBA2
owner:       Webcenter Sistemas - Prest. Servic Informatica Ltd
ownerid:     05.936.319/0001-47
responsible: Ricardo Buchalla Auada
country:     BR
owner-c:     RBA2
tech-c:      RBA2
inetrev:     189.91.32.0/24
nserver:     gaivota.birdsnet.com.br
nsstat:      20230310 AA
nslastaa:    20230310
nserver:     pelicano.birdsnet.com.br
nsstat:      20230310 AA
nslastaa:    20230310
created:     20110905
changed:     20130307
inetnum-up:  189.91.32.0/20

nic-hdl-br:  RBA2
person:      Ricardo Buchalla Auada
e-mail:      registro@webcenter.com.br
country:     BR
created:     19971222
changed:     20221109

Nearby Ranges

BGP prefixes that overlap with 189.91.0.0/16

Range	ASN	Company	Num of IPs
189.91.64.0/19	AS17222	MUNDIVOX DO BRASIL LTDA	8,192
189.91.0.0/19	AS28202	Rede Brasileira de Comunicacao S/A	8,192
189.91.96.0/19	AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	8,192
189.91.208.0/20	AS10938	AGENCIA ESTADUAL DE TECNOLOGIA DA INFORMACAO - ATI	4,096
189.91.144.0/20	AS264485	M. COELHO M. LIMA SERVICOS DE TELECOMUNICACAO - ME	4,096
189.91.128.0/20	AS28205	Ibituruna TV por assinatura S/C Ltda	4,096
189.91.176.0/20	AS28207	Teleon Telecomunicaçoes Ltda	4,096
189.91.192.0/20	AS28343	UNIFIQUE TELECOMUNICACOES S/A	4,096
189.91.224.0/20	AS28668	Desktop Sigmanet Comunicação Multimídia SA	4,096
189.91.240.0/20	AS28668	Desktop Sigmanet Comunicação Multimídia SA	4,096
189.91.48.0/20	AS28204	Keraxweb Serviços de Int. e Internet Ltda	4,096
189.91.40.0/21	AS28203	Webcenter Sistemas - Prest. Servic Informatica Ltd	2,048
189.91.164.0/22	AS271507	VIRTUAL CONECT LTDA	1,024
189.91.172.0/22	AS271300	LOGIN PROVEDOR DE INTERNET LTDA	1,024
189.91.36.0/22	AS28203	Webcenter Sistemas - Prest. Servic Informatica Ltd	1,024
189.91.171.0/24	AS271584	ALEXSANDRA DE OLIVEIRA LIMA	256

Hosted domains

There are 611 domain names hosted across 26 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
189.91.33.162	molybras.com.br	345
189.91.33.90	retificalopes.com.br	153
189.91.33.169	connexion.net.br	23
189.91.32.18	reguspatoff.com.br	19
189.91.32.13	nvilar.com.br	18
189.91.33.13	alugueldecompressores.com.br	8
189.91.32.61	servicedigit.com.br	8
189.91.33.14	winti.com.br	5
189.91.33.18	sireadvogados.com.br	5
189.91.33.19	praiadeboicucanga.com.br	5
189.91.32.45	cumaruspgolf.com	4
189.91.32.40	mizunoinfinity.com.br	3
189.91.32.68	ciacontabil.net.br	2
189.91.33.147	vivonolollabr.com.br	2
189.91.32.94	giantlog.com.br	2
189.91.33.84	sistemacaio.com.br	2
189.91.32.56	biscoitostriunfo.com.br	2
189.91.33.79	confortinicorretora.com.br	2
189.91.33.78	andson.com.br	1
189.91.32.249	antal.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

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

IP Address	ASN	Details
189.91.32.8	AS28203 Webcenter Sist Prest de Servicos de Informatica	`0.29ms` from São Paulo, BR
189.91.33.254	AS28203 Webcenter Sist Prest de Servicos de Informatica	`0.29ms` 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
223.149.46.7	AS4134 CHINANET-BACKBONE	`7.28ms` from Changsha, CN
135.119.89.87	AS8075 Microsoft Corporation	`0.17ms` from Des Moines, US
86.143.131.55	AS2856 British Telecommunications PLC	`2.94ms` from London, GB
107.174.79.215	AS36352 HostPapa	`0.35ms` from Los Angeles, US
183.165.7.55	AS4134 CHINANET-BACKBONE	`9.87ms` from Nanchang, CN
94.251.31.39	AS21127 Joint Stock Company TransTeleCom	`1.09ms` from Novosibirsk, RU
194.36.221.39	AS60032 Coriolis Telecom SAS	`1.13ms` from Paris, FR
54.177.63.151	AS16509 Amazon.com, Inc.	`0.18ms` from San Jose, US
67.193.210.135	AS7992 Cogeco Connexion Inc.	`9.84ms` from Toronto, CA
173.88.1.23	AS10796 Charter Communications Inc	`13.39ms` from Cleveland, US
73.153.203.71	AS7922 Comcast Cable Communications, LLC	`6.22ms` from Denver, US
59.34.202.135	AS4134 CHINANET-BACKBONE	`9.22ms` from Guangzhou, CN
113.125.228.39	AS58519 Cloud Computing Corporation	`0.32ms` from Guiyang, CN
221.226.116.247	AS4134 CHINANET-BACKBONE	`1.07ms` from Nanjing, CN
3.36.175.71	AS16509 Amazon.com, Inc.	`0.18ms` from Seoul, KR
78.83.52.167	AS29580 A1 Bulgaria EAD	`1.07ms` from Sofia, BG
195.84.92.119	AS1257 Tele2 Sverige AB	`0.63ms` from Stockholm, SE
23.219.68.55	AS16625 Akamai Technologies, Inc.	`0.13ms` from Tokyo, JP
68.83.178.71	AS7922 Comcast Cable Communications, LLC	`7.95ms` from Ashburn, US
98.216.128.103	AS7922 Comcast Cable Communications, LLC	`10.01ms` from Boston, US
139.155.18.103	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.82ms` from Chengdu, CN
12.52.161.135	AS7018 AT&T Enterprises, LLC	`7.49ms` from Chicago, US
52.252.177.199	AS8075 Microsoft Corporation	`0.27ms` from Chicago, US
162.235.61.247	AS7018 AT&T Enterprises, LLC	`4.46ms` from Dallas, US
198.181.254.7	AS46887 Crown Castle Fiber LLC	`5.24ms` 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 189.91.33.81

traceroute to 189.91.33.81 (189.91.33.81): 64 hops max, 52 byte packets

2 [] 31.44.186.150 0.883 ms

3 *

4 [AS22356] 177.190.108.42 172.433 ms

5 [AS28203] 189.91.33.81 169.337 ms

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales