187.31.0.0/16

AS29987 · Sinfony6, LLC

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Summary

Country	Brazil
Domain	oi.com.br
ASN	AS29987
Registry	LACNIC
ID	CAO47

WHOIS Details

inetnum:     187.31.0.0/16
aut-num:     AS14571
abuse-c:     CSIOI
owner:       Oi S.A. - Em Recupera��o Judicial
ownerid:     76.535.764/0001-43
responsible: CONTATO ADMINISTRATIVO OI
owner-c:     COAOI
tech-c:      OIINT
inetrev:     187.31.0.0/17
nserver:     dnssec1.oiinternet.com.br
nsstat:      20240104 AA
nslastaa:    20240104
nserver:     dnssec2.oiinternet.com.br
nsstat:      20240104 AA
nslastaa:    20240104
inetrev:     187.31.128.0/17
nserver:     dnssec1.oiinternet.com.br
nsstat:      20240104 AA
nslastaa:    20240104
nserver:     dnssec2.oiinternet.com.br
nsstat:      20240104 AA
nslastaa:    20240104
created:     20081212
changed:     20240103

nic-hdl-br:  COAOI
person:      Contato Administrativo Oi
created:     20150723
changed:     20220307

nic-hdl-br:  CSIOI
person:      CSIRT OI
created:     20140127
changed:     20140127

nic-hdl-br:  OIINT
person:      Oi Internet
created:     20121218
changed:     20211104

Nearby Ranges

BGP prefixes that overlap with 187.0.0.0/8

Range	ASN	Company	Num of IPs
187.240.0.0/13	AS262916	Mega Cable, S.A. de C.V.	524,288
187.240.0.0/13	AS13999	Mega Cable, S.A. de C.V.	524,288
187.68.0.0/14	AS22085	Claro S/A	262,144
187.80.0.0/14	AS26615	TIM S/A	262,144
187.88.0.0/14	AS26599	TELEFÔNICA BRASIL S.A	262,144
187.24.0.0/14	AS22085	Claro S/A	262,144
187.96.0.0/14	AS26615	TIM S/A	262,144
187.112.0.0/14	AS18881	TELEFÔNICA BRASIL S.A	262,144
187.186.0.0/15	AS13591	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.58.0.0/15	AS18881	TELEFÔNICA BRASIL S.A	131,072
187.46.0.0/15	AS26615	TIM S/A	131,072
187.162.0.0/15	AS6503	Axtel, S.A.B. de C.V.	131,072
187.8.0.0/15	AS10429	TELEFÔNICA BRASIL S.A	131,072
187.50.0.0/15	AS10429	TELEFÔNICA BRASIL S.A	131,072
187.92.0.0/15	AS10429	TELEFÔNICA BRASIL S.A	131,072
187.248.0.0/15	AS32098	IP Matrix, S.A. de C.V.	131,072
187.186.0.0/15	AS28533	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.186.0.0/15	AS28534	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.56.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.186.0.0/15	AS28530	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.10.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.74.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.186.0.0/15	AS28532	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.186.0.0/15	AS28536	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.186.0.0/15	AS28537	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.34.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.186.0.0/15	AS28535	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.249.0.0/16	AS32098	IP Matrix, S.A. de C.V.	65,536
187.206.0.0/16	AS8151	UNINET	65,536
187.203.0.0/16	AS8151	UNINET	65,536
187.30.0.0/16	AS4230	CLARO S.A.	65,536
187.32.0.0/16	AS16735	ALGAR TELECOM S/A	65,536
187.76.0.0/16	AS7738	V tal	65,536
187.43.0.0/16	AS4230	CLARO S.A.	65,536
187.72.0.0/16	AS16735	ALGAR TELECOM S/A	65,536
187.48.0.0/16	AS26615	TIM S.A.	65,536
187.12.0.0/16	AS7738	V tal	65,536
187.161.0.0/16	AS11888	Television Internacional, S.A. de C.V.	65,536
187.161.0.0/16	AS265594	Television Internacional, S.A. de C.V.	65,536
187.203.0.0/16	AS29987	UNINET	65,536
187.178.0.0/16	AS6503	Axtel, S.A.B. de C.V.	65,536
187.160.0.0/16	AS11888	Television Internacional, S.A. de C.V.	65,536
187.125.0.0/16	AS7738	V tal	65,536
187.121.0.0/17	AS19182	TELEFÔNICA BRASIL S.A	32,768
187.18.128.0/17	AS28270	Alares Cabo Servicos de Telecomunicacoes S.A.	32,768
187.44.128.0/17	AS28186	ITS TELECOMUNICACOES LTDA	32,768
187.18.128.0/17	AS28220	Alares Cabo Servicos de Telecomunicacoes S.A.	32,768
187.19.128.0/17	AS28126	BRISANET SERVICOS DE TELECOMUNICACOES S.A	32,768
187.120.64.0/18	AS28202	MASTER S/A	16,384

Hosted domains

There are 5 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
187.31.187.17	nroxxp.net	4
187.31.149.65	tvodia.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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
85.148.227.224	AS5390 EuroNet	`1.00ms` from Amsterdam, NL
35.166.154.64	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
35.233.33.128	AS396982 Google LLC	`0.15ms` from Brussels, BE
184.154.120.16	AS32475 Internap Holding LLC	`0.96ms` from Chicago, US
52.176.44.192	AS8075 Microsoft Corporation	`0.33ms` from Des Moines, US
90.200.173.96	AS5607 Sky UK Limited	`4.93ms` from Erith, GB
113.87.132.192	AS4134 CHINANET-BACKBONE	`1.36ms` from Guangzhou, CN
1.227.184.32	AS9318 SK Broadband Co Ltd	`1.52ms` from Incheon, KR
20.87.58.224	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA
131.145.11.192	AS8075 Microsoft Corporation	`0.24ms` from London, GB
18.207.176.128	AS14618 Amazon.com, Inc.	`0.61ms` from Reston, US
80.105.244.0	AS3269 Telecom Italia S.p.A.	`1.19ms` from Rome, IT
35.198.48.48	AS396982 Google LLC	`0.10ms` from Sao Paulo, BR
121.189.162.112	AS4766 Korea Telecom	`3.83ms` from Seoul, KR
175.182.237.0	AS4780 Digital United Inc.	`0.38ms` from Taipei, TW
27.23.229.240	AS4134 CHINANET-BACKBONE	`3.70ms` from Wuhan, CN
148.187.108.176	AS559 SWITCH	`3.07ms` from Zuerich, CH
154.247.243.160	AS36947 Telecom Algeria	`13.13ms` from Algiers, DZ
77.170.172.240	AS1136 KPN B.V.	`1.55ms` from Amsterdam, NL
213.160.188.128	AS6855 Slovak Telekom, a.s.	`1.80ms` from Bratislava, SK
5.187.194.48	AS5483 Magyar Telekom Plc.	`3.87ms` from Budapest, HU
24.211.155.64	AS11426 Charter Communications Inc	`12.84ms` from Charlotte, US
94.177.245.128	AS200185 Aruba S.p.A.	`0.38ms` from Frankfurt am Main, DE
41.25.65.128	AS36994 Vodacom	`2.18ms` from Johannesburg, ZA
88.88.190.208	AS2119 Telenor Norge AS	`5.95ms` from Oslo, NO

Traceroute

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

traceroute -a -n -q1 -f3 -m7 187.31.162.174

traceroute to 187.31.162.174 (187.31.162.174): 7 hops max, 52 byte packets

3 [AS3257] 208.97.209.217 1.781 ms

4 [AS3257] 89.149.184.234 10.614 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Chicago, US

On January 30th 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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