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	AS13999	Mega Cable, S.A. de C.V.	524,288
187.240.0.0/13	AS262916	Mega Cable, S.A. de C.V.	524,288
187.24.0.0/14	AS22085	Claro S/A	262,144
187.88.0.0/14	AS26599	TELEFÔNICA BRASIL S.A	262,144
187.80.0.0/14	AS26615	TIM S/A	262,144
187.112.0.0/14	AS18881	TELEFÔNICA BRASIL S.A	262,144
187.68.0.0/14	AS22085	Claro S/A	262,144
187.96.0.0/14	AS26615	TIM S/A	262,144
187.186.0.0/15	AS13591	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.248.0.0/15	AS32098	IP Matrix, S.A. de C.V.	131,072
187.46.0.0/15	AS26615	TIM S/A	131,072
187.56.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.10.0.0/15	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
187.186.0.0/15	AS28530	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.50.0.0/15	AS10429	TELEFÔNICA BRASIL S.A	131,072
187.186.0.0/15	AS28537	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.74.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.34.0.0/15	AS27699	TELEFÔNICA BRASIL S.A	131,072
187.186.0.0/15	AS28533	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
187.186.0.0/15	AS28534	Mexico Red de Telecomunicaciones, S. de R.L. de C.V.	131,072
187.92.0.0/15	AS10429	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
187.8.0.0/15	AS10429	TELEFÔNICA BRASIL S.A	131,072
187.178.0.0/16	AS6503	Axtel, S.A.B. de C.V.	65,536
187.12.0.0/16	AS7738	V tal	65,536
187.125.0.0/16	AS7738	V tal	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
187.43.0.0/16	AS4230	CLARO S.A.	65,536
187.161.0.0/16	AS11888	Television Internacional, S.A. de C.V.	65,536
187.249.0.0/16	AS32098	IP Matrix, S.A. de C.V.	65,536
187.48.0.0/16	AS26615	TIM S.A.	65,536
187.76.0.0/16	AS7738	V tal	65,536
187.161.0.0/16	AS265594	Television Internacional, S.A. de C.V.	65,536
187.72.0.0/16	AS16735	ALGAR TELECOM S/A	65,536
187.160.0.0/16	AS11888	Television Internacional, S.A. de C.V.	65,536
187.203.0.0/16	AS29987	UNINET	65,536
187.203.0.0/16	AS8151	UNINET	65,536
187.18.128.0/17	AS28220	Videomar Rede Nordeste S/A	32,768
187.18.128.0/17	AS28270	Videomar Rede Nordeste S/A	32,768
187.44.128.0/17	AS28186	ITS TELECOMUNICACOES LTDA	32,768
187.121.0.0/17	AS19182	TELEFÔNICA BRASIL S.A	32,768
187.19.128.0/17	AS28126	BRISANET SERVICOS DE TELECOMUNICACOES S.A	32,768
187.17.64.0/18	AS19089	Universo Online S.A.	16,384
187.116.64.0/18	AS27699	TELEFÔNICA BRASIL S.A	16,384
187.1.192.0/18	AS26599	TELEFÔNICA BRASIL 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	zylog.in	4
187.31.149.65	tvodia.com.br	1

Hosted domains API

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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
104.193.125.112	AS393725 Valence Health, Inc.	`0.77ms` from Ashburn, US
88.135.111.240	AS7029 Windstream Communications LLC	`0.44ms` from Ashburn, US
172.240.200.32	AS7979 Servers.com, Inc.	`0.21ms` from Ashburn, US
48.212.4.0	AS8075 Microsoft Corporation	`0.47ms` from Ashburn, US
47.162.215.0	AS5650 Frontier Communications of America, Inc.	`4.90ms` from Dallas, US
177.89.82.96	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`13.41ms` from Fortaleza, BR
64.188.72.0	AS49418 NETSHIELD LTD	`0.15ms` from Helsinki, FI
2.99.189.144	AS13285 TalkTalk Communications Limited	`8.02ms` from London, GB
149.13.210.112	AS42611 Full Fibre Limited	`1.74ms` from London, GB
78.25.155.96	AS39493 CJSC Kolomna-Sviaz TV	`3.07ms` from Moscow, RU
35.204.230.240	AS396982 Google LLC	`0.14ms` from Oudeschip, NL
82.89.143.0	AS3269 Telecom Italia S.p.A.	`6.20ms` from Rome, IT
43.200.209.32	AS16509 Amazon.com, Inc.	`0.20ms` from Seoul, KR
121.151.163.224	AS4766 Korea Telecom	`6.33ms` from Seoul, KR
124.11.20.224	AS9924 Taiwan Fixed Network, Telco and Network Service Provider.	`13.60ms` from Taipei, TW
121.61.196.16	AS4134 CHINANET-BACKBONE	`6.72ms` from Wuhan, CN
184.2.243.0	AS19901 Brightspeed	`8.26ms` from Ashburn, US
91.20.131.112	AS3320 Deutsche Telekom AG	`2.61ms` from Duesseldorf, DE
79.194.27.64	AS3320 Deutsche Telekom AG	`3.63ms` from Frankfurt am Main, DE
84.191.185.144	AS3320 Deutsche Telekom AG	`9.45ms` from Frankfurt am Main, DE
113.163.129.224	AS45899 VNPT Corp	`4.77ms` from Ho Chi Minh City, VN
197.243.16.128	AS37228 KT RWANDA NETWORK Ltd	`0.37ms` from Kigali, RW
86.160.18.80	AS2856 British Telecommunications PLC	`3.39ms` from London, GB
66.176.236.16	AS7922 Comcast Cable Communications, LLC	`4.66ms` from Miami, US
90.181.76.112	AS5610 O2 Czech Republic, a.s.	`6.65ms` from Prague, CZ

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 187.31.163.251

traceroute to 187.31.163.251 (187.31.163.251): 7 hops max, 52 byte packets

3 [AS3257] 207.162.204.205 21.571 ms

4 [AS3257] 141.136.105.169 59.3 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in San Juan, PR

On December 28th 2025

What are IP address ranges?

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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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