187.31.0.0/24

AS29987 · Sinfony6, LLC

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Summary

Country	Brazil
Domain	oi.com.br
ASN	AS29987
Parent Range	187.31.0.0/16
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

Overlapping Ranges

BGP prefixes that contain 187.31.0.0/24

Range	ASN	Company	Num of IPs
187.31.0.0/16	AS29987	Oi S.A. - Em Recuperação Judicial	65,536

Nearby Ranges

BGP prefixes that overlap with 187.31.0.0/16

Range	ASN	Company	Num of IPs
187.31.0.0/16	AS29987	Oi S.A. - Em Recuperação Judicial	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
71.135.83.88	AS7018 AT&T Enterprises, LLC	`7.19ms` from Atlanta, US
39.97.88.88	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.97ms` from Beijing, CN
20.82.245.40	AS8075 Microsoft Corporation	`0.17ms` from Dublin, IE
87.129.74.152	AS3320 Deutsche Telekom AG	`0.67ms` from Hamburg, DE
31.15.212.24	AS3212 Telemach Slovenija d.o.o.	`2.54ms` from Ljubljana, SI
203.34.109.56	AS63850 QRHUB PTY LTD T/A Entrust ICT	`1.67ms` from Melbourne, AU
221.103.62.216	AS17676 SoftBank Corp.	`4.05ms` from Osaka, JP
178.67.22.40	AS12389 PJSC Rostelecom	`1.30ms` from Saint Petersburg, RU
205.164.54.24	AS18779 EGIHosting	`0.13ms` from Santa Clara, US
221.158.240.168	AS4766 Korea Telecom	`4.62ms` from Seoul, KR
180.163.116.88	AS4811 China Telecom (Group)	`1.74ms` from Shanghai, CN
219.104.136.168	AS2527 Sony Network Communications Inc.	`2.18ms` from Tokyo, JP
135.135.37.40	AS4181 TDS TELECOM	`7.58ms` from Atlanta, US
84.61.67.40	AS3209 Vodafone GmbH	`11.60ms` from Berlin, DE
47.190.156.104	AS5650 Frontier Communications of America, Inc.	`1.65ms` from Dallas, US
87.143.123.104	AS3320 Deutsche Telekom AG	`10.17ms` from Frankfurt am Main, DE
1.95.148.8	AS55990 Huawei Cloud Service data center	`0.90ms` from Guiyang, CN
180.75.183.104	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`6.00ms` from Kuala Lumpur, MY
177.57.227.136	AS22085 Claro S/A	`17.94ms` from Rio de Janeiro, BR
179.250.138.40	AS26615 TIM S/A	`5.98ms` from Sao Paulo, BR
179.213.196.24	AS28573 Claro NXT Telecomunicacoes Ltda	`3.91ms` from Sao Paulo, BR
73.140.153.56	AS7922 Comcast Cable Communications, LLC	`4.69ms` from Seattle, US
61.110.124.152	AS4670 Shinbiro	`1.30ms` from Seoul, KR
83.251.88.40	AS1257 Tele2 Sverige AB	`5.00ms` from Stockholm, SE
54.178.62.88	AS16509 Amazon.com, Inc.	`0.20ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f4 -m9 187.31.0.0

traceroute to 187.31.0.0 (187.31.0.0): 9 hops max, 52 byte packets

4 [] 116.119.164.78 148.651 ms

5 [AS3257] 154.14.74.21 139.424 ms

6 [AS3257] 89.149.184.234 265.28 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Kolkata, IN

On January 9th 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.

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