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

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
99.83.223.72	AS16509 Amazon.com, Inc.	`0.04ms` from Bangkok, TH
139.30.241.232	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`8.01ms` from Berlin, DE
92.81.73.56	AS9050 Orange Romania S.A.	`13.77ms` from Bucharest, RO
186.129.96.136	AS22927 Telefonica de Argentina	`2.49ms` from Buenos Aires, AR
122.171.250.24	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.62ms` from Chennai, IN
37.102.114.184	AS1267 WIND TRE S.P.A.	`6.25ms` from Crotone, IT
122.161.153.216	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.58ms` from Delhi, IN
109.78.166.184	AS15502 Vodafone Ireland Limited	`1.65ms` from Dublin, IE
34.40.94.184	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
103.170.26.8	AS399606 Imaging Bay, Inc.	`0.16ms` from Hong Kong, HK
193.138.134.72	AS49223 EVEREST TV AND RADIO COMPANY LLC	`4.50ms` from Kyiv, UA
114.67.107.104	AS4811 China Telecom (Group)	`3.73ms` from Shanghai, CN
179.213.196.24	AS28573 Claro NXT Telecomunicacoes Ltda	`3.54ms` from São Paulo, BR
62.149.190.136	AS31034 Aruba S.p.A.	`0.27ms` from Arezzo, IT
44.212.38.168	AS14618 Amazon.com, Inc.	`0.47ms` from Ashburn, US
77.11.17.152	AS6805 Telefonica Germany GmbH & Co.OHG	`2.41ms` from Berlin, DE
147.91.181.168	AS13092 Akademska mreza Republike Srbije - AMRES	`10.56ms` from Budapest, HU
104.63.163.72	AS7018 AT&T Enterprises, LLC	`12.07ms` from Dallas, US
168.172.64.168	AS2018 TENET (The UNINET Project)	`2.33ms` from Johannesburg, ZA
83.43.93.248	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.29ms` from Madrid, ES
83.55.68.216	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.96ms` from Madrid, ES
5.95.74.88	AS30722 Fastweb SpA	`8.40ms` from Milan, IT
170.200.184.8	AS24182 Interpublic GIS	`0.93ms` from Mumbai, IN
90.179.2.136	AS5610 O2 Czech Republic, a.s.	`4.64ms` from Prague, CZ
125.152.68.152	AS4766 Korea Telecom	`1.87ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 -m8 187.31.0.1

traceroute to 187.31.0.1 (187.31.0.1): 8 hops max, 52 byte packets

4 [AS3257] 199.229.230.101 6.704 ms

5 [AS3257] 213.200.112.194 17.816 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Tulsa, US

On March 13th 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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