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
65.199.1.72	AS701 Verizon Business	`0.73ms` from Ashburn, US
39.97.88.88	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.13ms` from Beijing, CN
54.203.29.136	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
67.172.138.40	AS7922 Comcast Cable Communications, LLC	`5.96ms` from Cheyenne, US
71.201.179.136	AS7922 Comcast Cable Communications, LLC	`6.17ms` from Chicago, US
93.203.141.40	AS3320 Deutsche Telekom AG	`2.63ms` from Duesseldorf, DE
164.122.8.168	AS668 United States Department of Defense (DoD)	`0.62ms` from Honolulu, US
193.176.250.8	AS56932 CHP Poddubny Sergey Valentynovich	`6.17ms` from Kyiv, UA
108.53.227.184	AS701 Verizon Business	`1.63ms` from New York City, US
132.148.153.24	AS26496 GoDaddy.com, LLC	`1.19ms` from Phoenix, US
188.242.174.168	AS35807 SkyNet Ltd.	`0.85ms` from Saint Petersburg, RU
66.115.227.24	AS13576 SDN Communications	`0.97ms` from Sioux Falls, US
20.53.247.72	AS8075 Microsoft Corporation	`0.69ms` from Sydney, AU
69.138.231.24	AS7922 Comcast Cable Communications, LLC	`8.67ms` from Ashburn, US
195.221.118.248	AS2200 Renater	`10.99ms` from Paris, FR
76.133.180.248	AS7922 Comcast Cable Communications, LLC	`5.90ms` from San Jose, US
18.139.240.200	AS16509 Amazon.com, Inc.	`0.15ms` from Singapore, SG
65.94.123.120	AS577 Bell Canada	`5.36ms` from Toronto, CA
76.229.175.72	AS7018 AT&T Enterprises, LLC	`10.70ms` from Atlanta, US
120.60.50.152	AS9829 National Internet Backbone	`12.69ms` from Chennai, IN
89.150.150.8	AS203953 Hiper A/S	`1.37ms` from Copenhagen, DK
109.56.212.200	AS44034 Hi3G Access AB	`6.90ms` from Copenhagen, DK
186.68.204.184	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`1.56ms` from Guayaquil, EC
198.59.139.56	AS14174 North Central Kansas Community Network Co.	`6.78ms` from Kansas City, US
80.39.30.168	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.17ms` from Madrid, ES

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 187.31.0.181

traceroute to 187.31.0.181 (187.31.0.181): 9 hops max, 52 byte packets

4 [AS3257] 173.205.47.57 106.104 ms

5 *

6 [AS3257] 198.47.105.10 143.692 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Rio de Janeiro, BR

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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