187.31.4.0/24

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 187.31.4.0/24

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
170.203.45.8	AS399065 Dixie EPA	`8.02ms` from Atlanta, US
160.179.220.232	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.87ms` from Casablanca, MA
72.249.172.8	AS17378 TierPoint, LLC	`0.55ms` from Dallas, US
103.169.129.200	AS142342 PT Media Akses Data	`0.33ms` from Jakarta, ID
109.161.55.136	AS12389 PJSC Rostelecom	`11.12ms` from Moscow, RU
88.186.184.248	AS12322 Free SAS	`10.39ms` from Paris, FR
72.201.233.120	AS22773 Cox Communications Inc.	`4.13ms` from Phoenix, US
189.188.146.88	AS8151 UNINET	`4.10ms` from Santiago de Queretaro, MX
27.236.2.216	AS4766 Korea Telecom	`8.31ms` from Seoul, KR
177.207.190.232	AS18881 TELEFÔNICA BRASIL S.A	`0.83ms` from São Paulo, BR
178.164.155.24	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`0.97ms` from Budapest, HU
54.170.161.56	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
176.124.178.8	AS9009 M247 Europe SRL	`0.25ms` from Frankfurt am Main, DE
86.103.200.72	AS13101 TNG Stadtnetz GmbH	`2.66ms` from Hamburg, DE
85.49.146.56	AS12479 Orange Espagne SA	`11.68ms` from Madrid, ES
142.196.165.88	AS33363 Charter Communications, Inc	`4.25ms` from Orlando, US
60.99.4.8	AS17676 SoftBank Corp.	`3.90ms` from Osaka, JP
151.157.130.8	AS224 SIKT - KUNNSKAPSSEKTORENS TJENESTELEVERANDOR	`1.05ms` from Oslo, NO
176.181.234.120	AS5410 Bouygues Telecom SA	`8.08ms` from Paris, FR
151.28.146.56	AS1267 WIND TRE S.P.A.	`2.75ms` from Rome, IT
94.181.45.216	AS41661 JSC "ER-Telecom Holding"	`12.64ms` from Samara, RU
72.153.255.216	AS8075 Microsoft Corporation	`0.60ms` from San Jose, US
63.231.33.184	AS209 CenturyLink Communications, LLC	`8.57ms` from Seattle, US
110.240.193.248	AS4837 CHINA UNICOM China169 Backbone	`7.95ms` from Tianjin, CN
109.138.240.104	AS5432 Proximus NV	`2.16ms` from Brussels, BE

Traceroute

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

traceroute -a -n -q1 -f3 -m8 187.31.4.232

traceroute to 187.31.4.232 (187.31.4.232): 8 hops max, 52 byte packets

3 [AS3257] 98.124.173.73 0.84 ms

4 [AS3257] 141.136.105.169 32.765 ms

5 [AS32097] 69.197.186.122 32.957 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Denver, US

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.

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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