Data as of Nov 14, 2026

187.31.0.0/16

5,632 anonymizer addresses · 8.6%8 residential-proxy exits · 30 days

Oi S.A. - Em Recuperacao Judicial

Announcement

this exact prefix

No RPKI

Announced by

AS14571

Type

Residential

65% of it

Recent change

New origin Jun 2026

from AS29987 Sinfony6, LLC

Residential-proxy exits

Proxy exits

0.01% of its addresses · 30 days

Spread

1 of 256

/24s with at least one exit

Providers

selling exits here

Oct 15, 2026 – Nov 13, 2026

Exits seen per day

1.7K observations

Proxy providers listing exits

711Proxy
Ake.net
B2Proxy
BottingTools
Decodo
EZProxies
FastProxy
FlashProxy
HELODATA
IPFly
IPPeak
IPROCKET_BASIC
IPRoyal
KocerRoxy
LemonBright
LudaxProxy
NiuProxy
NovaProxy
Novada
Oxylabs
Proxiware
PuraRoute
Q2IP
RainProxy
RapidProxy
SwiftProxy
Thordata
ThunderProxy
VitalExclusive
YumiProxy
ZENPROXY_LITE

IPv4 market

Path

Announced by AS14571 since Jun 2026 · 5 mo ago

1 · Holder

none on record

2 · Leased from

not leased

3 · Announced by

AS14571 Oi S.A. - Em Recuperacao Judicial

since Jun 2026 · 5 mo ago

4 · Use

Proxy providersnamed Nox Proxy, Oxylabs

Residential

Operators, sellers and brokers

Proxy providers

Name	Parent	In 187.31.0.0/16	/24s
Nox Proxy		5,1207.8%	20
Oxylabs	Tesonet	7681.2%	3

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

187.31.0.0/16

From the registry to its use

Dec 15, 2008– Nov 7, 2025
Announced
AS14571 Oi S.A. - Em Recuperacao Judicial
Internet provider
Jul 30, 2025
Route object
AS7907 Networldtron Corp
RADB route object for AS7907 Networldtron Corp, maintainer MAINT-7HOOP
Oct 27, 2025– Jul 5, 2026
Announced
AS29987 Sinfony6, LLC
Hosting
Dec 24, 2025
Route object
AS29987 Sinfony6, LLC
RADB route object for AS29987 Sinfony6, LLC, maintainer MAINT-7HOOP
Jun 24, 2026– today
Announced
AS14571 Oi S.A. - Em Recuperacao Judicial
Internet provider
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.35.0/24
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.36.0/22
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.40.0/21
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.48.0/20
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.64.0/20
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.80.0/21
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.92.0/24
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.104.0/21
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.128.0/21
today
Route object
AS268188 Ativa Telecom LTDA
TC route object for AS268188 Ativa Telecom LTDA, maintainer MAINT-AS268188
187.31.136.0/22
today
Used
Nox Proxy
Proxy seller
today
Used
Oxylabs
Proxy seller

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.

More specific

Announcements inside

Arrived

Sort

Prefix	Origin	Type	Anonymizer addresses	Operator	Proxy exits
187.31.0.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.1.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.2.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.3.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.4.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.5.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.6.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.7.0/24 since Aug 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.8.0/24 since Oct 2025	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.9.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.10.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.11.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.12.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.13.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.14.0/24 since Jun 2026	AS29987	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.15.0/24 since Nov 6, 2026	AS275675	Datacenter proxy		Proxy providerssold by Nox Proxy
187.31.16.0/21 since Nov 6, 2026	AS275675	Unknown	25613%Datacenter proxy	Proxy providerssold by Nox Proxy
187.31.24.0/24 since Nov 6, 2026	AS275675	Unknown
187.31.30.0/24 since May 2026	AS14571	ISP proxy		Proxy providerssold by Oxylabs
187.31.31.0/24 since Jun 2026	AS14571	ISP proxy		Proxy providerssold by Nox Proxy, Oxylabs
187.31.32.0/24 since Jun 2026	AS14571	Residential
187.31.33.0/24 since Jun 2026	AS14571	ISP proxy		Proxy providerssold by Nox Proxy
187.31.34.0/24 since Jun 2026	AS14571	ISP proxy		Proxy providerssold by Oxylabs
187.31.36.0/24 since Oct 24, 2026	AS268188	Residential
187.31.37.0/24 since Oct 24, 2026	AS268188	Residential
187.31.38.0/24 since Oct 24, 2026	AS268188	Residential
187.31.39.0/24 since Oct 24, 2026	AS268188	ISP proxy		Proxy providerssold by Nox Proxy
187.31.40.0/24 since Oct 24, 2026	AS268188	Residential
187.31.41.0/24 since Oct 24, 2026	AS268188	Residential			8
187.31.42.0/24 since Oct 24, 2026	AS268188	Residential
187.31.43.0/24 since Oct 24, 2026	AS268188	Residential
187.31.44.0/24 since Oct 24, 2026	AS268188	Residential
187.31.45.0/24 since Oct 24, 2026	AS268188	Residential
187.31.46.0/24 since Oct 24, 2026	AS268188	Residential
187.31.47.0/24 since Oct 24, 2026	AS268188	Residential
187.31.48.0/24 since Oct 24, 2026	AS268188	Residential
187.31.49.0/24 since Oct 24, 2026	AS268188	Residential
187.31.50.0/24 since Oct 24, 2026	AS268188	Residential
187.31.51.0/24 since Oct 24, 2026	AS268188	Residential
187.31.52.0/24 since Oct 24, 2026	AS268188	Residential
187.31.53.0/24 since Oct 24, 2026	AS268188	Residential
187.31.54.0/24 since Oct 24, 2026	AS268188	Residential
187.31.55.0/24 since Oct 24, 2026	AS268188	Residential
187.31.56.0/24 since Oct 24, 2026	AS268188	Residential
187.31.57.0/24 since Oct 24, 2026	AS268188	Residential
187.31.58.0/24 since Oct 24, 2026	AS268188	Residential
187.31.59.0/24 since Oct 24, 2026	AS268188	Residential
187.31.60.0/24 since Oct 24, 2026	AS268188	Residential
187.31.61.0/24 since Oct 22, 2026	AS268188	Residential
187.31.62.0/24 since Oct 22, 2026	AS268188	Residential
187.31.63.0/24 since Oct 22, 2026	AS268188	Residential
187.31.68.0/24 since Oct 22, 2026	AS268188	Residential
187.31.69.0/24 since Oct 22, 2026	AS268188	Residential
187.31.70.0/24 since Oct 22, 2026	AS268188	Residential
187.31.71.0/24 since Oct 22, 2026	AS268188	Residential
187.31.72.0/24 since Oct 22, 2026	AS268188	Residential
187.31.73.0/24 since Oct 22, 2026	AS268188	Residential
187.31.74.0/24 since Oct 22, 2026	AS268188	Residential
187.31.75.0/24 since Oct 22, 2026	AS268188	Residential
187.31.76.0/24 since Oct 22, 2026	AS268188	Residential
187.31.77.0/24 since Oct 22, 2026	AS268188	Residential
187.31.78.0/24 since Oct 22, 2026	AS268188	Residential
187.31.79.0/24 since Oct 22, 2026	AS268188	Residential
187.31.80.0/24 since Oct 22, 2026	AS268188	Residential
187.31.81.0/24 since Oct 22, 2026	AS268188	Residential
187.31.82.0/24 since Oct 22, 2026	AS268188	Residential
187.31.83.0/24 since Oct 22, 2026	AS268188	Residential
187.31.84.0/24 since Oct 22, 2026	AS268188	Residential
187.31.85.0/24 since Oct 22, 2026	AS268188	Residential
187.31.86.0/24 since Oct 22, 2026	AS268188	Residential
187.31.87.0/24 since Oct 22, 2026	AS268188	Residential
187.31.88.0/22 since Oct 22, 2026	AS268188	Residential
187.31.88.0/23 since Oct 22, 2026	AS268188	Residential
187.31.88.0/24 since Oct 22, 2026	AS268188	Residential
187.31.89.0/24 since Oct 22, 2026	AS268188	Residential
187.31.90.0/23 since Oct 22, 2026	AS268188	Residential
187.31.90.0/24 since Oct 22, 2026	AS268188	Residential
187.31.91.0/24 since Oct 22, 2026	AS268188	Residential
187.31.99.0/24 since Oct 22, 2026	AS268188	Residential
187.31.100.0/22 since Jul 2026	AS29987	Datacenter proxy
187.31.100.0/24 since Oct 22, 2026	AS268188	Residential
187.31.101.0/24 since Oct 22, 2026	AS268188	Residential
187.31.102.0/24 since Oct 22, 2026	AS268188	Residential
187.31.103.0/24 since Oct 22, 2026	AS268188	Residential
187.31.104.0/24 since Oct 22, 2026	AS268188	Residential
187.31.105.0/24 since Oct 22, 2026	AS268188	Residential
187.31.106.0/24 since Oct 22, 2026	AS268188	Residential
187.31.107.0/24 since Oct 22, 2026	AS268188	Residential
187.31.108.0/24 since Oct 22, 2026	AS268188	Residential
187.31.109.0/24 since Oct 22, 2026	AS268188	Residential
187.31.110.0/24 since Oct 22, 2026	AS268188	Residential
187.31.111.0/24 since Oct 22, 2026	AS268188	Residential
187.31.112.0/20 since Oct 22, 2026	AS268188	Residential
187.31.128.0/24 since Oct 22, 2026	AS268188	Residential
187.31.129.0/24 since Oct 22, 2026	AS268188	Residential
187.31.130.0/24 since Oct 22, 2026	AS268188	Residential
187.31.131.0/24 since Oct 22, 2026	AS268188	Residential
187.31.132.0/24 since Oct 22, 2026	AS268188	Residential
187.31.133.0/24 since Oct 22, 2026	AS268188	Residential
187.31.134.0/24 since Oct 22, 2026	AS268188	Residential
187.31.135.0/24 since Oct 22, 2026	AS268188	Residential
187.31.136.0/24 since Oct 22, 2026	AS268188	Residential
187.31.137.0/24 since Oct 22, 2026	AS268188	Residential
187.31.138.0/24 since Oct 22, 2026	AS268188	Residential
187.31.139.0/24 since Oct 22, 2026	AS268188	Residential
187.31.142.0/24 since Oct 22, 2026	AS268188	Residential
187.31.144.0/20 since Nov 6, 2026	AS275667	Residential
187.31.160.0/19 since Nov 6, 2026	AS275667	Residential
187.31.192.0/23 since Nov 6, 2026	AS275667	Residential
187.31.194.0/23 since Nov 6, 2026	AS275662	Unknown
187.31.196.0/23 since Nov 6, 2026	AS275662	Unknown
187.31.200.0/21 since Nov 6, 2026	AS275662	Unknown
187.31.208.0/20 since Nov 6, 2026	AS275662	Unknown
187.31.224.0/21 since Nov 6, 2026	AS275662	Unknown
187.31.232.0/22 since Nov 6, 2026	AS275662	Unknown
187.31.236.0/23 since Nov 6, 2026	AS275662	Unknown
187.31.238.0/24 since Nov 6, 2026	AS275662	Unknown
187.31.239.0/24 since Aug 2026	AS269061	Hosting
187.31.240.0/21 since Aug 2026	AS269061	Unknown
187.31.248.0/21 since Aug 2026	AS269061	Unknown

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
187.31.0.0/21	2,048	558359	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br
187.31.8.0/22	1,024	558360	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br
187.31.12.0/23	512	558361	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br
187.31.14.0/24	256	558362	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br
187.31.15.0/24	256	558363	Mega Infra Solucoes EM Infraestrutura LTDA (07525262000119)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.16.0/21	2,048	558365	Mega Infra Solucoes EM Infraestrutura LTDA (07525262000119)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.24.0/24	256	558369	Mega Infra Solucoes EM Infraestrutura LTDA (07525262000119)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.28.0/22	1,024	558366	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br
187.31.32.0/23	512	559044	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	abuse@oi.net.br
187.31.34.0/24	256	559043	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	—
187.31.35.0/24	256	559042	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	—
187.31.36.0/22	1,024	559045	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.40.0/21	2,048	559046	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.48.0/20	4,096	559047	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.64.0/20	4,096	559049	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.80.0/21	2,048	559050	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.88.0/22	1,024	559051	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.99.0/24	256	559057	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.100.0/22	1,024	559060	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.104.0/21	2,048	559061	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.112.0/20	4,096	559062	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.128.0/21	2,048	559064	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.136.0/22	1,024	559065	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.142.0/24	256	559066	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	robson@rbsti.com.br
187.31.144.0/20	4,096	559015	L & K Tecnologia LTDA (27298172000140)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.160.0/19	8,192	559017	L & K Tecnologia LTDA (27298172000140)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.192.0/23	512	559018	L & K Tecnologia LTDA (27298172000140)	allocated	Dec 12, 2008	—
187.31.194.0/23	512	558875	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	—
187.31.196.0/23	512	558878	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.200.0/21	2,048	558879	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.208.0/20	4,096	558880	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.224.0/21	2,048	558882	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	—
187.31.232.0/22	1,024	558883	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.236.0/23	512	558884	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.238.0/24	256	558885	HOW BE Tecnologia e Solucoes LTDA (31261468000163)	allocated	Dec 12, 2008	juarez.alves@howbe.com.br
187.31.239.0/24	256	560977	Gtsnet Provedor de Internet LTDA (63335574000130)	allocated	Dec 12, 2008	gattai@gmail.com
187.31.240.0/21	2,048	560978	Gtsnet Provedor de Internet LTDA (63335574000130)	allocated	Dec 12, 2008	gattai@gmail.com
187.31.248.0/21	2,048	560979	Gtsnet Provedor de Internet LTDA (63335574000130)	allocated	Dec 12, 2008	gattai@gmail.com

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

65,536 addresses

Type	Addresses	Share	Ranges
Residential	42,496	65%	95
Unknown	17,152	26%	13
Datacenter proxyanonymizer	4,352	6.6%	17
ISP proxyanonymizer	1,280	2.0%	5
Hosting	256	0.39%	1

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern: Rotating
First seen: Dec 2008
Current origin since: Jun 2026 · 5 mo
Origin networks: 2
Last change of origin: Jun 2026

Recorded history

History

Handoffs: 2

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS7907 not the origin	RADB	Proxy-registered route object	MAINT-7HOOP	Jul 30, 2025
AS29987 not the origin	RADB	Oi Mobile	MAINT-7HOOP	Dec 24, 2025

IRR inside

Route objects inside

Prefix	Origin	Registry	Maintainer	Modified
187.31.35.0/24	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.36.0/22	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.40.0/21	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.48.0/20	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.64.0/20	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.80.0/21	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.92.0/24	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.104.0/21	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.128.0/21	AS268188	TC	MAINT-AS268188	Sep 2, 2026
187.31.136.0/22	AS268188	TC	MAINT-AS268188	Sep 2, 2026

187.31.0.0/16

Residential-proxy exits

Exits seen per day

Proxy providers listing exits

Path

Operators, sellers and brokers

Proxy providers

Lineage

From the registry to its use

Announcements

More-specifics by size

Announcements inside

Registrations in this block

Composition

Address share

Types across the prefix

Network & registry

AS14571

Who has announced this prefix

Routing history

History

Route objects on the exact prefix

Route objects inside

Registration for this announcement