Data as of Nov 3, 2026

187.31.0.0/16

6,656 anonymizer addresses · 10%4 residential-proxy exits · 30 days

Oi S.A. - Em Recuperacao Judicial

Announcement

this exact prefix

No RPKI

Announced by

AS14571

Type

Residential

83% 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 4, 2026 – Nov 2, 2026

Exits seen per day

860 observations

Proxy providers listing exits

711Proxy
Ake.net
B2Proxy
Decodo
EZProxies
FastProxy
IPFly
IPPeak
LudaxProxy
Novada
Oxylabs
PuraRoute
RainProxy
Thordata

IPv4 market

Path

Announced by AS14571 since Jun 2026 · 4 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 · 4 mo ago

4 · Use

Proxy providersnamed Nox Proxy, Nox, Oxylabs

Residential

Operators, sellers and brokers

Proxy providers

Name	Parent	In 187.31.0.0/16	/24s
Nox Proxy		5,8889.0%	23
Nox		5120.78%	2
Oxylabs	Tesonet	5120.78%	2

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– Nov 2, 2026
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
187.31.36.0/22
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
Nox
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	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
187.31.30.0/24 since May 2026	AS14571	ISP proxy	Proxy providerssold by Nox
187.31.31.0/24 since Jun 2026	AS14571	ISP proxy	Proxy providerssold by Nox, 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
187.31.35.0/24 since Oct 24, 2026	AS268188	Residential
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		4
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
187.31.239.0/24 since Aug 2026	AS269061	Unknown
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	[email protected]
187.31.8.0/22	1,024	558360	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	[email protected]
187.31.12.0/23	512	558361	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	[email protected]
187.31.14.0/24	256	558362	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	—
187.31.28.0/22	1,024	558366	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	[email protected]
187.31.32.0/23	512	559044	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	—
187.31.34.0/24	256	559043	Oi S.A. - Em Recuperação Judicial (76535764000143)	allocated	Dec 12, 2008	[email protected]
187.31.35.0/24	256	559042	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	[email protected]
187.31.36.0/22	1,024	559045	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	[email protected]
187.31.40.0/21	2,048	559046	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	[email protected]
187.31.48.0/20	4,096	559047	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	[email protected]
187.31.100.0/22	1,024	559060	Ativa Telecom LTDA (26500067000189)	allocated	Dec 12, 2008	—
187.31.239.0/24	256	560977	Gtsnet Provedor de Internet LTDA (63335574000130)	allocated	Dec 12, 2008	[email protected]
187.31.240.0/21	2,048	560978	Gtsnet Provedor de Internet LTDA (63335574000130)	allocated	Dec 12, 2008	[email protected]
187.31.248.0/21	2,048	560979	Gtsnet Provedor de Internet LTDA (63335574000130)	allocated	Dec 12, 2008	[email protected]

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	54,528	83%	105
Unknown	4,352	6.6%	3
Datacenter proxyanonymizer	3,840	5.9%	15
ISP proxyanonymizer	2,816	4.3%	11

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS14571

Name: Oi S.A. - Em Recuperacao Judicial
Type: Internet provider
Registered: Jan 13, 2000
Domain: oi.com.br
Industry: Computer and Information Technology
Spamhaus ASN-DROP: not listed

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
187.31.36.0/22	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