LAYER3 INTEL
Get started
TripwireIntel APIIP IntelPricingBlogDocsContactSign in
Data as of Nov 3, 2026

38.3.166.0/24

No anonymizer space · no proxy exits in 30 days

Lastnet Telecom · space held by Cogent Communications, LLC

Announcement
38.3.166.0/23
RPKI valid
Announced by
AS273595
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · listed by providers

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
38.3.164.0/22
since Nov 2024
AS273595Residential66
12 always on
Cogent Communications, LLC
38.0.0.0/8AS174Internet providerIP broker Rackdog (part)411,970
75,686 always on
Cogent Communications, LLC

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
38.0.0.0/816,777,216COGENT-ACogent Communications, LLC (COGC) · USDirect AllocationApr 16, 1991[email protected]
└ 38.3.164.0/221,024METRORIBER-CGNT-NET-2Metrofiber Telecomunicacoes LTDA (C11599013) · BRReassignedMay 20, 2026[email protected]
via COGENT-A

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 38.3.166.0/23

Prefix
38.3.166.0/23
Announced by
AS273595 Lastnet Telecom
Type
Residential
Proxy exits
1
RPKI
RPKI valid
Netname
METRORIBER-CGNT-NET-2
Registrant
Metrofiber Telecomunicacoes LTDA
RIR
ARIN
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
38.0.0.0/8
Registration type
Direct Allocation
Record created
Apr 16, 1991
Legacy
yes
Origin network

AS273595

BR
Name
Lastnet Telecom
Type
Internet provider
Registered
Sep 30, 2022
Domain
lastnet.com.br
Website
www.lastnet.com.br
Spamhaus ASN-DROP
not listed