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Data as of Nov 8, 2026

185.105.45.0/24

Anonymizer · Datacenter proxy

WS Telecom Inc · space held by Ivan Bulavkin

Announcement
185.105.44.0/23
RPKI valid
Announced by
AS213541
Type
Datacenter proxy
Risk
85 / 100 · Critical
Recently moved
IPv4 market

Path

1 · Holder
Ivan Bulavkin
record created Mar 12, 2019 · reallocated to SIA "Singularity Telecom" Jul 4, 2024
2 · Leased from
Ivan Bulavkin
its owner, directly
3 · Announced by
AS213541 WS Telecom Inc
since Dec 2025 · 10 mo ago
4 · Use
Datacenter proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 185.105.45.0/24/24s
Ivan Bulavkin
256100%
1

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
185.105.44.0/221,024RU-MAINACC-20150618Ivan Bulavkin (ORG-BIA108-RIPE) · RUALLOCATED PAMar 12, 2019noc@onerinvestments.com
└ 185.105.44.0/23512ISP-BR-15SIA "Singularity Telecom" (ORG-ST325-RIPE) · BRSUB-ALLOCATED PAJul 4, 2024abuse@ws.network
└ 185.105.45.0/24256SAOPAULO-DSLWS Telecom Inc (ORG-WTI4-RIPE) · USASSIGNED PASep 24, 2026abuse@wstelecom.us

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 185.105.44.0/23

Prefix
185.105.44.0/23
Announced by
AS213541 WS Telecom Inc
Type
Datacenter proxy
Anonymizer addresses
all
RPKI
RPKI valid
Netname
ISP-BR-15
Registrant
SIA "Singularity Telecom"
RIR
RIPE NCC
IPv4 market

Holder

Holder in the market →
Organization
Ivan Bulavkin
Handle
ORG-BIA108-RIPE
Range
185.105.44.0/22
Registration type
ALLOCATED PA
Record created
Mar 12, 2019
Reallocated to
SIA "Singularity Telecom" (ORG-ST325-RIPE)
Reallocated range
185.105.44.0/23
Reallocation type
SUB-ALLOCATED PA
Reallocated
Jul 4, 2024
Origin network

AS213541

US
Name
WS Telecom Inc
Type
Hosting
Registered
Jan 21, 2025
Domain
wstelecom.us
Spamhaus ASN-DROP
not listed