Data as of Nov 9, 2026

185.81.187.0/24

Anonymizer · Datacenter proxy

WS Telecom Inc · space held by Ivan Bulavkin

Announcement
RPKI valid
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical
IPv4 market

Path

1 · Holder
record created Mar 12, 2019 · reallocated to SIA "Singularity Telecom" Oct 19, 2022
2 · Leased from
its owner, directly
3 · Announced by
AS209372 WS Telecom Inc
since Apr 2026 · 7 mo ago
4 · Use
Datacenter proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 185.81.187.0/24/24s
Ivan Bulavkin
256100%
1

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
185.81.184.0/221,024RU-MAINACC-20141217Ivan Bulavkin (ORG-BIA108-RIPE) · RUALLOCATED PAMar 12, 2019noc@onerinvestments.com
└ 185.81.186.0/23512Net-M4SIA "Singularity Telecom" (ORG-ST325-RIPE) · RUSUB-ALLOCATED PAOct 19, 2022abuse@ws.network
└ 185.81.187.0/24256New-York-telecomSIA "Singularity Telecom" (ORG-ST325-RIPE)ASSIGNED PAOct 19, 2022abuse@ws.network

Network & registry

Announced by

Covering announcement 185.81.186.0/23

Prefix
185.81.186.0/23
Announced by
AS209372 WS Telecom Inc
Type
Datacenter proxy
Anonymizer addresses
all
RPKI
RPKI valid
Netname
Net-M4
Registrant
SIA "Singularity Telecom"
RIR
RIPE NCC
IPv4 market

Holder

Organization
Ivan Bulavkin
Handle
ORG-BIA108-RIPE
Range
185.81.184.0/22
Registration type
ALLOCATED PA
Record created
Mar 12, 2019
Reallocated to
SIA "Singularity Telecom" (ORG-ST325-RIPE)
Reallocated range
185.81.186.0/23
Reallocation type
SUB-ALLOCATED PA
Reallocated
Oct 19, 2022
Origin network

AS209372

US
Name
WS Telecom Inc
Type
Hosting
Registered
Aug 23, 2019
Domain
wstelecom.us
Spamhaus ASN-DROP
not listed