Data as of Nov 9, 2026

185.101.203.0/24

Anonymizer · Datacenter proxy

WS Telecom Inc · space held by Ivan Bulavkin

Announcement

this exact prefix

RPKI valid

Announced by

AS213541

Type

Datacenter proxy

Risk

85 / 100 · Critical

IPv4 market

Path

1 · Holder

Ivan Bulavkin

record created Mar 12, 2019 · reallocated to SIA "Singularity Telecom" Oct 13, 2022

2 · Leased from

Ivan Bulavkin

its owner, directly

3 · Announced by

AS213541 WS Telecom Inc

since Nov 2025 · 12 mo ago

4 · Use

Datacenter proxy

anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

Name	In 185.101.203.0/24	/24s
Ivan Bulavkin	256100%	1

Lineage

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

185.101.203.0/24

From the registry to its use

Mar 12, 2019
Registry record
Ivan Bulavkin
ALLOCATED PA
185.101.200.0/22
Oct 12, 2021– Mar 16, 2022
Announced
AS9009 M247 Europe SRL
Hosting
Mar 5, 2022– Dec 1, 2025
Announced
AS209372 WS Telecom Inc
Hosting
Mar 11, 2022
Route object
AS209372 WS Telecom Inc
RIPE route object for AS209372 WS Telecom Inc, maintainer IPMEN
Oct 13, 2022
Reallocated
SIA "Singularity Telecom"
SUB-ALLOCATED PA
185.101.203.0/24
Aug 5, 2025
Route object
AS213541 WS Telecom Inc
RADB route object for AS213541 WS Telecom Inc, maintainer MAINT-AS209372
Nov 20, 2025– today
Announced
AS213541 WS Telecom Inc
Hosting

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
185.101.200.0/22	1,024	RU-MAINACC-20150526	Ivan Bulavkin (ORG-BIA108-RIPE) · RU	ALLOCATED PA	Mar 12, 2019	noc@onerinvestments.com
└ 185.101.203.0/24	256	US-UT	SIA "Singularity Telecom" (ORG-ST325-RIPE) · RU	SUB-ALLOCATED PA	Oct 13, 2022	abuse@ws.network
└ 185.101.203.0/29	8	buenos-aires-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.8/29	8	vienna-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.16/29	8	vienna-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.24/29	8	brussels-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.32/29	8	sophia-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.40/29	8	sophia-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.48/29	8	bern-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.56/29	8	bern-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.64/29	8	santiago-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.72/29	8	santiago-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.80/29	8	bogota-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.88/29	8	bogota-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.96/29	8	hong-kong-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.104/29	8	budapest-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.112/29	8	budapest-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.120/29	8	jerusalem-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.128/29	8	rome-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.136/29	8	rome-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.144/29	8	seoul-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.152/29	8	astana-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.160/29	8	wellington-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.168/29	8	bucharest-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.176/29	8	moscow-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.184/29	8	moscow-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.192/29	8	moscow-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.200/29	8	stockholm-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.208/29	8	istanbul-telecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 14, 2022	abuse@ws.network
└ 185.101.203.216/29	8	France-WStelecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 23, 2024	abuse@ws.network
└ 185.101.203.224/29	8	France-WStelecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 23, 2024	abuse@ws.network
└ 185.101.203.232/29	8	Frakfurt-WStelecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 23, 2024	abuse@ws.network
└ 185.101.203.240/29	8	Frakfurt-WStelecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 23, 2024	abuse@ws.network
└ 185.101.203.248/29	8	Madrid-WStelecom	SIA "Singularity Telecom" (ORG-ST325-RIPE)	ASSIGNED PA	Oct 23, 2024	abuse@ws.network

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

IPv4 market

Holder

Holder in the market →

Organization: Ivan Bulavkin
Handle: ORG-BIA108-RIPE
Range: 185.101.200.0/22
Registration type: ALLOCATED PA
Record created: Mar 12, 2019
Reallocated to: SIA "Singularity Telecom" (ORG-ST325-RIPE)
Reallocated range: 185.101.203.0/24
Reallocation type: SUB-ALLOCATED PA
Reallocated: Oct 13, 2022

Origin network

AS213541

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

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
185.101.203.0/24	AS9009	/24	RIPE	Another network
185.101.203.0/24	AS209372	/24	RIPE	Another network
185.101.203.0/24	AS213541	/24	RIPE	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS209372 not the origin	RIPE		IPMEN	Mar 11, 2022
AS213541	RADB	Lease to customer ID21	MAINT-AS209372	Aug 30, 2026

185.101.203.0/24

Path

Operators, sellers and brokers

Owners leasing their own space

Lineage

From the registry to its use

Registrations in this block

Network & registry

Holder

AS213541

Who has announced this prefix

Routing history

History

Route origin authorizations

Route objects on the exact prefix

Registration for this announcement

Abuse contact