Data as of Nov 3, 2026
185.185.145.0/24
Anonymizer · Datacenter proxyWS Telecom Inc · space held by Ivan Bulavkin
Announcement
this exact prefix
RPKI valid
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical
Recently moved
IPv4 market
Path
1 · Holder
record created Feb 28, 2019 · reallocated to SIA "Singularity Telecom" Aug 25, 2023
4 · Use
Datacenter proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 185.185.145.0/24 | /24s |
|---|---|---|
| Ivan Bulavkin | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
185.185.145.0/24
From the registry to its use
- Feb 28, 2019Registry recordIvan BulavkinALLOCATED PA185.185.144.0/22
- Mar 27, 2020– Apr 19, 2020
- Aug 25, 2023ReallocatedSIA "Singularity Telecom"SUB-ALLOCATED PA185.185.144.0/23
- Dec 26, 2025– Jan 6, 2026
- Dec 26, 2025– Jan 30, 2026
- Jan 19, 2026– Nov 2, 2026
- Jan 31, 2026– Nov 2, 2026
- May 31, 2026– Jul 5, 2026
- May 31, 2026– Jul 5, 2026
- Aug 23, 2026– Sep 3, 2026
- Aug 23, 2026– Sep 3, 2026
- Sep 24, 2026AssignedWS Telecom IncASSIGNED PA185.185.145.0/24
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 185.185.144.0/22 since Jan 2026 | AS213541 | Datacenter proxy | Ivan Bulavkin |
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 |
|---|---|---|---|---|---|---|
| 185.185.144.0/22 | 1,024 | RU-MAINACC-20170113 | Ivan Bulavkin (ORG-BIA108-RIPE) · RU | ALLOCATED PA | Feb 28, 2019 | [email protected] |
| └ 185.185.144.0/23 | 512 | ISP-BR-04 | SIA "Singularity Telecom" (ORG-ST325-RIPE) · BR | SUB-ALLOCATED PA | Aug 25, 2023 | [email protected] |
| └ 185.185.145.0/24 | 256 | SAOPAULO-DSL | WS Telecom Inc (ORG-WTI4-RIPE) · US | ASSIGNED PA | Sep 24, 2026 | [email protected] |
Network & registry
IPv4 market
Holder
- Organization
- Ivan Bulavkin
- Handle
- ORG-BIA108-RIPE
- Range
- 185.185.144.0/22
- Registration type
- ALLOCATED PA
- Record created
- Feb 28, 2019
- Reallocated to
- SIA "Singularity Telecom" (ORG-ST325-RIPE)
- Reallocated range
- 185.185.144.0/23
- Reallocation type
- SUB-ALLOCATED PA
- Reallocated
- Aug 25, 2023
Origin network
AS213541
US
- Name
- WS Telecom Inc
- Type
- Hosting
- Registered
- Jan 21, 2025
- Domain
- wstelecom.us
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Mar 2020
- Current origin since
- Jan 2026 · 9 mo
- Origin networks
- 3
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 185.185.144.0/22 | AS209372 | /24 | RIPE | Another network |
| 185.185.144.0/22 | AS213541 | /24 | RIPE | RPKI valid |
Whois
Registration for this announcement
- Range
- 185.185.145.0/24
- Netname
- SAOPAULO-DSL
- Registrant
- WS Telecom Inc
- Registrant country
- BR
- Organization
- WS Telecom Inc (ORG-WTI4-RIPE)
- Org country
- US
- Type
- ASSIGNED PA
- Created
- Sep 24, 2026
- Updated
- Sep 24, 2026
- Maintainer
- wst-mnt
- RIR
- RIPE NCC
- Country
- RU
- Delegated
- Jan 13, 2017
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- WS Telecom Inc
- Handle
- WTI9-RIPE