Data as of Nov 9, 2026
143.20.19.0/24
Anonymizer · Datacenter proxySprious LLC · space held by Net and Grid Research, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical
IPv4 market
Path
Operators, sellers and brokers
Proxy providers
Runs itSells it
Leased from
Owners leasing their own space
| Name | In 143.20.19.0/24 | /24s |
|---|---|---|
| Gauss Research Laboratory | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
143.20.19.0/24
From the registry to its use
- Apr 14, 2025Registry recordNet and Grid Research, LLCLEGACY143.20.0.0/16
- Nov 8, 2025– Dec 1, 2025
- Nov 20, 2025– Dec 1, 2025
- Nov 20, 2025– Jan 18, 2026AnnouncedAS203453 RegXpress Ltd
- Jan 19, 2026– Jan 30, 2026
- Jan 28, 2026Route objectIPXORIPE route object for AS54252 Sprious LLC, maintainer NETUTILS-MNT
- Jan 28, 2026Route objectIPXORADB route object for AS54252 Sprious LLC, maintainer MAINT-AS834
- Jan 31, 2026– Nov 8, 2026
- todayLeased fromIPXOIP broker
- todayUsedRayobyteProxy seller
- todayUsedSpriousProxy seller
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 |
|---|---|---|---|---|---|---|
| 143.20.0.0/16 | 65,536 | us-netandgrid-19900805 | Net and Grid Research, LLC (ORG-NAGR1-RIPE) · US | LEGACY | Apr 14, 2025 | cthomas57@ |
| └ 143.20.0.0/17 | 32,768 | NET-143-20-0-0-17 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Apr 17, 2025 | report@ |
| └ 143.20.16.0/22 | 1,024 | NET-143-20-16-0-22 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Jun 4, 2025 | report@ |
| └ 143.20.19.0/24 | 256 | NET-143-20-19-0-24 | unknown | LEGACY | Jan 28, 2026 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- Net and Grid Research, LLC
- Handle
- ORG-NAGR1-RIPE
- Range
- 143.
20. 0. 0/ 16 - Registration type
- LEGACY
- Record created
- Apr 14, 2025
- Legacy
- yes
Origin network
AS54252
US
- Name
- Sprious LLC
- Type
- Hosting
- Registered
- Apr 13, 2021
- Domain
- sprious.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Nov 2025
- Current origin since
- Jan 2026 · 9 mo
- Origin networks
- 4
- Last change of origin
- Jan 2026
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 143.
20. 19. 0/ 24 - Netname
- NET-143-20-19-0-24
- Registrant country
- GB
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Jan 28, 2026
- Updated
- Feb 26, 2026
- Maintainer
- netutils-mnt
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Aug 5, 1990
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Private Customer
- Handle
- SL15024-RIPE