Data as of Nov 9, 2026
143.20.204.0/24
No anonymizer space · no proxy exits in 30 daysAlice Networks Ltd · space held by Net and Grid Research, LLC
IPv4 market
Path
2 · Leased from
4 · Use
Hosting
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
143.20.204.0/24
From the registry to its use
- Apr 14, 2025Registry recordNet and Grid Research, LLCLEGACY143.20.0.0/16
- Apr 30, 2025– Jun 4, 2025
- May 24, 2025– Jul 10, 2025
- Jul 11, 2025– Jul 22, 2025
- Jul 11, 2025– Oct 14, 2025
- Jul 14, 2025AssignedInternet Utilities Europe and Asia LimitedLEGACY143.20.204.0/24
- Oct 15, 2025– Oct 26, 2025
- Dec 14, 2025– Dec 25, 2025
- Dec 14, 2025– today
- Dec 14, 2025– today
- todayLeased fromIPXOIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 143.20.204.0/23 since Dec 2025 | AS215355 | Hosting | IP broker IPXO | Net and Grid Research, LLC |
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@ |
| └ 143.20.128.0/17 | 32,768 | NET-143-20-128-0-17 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Apr 17, 2025 | report@ |
| └ 143.20.204.0/23 | 512 | NET-143-20-204-0-23 | Alice Networks Ltd (ORG-ANL53-RIPE) · GB | LEGACY | Dec 19, 2025 | report@ |
| └ 143.20.204.0/24 | 256 | NET-143-20-204-0-24 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Jul 14, 2025 | 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
AS215355
GB
- Name
- Alice Networks Ltd
- Type
- Hosting
- Registered
- Mar 7, 2024
- Domain
- alicenetworks.net
- Website
- alicenetworks.net
- Industry
- Hosting, Cloud Provider, Data Center, Server Colocation
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jul 2025
- Current origin since
- Dec 2025 · 11 mo
- Origin networks
- 3
- Last change of origin
- Dec 2025
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 143.20.204.0/23 | AS215355 | /24 | RIPE | RPKI valid |
Whois
Registration for this announcement
- Range
- 143.
20. 204. 0/ 24 - Netname
- NET-143-20-204-0-24
- Registrant
- Internet Utilities Europe and Asia Limited
- Registrant country
- EU
- Organization
- Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE)
- Org country
- GB
- Type
- LEGACY
- Created
- Jul 14, 2025
- Updated
- Dec 15, 2025
- Maintainer
- netutils-mnt
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Aug 5, 1990
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse Contact
- Handle
- AR834