Data as of Nov 6, 2026
143.20.218.0/24
No anonymizer space · no proxy exits in 30 daysKesmai Corporation · space held by Net and Grid Research, LLC
Announcement
this exact prefix
RPKI invalid (origin)
Announced by
Type
Unknown
Risk
40 / 100 · Medium
Leased space · Recently moved
Recent change
New origin Sep 2026
from AS203048
IPv4 market
Path
Announced by AS6475 since Sep 2026 · 9 wk ago
2 · Leased from
4 · Use
Unknown
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
143.20.218.0/24
From the registry to its use
- Apr 14, 2025Registry recordNet and Grid Research, LLCLEGACY143.20.0.0/16
- Jan 19, 2026– Mar 31, 2026
- Jan 28, 2026AssignedInternet Utilities Europe and Asia LimitedLEGACY143.20.218.0/24
- Apr 25, 2026– May 6, 2026Announced
- Sep 1, 2026Route objectIPXORIPE route object for AS6475 Kesmai Corporation, maintainer NETUTILS-MNT
- Sep 4, 2026– Oct 22, 2026
- Nov 1, 2026Route objectIPXORADB route object for AS834 IPXO LLC, maintainer MAINT-AS834
- todayLeased fromIPXOIP broker
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@ |
| └ 143.20.218.0/24 | 256 | NET-143-20-218-0-24 | 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
AS6475
US
- Name
- Kesmai Corporation
- Type
- Hosting
- Registered
- Apr 25, 1996
- Domain
- virginia.edu
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jan 2026
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 3
- Last change of origin
- Sep 2026
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 143.
20. 218. 0/ 24 - Netname
- NET-143-20-218-0-24
- 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
- Jan 28, 2026
- Updated
- Nov 1, 2026
- 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