Data as of Nov 8, 2026
143.20.74.0/24
Anonymizer · ISP proxyHGC Global Communications Limited · space held by Net and Grid Research, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Oct 22, 2026
from AS214483 FiberPower LLC
IPv4 market
Path
Announced by AS9304 since Oct 22, 2026 · 2 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 143.20.74.0/24 | /24s |
|---|---|---|
| IPXO | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 143.20.74.0/24 | /24s |
|---|---|---|
| Gauss Research Laboratory | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
143.20.74.0/24
From the registry to its use
- Apr 14, 2025Registry recordNet and Grid Research, LLCLEGACY143.20.0.0/16
- Aug 16, 2025– Aug 27, 2025
- Aug 16, 2025– Oct 2, 2025
- Sep 21, 2025– Oct 26, 2025
- Oct 15, 2025– Nov 7, 2025
- Oct 27, 2025– Jan 18, 2026Announced
- Sep 4, 2026– Sep 15, 2026
- Oct 22, 2026– today
- Oct 27, 2026Route objectIPXORIPE route object for AS2914 NTT America, Inc., maintainer NETUTILS-MNT
- Oct 27, 2026Route objectIPXORIPE route object for AS9304 HGC Global Communications Limited, maintainer NETUTILS-MNT
- Oct 28, 2026Route objectIPXORADB route object for AS2914 NTT America, Inc., maintainer MAINT-AS834
- Oct 28, 2026Route objectIPXORADB route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS834
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@ |
| └ 143.20.72.0/22 | 1,024 | NET-143-20-72-0-22 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Jun 6, 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
AS9304
HK
- Name
- HGC Global Communications Limited
- Type
- Internet provider
- Registered
- May 12, 1998
- Domain
- hgc-intl.com
- Website
- www.hgc-intl.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Aug 2025
- Current origin since
- Oct 22, 2026 · under a month
- Origin networks
- 5
- Last change of origin
- Oct 22, 2026
Recorded history
History
- Handoffs
- 6
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 143.
20. 74. 0/ 24 - Netname
- NET-143-20-74-0-24
- Registrant country
- US
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Oct 27, 2026
- Updated
- Oct 27, 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