Data as of Nov 10, 2026
144.225.164.0/23
Anonymizer · ISP proxyKorea Telecom · space held by Ace Data Centers II, L.L.C.
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Sep 30, 2026
from AS9304 HGC Global Communications Limited
IPv4 market
Path
Announced by AS4766 since Sep 30, 2026 · 6 wk ago
1 · Holder
record created Apr 7, 2025 · reallocated to Internet Utilities NA LLC Feb 26, 2026
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 144.225.164.0/23 | /24s |
|---|---|---|
| Ace Data Centers | 512100% | 2 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
144.225.164.0/23
From the registry to its use
- Apr 7, 2025Registry recordAce Data Centers II, L.L.C.Direct Allocation144.225.0.0/16
- Feb 24, 2026– Mar 19, 2026
- Feb 26, 2026ReallocatedInternet Utilities NA LLCReallocated144.225.164.0/23
- Mar 8, 2026– Sep 21, 2026
- Mar 16, 2026Route objectIPXOARIN route object for AS9304 HGC Global Communications Limited, maintainer MNT-DCL-577
- Sep 25, 2026Route objectIPXOARIN route object for AS4766 Korea Telecom, maintainer MNT-DCL-577
- Sep 27, 2026Route objectIPXORADB route object for AS4766 Korea Telecom, maintainer MAINT-AS834
- Sep 30, 2026– Nov 9, 2026
- todayLeased fromAce Data CentersIP broker
- 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 |
|---|---|---|---|---|---|---|
| 144.225.0.0/16 | 65,536 | ADCIL | Ace Data Centers II, L.L.C. (ADCIL) · US | Direct Allocation | Apr 7, 2025 | ipabuse@ |
| └ 144.225.164.0/23 | 512 | IPXO | IPXO LLC (IL-845) · US | Reallocated | Feb 25, 2026 | abuse@ |
| └ 144.225.164.0/23 | 512 | NETUTILS | Internet Utilities NA LLC (DCL-577) · US | Reallocated | Feb 26, 2026 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- Ace Data Centers II, L.L.C.
- Handle
- ADCIL
- Range
- 144.
225. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Apr 7, 2025
- Reallocated to
- Internet Utilities NA LLC (DCL-577)
- Reallocated range
- 144.
225. 164. 0/ 23 - Reallocated
- Feb 26, 2026
Origin network
AS4766
KR
- Name
- Korea Telecom
- Type
- Internet provider
- Registered
- Apr 22, 1996
- Domain
- kt.com
- Website
- www.kt.com/eng/main.jsp
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Feb 2026
- Current origin since
- Sep 30, 2026 · 1 mo
- Origin networks
- 3
- Last change of origin
- Sep 30, 2026
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 144.
225. 164. 0/ 23 - Netname
- NETUTILS
- Registrant
- Internet Utilities NA LLC
- Organization
- Internet Utilities NA LLC (DCL-577)
- Org address
- 2711 Centerville Road, Wilmington, DE, 19808
- Org country
- US
- Type
- Reallocated
- Handle
- NET-144-225-164-0-2
- Parent
- NET-144-225-164-0-1
- Created
- Feb 26, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 7, 2025
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse
- Phone
- +1-650-934-1667
- Handle
- IUA-ARIN