Data as of Nov 7, 2026
205.186.121.0/24
Anonymizer · ISP proxyCenturyLink Communications, LLC · 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
Recent change
New origin Oct 22, 2026
its first announcement on record
IPv4 market
Path
Announced by AS3561 since Oct 22, 2026 · 2 wk ago
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 205.186.121.0/24 | /24s |
|---|---|---|
| Ace Data Centers | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
205.186.121.0/24
From the registry to its use
- Jan 28, 2025Registry recordAce Data Centers II, L.L.C.Direct Allocation205.186.64.0/18
- Oct 20, 2026AssignedMetronetReassigned205.186.121.0/24
- Oct 22, 2026– today
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 |
|---|---|---|---|---|---|---|
| 205.186.64.0/18 | 16,384 | ADCIL | Ace Data Centers II, L.L.C. (ADCIL) · US | Direct Allocation | Jan 28, 2025 | ipabuse@ |
| └ 205.186.121.0/24 | 256 | METRONET | Metronet (C11743488) · US | Reassigned | Oct 20, 2026 | ipabuse@ via ADCIL |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Ace Data Centers II, L.L.C.
- Handle
- ADCIL
- Range
- 205.
186. 64. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Jan 28, 2025
Origin network
AS3561
US
- Name
- CenturyLink Communications, LLC
- Type
- Internet provider
- Registered
- Oct 7, 1998
- Domain
- lumen.com
- Website
- www.lumen.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 22, 2026
- Current origin since
- Oct 22, 2026 · under a month
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 205.186.121.0/24 | AS3561 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 205.
186. 121. 0/ 24 - Netname
- METRONET
- Registrant
- Metronet
- Organization
- Metronet (C11743488)
- Type
- Reassigned
- Handle
- NET-205-186-121-0-1
- Parent
- NET-205-186-64-0-1
- Created
- Oct 20, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 28, 2025
- Status
- assigned
Report abuse
Abuse contact
- ipabuse@
acedatacenter. com - Name
- Abuse
- Phone
- +1-801-851-5540
- Handle
- ABUSE8727-ARIN