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Data as of Nov 3, 2026

166.0.121.0/24

Anonymizer · ISP proxy

CenturyLink Communications, LLC · space held by Ace Data Centers, Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS3561
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Oct 2, 2026
from AS401152 Ace Data Centers II, L.L.C.
IPv4 market

Path

Announced by AS3561 since Oct 2, 2026 · 5 wk ago
1 · Holder
Ace Data Centers, Inc.
record created Jul 10, 2012
2 · Leased from
Ace Data Centers
3 · Announced by
AS3561 CenturyLink Communications, LLC
since Oct 2, 2026 · 5 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 166.0.121.0/24/24s
Ace Data Centers
256100%
1

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

166.0.121.0/24

From the registry to its use

  1. Jul 10, 2012
    Registry record
    Ace Data Centers, Inc.
    Direct Allocation
    166.0.0.0/15
  2. Mar 24, 2023– Aug 2, 2023
    Announced
    AS7018 AT&T Enterprises, LLC
    Internet provider
  3. Sep 8, 2023– Sep 19, 2023
    Announced
    AS47585 Yigit Hosting Bilisim E-Ticaret Gida Sanayi Ticaret Limited Sirketi
    Hosting
  4. Mar 30, 2024– Apr 12, 2026
    Announced
    AS58061 Scalaxy B.V.
    Hosting
  5. Apr 13, 2026– Oct 1, 2026
    Announced
    AS401152 Ace Data Centers II, L.L.C.
    Hosting
  6. Apr 29, 2026
    Route object
    AS401152 Ace Data Centers II, L.L.C.
    ARIN route object for AS401152 Ace Data Centers II, L.L.C., maintainer MNT-ADC-96
  7. May 21, 2026
    Assigned
    Metronet
    Reassigned
    166.0.121.0/24
  8. Oct 2, 2026– today
    Announced
    AS3561 CenturyLink Communications, LLC
    Internet provider
  9. today
    Leased from
    Ace Data Centers
    IP broker
  10. today
    Leased from
    Rackdog
    IP 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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
166.0.0.0/15131,072ACE-NETWORK-10Ace Data Centers, Inc. (ADC-96) · USDirect AllocationJul 10, 2012[email protected]
└ 166.0.121.0/24256METRONETMetronet (C11600563) · USReassignedMay 21, 2026[email protected]
via ACE-NETWORK-10

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

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Ace Data Centers, Inc.
Handle
ADC-96
Range
166.0.0.0/15
Registration type
Direct Allocation
Record created
Jul 10, 2012
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