Data as of Nov 5, 2026

168.158.0.0/24

Anonymizer · ISP proxy

Interworks Networking Services

Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin May 2026
from AS20012 Interworks Networking Services, after 4.5 years unannounced
IPv4 market

Path

Announced by AS20012 since May 2026 · 6 mo ago
1 · Holder
record created Apr 27, 1994
2 · Leased from
its owner, directly
3 · Announced by
AS20012 Interworks Networking Services
since May 2026 · 6 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 168.158.0.0/24/24s
Interworks Networking Services
256100%
1

Lineage

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

168.158.0.0/24

From the registry to its use

  1. Apr 27, 1994
    Registry record
    Interworks Networking Services
    Direct Allocation (legacy, pre-1997)
    168.158.0.0/16
  2. May 9, 2005– Jul 22, 2009
    Announced
    AS20012 Interworks Networking Services
    as part of 168.158.0.0/16
    168.158.0.0/16
  3. Jul 22, 2009– Apr 1, 2012
    Announced
    AS40459 Saddleback Communications
    Internet provider
  4. Mar 21, 2012– May 20, 2021
    Announced
    AS20012 Interworks Networking Services
    Hosting
  5. May 9, 2021– today
    Announced
    AS20012 Interworks Networking Services
    as part of 168.158.0.0/16
    168.158.0.0/16
  6. Oct 12, 2021– Nov 16, 2021
    Announced
    AS20012 Interworks Networking Services
    Hosting
  7. May 19, 2026– today
    Announced
    AS20012 Interworks Networking Services
    Hosting

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesProxy exitsHolderRPKI
168.158.0.0/16
since May 2021
AS20012ISP proxy1,7922.7%168
4 always on
Interworks Networking Services

Network & registry

Origin network

AS20012

US
Name
Interworks Networking Services
Type
Hosting
Registered
Dec 5, 2007
Domain
interwrx.com
Spamhaus ASN-DROP
not listed