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Data as of Nov 7, 2026

16.221.176.0/20

Anonymizer · ISP proxy

Cox Communications Inc. · space held by Hewlett Packard Enterprise Company

Announcement
this exact prefix
RPKI valid
Announced by
AS22773
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Oct 10, 2026
its first announcement on record
registry: reallocated to Internet Utilities NA LLC by Hewlett Packard Enterprise Company, May 29, 2026
IPv4 market

Path

Announced by AS22773 since Oct 10, 2026 · 4 wk ago
1 · Holder
Hewlett Packard Enterprise Company
record created May 18, 1989 · reallocated to Internet Utilities NA LLC May 29, 2026
2 · Leased from
IPXO
for its owner Hewlett Packard Enterprise Company
3 · Announced by
AS22773 Cox Communications Inc.
since Oct 10, 2026 · 4 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 16.221.176.0/20/24s
IPXO
4,096100%
16
Leased from

Owners leasing their own space

NameIn 16.221.176.0/20/24s
Hewlett Packard Enterprise Company
4,096100%
16

Lineage

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

16.221.176.0/20

From the registry to its use

  1. May 18, 1989
    Registry record
    Hewlett Packard Enterprise Company
    Direct Allocation (legacy, pre-1997)
    16.220.0.0 - 16.242.255.255
  2. May 29, 2026
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    16.220.0.0/14
  3. Oct 10, 2026– today
    Announced
    AS22773 Cox Communications Inc.
    Internet provider
  4. Oct 14, 2026
    Assigned
    Internet Utilities NA LLC
    Reassigned
    16.221.176.0/20
  5. Oct 14, 2026
    Route object
    IPXO
    RADB route object for AS22773 Cox Communications Inc., maintainer MAINT-AS834
  6. Oct 14, 2026
    Route object
    IPXO
    RADB route object for AS54004 Cablevision Lightpath LLC, maintainer MAINT-AS834
  7. today
    Leased from
    IPXO
    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
16.220.0.0 - 16.242.255.2551,507,328HPE-15Hewlett Packard Enterprise Company (HPE-15) · USDirect AllocationMay 18, 1989IPv4.notices@hpe.com
└ 16.220.0.0/14262,144NET-16-220-IL-845IPXO LLC (IL-845) · USReallocatedMay 15, 2026abuse@ipxo.com
└ 16.220.0.0/14262,144NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedMay 29, 2026report@abuseradar.com
└ 16.221.176.0/204,096NET-16-221-176-0-20unknownReassignedOct 14, 2026report@abuseradar.com
via NET-16-220-IL-845

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
Hewlett Packard Enterprise Company
Handle
HPE-15
Range
16.220.0.0 - 16.242.255.255
Registration type
Direct Allocation
Record created
May 18, 1989
Legacy
yes
Reallocated to
Internet Utilities NA LLC (DCL-577)
Reallocated range
16.220.0.0/14
Reallocated
May 29, 2026
Origin network

AS22773

US
Name
Cox Communications Inc.
Type
Internet provider
Registered
Nov 20, 2001
Domain
cox.com
Website
www.cox.com/peering
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed