LAYER3 INTEL
Get started
Sign in
Data as of Nov 8, 2026

204.43.128.0/18

No anonymizer space · no proxy exits in 30 days

Mesa Public Schools · space held by The University of Arizona

Announcement
this exact prefix
No RPKI
Announced by
AS6172
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
204.43.128.0/17
since Aug 2014
AS6172Business47The University of Arizona
via Arizona Board of Regents

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
204.43.0.0/1665,536ARIZ-FORMER-WESTThe University of Arizona (UOAZ-Z) · USDirect AllocationJan 1, 1994abuse@arizona.edu
└ 204.43.0.0/1665,536SCN-KYRENE-MESASDArizona Board of Regents (ABR-13) · USReallocatedMar 10, 2021abuse@arizona.edu
└ 204.43.128.0/1732,768MESASDMesa School District (MSD-1) · USReassignedMar 10, 2021—

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
The University of Arizona
Handle
UOAZ-Z
Range
204.43.0.0/16
Registration type
Direct Allocation
Record created
Jan 1, 1994
Legacy
yes
Reallocated to
Arizona Board of Regents (ABR-13)
Reallocated
Mar 10, 2021
Origin network

AS6172

US
Name
Mesa Public Schools
Type
Education
Registered
May 27, 2014
Domain
mpsaz.org
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed