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Data as of Nov 6, 2026

129.19.145.0/24

No anonymizer space · no proxy exits in 30 days

Western Colorado University · space held by Colorado State University

Announcement
this exact prefix
RPKI valid
Announced by
AS17015
Type
Business
Risk
0 / 100 · Low
Recent change
Reallocated Jul 30, 2026
to University Corporation for Atmospheric Research by Colorado State University

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
129.19.0.0/16
since Oct 2009
AS14041Business58
4 always on
Colorado State University

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
129.19.0.0/1665,536WESTNETColorado State University (CSU-2-Z) · USDirect AllocationJul 8, 1987dns.admin@colostate.edu
└ 129.19.128.0/1816,384FRGP-PARTICIPANT-ASSIGNMENTS-01University Corporation for Atmospheric Research (UCAR-1) · USReallocatedJul 30, 2026abuse@ucar.edu
└ 129.19.145.0/24256WESTNET-WESTERN-COLORADO-UNIVERSITYWestern Colorado University (WSCU-4) · USReassignedJul 30, 2026ccaceres@western.edu

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Colorado State University
Handle
CSU-2-Z
Range
129.19.0.0/16
Registration type
Direct Allocation
Record created
Jul 8, 1987
Legacy
yes
Reallocated to
University Corporation for Atmospheric Research (UCAR-1)
Reallocated range
129.19.128.0/18
Reallocated
Jul 30, 2026
Origin network

AS17015

US
Name
Western Colorado University
Type
Education
Registered
Dec 5, 2017
Domain
western.edu
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed