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Data as of Nov 6, 2026

129.19.154.0/24

1 residential-proxy exit · 30 days

Boulder Public Library District · space held by Colorado State University

Announcement
this exact prefix
RPKI valid
Announced by
AS401317
Type
Business
Risk
0 / 100 · Low
Recent change
Reallocated Jul 30, 2026
to University Corporation for Atmospheric Research by Colorado State University

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · 30 days
Providers
7
selling exits here
Oct 7, 2026 – Nov 5, 2026

Exits seen per day

4 observations

Proxy providers listing exits

  • AnyIP
  • ColaProxy
  • GSocks
  • Geonix
  • IPFly
  • LemonBright
  • NovaProxy

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
└ 129.19.154.0/24256WESTNET-BPLD-01Boulder Public Library District (BPLD-4) · USReassignedJul 30, 2026—

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

AS401317

US
Name
Boulder Public Library District
Type
Education
Registered
Aug 14, 2024
Domain
boulderlibrary.org
Industry
Museums, Libraries, and Entertainment
Spamhaus ASN-DROP
not listed