asn.dev

Autonomous system

AS25753 CALPERS

Unclassified ARIN

IPv4 addresses 3.33K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

CalPERS

United States of America · AI-generated

government pension enterprise us

CALPERS is the autonomous system for California Public Employees' Retirement System.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by netnames consistently set to CALPERS and registrants listed as California Public Employees Retirement System; NMS.
  • The AS announces 3328 IPv4 addresses across 3 prefixes, with 4 observed neighbours. This ratio of a moderate address inventory against a low neighbour count indicates an internal corporate estate rather than a transit or access network.

Notable

  • Registrants agree with the announcer, with all three prefixes registered to California Public Employees Retirement System; NMS.
  • The address inventory consists of three distinct IPv4 blocks: 199.164.56.0/21, 199.164.36.0/22, and 199.164.44.0/24.
  • No IPv6 prefixes are currently announced in the inventory.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS701Verizon Business528
AS7018AT&T Enterprises, LLC304
AS33667Comcast Cable Communications, LLC235
AS3356Level 3 Parent, LLC120

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 3 prefixes · 3.33K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS25753
Registry name
CALPERS
Registrant
California Public Employees' Retirement System
Abuse contact
john_badger@calpers.ca.gov
Registered
2002-05-02
Last changed
2022-05-03
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 20 with no ROA
ROAs
0 authorising AS25753
ASPA
no ASPA record
IRR
0% registered · 0 of 20 announcements
Route objects
0 naming AS25753

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check