asn.dev

Autonomous system

AS53985 DODGE-AND-COX-FUNDS

Unclassified ARIN

IPv4 addresses 1.79K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 6 0 downstream
Flagged prefixes 0 none

Summary

Dodge & Cox

United States of America · AI-generated

business finance corporate

The AS handle DODGE-AND-COX-FUNDS is held by Dodge & Cox.

What it's used for

  • The address space carries corporate infrastructure, evidenced by netnames such as DODGE-AND-COX and WELL, and reverse DNS entries pointing to static.ctl.one.
  • The AS announces 1792 IPv4 addresses across 7 prefixes and maintains 6 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access provider.
  • Traffic from this AS consists of office workers and internal business endpoints for the asset management firm.

Notable

  • Registrants for the majority of prefixes align with the announcer, listing DODGE & COX or DODGE AND COX, while two prefixes are registered to Cogent Communications, LLC and two to Verizon Business.
  • The address inventory is composed of seven /24 blocks, including space originally allocated to Cogent and Verizon, indicating a mix of historically leased and directly registered corporate address space.

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

6 upstream, 0 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC219
AS33651Comcast Cable Communications, LLC62
AS6461Zayo Bandwidth53
AS60793TELEFONICA TECH NORTHERN IRELAND LIMITED35
AS174Cogent Communications, LLC23
AS701Verizon Business20

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, 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 7 prefixes · 1.79K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America7

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS53985
Registry name
DODGE-AND-COX-FUNDS
Registrant
DODGE & COX
Abuse contact
David.Hayes@dodgeandcox.com
Registered
2011-08-24
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
14% valid · 1 valid, 6 with no ROA
ROAs
1 authorising AS53985
ASPA
no ASPA record
IRR
29% registered · 2 of 7 announcements 4 other origin
Route objects
2 naming AS53985

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 1,779 prefixes, as published 2026-10-23. 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