asn.dev

Autonomous system

AS36667 PHIBRO-ANIMAL-HEALTH-CORPORATION-ARIN

Unclassified ARIN

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Phibro Animal Health Corporation

United States of America · AI-generated

business corporate animal-health

PHIBRO-ANIMAL-HEALTH-CORPORATION-ARIN is the autonomous system for Phibro Animal Health Corporation.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname PAHC-NET4 and registrant Phibro Animal Health Corporation on the primary block.
  • The AS announces 768 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 3 observed neighbours, indicating a small internal corporate estate rather than a transit or access provider.

Notable

  • Registrants align with the announcer, with Phibro Animal Health Corporation and PHIBRO ANIMAL HEALTH listed for the respective IPv4 blocks.
  • The inventory consists of two distinct IPv4 blocks: a /23 and a /24, alongside a single /44 IPv6 prefix.
  • Reverse DNS entries for the 63.247.166.0/24 block point to cst.lightpath.net, suggesting this specific segment is hosted or routed via Lightpath.

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

3 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12033Adams TelSystems, Inc.100
AS54004Cablevision Lightpath LLC94
AS174Cogent Communications, LLC32

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 1 prefixes · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36667
Registry name
PHIBRO-ANIMAL-HEALTH-CORPORATION-ARIN
Registrant
Phibro Animal Health Corporation
Abuse contact
greg.baugher@pahc.com
Registered
2006-03-10
Last changed
2019-02-20
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
4 authorising AS36667
ASPA
no ASPA record
IRR
80% registered · 4 of 5 announcements
Route objects
4 naming AS36667

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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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