asn.dev

Autonomous system

AS33173 MYGN-US - Myriad Genetics Incorporated

Unclassified ARIN

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Myriad Genetics

United States of America · AI-generated

business genetics corporate

MYGN- is the autonomous system for Myriad Genetics Incorporated.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname MYRIAD-GENETICS-320 associated with the prefix 204.58.244.0/24.
  • The AS announces 512 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access provider.

Notable

  • Registrants do not fully align with the announcer; the prefix 50.233.232.0/24 is registered to Comcast Cable Communications, LLC under the netname CCCH3-4, while 204.58.244.0/24 is registered to Myriad Genetics Incorporated.
  • The address inventory is small and subdivided into two distinct /24 blocks, one of which appears to be leased or historically associated with a cable provider.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6461Zayo Bandwidth70
AS33660Comcast Cable Communications, LLC48

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, 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 2 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS33173
Registry name
MYGN-US
Registrant
Myriad Genetics Incorporated
Abuse contact
arinadministrator@myriad.com
Registered
2011-03-15
Last changed
2012-03-20
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
50% valid · 1 valid, 1 with no ROA
ROAs
1 authorising AS33173
ASPA
no ASPA record
IRR
50% registered · 1 of 2 announcements
Route objects
1 naming AS33173

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: 453 networks and 1,854 prefixes, as published 2026-11-06. 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