Autonomous system
AS20235 MYLANP-AS - Mylan Pharmaceuticals Inc.
Unclassified ARIN
Summary
Mylan Pharmaceuticals
pharmaceutical corporate business
MYLANP-AS is operated by Mylan Pharmaceuticals Inc.
What it's used for
- The address space carries corporate infrastructure for a pharmaceutical company, evidenced by netnames
NET-MYLand registrantMylan Pharmaceuticals Inc. - The AS announces 768 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small internal corporate estate rather than a transit or access network.
Notable
- Registrants align perfectly with the announcer, with both prefixes registered to
Mylan Pharmaceuticals Inc. - Mylan merged with Upjohn in November 2020 to form Viatris, a global healthcare company.
- The inventory consists of two IPv4 blocks,
204.128.4.0/23and204.128.2.0/24, with no IPv6 prefixes announced.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-07, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS20235- Registry name
- MYLANP-AS
- Registrant
- Mylan Pharmaceuticals Inc.
- Abuse contact
- randy.lacey@mylanlabs.com
- Registered
- 2007-09-05
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS20235
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 1 naming AS20235
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: 454 networks and 1,852 prefixes, as published 2026-11-08. 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