Autonomous system
AS3902 GLAXOSMITHKLINE
Unclassified ARIN
Summary
GlaxoSmithKline (GSK)
enterprise legacy
Corporate network of GlaxoSmithKline (GLAXOSMITHKLINE), the global pharmaceutical company, registered through ARIN at its US offices in Philadelphia, Pennsylvania.
What it's used for
- Enterprise networking for GSK's own sites — offices, research facilities, and internal systems.
- About 1,000 IPv4 addresses, an enterprise-sized footprint rather than a provider one.
Notable
- This is a corporate network: traffic from this range is a pharmaceutical company's employees and infrastructure, not consumers.
- The ASN was registered with ARIN in 1994, under a name that only came into existence in 2000 when Glaxo Wellcome merged with SmithKline Beecham — the registry record was clearly renamed as the corporate identity changed beneath it.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS10753 | Level 3 Parent, LLC | 240 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3902- Registry name
- GLAXOSMITHKLINE
- Registrant
- GlaxoSmithKline
- Abuse contact
- csir@gsk.com
- Registered
- 1994-10-04
- Last changed
- 2007-06-08
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS3902
- ASPA
- no ASPA record
- IRR
- 75% registered · 3 of 4 announcements
- Route objects
- 3 naming AS3902
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: 446 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