asn.dev

Autonomous system

AS35350 AS_SCHWARZ_PHARMA_AG Alfred-Nobel-Str. 10

Unclassified RIPE

IPv4 addresses 2.05K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BE
Exchanges 0 recorded by PCH
Upstreams 7 0 downstream
Flagged prefixes 0 none

Summary

UCB Pharma

Belgium · AI-generated

pharmaceutical corporate business

AS_SCHWARZ_PHARMA_AG is held by UCB Pharma S.A.

What it's used for

  • The address space carries corporate infrastructure for a global biopharmaceutical company, evidenced by netnames UCB and UCB-0 and registrants UCB Pharma S.A. and UCB Inc.
  • The AS announces 2048 IPv4 addresses across 2 prefixes and maintains 7 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access network.

Notable

  • Registrants align with the announcer, listing UCB Pharma S.A. and UCB Inc. for the respective prefixes.
  • UCB Pharma rebranded from a broader pharmaceutical company to a specialty biopharmaceutical firm focused on neurological and autoimmune conditions.
  • The inventory consists of two /22 blocks, one in Belgium and one in the United States, reflecting the company's international operational footprint.

CLASSIFICATION - after the card, on its own final line, emit exactly:

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

7 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8220COLT Technology Services Group Limited68
AS18486NTT Global Networks Incorporated59
AS61231Neos Networks Limited51
AS42808NTT Global Networks Incorporated32
AS39686Eurofiber Nederland BV15
AS2856British Telecommunications Limited8
AS9002RETN Limited1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
BEBelgium2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS35350
Registry name
AS_SCHWARZ_PHARMA_AG
Registrant
AS2822-MNT
Abuse contact
IT-GlobalNPS@ucb.com
Registered
2005-07-20
Last changed
2024-12-05
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
25% valid · 1 valid, 3 with no ROA
ROAs
1 authorising AS35350
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
7 naming AS35350

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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