Autonomous system
AS15141 ASN-BAUSCH-LOMB
Unclassified ARIN
Summary
Bausch & Lomb
business enterprise
Fourteen announcements carving up one range, all wearing the same label.
What it's used for
- An eye-health manufacturer's network. Fourteen IPv4 prefixes announced from the United States, no IPv6, and two observed BGP neighbours.
Notable
- Every prefix falls inside
161.242, split at seven different lengths from a/18down to/24blocks, so one allocation is announced as fourteen routes. - Every resolved block carries the netname
BAUSCH-LOMBand the same registrant, with the ampersand in the company name replaced by a hyphen in the netname. - The AS handle prefixes that same hyphenated form with the object type.
- Eighteen addresses were queried for reverse DNS and none returned a name.
- Sixty thousand addresses sit behind two observed upstreams.
Interesting
- Fourteen routes and one label is the pattern that recurs across every large single-holder network in this range. Routing carries all the structure; the registry carries none of it. Nothing outside the company can say which piece is a factory, an office or a laboratory.
- An ampersand is one of the characters registry identifiers cannot hold, so it becomes a hyphen and the netname stops matching the company's legal name. Searching for either form misses the other.
- Two upstreams for sixty thousand addresses is thin, and combined with an empty reverse zone it describes a network that reaches out far more than it is reached.
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 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 60.93K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 14 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS15141- Registry name
- ASN-BAUSCH-LOMB
- Registrant
- Bausch & Lomb
- Abuse contact
- alejandro.lopezlara@bausch.com
- Registered
- 2000-03-24
- Last changed
- 2017-06-05
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS15141
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 136 naming AS15141
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: 442 networks and 1,784 prefixes, as published 2026-10-19. 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