Autonomous system
AS25857 ACS-ASN
Unclassified ARIN
Summary
American Chemical Society
business scientific corporate
The AS handle ACS-ASN is held by American Chemical Society.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by the netname
ACS-VA-DCand the reverse DNS recordiclookuptest-origin.acs.org. - The AS announces a single IPv4 prefix of 256 addresses with one observed neighbour, indicating a small, self-contained internal network rather than a transit or access provider.
Notable
- The RDAP registrant for the announced prefix matches the AS holder, both identified as American Chemical Society.
- The address inventory consists of a single /24 block, reflecting a minimal footprint typical of a non-telecom organization managing its own internal connectivity.
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 |
|---|---|---|
| AS14244 | NSI Hosting | 60 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS25857- Registry name
- ACS-ASN
- Registrant
- American Chemical Society
- Abuse contact
- g_dorelas@acs.org
- Registered
- 2010-05-19
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS25857
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 3 naming AS25857
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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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