Autonomous system
AS62945 CORNERSTONE - Cornerstone Information Systems, Inc.
Unclassified ARIN
Summary
Cornerstone Information Systems
business enterprise it-services
CORNERSTONE is the AS handle for Cornerstone Information Systems, Inc.
What it's used for
- The space carries enterprise IT infrastructure, evidenced by the netname
SDL-CIS-1and reverse DNS entries pointing tocorn.smithvilledigital.net. - The AS announces 256 IPv4 addresses across 1 prefix with 2 observed neighbours, indicating a small-scale internal corporate network rather than a transit or access provider.
- Traffic from this AS consists of office workers and internal systems for a Kentucky-based IT services firm that provides data processing solutions for travel companies.
Notable
- The registrant
Cornerstone Information Systems Inc.matches the AS holder, confirming consistent ownership of the address space. - The address inventory is a single /24 block, which is typical for a small business maintaining its own ASN for direct internet 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.
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 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS62945- Registry name
- CORNERSTONE
- Registrant
- Cornerstone Information Systems, Inc.
- Abuse contact
- systems@ciswired.com
- Registered
- 2013-12-03
- Last changed
- 2013-12-03
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS62945
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS62945
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