Autonomous system
AS109 CISCOSYSTEMS
Unclassified ARIN
IPv4 addresses
1.14M
78 prefixes
IPv6 prefixes
54
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
0
none
Summary
Cisco Systems, Inc.
corporate enterprise legacy
The corporate network of Cisco Systems, the networking-hardware giant, on one of
the internet's early low-numbered ASNs.
What it's used for
- Cisco's own global corporate infrastructure — offices, labs, and internet- facing services, not a commercial transit or hosting product.
Notable
- Addresses here belong to Cisco the company; they are not customer networks.
- The low AS number (109) dates to Cisco's early presence on the internet, which is fitting given the company builds much of the world's routing hardware.
Interesting
- Cisco's routers and the BGP they speak are the machinery underneath most of the other ASNs in this list.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 132 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS109- Registry name
- CISCOSYSTEMS
- Registrant
- CISCO SYSTEMS, INC.
- Abuse contact
- csirt-notify@cisco.com
- Registered
- 1987-05-06
- Last changed
- 2023-09-12
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere