ASN AS3943
Allocated 2012-08-06
Registry arin
Related Domain
IP Addresses 65,536
Country United States

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Whois Details

ASHandle:       AS3943
OrgID:          CISCOS-2
ASName:         DMM
ASNumber:       3943
RegDate:        2012-08-06
Updated:        2012-10-16
Source:         ARIN

OrgID:          CISCOS-2
OrgName:        Cisco Systems, Inc.
Street:         170 West Tasman Drive
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        1986-02-05
Updated:        2017-09-11
OrgTechHandle:  ZIEGL31-ARIN
OrgTechHandle:  BRAEC-ARIN
OrgAbuseHandle: DN5-ORG-ARIN
OrgAdminHandle: GATC-ARIN
OrgTechHandle:  GATC-ARIN
Source:         ARIN

IP Address Ranges

Netblock Description Num IPs Usenix/UUNET Technology Incorporated 65,536
Netblock Description
2604:a800:1::/48 State of Arkansas
2610:d0::/32 Cisco Systems, Inc.

Hosted Domain Names

There are 3 domain names hosted across 3 IP addresses on this ASN. To access full domain hosting information with our API contact us for more details.

IP Address Domain Domains on this IP 1 1 1

Network Speed

We don't currently have any network speed data for this network.

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See the ASN report for United States for more related networks.


Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.

Find out more about AS3943 at robtex.