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Whois
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#

ASNumber: 109
ASName: CISCOSYSTEMS
ASHandle: AS109
RegDate: 1987-05-06
Updated: 2023-09-12
Ref: https://rdap.arin.net/registry/autnum/109

OrgName: CISCO SYSTEMS, INC.
OrgId: CS-2831
Address: 251 LITTLE FALLS DRIVE
City: WILMINGTON
StateProv: DE
PostalCode: 19808
Country: US
RegDate: 2023-06-07
Updated: 2024-02-16
Ref: https://rdap.arin.net/registry/entity/CS-2831

OrgAbuseHandle: CISCO6-ARIN
OrgAbuseName: Cisco CSIRT
OrgAbusePhone: +1-408-527-3227
OrgAbuseEmail: csirt-notify@cisco.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/CISCO6-ARIN

OrgTechHandle: GATC-ARIN
OrgTechName: GIS ARIN Technical Contact
OrgTechPhone: +1-408-526-8888
OrgTechEmail: cidr-block-admins@cisco.com
OrgTechRef: https://rdap.arin.net/registry/entity/GATC-ARIN

OrgNOCHandle: GATC-ARIN
OrgNOCName: GIS ARIN Technical Contact
OrgNOCPhone: +1-408-526-8888
OrgNOCEmail: cidr-block-admins@cisco.com
OrgNOCRef: https://rdap.arin.net/registry/entity/GATC-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#

IPv4 Results:


AS109 Cisco Systems, Inc.
12.5.186.0 - 12.5.187.255
12.19.88.0 - 12.19.95.255
12.46.104.0 - 12.46.105.255
12.159.148.0 - 12.159.151.255
64.100.0.0 - 64.104.255.255
66.187.208.0 - 66.187.223.255
72.163.0.0 - 72.163.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255

IPv6 Results:


AS109 Cisco Systems, Inc.
2001:420:: - 2001:420:ff:ffff:ffff:ffff:ffff:ffff Prefix: 40
2001:420:100:: - 2001:420:13f:ffff:ffff:ffff:ffff:ffff Prefix: 42
2001:420:140:: - 2001:420:143:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:145:: - 2001:420:145:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:146:: - 2001:420:147:ffff:ffff:ffff:ffff:ffff Prefix: 47
2001:420:148:: - 2001:420:149:ffff:ffff:ffff:ffff:ffff Prefix: 47
2001:420:14a:: - 2001:420:14a:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:14b:: - 2001:420:14b:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:14c:: - 2001:420:14f:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:150:: - 2001:420:15f:ffff:ffff:ffff:ffff:ffff Prefix: 44
2001:420:160:: - 2001:420:17f:ffff:ffff:ffff:ffff:ffff Prefix: 43
2001:420:180:: - 2001:420:1ff:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:200:: - 2001:420:27f:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:280:: - 2001:420:2bf:ffff:ffff:ffff:ffff:ffff Prefix: 42
2001:420:2c0:: - 2001:420:2c7:ffff:ffff:ffff:ffff:ffff Prefix: 45
2001:420:2c8:: - 2001:420:2c9:ffff:ffff:ffff:ffff:ffff Prefix: 47
2001:420:2ca:: - 2001:420:2ca:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:2cb:: - 2001:420:2cb:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:2cc:: - 2001:420:2cf:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:2d0:: - 2001:420:2df:ffff:ffff:ffff:ffff:ffff Prefix: 44
2001:420:2e0:: - 2001:420:2ff:ffff:ffff:ffff:ffff:ffff Prefix: 43
2001:420:300:: - 2001:420:307:ffff:ffff:ffff:ffff:ffff Prefix: 45
2001:420:308:: - 2001:420:309:ffff:ffff:ffff:ffff:ffff Prefix: 47
2001:420:30a:: - 2001:420:30a:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:30b:: - 2001:420:30b:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:30c:: - 2001:420:30f:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:310:: - 2001:420:31f:ffff:ffff:ffff:ffff:ffff Prefix: 44
2001:420:320:: - 2001:420:33f:ffff:ffff:ffff:ffff:ffff Prefix: 43
2001:420:340:: - 2001:420:37f:ffff:ffff:ffff:ffff:ffff Prefix: 42
2001:420:380:: - 2001:420:3ff:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:400:: - 2001:420:7ff:ffff:ffff:ffff:ffff:ffff Prefix: 38
2001:420:800:: - 2001:420:fff:ffff:ffff:ffff:ffff:ffff Prefix: 37
2001:420:1000:: - 2001:420:10ff:ffff:ffff:ffff:ffff:ffff Prefix: 40
2001:420:1100:: - 2001:420:117f:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:1180:: - 2001:420:11ff:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:1200:: - 2001:420:127f:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:1280:: - 2001:420:12ff:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:1300:: - 2001:420:13ff:ffff:ffff:ffff:ffff:ffff Prefix: 40
2001:420:1400:: - 2001:420:17ff:ffff:ffff:ffff:ffff:ffff Prefix: 38
2001:420:1800:: - 2001:420:1fff:ffff:ffff:ffff:ffff:ffff Prefix: 37
2001:420:2000:: - 2001:420:27ff:ffff:ffff:ffff:ffff:ffff Prefix: 37
2001:420:2800:: - 2001:420:2bff:ffff:ffff:ffff:ffff:ffff Prefix: 38
2001:420:2c00:: - 2001:420:2c3f:ffff:ffff:ffff:ffff:ffff Prefix: 42
2001:420:2c40:: - 2001:420:2c47:ffff:ffff:ffff:ffff:ffff Prefix: 45
2001:420:2c48:: - 2001:420:2c4f:ffff:ffff:ffff:ffff:ffff Prefix: 45
2001:420:2c50:: - 2001:420:2c5f:ffff:ffff:ffff:ffff:ffff Prefix: 44
2001:420:2c60:: - 2001:420:2c7f:ffff:ffff:ffff:ffff:ffff Prefix: 43
2001:420:2c80:: - 2001:420:2cff:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:2d00:: - 2001:420:2dff:ffff:ffff:ffff:ffff:ffff Prefix: 40
2001:420:2e00:: - 2001:420:2fff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:3000:: - 2001:420:3fff:ffff:ffff:ffff:ffff:ffff Prefix: 36
2001:420:4000:: - 2001:420:47ff:ffff:ffff:ffff:ffff:ffff Prefix: 37
2001:420:4800:: - 2001:420:4bff:ffff:ffff:ffff:ffff:ffff Prefix: 38
2001:420:4c00:: - 2001:420:4c7f:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:4c80:: - 2001:420:4c80:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:4c81:: - 2001:420:4c81:ffff:ffff:ffff:ffff:ffff Prefix: 48
2001:420:4c82:: - 2001:420:4c83:ffff:ffff:ffff:ffff:ffff Prefix: 47
2001:420:4c84:: - 2001:420:4c87:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:4c88:: - 2001:420:4c8f:ffff:ffff:ffff:ffff:ffff Prefix: 45
2001:420:4c90:: - 2001:420:4c9f:ffff:ffff:ffff:ffff:ffff Prefix: 44
2001:420:4ca0:: - 2001:420:4cbf:ffff:ffff:ffff:ffff:ffff Prefix: 43
2001:420:4cc0:: - 2001:420:4cff:ffff:ffff:ffff:ffff:ffff Prefix: 42
2001:420:4d00:: - 2001:420:4dff:ffff:ffff:ffff:ffff:ffff Prefix: 40
2001:420:4e00:: - 2001:420:4fff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5000:: - 2001:420:51ff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5200:: - 2001:420:53ff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5400:: - 2001:420:55ff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5600:: - 2001:420:57ff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5800:: - 2001:420:59ff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5a00:: - 2001:420:5bff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5c00:: - 2001:420:5dff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:5e00:: - 2001:420:5fff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:6000:: - 2001:420:7fff:ffff:ffff:ffff:ffff:ffff Prefix: 35
2001:420:8000:: - 2001:420:bfff:ffff:ffff:ffff:ffff:ffff Prefix: 34
2001:420:c000:: - 2001:420:c07f:ffff:ffff:ffff:ffff:ffff Prefix: 41
2001:420:c080:: - 2001:420:c0bf:ffff:ffff:ffff:ffff:ffff Prefix: 42
2001:420:c0c0:: - 2001:420:c0c3:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0c4:: - 2001:420:c0c7:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0c8:: - 2001:420:c0cb:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0cc:: - 2001:420:c0cf:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0d0:: - 2001:420:c0d3:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0d4:: - 2001:420:c0d7:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0d8:: - 2001:420:c0db:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0dc:: - 2001:420:c0df:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0e0:: - 2001:420:c0e3:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0e4:: - 2001:420:c0e7:ffff:ffff:ffff:ffff:ffff Prefix: 46
2001:420:c0e8:: - 2001:420:c0ef:ffff:ffff:ffff:ffff:ffff Prefix: 45
2001:420:c0f0:: - 2001:420:c0ff:ffff:ffff:ffff:ffff:ffff Prefix: 44
2001:420:c100:: - 2001:420:c1ff:ffff:ffff:ffff:ffff:ffff Prefix: 40
2001:420:c200:: - 2001:420:c3ff:ffff:ffff:ffff:ffff:ffff Prefix: 39
2001:420:c400:: - 2001:420:c7ff:ffff:ffff:ffff:ffff:ffff Prefix: 38
2001:420:c800:: - 2001:420:cfff:ffff:ffff:ffff:ffff:ffff Prefix: 37
2001:420:d000:: - 2001:420:dfff:ffff:ffff:ffff:ffff:ffff Prefix: 36
2001:420:e000:: - 2001:420:ffff:ffff:ffff:ffff:ffff:ffff Prefix: 35

WHOIS Lookup

Determine details about the online resource by using:
  • IP address
  • Domain name
  • Autonomous system number (ASN)
  • Company name
You can get information about the owners of Internet resources. Аind out how to contact the owner of the resource via email or other methods of communication.
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