Cisco Systems, Inc

IPv4 IPv6
Country United States United States
Assigned AS AS2051, AS3943, AS22183, AS23460, AS25949, AS26092, AS36519, AS40590, AS54140, AS55219, AS62897, AS63096, AS396922, AS398699, AS399780
Updated 11 July 2026

We found 263 IPv4 networks operated by this organization. The first 50 networks are displayed.

Results sorted by network size.

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United States Cisco Systems, Inc
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Network: CISCO-GEN-6
CIDR: N/A
IP Range: 64.100.0.0 - 64.104.255.255
Block size: 327,680
United States Cisco Systems, Inc
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Network: CISCOS-2
CIDR: 171.68.0.0/14
IP Range: 171.68.0.0 - 171.71.255.255
Block size: 262,144
United States Cisco Systems, Inc
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Network: CISCO-GEN-8
CIDR: 173.36.0.0/14
IP Range: 173.36.0.0 - 173.39.255.255
Block size: 262,144
United States Cisco Systems, Inc
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Network: CISCO-GEN-7
CIDR: 72.163.0.0/16
IP Range: 72.163.0.0 - 72.163.255.255
Block size: 65,536
United States Cisco Systems, Inc
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Network: CISCO-PRNET1
CIDR: 128.107.0.0/16
IP Range: 128.107.0.0 - 128.107.255.255
Block size: 65,536
United States Cisco Systems, Inc
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Network: TGV-NETB
CIDR: 161.44.0.0/16
IP Range: 161.44.0.0 - 161.44.255.255
Block size: 65,536
United States Cisco Systems, Inc
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Network: CISCOS
CIDR: N/A
IP Range: 192.133.144.0 - 192.133.243.255
Block size: 25,600
United States Cisco Systems, Inc
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Network: CS-2831
CIDR: 74.207.64.0/18
IP Range: 74.207.64.0 - 74.207.127.255
Block size: 16,384
United States Cisco Systems, Inc
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Network: US-CISCO1-19960205
CIDR: 194.165.192.0/19
IP Range: 194.165.192.0 - 194.165.223.255
Block size: 8,192
United States Cisco Systems, Inc
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Network: US-CISCO1-19971031
CIDR: 195.146.160.0/19
IP Range: 195.146.160.0 - 195.146.191.255
Block size: 8,192
United States Cisco Systems, Inc
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Network: CISCO-RMS-01
CIDR: 66.187.208.0/20
IP Range: 66.187.208.0 - 66.187.223.255
Block size: 4,096
United States Cisco Systems, Inc
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Network: CISCO-CAAS-GEN-1
CIDR: 69.168.16.0/20
IP Range: 69.168.16.0 - 69.168.31.255
Block size: 4,096
United States Cisco Systems, Inc
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Network: CAAS-NET-2
CIDR: 158.222.48.0/20
IP Range: 158.222.48.0 - 158.222.63.255
Block size: 4,096
Canada Cisco Systems, Inc
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Network: LANCOPE-HQ
CIDR: 209.182.176.0/20
IP Range: 209.182.176.0 - 209.182.191.255
Block size: 4,096
United Kingdom Cisco Systems Inc
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Network: CS-2787
CIDR: 74.117.120.0/21
IP Range: 74.117.120.0 - 74.117.127.255
Block size: 2,048
Canada Cisco Systems Inc
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Network: CS-2787
CIDR: 104.156.40.0/21
IP Range: 104.156.40.0 - 104.156.47.255
Block size: 2,048
United States Cisco Systems, Inc
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Network: NETBLK-CISCO-CBLOCK
CIDR: 198.135.0.0/21
IP Range: 198.135.0.0 - 198.135.7.255
Block size: 2,048
Canada Cisco Systems, Inc
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Network: CS-2825
CIDR: 200.194.240.0/21
IP Range: 200.194.240.0 - 200.194.247.255
Block size: 2,048
United States Cisco Systems Inc
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Network: CS-2787
CIDR: 216.9.168.0/21
IP Range: 216.9.168.0 - 216.9.175.255
Block size: 2,048
United States Cisco Systems, Inc
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Network: ATT-NET-12-159-148-0-22
CIDR: 12.159.148.0/22
IP Range: 12.159.148.0 - 12.159.151.255
Block size: 1,024
United States Cisco Systems, Inc
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Network: OORTIO-IPV4-01
CIDR: 172.98.16.0/22
IP Range: 172.98.16.0 - 172.98.19.255
Block size: 1,024
United States Cisco Systems, Inc
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Network: TALOS
CIDR: 172.110.204.0/22
IP Range: 172.110.204.0 - 172.110.207.255
Block size: 1,024
Canada Cisco Systems Inc
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Network: CETGOPS-SJC1-NET2
CIDR: 199.19.188.0/22
IP Range: 199.19.188.0 - 199.19.191.255
Block size: 1,024
Canada Cisco Systems Inc
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Network: CETGOPS-SJC1-NET1
CIDR: 204.16.208.0/22
IP Range: 204.16.208.0 - 204.16.211.255
Block size: 1,024
United States Cisco Systems, Inc
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Network: CISCO-204
CIDR: 204.69.196.0/22
IP Range: 204.69.198.0 - 204.69.201.255
Block size: 1,024
United States Cisco Systems, Inc
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Network: CISCO-SY146-186
CIDR: 12.5.186.0/23
IP Range: 12.5.186.0 - 12.5.187.255
Block size: 512
United States Cisco Systems, Inc
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Network: UU-63-118-244
CIDR: 63.118.244.0/23
IP Range: 63.118.244.0 - 63.118.245.255
Block size: 512
United States Cisco Systems, Inc
Linksys SBSBU
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Network: ATTENS-010392-005039
CIDR: 63.241.220.0/23
IP Range: 63.241.220.0 - 63.241.221.255
Block size: 512
United States Cisco Systems, Inc
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Network: CISCO-TTNA
CIDR: 172.98.16.0/23
IP Range: 172.98.16.0 - 172.98.17.255
Block size: 512
United States Cisco Systems, Inc
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Network: STO-ASIG-IPV4-01
CIDR: 172.98.18.0/23
IP Range: 172.98.18.0 - 172.98.19.255
Block size: 512
United States Cisco Systems, Inc
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Network: CISCO-EXTERNAL
CIDR: 192.135.240.0/23
IP Range: 192.135.240.0 - 192.135.241.255
Block size: 512
United States Cisco Systems, Inc
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Network: TALOS
CIDR: 198.148.78.0/23
IP Range: 198.148.78.0 - 198.148.79.255
Block size: 512
United States Cisco Systems, Inc
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Network: APPDYNAMICS
CIDR: 198.169.194.0/23
IP Range: 198.169.194.0 - 198.169.195.255
Block size: 512
United States Cisco Systems Inc
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Network: NEWE-CISCOS-3
CIDR: 209.218.232.0/23
IP Range: 209.218.232.0 - 209.218.233.255
Block size: 512
United States Cisco Systems Inc
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Network: CISCO-SY61-230
CIDR: 12.153.230.0/24
IP Range: 12.153.230.0 - 12.153.230.255
Block size: 256
United States Cisco Systems Inc
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Network: CISCO-SY61-231
CIDR: 12.153.231.0/24
IP Range: 12.153.231.0 - 12.153.231.255
Block size: 256
United States Cisco Systems Inc
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Network: CISCO-SY61-236
CIDR: 12.190.236.0/24
IP Range: 12.190.236.0 - 12.190.236.255
Block size: 256
Australia Cisco Systems, Inc
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Network: AWS-CISCO
CIDR: 13.210.74.0/24
IP Range: 13.210.74.0 - 13.210.74.255
Block size: 256
Australia Cisco Systems, Inc
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Network: AWS-CISCO
CIDR: 13.210.75.0/24
IP Range: 13.210.75.0 - 13.210.75.255
Block size: 256
United States Cisco Systems Inc
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Network: AWS-CISCO
CIDR: 34.211.10.0/24
IP Range: 34.211.10.0 - 34.211.10.255
Block size: 256
United States Cisco Systems, Inc
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Network: ACCEDIAN-2
CIDR: 45.45.157.0/24
IP Range: 45.45.157.0 - 45.45.157.255
Block size: 256
United States Cisco Systems, Inc
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Network: UU-63-67-142-D1
CIDR: 63.67.142.0/24
IP Range: 63.67.142.0 - 63.67.142.255
Block size: 256
United States Cisco Systems, Inc
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Network: UU-63-97-201
CIDR: 63.97.201.0/24
IP Range: 63.97.201.0 - 63.97.201.255
Block size: 256
United States Cisco Systems, Inc
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Network: UU-63-98-9
CIDR: 63.98.9.0/24
IP Range: 63.98.9.0 - 63.98.9.255
Block size: 256
United States Cisco Systems Inc
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Network: CISCO-SYSTEMS
CIDR: 63.160.45.0/24
IP Range: 63.160.45.0 - 63.160.45.255
Block size: 256
United States Cisco Systems Inc
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Network: SPRINTLINK
CIDR: 63.162.55.0/24
IP Range: 63.162.55.0 - 63.162.55.255
Block size: 256
United States Cisco Systems, Inc
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Network: NET-64-148-82-0-1
CIDR: 64.148.82.0/24
IP Range: 64.148.82.0 - 64.148.82.255
Block size: 256
United States Cisco Systems
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Network: SBCIS-10127-142735
CIDR: 64.171.105.0/24
IP Range: 64.171.105.0 - 64.171.105.255
Block size: 256
United States Cisco Systems
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Network: SBC06421817200024050609101039
CIDR: 64.218.172.0/24
IP Range: 64.218.172.0 - 64.218.172.255
Block size: 256
United States Cisco Systems, Inc
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Network: UU-65-198-111
CIDR: 65.198.111.0/24
IP Range: 65.198.111.0 - 65.198.111.255
Block size: 256
213 more networks >>

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