Cisco Systems, Inc

IPv4 IPv6

Networks by country:

United States (324),

Canada (9),

Australia (8),

Netherlands (4),

Germany (2)

Assigned AS: AS1343, AS2051, AS3943, AS22183, AS23460, AS25949, AS63059

Updated: 05 June 2025

We found 257 IPv4 networks operated by this organization.
The first 100 networks are displayed.
Results sorted by network size.

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Cisco Systems, Inc
CISCO-GEN-6

CIDR: N/A
IP Range: 64.100.0.0 - 64.104.255.255
Block size: 327,680

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Cisco Systems, Inc
CISCOS-2

CIDR: 171.68.0.0/14
IP Range: 171.68.0.0 - 171.71.255.255
Block size: 262,144

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Cisco Systems, Inc
CISCO-GEN-8

CIDR: 173.36.0.0/14
IP Range: 173.36.0.0 - 173.39.255.255
Block size: 262,144

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Cisco Systems, Inc
CISCO-GEN-7

CIDR: 72.163.0.0/16
IP Range: 72.163.0.0 - 72.163.255.255
Block size: 65,536

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Cisco Systems, Inc
CISCO-PRNET1

CIDR: 128.107.0.0/16
IP Range: 128.107.0.0 - 128.107.255.255
Block size: 65,536

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Cisco Systems, Inc
CISCO-SHONET

CIDR: 144.254.0.0/16
IP Range: 144.254.0.0 - 144.254.255.255
Block size: 65,536

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Cisco Systems, Inc
TGV-NETB

CIDR: 161.44.0.0/16
IP Range: 161.44.0.0 - 161.44.255.255
Block size: 65,536

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Cisco Systems, Inc
CISCOS

CIDR: N/A
IP Range: 192.133.144.0 - 192.133.243.255
Block size: 25,600

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Cisco Systems, Inc
CS-2831

CIDR: 74.207.64.0/18
IP Range: 74.207.64.0 - 74.207.127.255
Block size: 16,384

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Cisco Systems, Inc
CISCO-GEN-7

CIDR: 216.128.32.0/19
IP Range: 216.128.32.0 - 216.128.63.255
Block size: 8,192

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Cisco Systems, Inc
CAAS-NET-2

CIDR: 158.222.48.0/20
IP Range: 158.222.48.0 - 158.222.63.255
Block size: 4,096

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Cisco Systems, Inc
CISCO-CAAS-GEN-1

CIDR: 69.168.16.0/20
IP Range: 69.168.16.0 - 69.168.31.255
Block size: 4,096

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Cisco Systems, Inc
LANCOPE-HQ

CIDR: 209.182.176.0/20
IP Range: 209.182.176.0 - 209.182.191.255
Block size: 4,096

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Cisco Systems, Inc
CISCO-RMS-01

CIDR: 66.187.208.0/20
IP Range: 66.187.208.0 - 66.187.223.255
Block size: 4,096

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Cisco Systems, Inc
CS-2825

CIDR: 200.194.240.0/21
IP Range: 200.194.240.0 - 200.194.247.255
Block size: 2,048

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Cisco Systems Inc
CS-2787

CIDR: 216.9.168.0/21
IP Range: 216.9.168.0 - 216.9.175.255
Block size: 2,048

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Cisco Systems, Inc
NETBLK-CISCO-CBLOCK

CIDR: 198.135.0.0/21
IP Range: 198.135.0.0 - 198.135.7.255
Block size: 2,048

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Cisco Systems Inc
CS-2787

CIDR: 104.156.40.0/21
IP Range: 104.156.40.0 - 104.156.47.255
Block size: 2,048

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Cisco Systems Inc
CETGOPS-SJC1-NET2

CIDR: 199.19.188.0/22
IP Range: 199.19.188.0 - 199.19.191.255
Block size: 1,024

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Cisco Systems Inc
CETGOPS-SJC1-NET1

CIDR: 204.16.208.0/22
IP Range: 204.16.208.0 - 204.16.211.255
Block size: 1,024

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Cisco Systems, Inc
CISCO-204

CIDR: 204.69.196.0/22
IP Range: 204.69.198.0 - 204.69.201.255
Block size: 1,024

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Cisco Systems, Inc
OORTIO-IPV4-01

CIDR: 172.98.16.0/22
IP Range: 172.98.16.0 - 172.98.19.255
Block size: 1,024

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Cisco Systems, Inc
TALOS

CIDR: 172.110.204.0/22
IP Range: 172.110.204.0 - 172.110.207.255
Block size: 1,024

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Cisco Systems, Inc
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

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Cisco Systems, Inc
UU-63-118-244

CIDR: 63.118.244.0/23
IP Range: 63.118.244.0 - 63.118.245.255
Block size: 512

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Cisco Systems, Inc
CISCO-EXTERNAL

CIDR: 192.135.240.0/23
IP Range: 192.135.240.0 - 192.135.241.255
Block size: 512

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Cisco Systems, Inc
TALOS

CIDR: 198.148.78.0/23
IP Range: 198.148.78.0 - 198.148.79.255
Block size: 512

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Cisco Systems, Inc
ATTENS-010392-005039

Linksys SBSBU

CIDR: 63.241.220.0/23
IP Range: 63.241.220.0 - 63.241.221.255
Block size: 512

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Cisco Systems Inc
NEWE-CISCOS-3

CIDR: 209.218.232.0/23
IP Range: 209.218.232.0 - 209.218.233.255
Block size: 512

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Cisco Systems, Inc
CISCO-TTNA

CIDR: 172.98.16.0/23
IP Range: 172.98.16.0 - 172.98.17.255
Block size: 512

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Cisco Systems, Inc
STO-ASIG-IPV4-01

CIDR: 172.98.18.0/23
IP Range: 172.98.18.0 - 172.98.19.255
Block size: 512

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Cisco Systems Inc
CS-2787

CIDR: 75.119.188.0/23
IP Range: 75.119.188.0 - 75.119.189.255
Block size: 512

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Cisco Systems
CISCO-SYSTEMS

CIDR: 213.244.157.0/24
IP Range: 213.244.157.0 - 213.244.157.255
Block size: 256

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Cisco Systems, Inc
UU-63-67-142-D1

CIDR: 63.67.142.0/24
IP Range: 63.67.142.0 - 63.67.142.255
Block size: 256

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Cisco Systems, Inc
UU-63-97-201

CIDR: 63.97.201.0/24
IP Range: 63.97.201.0 - 63.97.201.255
Block size: 256

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Cisco Systems, Inc
UU-63-98-9

CIDR: 63.98.9.0/24
IP Range: 63.98.9.0 - 63.98.9.255
Block size: 256

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Cisco Systems, Inc
CISCO-NET

CIDR: 192.31.7.0/24
IP Range: 192.31.7.0 - 192.31.7.255
Block size: 256

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Cisco Systems Inc
CISCO-SYSTEMS

CIDR: 63.160.45.0/24
IP Range: 63.160.45.0 - 63.160.45.255
Block size: 256

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Cisco Systems Inc
SPRINTLINK

CIDR: 63.162.55.0/24
IP Range: 63.162.55.0 - 63.162.55.255
Block size: 256

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Cisco Systems, Inc
SUN-FDDI

CIDR: 192.122.173.0/24
IP Range: 192.122.173.0 - 192.122.173.255
Block size: 256

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Cisco Systems, Inc
SUN-ETHER

CIDR: 192.122.174.0/24
IP Range: 192.122.174.0 - 192.122.174.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD1

CIDR: 192.135.239.0/24
IP Range: 192.135.239.0 - 192.135.239.255
Block size: 256

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Cisco Systems, Inc
CX-US-ENT-XAAS-EXG

CIDR: 192.135.242.0/24
IP Range: 192.135.242.0 - 192.135.242.255
Block size: 256

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Cisco Systems, Inc
CX-US-ENT-XAAS-EXG

CIDR: 192.135.243.0/24
IP Range: 192.135.243.0 - 192.135.243.255
Block size: 256

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Cisco Systems, Inc
CISCO-IOT

CIDR: 192.135.244.0/24
IP Range: 192.135.244.0 - 192.135.244.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD7

CIDR: 192.135.245.0/24
IP Range: 192.135.245.0 - 192.135.245.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD8

CIDR: 192.135.246.0/24
IP Range: 192.135.246.0 - 192.135.246.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD9

CIDR: 192.135.247.0/24
IP Range: 192.135.247.0 - 192.135.247.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD11

CIDR: 192.135.249.0/24
IP Range: 192.135.249.0 - 192.135.249.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD12

CIDR: 192.135.250.0/24
IP Range: 192.135.250.0 - 192.135.250.255
Block size: 256

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Cisco Systems, Inc
CISCO-TEST5

CIDR: 192.150.45.0/24
IP Range: 192.150.45.0 - 192.150.45.255
Block size: 256

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Cisco Systems, Inc
CISCO-FLD17

CIDR: 192.190.224.0/24
IP Range: 192.190.224.0 - 192.190.224.255
Block size: 256

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Cisco Systems, Inc
NET-198-62-154-0-1

CIDR: 198.62.154.0/24
IP Range: 198.62.154.0 - 198.62.154.255
Block size: 256

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Cisco Systems Inc
SPRINTLINK

CIDR: 198.67.1.0/24
IP Range: 198.67.1.0 - 198.67.1.255
Block size: 256

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Cisco Systems, Inc
SWLAB1

CIDR: 198.133.219.0/24
IP Range: 198.133.219.0 - 198.133.219.255
Block size: 256

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Cisco Systems, Inc
AWS-CISCO

CIDR: 13.210.74.0/24
IP Range: 13.210.74.0 - 13.210.74.255
Block size: 256

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Cisco Systems, Inc
AWS-CISCO

CIDR: 13.210.75.0/24
IP Range: 13.210.75.0 - 13.210.75.255
Block size: 256

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Cisco Systems, Inc
ACCEDIAN-2

CIDR: 45.45.157.0/24
IP Range: 45.45.157.0 - 45.45.157.255
Block size: 256

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Cisco Systems Inc
AWS-CISCO

CIDR: 34.211.10.0/24
IP Range: 34.211.10.0 - 34.211.10.255
Block size: 256

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Cisco Systems Inc
ATWORK-63369-53913

CIDR: 209.218.84.0/24
IP Range: 209.218.84.0 - 209.218.84.255
Block size: 256

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Cisco Systems, Inc
CT-240906-131-226-217-0-24

SFO

CIDR: 131.226.217.0/24
IP Range: 131.226.217.0 - 131.226.217.255
Block size: 256

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Cisco Systems Inc
CS-2787

CIDR: 170.76.240.0/24
IP Range: 170.76.240.0 - 170.76.240.255
Block size: 256

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Cisco Systems Inc
CISCO-SY61-230

CIDR: 12.153.230.0/24
IP Range: 12.153.230.0 - 12.153.230.255
Block size: 256

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Cisco Systems Inc
CISCO-SY61-231

CIDR: 12.153.231.0/24
IP Range: 12.153.231.0 - 12.153.231.255
Block size: 256

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Cisco Systems
SBCIS-1011026-1311

CIDR: 66.126.210.0/24
IP Range: 66.126.210.0 - 66.126.210.255
Block size: 256

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Cisco Systems, Inc
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

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Cisco Systems, Inc
UU-65-198-111

CIDR: 65.198.111.0/24
IP Range: 65.198.111.0 - 65.198.111.255
Block size: 256

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Cisco Systems
UU-65-200-192

CIDR: 65.200.192.0/24
IP Range: 65.200.192.0 - 65.200.192.255
Block size: 256

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Cisco Systems Inc
CISCO-SY61-236

CIDR: 12.190.236.0/24
IP Range: 12.190.236.0 - 12.190.236.255
Block size: 256

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Cisco Systems
SBCIS-10127-142735

CIDR: 64.171.105.0/24
IP Range: 64.171.105.0 - 64.171.105.255
Block size: 256

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Cisco Systems
SBC07025203100024050901151137

CIDR: 70.252.31.0/24
IP Range: 70.252.31.0 - 70.252.31.255
Block size: 256

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Cisco Systems
SBC06421817200024050609101039

CIDR: 64.218.172.0/24
IP Range: 64.218.172.0 - 64.218.172.255
Block size: 256

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Cisco Systems Inc
CISCO-SY62-241-0

CIDR: 12.10.241.0/25
IP Range: 12.10.241.0 - 12.10.241.127
Block size: 128

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Cisco Systems Inc
AWS-CISCO

CIDR: 34.204.62.0/25
IP Range: 34.204.62.0 - 34.204.62.127
Block size: 128

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Cisco Systems Inc
AWS-CISCO

CIDR: 34.223.202.0/25
IP Range: 34.223.202.0 - 34.223.202.127
Block size: 128

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Cisco Systems, Inc
RSPC-477C193F-6B7E-44FF-B1F4-66DB21115D33

WebEX

CIDR: 146.20.192.128/25
IP Range: 146.20.192.128 - 146.20.192.255
Block size: 128

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Cisco Systems, Inc
RSPC-1C80111F-E93A-46BD-8EA0-B5BD172723DF

WebEX

CIDR: 146.20.193.0/25
IP Range: 146.20.193.0 - 146.20.193.127
Block size: 128

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Cisco Systems, Inc
RSPC-1106ACA2-4D64-424C-BF12-56F0E0801C41

WebEX

CIDR: 148.62.36.128/25
IP Range: 148.62.36.128 - 148.62.36.255
Block size: 128

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Cisco Systems, Inc
RSPC-81B2D737-7362-46C1-A337-A599C55EEBC6

WebEX

CIDR: 148.62.40.0/25
IP Range: 148.62.40.0 - 148.62.40.127
Block size: 128

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Cisco Systems Inc
CISCO-SY64-42-128

CIDR: 12.145.42.128/25
IP Range: 12.145.42.128 - 12.145.42.255
Block size: 128

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Cisco Systems
UU-63-110-75-D5

CIDR: 63.110.75.0/26
IP Range: 63.110.75.0 - 63.110.75.63
Block size: 64

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Cisco Systems
NET-MONKEYBRAINS

CIDR: 199.230.11.192/26
IP Range: 199.230.11.192 - 199.230.11.255
Block size: 64

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Cisco Systems, Inc
ATTENS-007902-003562

CIDR: 216.148.234.64/26
IP Range: 216.148.234.64 - 216.148.234.127
Block size: 64

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Cisco Systems
P10-8088-E040-26

CIDR: 128.136.224.64/26
IP Range: 128.136.224.64 - 128.136.224.127
Block size: 64

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Cisco Systems Inc
SBC07115300619226060214134537

CIDR: 71.153.6.192/26
IP Range: 71.153.6.192 - 71.153.6.255
Block size: 64

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Cisco Systems Inc
SBC07115607000026060214132846

CIDR: 71.156.70.0/26
IP Range: 71.156.70.0 - 71.156.70.63
Block size: 64

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Cisco Systems Inc
CISCO-SY435-7-64

CIDR: 12.167.7.64/26
IP Range: 12.167.7.64 - 12.167.7.127
Block size: 64

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Cisco Systems, Inc
AU-CISCO-NET

CIDR: 122.248.148.128/27
IP Range: 122.248.148.128 - 122.248.148.159
Block size: 32

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Cisco Systems, Inc
UU-63-80-224-32

CIDR: 63.80.224.32/27
IP Range: 63.80.224.32 - 63.80.224.63
Block size: 32

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Cisco Systems, Inc
UU-63-81-107-160

CIDR: 63.81.107.160/27
IP Range: 63.81.107.160 - 63.81.107.191
Block size: 32

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Cisco Systems, Inc
ABOV-T01143-209-133-126-192-27

CIDR: 209.133.126.192/27
IP Range: 209.133.126.192 - 209.133.126.223
Block size: 32

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Cisco Systems, Inc
BLS-68-208-4-128-27-1006234912

ASM LAN

CIDR: 68.208.4.128/27
IP Range: 68.208.4.128 - 68.208.4.159
Block size: 32

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Cisco Systems
SBC06414918703227060315115102

CIDR: 64.149.187.32/27
IP Range: 64.149.187.32 - 64.149.187.63
Block size: 32

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Cisco Systems
NEXTWEB-67-203-152-224-27

CIDR: 67.203.152.224/27
IP Range: 67.203.152.224 - 67.203.152.255
Block size: 32

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Cisco Systems, Inc
UU-65-196-163-160

CIDR: 65.196.163.160/27
IP Range: 65.196.163.160 - 65.196.163.191
Block size: 32

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Cisco Systems, Inc
RACKS-8-1389717975762428

CIDR: 74.205.0.128/27
IP Range: 74.205.0.128 - 74.205.0.159
Block size: 32

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Cisco Systems, Inc
BLS-74-231-18-192-27-1006234933

ASM LAN

CIDR: 74.231.18.192/27
IP Range: 74.231.18.192 - 74.231.18.223
Block size: 32

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Cisco Systems
69-2-63-16-28

CIDR: 69.2.63.16/28
IP Range: 69.2.63.16 - 69.2.63.31
Block size: 16

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Cisco Systems
SDCS-NETWORK

CIDR: 199.115.169.64/28
IP Range: 199.115.169.64 - 199.115.169.79
Block size: 16

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Cisco Systems, Inc
UU-63-110-184-192

CIDR: 63.110.184.192/28
IP Range: 63.110.184.192 - 63.110.184.207
Block size: 16

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157 more networks >>