Autonomous System details

AS109

CISCO SYSTEMS, INC. · cisco.com

United States

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AS109 – CISCO SYSTEMS, INC.

Field	Value
Country	United States
Website	cisco.com
Hosted domains	823
IPv4 addresses	1,149,696
IPv6 addresses	100,216,323,668,593,915,113,400,000,000
ASN type	Business
Registry	arin
Allocated	39 years ago on May 06, 1987
Updated	3 years ago on Sep 12, 2023

Netblock	Company	Num of IPs
171.68.0.0/14	CISCO SYSTEMS, INC.	262,144
173.36.0.0/14	CISCO SYSTEMS, INC.	262,144
64.100.0.0/16	CISCO SYSTEMS, INC.	65,536
64.102.0.0/16	CISCO SYSTEMS, INC.	65,536
64.103.0.0/16	CISCO SYSTEMS, INC.	65,536
64.104.0.0/16	CISCO SYSTEMS, INC.	65,536
72.163.0.0/16	CISCO SYSTEMS, INC.	65,536
128.107.0.0/16	CISCO SYSTEMS, INC.	65,536
144.254.0.0/16	CISCO SYSTEMS, INC.	65,536
161.44.0.0/16	CISCO SYSTEMS, INC.	65,536
64.103.0.0/17	CISCO SYSTEMS, INC.	32,768
64.103.128.0/17	CISCO SYSTEMS, INC.	32,768
173.36.0.0/17	CISCO SYSTEMS, INC.	32,768
173.38.0.0/17	CISCO SYSTEMS, INC.	32,768
173.38.128.0/17	CISCO SYSTEMS, INC.	32,768
64.101.0.0/18	CISCO SYSTEMS, INC.	16,384
64.101.64.0/18	CISCO SYSTEMS, INC.	16,384
64.101.128.0/18	CISCO SYSTEMS, INC.	16,384
64.104.0.0/18	CISCO SYSTEMS, INC.	16,384
64.104.192.0/18	CISCO SYSTEMS, INC.	16,384
72.163.0.0/18	CISCO SYSTEMS, INC.	16,384
72.163.128.0/18	CISCO SYSTEMS, INC.	16,384
173.37.64.0/18	CISCO SYSTEMS, INC.	16,384
173.37.192.0/18	CISCO SYSTEMS, INC.	16,384
173.39.0.0/18	CISCO SYSTEMS, INC.	16,384
64.101.96.0/19	CISCO SYSTEMS, INC.	8,192
64.101.192.0/19	CISCO SYSTEMS, INC.	8,192
64.101.224.0/19	CISCO SYSTEMS, INC.	8,192
64.103.64.0/19	CISCO SYSTEMS, INC.	8,192
64.104.64.0/19	CISCO SYSTEMS, INC.	8,192
64.104.96.0/19	CISCO SYSTEMS, INC.	8,192
64.104.128.0/19	CISCO SYSTEMS, INC.	8,192
64.104.160.0/19	CISCO SYSTEMS, INC.	8,192
72.163.96.0/19	CISCO SYSTEMS, INC.	8,192
72.163.192.0/19	CISCO SYSTEMS, INC.	8,192
72.163.224.0/19	CISCO SYSTEMS, INC.	8,192
173.37.128.0/19	CISCO SYSTEMS, INC.	8,192
173.37.160.0/19	CISCO SYSTEMS, INC.	8,192
173.39.64.0/19	CISCO SYSTEMS, INC.	8,192
173.39.96.0/19	CISCO SYSTEMS, INC.	8,192
173.39.128.0/19	CISCO SYSTEMS, INC.	8,192
173.39.160.0/19	CISCO SYSTEMS, INC.	8,192
192.133.192.0/19	CISCO SYSTEMS, INC.	8,192
216.128.32.0/19	CISCO SYSTEMS, INC.	8,192
64.103.96.0/20	CISCO SYSTEMS, INC.	4,096
66.187.208.0/20	CISCO SYSTEMS, INC.	4,096
72.163.64.0/20	CISCO SYSTEMS, INC.	4,096
72.163.80.0/20	CISCO SYSTEMS, INC.	4,096
173.37.0.0/20	CISCO SYSTEMS, INC.	4,096
173.37.16.0/20	CISCO SYSTEMS, INC.	4,096
173.39.192.0/20	CISCO SYSTEMS, INC.	4,096
192.133.224.0/20	CISCO SYSTEMS, INC.	4,096
12.19.88.0/21	AT&T Enterprises, LLC	2,048
64.103.40.0/21	CISCO SYSTEMS, INC.	2,048
64.103.48.0/21	CISCO SYSTEMS, INC.	2,048
173.39.144.0/21	CISCO SYSTEMS, INC.	2,048
173.39.152.0/21	CISCO SYSTEMS, INC.	2,048
198.135.0.0/21	CISCO SYSTEMS, INC.	2,048
12.159.148.0/22	CISCO SYSTEMS, INC.	1,024
72.163.248.0/22	CISCO SYSTEMS, INC.	1,024
103.60.32.0/22	Cisco Systems (China) Networking Technology Co., Ltd.	1,024
111.223.8.0/22	Cisco Systems (China) Networking Technology Co., Ltd.	1,024
192.118.76.0/22	Cisco Systems Israel Ltd.	1,024
192.133.240.0/22	CISCO SYSTEMS, INC.	1,024
12.5.186.0/23	CISCO SYSTEMS, INC	512
64.104.204.0/23	CISCO SYSTEMS, INC.	512
64.104.206.0/23	CISCO SYSTEMS, INC.	512
72.163.240.0/23	CISCO SYSTEMS, INC.	512
128.107.0.0/23	CISCO SYSTEMS, INC.	512
128.107.2.0/23	CISCO SYSTEMS, INC.	512
128.107.4.0/23	CISCO SYSTEMS, INC.	512
128.107.6.0/23	CISCO SYSTEMS, INC.	512
128.107.8.0/23	CISCO SYSTEMS, INC.	512
128.107.10.0/23	CISCO SYSTEMS, INC.	512
128.107.12.0/23	CISCO SYSTEMS, INC.	512
128.107.14.0/23	CISCO SYSTEMS, INC.	512
128.107.18.0/23	CISCO SYSTEMS, INC.	512
128.107.20.0/23	CISCO SYSTEMS, INC.	512
128.107.22.0/23	CISCO SYSTEMS, INC.	512
128.107.24.0/23	CISCO SYSTEMS, INC.	512
128.107.38.0/23	CISCO SYSTEMS, INC.	512
128.107.40.0/23	CISCO SYSTEMS, INC.	512
128.107.54.0/23	CISCO SYSTEMS, INC.	512
173.39.200.0/23	CISCO SYSTEMS, INC.	512
204.69.198.0/23	CISCO SYSTEMS, INC.	512
64.102.249.0/24	CISCO SYSTEMS, INC.	256
64.104.124.0/24	CISCO SYSTEMS, INC.	256
72.163.4.0/24	CISCO SYSTEMS, INC.	256
72.163.7.0/24	CISCO SYSTEMS, INC.	256
173.37.145.0/24	CISCO SYSTEMS, INC.	256
192.135.250.0/24	CISCO SYSTEMS, INC.	256
198.133.219.0/24	CISCO SYSTEMS, INC.	256
204.69.200.0/24	CISCO SYSTEMS, INC.	256

Netblock	Company
2001:420::/32	CISCO SYSTEMS, INC.
2001:420:2000::/35	CISCO SYSTEMS, INC.
2001:420:4000::/36	CISCO SYSTEMS, INC.
2001:420:5000::/39	CISCO SYSTEMS, INC.
2001:420:5200::/39	CISCO SYSTEMS, INC.
2001:420:5400::/39	CISCO SYSTEMS, INC.
2001:420:5600::/39	CISCO SYSTEMS, INC.
2001:420:5800::/39	CISCO SYSTEMS, INC.
2001:420:5a00::/39	CISCO SYSTEMS, INC.
2001:420:5c00::/39	CISCO SYSTEMS, INC.
2001:420:5e00::/39	CISCO SYSTEMS, INC.
2001:420:1000::/40	CISCO SYSTEMS, INC.
2001:420:4000::/40	CISCO SYSTEMS, INC.
2001:420:1100::/41	CISCO SYSTEMS, INC.
2001:420:1180::/41	CISCO SYSTEMS, INC.
2001:420:1200::/41	CISCO SYSTEMS, INC.
2001:420:4480::/45	CISCO SYSTEMS, INC.
2001:420:c110::/45	CISCO SYSTEMS, INC.
2001:420:c0c0::/46	CISCO SYSTEMS, INC.
2001:420:c0c4::/46	CISCO SYSTEMS, INC.
2001:420:c0cc::/46	CISCO SYSTEMS, INC.
2001:420:c0d0::/46	CISCO SYSTEMS, INC.
2001:420:c0d4::/46	CISCO SYSTEMS, INC.
2001:420:c0d8::/46	CISCO SYSTEMS, INC.
2001:420:c0dc::/46	CISCO SYSTEMS, INC.
2001:420:c0e0::/46	CISCO SYSTEMS, INC.
2001:420:c0ec::/46	CISCO SYSTEMS, INC.
2001:420:c0f8::/46	CISCO SYSTEMS, INC.
2001:420:c130::/46	CISCO SYSTEMS, INC.
2001:420:c134::/46	CISCO SYSTEMS, INC.
2001:420:c138::/46	CISCO SYSTEMS, INC.
2001:420:c128::/47	CISCO SYSTEMS, INC.
2001:420:88::/48	CISCO SYSTEMS, INC.
2001:420:89::/48	CISCO SYSTEMS, INC.
2001:420:8a::/48	CISCO SYSTEMS, INC.
2001:420:8b::/48	CISCO SYSTEMS, INC.
2001:420:8c::/48	CISCO SYSTEMS, INC.
2001:420:8d::/48	CISCO SYSTEMS, INC.
2001:420:8e::/48	CISCO SYSTEMS, INC.
2001:420:8f::/48	CISCO SYSTEMS, INC.
2001:420:91::/48	CISCO SYSTEMS, INC.
2001:420:92::/48	CISCO SYSTEMS, INC.
2001:420:93::/48	CISCO SYSTEMS, INC.

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WHOIS Details

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                                                ASHandle:       AS109
                                                OrgID:          AS109
                                                ASName:         AS109
                                                ASNumber:       AS109
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 823 domain names hosted across 64 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
72.163.4.154	██████████	735
198.133.219.23	██████████	22
173.37.145.103	██████████	4
72.163.4.185	█████████	3
128.107.236.132	██████████	3
64.103.25.233	██████████	3
173.37.145.112	██████████	2
64.100.15.161	██████████	2
64.100.58.92	██████████	1
171.71.189.58	██████████	1

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Peers

There are 20 peers for this ASN.

Peers	Name
AS11164	Internet2
AS1221	Telstra Limited
AS1299	Arelion Sweden AB
AS1680	Cellcom Fixed Line Communication L.P
AS17621	China Unicom Shanghai network
AS2764	AAPT Limited
AS3356	Level 3 Parent, LLC
AS3491	PCCW Global (HK) Ltd.
AS4637	Telstra Global
AS4657	StarHub Ltd
AS4755	TATA Communications formerly VSNL is Leading ISP
AS4812	China Telecom (Group)
AS5713	Telkom SA Ltd.
AS6939	Hurricane Electric LLC
AS701	Verizon Business
AS7018	AT&T Enterprises, LLC
AS7473	Singapore Telecommunications Ltd
AS8220	COLT Technology Services Group Limited
AS8551	Bezeq International Ltd.
AS9498	BHARTI Airtel Ltd.

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Upstreams

There are 17 upstreams for this ASN.

upstreams	Name
AS1221	Telstra Limited
AS1299	Arelion Sweden AB
AS1680	Cellcom Fixed Line Communication L.P
AS17621	China Unicom Shanghai network
AS2764	AAPT Limited
AS3356	Level 3 Parent, LLC
AS3491	PCCW Global (HK) Ltd.
AS4637	Telstra Global
AS4657	StarHub Ltd
AS4755	TATA Communications formerly VSNL is Leading ISP
AS4812	China Telecom (Group)
AS6939	Hurricane Electric LLC
AS701	Verizon Business
AS7018	AT&T Enterprises, LLC
AS7473	Singapore Telecommunications Ltd
AS8551	Bezeq International Ltd.
AS9498	BHARTI Airtel Ltd.

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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

404 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
173.38.221.172	AS109 CISCO SYSTEMS, INC.	`8.36ms` from Amsterdam, NL
144.254.51.241	AS109 CISCO SYSTEMS, INC.	`12.50ms` from Amsterdam, NL
173.38.223.34	AS109 CISCO SYSTEMS, INC.	`0.94ms` from Amsterdam, NL
173.39.90.102	AS109 CISCO SYSTEMS, INC.	`1.23ms` from Bengaluru, IN
72.163.15.66	AS109 CISCO SYSTEMS, INC.	`1.56ms` from Dallas, US
72.163.5.5	AS109 CISCO SYSTEMS, INC.	`1.63ms` from Dallas, US
173.37.150.250	AS109 CISCO SYSTEMS, INC.	`1.26ms` from Dallas, US
192.133.195.98	AS109 CISCO SYSTEMS, INC.	`1.96ms` from Durham, US
64.101.36.7	AS109 CISCO SYSTEMS, INC.	`1.80ms` from Durham, US
64.100.4.37	AS109 CISCO SYSTEMS, INC.	`2.69ms` from Durham, US
2001:420:2041:3003::6	AS109 CISCO SYSTEMS, INC.	`2.01ms` from Durham, US
173.37.56.10	AS109 CISCO SYSTEMS, INC.	`1.35ms` from Fremont, US
173.36.225.35	AS109 CISCO SYSTEMS, INC.	`1.64ms` from Fremont, US
173.36.232.70	AS109 CISCO SYSTEMS, INC.	`1.29ms` from Fremont, US
2001:420:a1:20::	AS109 CISCO SYSTEMS, INC.	`1.11ms` from San Jose, US
173.39.117.193	AS109 CISCO SYSTEMS, INC.	`2.30ms` from Singapore, SG
2001:420:5041:10::	AS109 CISCO SYSTEMS, INC.	`1.31ms` from Sydney, AU
64.104.126.49	AS109 CISCO SYSTEMS, INC.	`41.21ms` from Tokyo, JP
2001:420:4800:11e::	AS109 CISCO SYSTEMS, INC.	`8.36ms` from Amsterdam, NL
2001:420:4621::ad26:d496	AS109 CISCO SYSTEMS, INC.	`1.19ms` from Amsterdam, NL
173.38.220.18	AS109 CISCO SYSTEMS, INC.	`0.93ms` from Amsterdam, NL
173.38.154.242	AS109 CISCO SYSTEMS, INC.	`1.84ms` from Amsterdam, NL
2001:420:8f:6::1	AS109 CISCO SYSTEMS, INC.	`1.22ms` from Bengaluru, IN
173.36.125.1	AS109 CISCO SYSTEMS, INC.	`1.32ms` from Dallas, US
173.36.120.131	AS109 CISCO SYSTEMS, INC.	`1.31ms` from Dallas, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
71.232.130.141	AS7922 Comcast Cable Communications, LLC	`6.70ms` from Boston, US
67.149.241.77	AS12083 WideOpenWest Finance LLC	`11.27ms` from Chicago, US
107.217.143.77	AS7018 AT&T Enterprises, LLC	`10.40ms` from Dallas, US
23.210.123.93	AS16625 Akamai Technologies, Inc.	`0.23ms` from Frankfurt am Main, DE
217.94.15.13	AS3320 Deutsche Telekom AG	`4.18ms` from Frankfurt am Main, DE
4.226.195.189	AS8075 Microsoft Corporation	`0.72ms` from Geneve, CH
38.172.131.173	AS273133 CONEX TV E.I.R.L.	`0.38ms` from Lima, PE
171.39.1.13	AS4837 CHINA UNICOM China169 Backbone	`9.90ms` from Liuzhou, CN
146.177.26.45	AS15395 Rackspace Ltd.	`1.94ms` from London, GB
88.61.146.29	AS3269 Telecom Italia S.p.A.	`5.76ms` from Milan, IT
178.167.121.173	AS21453 Flex Ltd.	`2.48ms` from Moscow, RU
150.129.52.253	AS45916 Gujarat Telelink Pvt Ltd	`4.75ms` from Mumbai, IN
42.186.28.173	AS45062 Netease Network	`3.17ms` from Ningbo, CN
112.249.91.157	AS4837 CHINA UNICOM China169 Backbone	`8.09ms` from Qingdao, CN
80.11.202.221	AS3215 Orange S.A.	`6.37ms` from Saint-Denis, FR
13.61.228.237	AS16509 Amazon.com, Inc.	`1.00ms` from Stockholm, SE
143.106.239.221	AS53187 UNIVERSIDADE ESTADUAL DE CAMPINAS	`8.79ms` from São Paulo, BR
109.99.21.125	AS9050 Orange Romania S.A.	`0.51ms` from Timisoara, RO
129.97.243.45	AS12093 University of Waterloo	`2.47ms` from Toronto, CA
97.219.108.125	AS6167 Verizon Business	`15.84ms` from Atlanta, US
97.237.148.237	AS6167 Verizon Business	`17.39ms` from Atlanta, US
136.248.217.253	AS31898 Oracle Corporation	`0.38ms` from Dallas, US
50.147.138.189	AS7922 Comcast Cable Communications, LLC	`1.21ms` from Denver, US
89.146.193.221	AS8495 INTERNET AG Global Network	`0.35ms` from Frankfurt am Main, DE
188.124.183.189	AS34999 PRO INTERNET Sp. z o.o.	`1.13ms` from Gdansk, PL

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f3 -m10 161.44.2.189

traceroute to 161.44.2.189 (161.44.2.189): 10 hops max, 52 byte packets

3 [] 185.156.45.159 0.162 ms

4 *

5 [AS3356] 4.69.137.185 91.257 ms

6 [AS3356] 4.71.162.2 92.601 ms

7 [AS109] 128.107.6.9 93.378 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On April 24th 2026

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What is an ASN?

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 AS109 at robtex.

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