Autonomous System details

AS109

CISCO SYSTEMS, INC. · cisco.com

United States

Crawler

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AS109 – CISCO SYSTEMS, INC.

Field	Value
Country	United States
Website	cisco.com
Hosted domains	821
IPv4 addresses	1,148,672
IPv6 addresses	100,213,905,816,954,685,437,268,459,520
ASN type	Business
Registry	arin
Allocated	39 years ago on May 06, 1987
Updated	2 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
72.163.80.0/20	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
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	AT&T Enterprises, LLC	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.
2001:420:88::/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 821 domain names hosted across 62 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
72.163.4.154	██████████	747
72.163.4.185	█████████	25
198.133.219.23	██████████	21
173.37.145.112	██████████	4
173.37.145.103	██████████	4
64.103.25.233	██████████	3
128.107.236.132	██████████	3
173.37.144.211	██████████	2
128.107.248.220	██████████	1
72.163.4.74	██████████	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
AS3356	Level 3 Parent, LLC
AS3491	PCCW Global, Inc.
AS3758	SingNet
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
AS7545	TPG Telecom Limited
AS8220	COLT Technology Services Group Limited
AS8551	Bezeq International Ltd.
AS9498	BHARTI Airtel Ltd.

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ASN API & Database

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
AS3356	Level 3 Parent, LLC
AS3491	PCCW Global, Inc.
AS3758	SingNet
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
AS7545	TPG Telecom Limited
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

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

IP Address	ASN	Details
173.38.152.21	AS109 CISCO SYSTEMS, INC.	`1.82ms` from Amsterdam, NL
2001:420:4800:11e::1	AS109 CISCO SYSTEMS, INC.	`8.43ms` from Amsterdam, NL
173.39.91.228	AS109 CISCO SYSTEMS, INC.	`1.28ms` from Bengaluru, IN
72.163.1.98	AS109 CISCO SYSTEMS, INC.	`1.81ms` from Dallas, US
173.36.106.1	AS109 CISCO SYSTEMS, INC.	`1.41ms` from Dallas, US
64.100.8.161	AS109 CISCO SYSTEMS, INC.	`1.89ms` from Durham, US
64.100.59.34	AS109 CISCO SYSTEMS, INC.	`1.96ms` from Durham, US
64.100.6.17	AS109 CISCO SYSTEMS, INC.	`2.86ms` from Durham, US
192.133.218.132	AS109 CISCO SYSTEMS, INC.	`1.68ms` from Durham, US
173.37.54.221	AS109 CISCO SYSTEMS, INC.	`1.42ms` from Fremont, US
128.107.85.118	AS109 CISCO SYSTEMS, INC.	`1.55ms` from Fremont, US
128.107.231.240	AS109 CISCO SYSTEMS, INC.	`1.58ms` from Fremont, US
128.107.8.6	AS109 CISCO SYSTEMS, INC.	`0.38ms` from London, GB
173.39.116.6	AS109 CISCO SYSTEMS, INC.	`2.45ms` from Singapore, SG
2001:420:1202::2	AS109 CISCO SYSTEMS, INC.	`1.72ms` from Dallas, US
2001:420:8a:8::1	AS109 CISCO SYSTEMS, INC.	`1.57ms` from Dallas, US
173.36.122.5	AS109 CISCO SYSTEMS, INC.	`1.35ms` from Dallas, US
173.37.223.4	AS109 CISCO SYSTEMS, INC.	`1.69ms` from Dallas, US
173.36.107.1	AS109 CISCO SYSTEMS, INC.	`1.39ms` from Dallas, US
64.100.3.4	AS109 CISCO SYSTEMS, INC.	`1.90ms` from Durham, US
64.100.14.220	AS109 CISCO SYSTEMS, INC.	`28.26ms` from Durham, US
64.102.246.18	AS109 CISCO SYSTEMS, INC.	`1.90ms` from Durham, US
64.100.1.34	AS109 CISCO SYSTEMS, INC.	`1.92ms` from Durham, US
128.107.225.204	AS109 CISCO SYSTEMS, INC.	`1.47ms` from Fremont, US
173.36.218.193	AS109 CISCO SYSTEMS, INC.	`1.42ms` from Fremont, 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
128.136.170.45	AS13649 Flexential Colorado Corp.	`2.94ms` from Ashburn, US
168.87.141.93	AS3360 DXC US Latin America Corporation	`2.46ms` from Atlanta, US
107.217.143.77	AS7018 AT&T Enterprises, LLC	`10.02ms` from Dallas, US
94.202.209.29	AS15802 Emirates Integrated Telecommunications Company PJSC	`2.08ms` from Dubai, AE
20.93.3.173	AS8075 Microsoft Corporation	`0.17ms` from Dublin, IE
176.251.158.109	AS5607 Sky UK Limited	`2.27ms` from Erith, GB
68.36.156.189	AS7922 Comcast Cable Communications, LLC	`7.48ms` from Flint, US
82.5.237.45	AS5089 Virgin Media Limited	`8.83ms` from London, GB
77.68.109.125	AS8560 IONOS SE	`5.16ms` from London, GB
34.149.194.237	AS396982 Google LLC	`0.07ms` from Melbourne, AU
188.186.132.13	AS47911 JSC "ER-Telecom Holding"	`1.36ms` from Moscow, RU
91.192.41.45	AS60164 Webtrekk GmbH	`3.26ms` from Nuernberg, DE
219.124.169.77	AS7522 STNet, Incorporated	`6.88ms` from Osaka, JP
46.234.166.253	AS56360 TRINITY CZECH REPUBLIC, s.r.o.	`2.90ms` from Prague, CZ
185.250.82.157	AS57799 SAUDI CREDIT INFORMATION CJSC	`10.13ms` from Riyadh, SA
72.107.32.13	AS6167 Verizon Business	`14.58ms` from San Jose, US
51.175.247.61	AS29695 Altibox AS	`6.39ms` from Sandefjord, NO
177.132.164.141	AS18881 TELEFÔNICA BRASIL S.A	`8.63ms` from Sao Paulo, BR
13.125.173.13	AS16509 Amazon.com, Inc.	`0.21ms` from Seoul, KR
202.248.37.77	AS55374 FUJITSU LIMITED	`4.03ms` from Tokyo, JP
129.97.243.45	AS12093 University of Waterloo	`2.39ms` from Toronto, CA
89.229.39.157	AS21021 Multimedia Polska Sp. z o.o.	`19.29ms` from Warsaw, PL
24.206.64.125	AS55256 Netskope Inc	`0.16ms` from Atlanta, US
107.221.95.221	AS7018 AT&T Enterprises, LLC	`11.66ms` from Atlanta, US
181.234.72.157	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`18.49ms` from Bogota, CO

Traceroute

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

traceroute -a -n -q1 -f4 -m12 173.39.33.39

traceroute to 173.39.33.39 (173.39.33.39): 12 hops max, 52 byte packets

4 [AS37282] 102.130.226.34 110.274 ms

5 *

6 *

7 [AS9498] 202.56.248.34 305.25 ms

8 [AS109] 128.107.14.5 334.194 ms

9 [AS109] 72.163.216.10 305.428 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Abidjan, CI

On December 28th 2025

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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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