128.107.4.0/23

AS109 · CISCO SYSTEMS, INC.

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Summary

Country	United States
Domain	cisco.com
ASN	AS109
Parent Range	128.107.0.0/16
Registry	ARIN
ID	CISCO-PRNET1

WHOIS Details

NetHandle:      NET-128-107-0-0-1
OrgID:          CS-2831
Parent:         NET-128-0-0-0-0
NetName:        CISCO-PRNET1
NetRange:       128.107.0.0 - 128.107.255.255
NetType:        allocation
Comment:        Geofeed https://www.cisco.com/web/automation/CiscoAS109_geoip.csv
RegDate:        1986-02-05
Updated:        2024-03-08
Source:         ARIN


OrgID:          CS-2831
OrgName:        CISCO SYSTEMS, INC.
CanAllocate:    
Street:         251 LITTLE FALLS DRIVE
City:           WILMINGTON
State/Prov:     DE
Country:        US
PostalCode:     19808
RegDate:        2023-06-07
Updated:        2024-02-16
OrgAdminHandle: GATC-ARIN
OrgTechHandle:  GATC-ARIN
OrgAbuseHandle: CISCO6-ARIN
OrgNOCHandle:   GATC-ARIN
Source:         ARIN


POCHandle:      GATC-ARIN
IsRole:         Y
LastName:       GIS ARIN Technical Contact
FirstName:      
Street:         170 West Tasman Dr.
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        2012-05-20
Updated:        2025-03-25
OfficePhone:    +1-408-526-8888
Mailbox:        arin-tech@cisco.com
Mailbox:        cidr-block-admins@cisco.com
Source:         ARIN


POCHandle:      CISCO6-ARIN
IsRole:         Y
LastName:       Cisco CSIRT
FirstName:      
Street:         7025 Kit Creek Road
City:           Research Triangle Park
State/Prov:     NC
Country:        US
PostalCode:     27709
RegDate:        2024-02-16
Updated:        2025-03-04
OfficePhone:    +1-408-527-3227
Mailbox:        csirt-notify@cisco.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 128.107.4.0/23

Range	ASN	Company	Num of IPs
128.107.0.0/16	AS109	CISCO SYSTEMS, INC.	65,536

Nearby Ranges

BGP prefixes that overlap with 128.107.0.0/16

Range	ASN	Company	Num of IPs
128.107.0.0/16	AS109	CISCO SYSTEMS, INC.	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
128.107.4.59	AS109 CISCO SYSTEMS, INC.	`1.25ms` 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
149.107.37.39	AS200736 MEDIANET INVEST AE	`1.19ms` from Athens, GR
75.162.230.135	AS209 CenturyLink Communications, LLC	`8.96ms` from Chicago, US
104.202.227.199	AS7459 Grande Communications Networks, LLC	`11.24ms` from Dallas, US
31.206.89.151	AS8386 Vodafone Net Iletisim Hizmetler AS	`12.21ms` from Istanbul, TR
88.15.113.71	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.44ms` from Madrid, ES
74.89.235.199	AS6128 Cablevision Systems Corp.	`6.92ms` from New York City, US
86.205.162.119	AS3215 Orange S.A.	`8.55ms` from Paris, FR
186.71.85.55	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`6.97ms` from Quito, EC
201.110.69.7	AS8151 UNINET	`3.53ms` from Santiago de Queretaro, MX
39.113.195.135	AS9318 SK Broadband Co Ltd	`7.42ms` from Seoul, KR
119.249.155.199	AS4837 CHINA UNICOM China169 Backbone	`9.85ms` from Tianjin, CN
77.166.204.215	AS1136 KPN B.V.	`1.25ms` from Amsterdam, NL
38.2.241.71	AS401377 PUMA SERVERS LLC	`0.41ms` from Ashburn, US
100.15.204.183	AS701 Verizon Business	`1.85ms` from Ashburn, US
98.227.90.167	AS7922 Comcast Cable Communications, LLC	`5.49ms` from Chicago, US
45.22.41.39	AS7018 AT&T Enterprises, LLC	`10.40ms` from Columbus, US
84.145.110.23	AS3320 Deutsche Telekom AG	`4.54ms` from Duesseldorf, DE
82.166.102.247	AS1680 Cellcom Fixed Line Communication L.P	`11.01ms` from Haifa, IL
103.87.242.215	AS135581 ONL-HK	`0.83ms` from Hong Kong, HK
92.20.165.215	AS13285 TalkTalk Communications Limited	`8.23ms` from Manchester, GB
195.243.96.103	AS3320 Deutsche Telekom AG	`1.20ms` from Nuernberg, DE
184.30.168.215	AS16625 Akamai Technologies, Inc.	`0.16ms` from Philadelphia, US
192.183.189.103	AS20055 Wholesail networks LLC	`7.99ms` from Quincy, US
106.2.82.87	AS45062 Netease-Network	`4.29ms` from Suzhou, CN
82.205.79.231	AS12975 PALTEL Autonomous System	`5.17ms` from Tel Aviv, IL

Traceroute

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

traceroute -a -n -q1 -f5 128.107.4.121

traceroute to 128.107.4.121 (128.107.4.121): 64 hops max, 52 byte packets

5 [AS6939] 216.66.79.74 1.784 ms

6 [AS109] 128.107.4.121 1.979 ms

Measurement taken from

IPinfo ProbeNet in Dallas, US

On November 14th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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