Skip to main content
Geo IP Tool
Search
Learn
GeoIPTool© 2025
Resources
OrganizationsLearn & GuidesTools
Tools
PingDNS LookupNetwork Search
Legal
Privacy PolicyAboutImprint

Organizations in Castro Valley

Back to City Directory

12 Organizations
Comcast Cable

Comcast Cable

IP Ranges
96,034
Total IPs
60,831,058
AS33667
US
DK
Chicago
Houston
Denver
+2447 more
AT&T Internet

AT&T Internet

IP Ranges
53,811
Total IPs
74,819,537
AS7018
US
GB
CA
+8 more
Houston
Chicago
San Diego
+1629 more
Verizon 5g Home Internet

Verizon 5g Home Internet

IP Ranges
9,772
Total IPs
8,582,292
AS6167
US
Phoenix
Chicago
Charlotte
+1057 more
Comcast Business

Comcast Business

IP Ranges
8,776
Total IPs
7,365,080
AS53851
US
Denver
Portland
Atlanta
+2019 more
Verizon Wireless

Verizon Wireless

IP Ranges
7,440
Total IPs
21,979,101
AS6167
US
CR
Salt Lake City
Nashville
Fort Worth
+749 more
Sonic.net, LLC

Sonic.net, LLC

IP Ranges
1,821
Total IPs
917,432
AS46375
US
San Francisco
Santa Rosa
Oakland
+58 more
California Research and Education Network

California Research and Education Network

IP Ranges
416
Total IPs
1,880,064
AS2152
US
Los Angeles
San Diego
San Francisco
+108 more
GeoLinks

GeoLinks

IP Ranges
111
Total IPs
72,959
AS54483
US
Mission Viejo
Fullerton
San Jose
+33 more
Alameda County Office of Education

Alameda County Office of Education

IP Ranges
24
Total IPs
151,040
AS6099
US
Pleasanton
Union City
Newark
+2 more
Unwired

Unwired

IP Ranges
11
Total IPs
14,848
AS24183
US
NZ
Castro Valley
Menlo Park
Canyon
+5 more
Shasta County Office of Education

Shasta County Office of Education

IP Ranges
4
Total IPs
16,640
AS23483
US
Redding
Castro Valley
Alameda County Library

Alameda County Library

IP Ranges
1
Total IPs
1,024
AS394435
US
Castro Valley