Skip to main content
IpToolsKit
Search
Learn
IpToolsKit© 2025
Resources
OrganizationsLearn & GuidesTools
Tools
PingDNS LookupSpeed Test
Legal
Privacy PolicyAboutImprint

12.21.155.0/24

United States

CIDR Block Overview

CIDR
12.21.155.0/24
Approx. Size
131,072 IPs
Mask
/15

Example IP Addresses

12.21.155.146
🇺🇸United States
12.21.155.192
🇺🇸United States
12.21.155.12
🇺🇸United States
12.21.155.240
🇺🇸United States
12.21.155.51
🇺🇸United States
12.21.155.161
🇺🇸United States
12.21.155.188
🇺🇸United States
12.21.155.129
🇺🇸United States

Network & Provider

Organization
AT&T Business
Autonomous System Number
AS6269

Geographic Location

Country
United States
US