Data as of Nov 5, 2026
Autonomous system
AS21945
Harland Clarke Corp.
Announces 1,536 addresses in 5 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 12.97.128.0/24 since Jun 2021 | Business | AT&T Enterprises, LLC | |
| 12.97.129.0/24 since Jun 2021 | Business | AT&T Enterprises, LLC | |
| 12.190.116.0/23 since Dec 2013 | Business | AT&T Enterprises, LLC | |
| 12.190.118.0/24 since Dec 2013 | Business | AT&T Enterprises, LLC | |
| 12.190.119.0/24 since Dec 2013 | Business | AT&T Enterprises, LLC |
Network & history
Profile
- Registered
- Feb 7, 2006
- Domain
- harlandclarke.com
- Industry
- Software Development
Routing patterns
How its announcements have moved
Arrivals