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Home Services Domain Registration under .US

Domain Registrations under .US

Official information from the US Domain Name Registration Service is available.

Information on domain administration by the PSC:

If you have any questions not addressed here, or need additional clarification, feel free to contact us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

General Domain information

Information on domains may be viewed via Rwhois.

It is not a requirement that domain information be available via Rwhois or Whois. The databases are separate from DNS, though they are created from the same templates submitted to acquire or modify a domain.

In some cases, domains delegated by the Pittsburgh Supercomputing Center do not appear in Rwhois since they were created before the database existed. Our Rwhois server is at, and runs on port 4321.

Authoritative information can be obtained using a DNS query tool like dig or nslookup. If you are able to obtain NS records for a domain, then that domain exists. You can point your query tool to for domains that we serve information on.

Please note that some domains may be temporarily disabled, unreachable, or suspended.

Delegations vs. DNS service

We often get calls from people who have been told that their connectivity problems are due to a problem in the K12.PA.US domain. We simply delegate (unless other arrangements have been made). This means that we simply list the Primary and Secondary servers for a given domain. If there is a problem with hostname resolutions, the administrators for those machines should be contacted. If they then determine that there is a problem with our delegations, they will contact us.

More specific information on domains that PSC delegates under PA.US is given below.

Applying for or modifying a domain name

To apply for a new domain name, delete an old one, or modify an existing one, submit a completed plain text version of the Domain Registration Template to This e-mail address is being protected from spambots. You need JavaScript enabled to view it .


To prevent network problems from causing a domain to be unreachable, each domain is required to have two physically distinct and geographically separated domain name servers. Not supplying two such names and addresses can delay or prevent your application from being processed.


We currently do not charge for handling delegations, but do so as a free service to our region. If this changes, ample notification will be sent to all listed administrative contacts.


It is REQUIRED that all contacts have valid email address and telephone numbers. Administrative Contacts must be personnel actually located at the organization represented by the domain name.


The domain name is "owned" by the organizations represented by the domain name, not the organization supplying the DNS nor the person(s) applying for the domain name.

Domain suspensions

At any time when a domain becomes problematic and contact information is invalid, out-of-date, or non-existent, a domain can be suspended (placed "on-hold"). A domain becomes problematic when the name servers no longer exist, no longer serve the domain in question, or when other DNS-based problems arise that can increase the load on our servers which are responsible for delegating. When these types of problems arise, technical contacts are notified via email. If the problems are not corrected, we will notify the administrative contacts and managers of the servers listed, and take other possible routes to resolution. If the problem is still not resolved, the domain will be suspended. In general, we will not reassign the domain. Information will still exist in the Rwhois database, but we will no longer delegate the domain. This will make the domain appear non-existent via any and all DNS queries. In most cases, the domain will have already become unreachable at this point.


We reserve the right to revoke a domain name if any policies are broken. Applying for a second domain name in the cases where only one is allowed can cause the previous domain name to be revoked or the refusal of a new one to be granted. In most cases, we will warn prior to revocation. It is very important that you are aware of these policies and follow them, to prevent confusion and loss of connectivity due to such revocations.

Processing time

We process applications twice weekly; however, in some cases it can take a week or more. Errors in a template can sometimes go unnoticed, as they are processed by programs and not manually entered. We do not correct or otherwise change templates, but will return them for correction to the party who submitted them.


After processing, notification will be sent to the submitter, and if contact information has changed, to the current listed contacts. If the authenticity of the change is questioned, the current contacts will be notified before the application is processed. Therefore it is necessary to maintain up-to-date contact information. Submissions must be made from a valid account that can receive email. If notifications are undeliverable to the requester, the changes can be revoked without prior notice.


There may be exceptions to the US Domain policies as well as the PSC policies. Some domain names were granted before the policies were created, and these domains have been grandfathered. This is unavoidable.

In the case of a domain name being granted improperly because of an oversight, we will work with the organization to resolve the problem, but will not allow the oversight to remain. Great care is taken to assure that all policies are followed.

Domains delegated by the PSC under PA.US

SCHOOLS: We allow only one domain name per School District.

Domain Description
K12.PA.US Public School Districts (Kindergarten through grade 12)
PVT.K12.PA.US Private Kindergarten through grade 12 schools (tuition based or special admission requirements)
CC.PA.US Community Colleges
TEC.PA.US Technical schools


COUNTY/CITY: We delegate under several counties and cities in Southwestern Pennsylvania. In the case where a county name is also a city name (e.g. Washington), county governments are assigned CO.<county>.PA.US (e.g., and the city government is assigned CI.<county>.PA.US. (e.g.,

We delegate the following cities and counties in Pennsylvania:

  • Bedford
  • Blair
  • Butler
  • Chester
  • Clarion
  • Clearfield
  • Elk
  • Forest
  • Indiana
  • Lawrence
  • Somerset
Last Updated on Tuesday, 12 November 2013 20:49  


The Pittsburgh Supercomputing Center (PSC) and Fibertech Networks celebrated the opening of a PSC Point of Presence (PoP) in Fibertech's new collocation facility in Pittsburgh's Allegheny Center Mall on April 29th.