-
miscellaneous | unclassified
-
Palestinian Return Centre
miscellaneous | unclassified
-
Packaging Research Center
academic & science | universities
-
governmental | us government
-
business | companies & firms
-
Public Regulation Commission
miscellaneous | unclassified
-
community | media
-
governmental | transportation
-
business | general
-
Privacy Rights Clearinghouse
miscellaneous | unclassified
-
miscellaneous | unclassified
-
Postal Regulatory Commission
miscellaneous | unclassified
-
People's Republic Of California
governmental | state & local
-
miscellaneous | funnies
-
Precision Response Corporation
business | companies & firms
-
Petroleum Research Center
academic & science | universities
-
medical | veterinary
-
Peer Reviewed Communication
miscellaneous | unclassified
-
Pesticide Residues Committee (of Defra)
medical | veterinary
-
Participatory Radio Campaign
miscellaneous | farming & agriculture
-
People's Republic Of China
governmental
-
Planned Retirement Community
miscellaneous | unclassified
-
academic & science | electronics
-
miscellaneous | unclassified
-
miscellaneous | usps
-
business | accounting
-
Planning Research Corporation
academic & science | ocean science
-
community | sports
-
Partially Resonant Circuit
academic & science | electronics
-
Partido Regionalista Cántabro
international | spanish
-
governmental | nasa
-
Packaging Resources Company
miscellaneous | unclassified
-
regional
-
Psychiatric Research Center
medical | psychiatry
-
Population Research Center
academic & science | universities
-
miscellaneous | unclassified
-
community | clubs
-
computing | networking
-
Professional Rodeo Cowboy
business | occupation & positions
-
miscellaneous | unclassified
-
People's Republic Of China (payload)
governmental | nasa
-
Pupil Rotation Compensation
community | educational
-
Professional Regulation Commission
business | general
-
Peoples Republic Of China / Mainland China
governmental | united nations
-
Populace And Resources Control
governmental | military
-
Professional Regulatory Commission
governmental | state & local
-
Precision Robustness And Classic
miscellaneous | unclassified
-
miscellaneous | unclassified
-
People's Republic Of China / Mainland China
governmental | us government
-
Proteomic Research Center
business | companies & firms
-
Pennsylvania Resources Council
miscellaneous | unclassified
-
community | educational
-
Panleukopenia, Rhinotracheitis, And Calici
medical | veterinary
-
Presidential Reserve Call-up
governmental | military
-
regional | airport codes
-
governmental | military
-
Pregnancy Resource Centers
miscellaneous | unclassified
-
Participatory Radio Campaign
community | media
-
miscellaneous | unclassified
-
Peoples Republic Of China (communist China)
governmental | military
-
community | non-profit organizations
-
Partido Revolucionario Comunista
international | spanish
-
People's Republic Of China (communist China)
regional | countries
-
Prevention Research Centers
academic & science | research
-
Private Rights Clearinghouse
community | non-profit organizations
-
governmental | military
-
Precast Reinforced Concrete
miscellaneous | unclassified
-
Partially Restricted Coverage
community | sports
-
Privacy Rights Clearinghouse's
miscellaneous | unclassified
-
Professional Research Consultants
academic & science | research
-
Prevention Research Center
academic & science | research
-
Preservation Resource Center
miscellaneous | unclassified
-
miscellaneous | unclassified
-
Product Representation Compact
miscellaneous | unclassified
-
Player Resource Consortium
community | sports
-
Pacific Region Conference
governmental | united nations
-
Professional Researcher Certification
academic & science | academic degrees
-
People's Republic Of Cambridge
governmental | state & local
-
Peoples Republic Of Colorado
miscellaneous | funnies
-
Photographic Resource Center
miscellaneous | unclassified
-
miscellaneous | unclassified
-
Professional Referral Committee
academic & science | universities
-
Prevention Retention Contingency
governmental | military
-
Psychiatric Rehabilitation Coordinator
business | occupation & positions
-
Pennsylvania Resources Council's
miscellaneous | unclassified
-
computing | networking
-
Progressive Republic Of China
miscellaneous | funnies
-
Photometry, Radiometry, And Calorimetry
academic & science | physics
-
Peoples Republic Of China
miscellaneous | unclassified
-
People's Republic Of China Satellite
governmental | nasa
-
Parkinson's Research Center
community | non-profit organizations
-
community
-
business | general
-
Rational Rose Processes File
computing | file extensions
-
governmental | transportation
-
governmental | police
-
Physical Rehabilitation Centre
medical | rehabilitation
-
Producers Releasing Corporation
community | music
-
computing | networking
-
Project Reviewer Compressed
computing | software
-
Protocol Review Committee
governmental | us government
-
Pressure Regulator Control
academic & science | physics
-
Performance Review Commission
miscellaneous | unclassified
-
Prevention, Retention, And Contingency
community | law & legal
-
miscellaneous | unclassified
-
Planning Research Corporation
governmental | nasa