Hotel Pennsylvania The hotel has the distinction of having the New York phone number in longest continuous use. The number, Pennsylvania 6-5000 (212-736-5000), is the inspiration for the Jerry Gray composition of the same name (with lyrics later added by Carl Sigman). The most popular version was performed by Glenn Miller, with the Andrews Sisters' version not far behind. The Cafe Rouge was originally the main restaurant in the Hotel Pennsylvania. It served as a nightclub for many years, but now operates as a separate venue from the hotel entirely, as a multi-purpose space. It is the only space in the hotel
Telephone number mapping Telephone number mapping Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces. Internationally, telephone numbers are systematically organized by the E.164 standard, while the Internet uses the Domain Name System (DNS) for linking domain names to IP addresses and other resource information. Telephone number mapping systems provide facilities to determine applicable Internet communications servers responsible for servicing a given telephone number using DNS queries. The most prominent facility for telephone number mapping is the E.164 Number to URI Mapping (ENUM) standard. It