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Numbering
Information about the central database for US toll free number management.
Date Added: Dec 5, 2010 Hits: Rating: 0.00 Votes: 0
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This site contains information about the 800
Service Management System (SMS/800) which is the central administration
system for the management of Toll Free Services. For more
information regarding the SMS/800 system and the services
available using the system, please see About SMS/800.
What
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The historical relationship between North American telephone exchange names and numbers.
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Telephone numbers used to begin with two letters, which were an abbreviation for a word. For example, there was a Glenn Miller song called PEnnsylvania 6-5000, and Liz Taylor made a movie called BUtterfield-8. I'm just barely old
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A collection of all international numbering plans in the world. Some features require a paid subscription.
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International Numbering Plans provides a variety of tools in the field of telecommunication for businesses, law enforcement agenncies, governmental organisations or regular users. The services are centered around (mobile) numbering plans, billing databases, (reverse) search engines, investigative tools, and general worldwide country information regarding telecommunications, such as area codes lists and dialling instructions.
Welcome at International Numbering Plans! International Numbering Plans is specialised in world-wide (tele)communications related numbering plans, and offers a range of on-line services for a variety of market segments in the global telecommunications sector. Most on-line services are free of
Welcome at International Numbering Plans! International Numbering Plans is specialised in world-wide (tele)communications related numbering plans, and offers a range of on-line services for a variety of market segments in the global telecommunications sector. Most on-line services are free of
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