That depends on your location and telephone provider. There is no "one size fits all" answer.
UK telephone area code 0161 is Manchester, but 0161 553 is an invalid number block.
Ask your local phone company.
Telemarketers can use their PBX (switchboard) to block their actual number; they often substitute 999 as their phony area code. There is NO real 999 area code anywhere in the US (nor is there a country code 999 anywhere on Earth).
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u would have to *67 it in front of the number. and take out the area code
That depends on your wireless carrier (cellphone company) or your local telephone company (for a landline phone).
In computer programming, a block or code block is a lexical structure of source code which is grouped together. In Java it is sed in the same way: to group code and separate it from the rest.
That may depend on your telephone company and/or on the specific make and model of mobile phone you are using.
The airport code for Block Island State Airport is BID.
The area code "258" is currently an unassigned area code. The closest area code to area code "258", is area code "260", which is assigned to the state of Indiana.
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The area code (832) is for the state of Texas. Within that area code there are 44 cities. You cannot determine a zip code by area code.