STD

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STD

STD

On drawings, abbr. for standard.

STD

(1)

STD

(2)
Internet standard.

A subseries of Request For Comments (RFC) that specify Internet standards. The official list of Internet standards is STD 1.

See also For Your Information.

rfc.net.

STD

(Subscriber Trunk Dialing) Long distance dialing outside of the U.S. that does not require operator intervention. STD prefix codes are required and billing is based on call units, which are a fixed amount of money in the currency of that country. For example, one call unit may be charged for establishing the call, and each call unit pays for some amount of time depending on the distance between parties.
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