Home > Term: In Service
In Service
A code or block for which local routing information has been input to the LERG Routing Guide and the carrier has begun to activate and assign numbers within the NXX code or NXX-X block to end users (FCC 00-104, ¶240. )
- Part of Speech: noun
- Industry/Domain: Telecommunications
- Category: General telecom
- Company: ATIS
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Creator
- KeithC3
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