National Exchange Carrier Association Tariff FCC No. 4
NECA Tariff FCC No.4 is an SPs legal billing authority for interstate access service charges. Tariff No.4 is the database that SPs reference for interconnection information that supports the ordering, billing and provisioning of interstate access services in North America. Tariff No.4 also contains information that describes the location and technical capabilities of the SPs wire centers which provide interstate access.