Local Calling Area Rating Glossary

EAA

Exchange Area Address. The NPANXX location of a service number maintained by CCMI.

RLR

Rate Line Reference. A number associated with a Call Plan to determine the rate local calls are charged.

RCF

Rate Center File. A file maintained by CCMI for Local Calling Area rating.

RLRN

Rate Line Reference Number. Same as RLR.

CP

Call Plan. Rate plans that are maintained by CCMI for Local Calling Area rating.

OCN

Operating Company Number. The four-digit number for an ILEC.

ILEC

Incumbent Local Exchange Carrier. The local telephone company that supplies local access, often the local Regional Bell Operating Company.