Table 34 Interstate Subscriber Line Charges by Local Telephone Companies (Dollars per Month per Line, Charged to End Users) * Rates in Effect Residential and Embedded From To Single-Line Multiline Centrex Business ** Business *** Rate Cap **** 05/26/84 05/31/85 $0.00 $4.99 $2.00 06/01/85 09/30/85 1.00 4.99 2.00 10/01/85 05/31/86 1.00 4.97 2.00 06/01/86 12/31/86 2.00 4.97 3.00 01/01/87 06/30/87 2.00 5.12 3.00 07/01/87 12/31/87 2.60 5.12 4.00 01/01/88 11/30/88 2.60 5.01 4.00 12/01/88 03/31/89 3.20 5.01 5.00 04/01/89 12/31/89 3.50 4.94 6.00 01/01/90 06/30/90 3.48 4.84 6.00 07/01/90 12/31/90 3.48 4.83 6.00 01/01/91 06/30/91 3.48 4.77 6.00 07/01/91 11/27/91 3.49 4.74 6.00 11/28/91 06/30/92 3.49 4.76 6.00 07/01/92 06/30/93 3.49 4.68 6.00 07/01/93 06/30/94 3.50 5.37 6.00 07/01/94 06/30/95 3.50 5.45 6.00 07/01/95 06/30/96 3.50 5.50 6.00 07/01/96 06/30/97 3.50 5.53 6.00 * These rates are the average of price cap and NECA pool companies. Interstate revenues of these companies comprise approximately 95% of the industry total. The industry rates in this table are the weighted averages of the carriers. The weights are the common line minutes. Rates for the current period are those filed to be effective July 1, 1996. ** The rate charged to residential and single-line business customers is capped at a level of $3.50. Carriers are not permitted to charge the full amount unless justified by the underlying costs. *** The rate charged to multiline business customers is capped at a level of $6.00. Carriers are not permitted to charge the full amount unless justified by the underlying costs. As a result, some companies charge less than the full $6.00. **** This is the maximum rate applied to centrex lines that were in place or on order as of July 27, 1983. Prior to April 1, 1989, these embedded centrex lines had a lower rate cap than new centrex lines. Customers with new centrex lines paid the multiline business subscriber line charge. Since April 1, 1989, however, the caps on centrex and multiline business charges have been at the same level.