This is one instance where I am inserting ARTCC data
They use FREQ and FREQS SERVICE and SVC, PROVIDED and PRVDD...
Sample data
Line 19945: TWR6AIG 1 APCH/DEP SERVICE PROVIDED BY MINNEAPOLIS ARTCC ON FREQS 124.4/317.7 (MOSINEE RCAG).
Line 19958: TWR6ASX 1 APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 126.45/276.4(HAYWARD RCAG).
Line 19961: TWR6DLL 1 APCH/DEP SERVICE PROVIDED BY CHICAGO ARTCC ON FREQS 133.3/380.35 (LONE ROCK RCAG) WHEN MADISON APCH CTL CLSD.
Line 19966: TWR6BCK 1 APCH/DEP SERVICE PROVIDED BY MINNEAPOLIS ARTCC ON FREQS 128.6/363.0 (LA CROSSE RCAG).
Line 19972: TWR6OVS 1 APCH/DEP SERVICE PROVIDED BY CHICAGO ARTCC ON FREQS 133.3/380.35 (LONE ROCK RCAG).
Line 19975: TWR63T3 1 APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.3/335.6 (EAU CLAIRE RCAG).
Line 19980: TWR63CU 1 APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 126.45/276.4 (HAYWARD RCAG).
Line 19986: TWR6VOK 1 APCH/DEP SVC PRVDD BY CHICAGO ARTCC ON FREQS 133.3 / 257.92 (VOLK FLD RCAG) WHEN APCH CTL CLSD.
Line 20001: TWR6Y23 1 APCH/DEP SERVICE PROVIDED BY MINNEAPOLIS ARTCC ON FREQS 125.3/335.6 (EAU CLAIRE RCAG).
Line 20007: TWR6Y55 1 APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 133.65/281.5 (RHINELANDER RCAG).
Line 20014: TWR6EGV 1 APCH/DEP SERVICE PROVIDED BY MINNEAPOLIS ARTCC ON FREQS 133.65/281.5 (RHINELANDER RCAG).
Line 20021: TWR6EAU 1 APCH/DEP SERVICE PROVIDED BY MINNEAPOLIS ARTCC ON FREQS 125.3/335.6 (EAU CLAIRE RCAG).
Line 20034: TWR661C 1 APCH/DEP SVC PRVDD BY CHICAGO ARTCC ON FREQS 133.3/380.35 (LONE ROCK RCAG) WHEN MADISON APCH CTL CLSD.
Line 20037: TWR663C 1 APCH/DEP SERVICE PRVDD BY CHICAGO ARTCC ON FREQS 133.3/380.35 (LONE ROCK RCAG) WHEN APCH CTL CLSD.
Line 20040: TWR6GTG 1 APCH/DEP SERVICE PROVIDED BY MINNEAPOLIS ARTCC ON FREQS 121.05/397.9 (PRINCETON RCAG).
String replace up front means I only have to look for one thing on the back site of the equation:
View attachment 52879