npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
410-658 | MD | ARMSTRONG TEL. CO. OF MARYLAND | 0216 | RISING SUN | RSSNMDXRDS0 | 00/00/0000 | Prefix Type: ICO Switch Name: RISING SUN Switch Type: Stromberg Carlson DCO Digital LATA: Baltimore MD (238) Tandem: N/A Detailed Switch Info |