Garden Valley Technologies (OCN 1395) has expanded local calling from its exchanges to Crookston and Warren MN, effective 2021-07-01
Company-wide local calling for subscribers of West Central Telephone Association (OCN 1501)
Local calling among the following rate centres in Québec: Frampton, Saint-Bernard-de-Dorchester, Saint-Henri-de-Lévis, Saint-Lambert-de-Lauzon, Sainte-Hénédine, Sainte-Marie, Vallée-Jonction, effective 2019-11-05
Dixville Telephone Company, serving Dixville Notch NH, has discontinued operations since it no longer has any customers. 603-255 will be returned effective 2019-08-31.
Source: NH PUC
Garden Valley Telephone (MN) has company-wide local calling effective 2019-07-01
Brighton CO consolidated with Denver CO. Brighton previously had local calling with Roggen; as of 2018-06-20, so does the rest of the Denver rate centre.
Added calling information for Copper Valley Telephone Cooperative (OCN 3006)