In addition to the the Yankee Network, Shepard also operated a second network, the Colonial Network, out of WAAB 1410 in Boston. The Colonial Network carried Mutual programming, and shared a number of affiliates with the Yankee Network. In 1936, the following stations were Colonial affiliates (stations shown in bold were also Yankee affiliates):
WRDO Augusta WLBZ Bangor WAAB Boston WICC Bridgeport WSAR Fall River WTHT Hartford WLNH Laconia WLLH Lowell and Lawrence WFEA Manchester WNBH New Bedford WNLC New London WEAN Providence WSPR Springfield WBRY Waterbury