The Boston Red Sox Radio Network is an American radio network composed of 54 radio stations which carry English language coverage of the Boston Red Sox, a professional baseball team in Major League Baseball (MLB). Lawrence, Massachusetts station WEEI-FM (93.7 FM), which serves Boston and the Greater Boston area, serves as the network's Flagship. The network also includes 49 affiliates in the U.S. states of Massachusetts, Maine, Connecticut, Rhode Island, Vermont, New Hampshire, New York, and Florida: 28 AM stations, 24 of which supplement their signals with one or more FM translators; and 21 full-power FM stations, one of which supplements its signal with several FM translators. Joe Castiglione currently serves as the network's play-by-play announcer; since the start of the 2020 Red Sox season, (Will Flemming, Sean McDonough, Jon Sciambi, Dave O'Brien, Dale Arnold and Tom Caron have alternated with Castiglione providing color commentary. In addition to traditional over-the-air AM and FM broadcasts, network programming airs on SiriusXM satellite radio; and streams online via SiriusXM Internet Radio, TuneIn Premium, and MLB.com Gameday Audio. Shaw's and Star Market Supermarkets, a grocery store chain which serves much of New England, holds naming rights to the "WEEI Shaw's and Star Market Red Sox Radio Network," rebranded in 2022 as the "WEEI Shaw's and Star Market Red Sox Network." Programming Play-by-play announcer Joe Castiglione, in addition to a rotation of co-hosts (Will Flemming, Sean McDonough, Jon Sciambi, Dave O'Brien, Dale Arnold or Tom Caron as the second play-by-play announcer, with Lou Merloni or Rob Bradford as color commentators for select games), calls games on-site. WEEI-FM personality Mike Mutnansky serves as pre- and post-game host. All regular season and many spring training games are broadcast. Station list Blue background indicates FM translator. Network maps Additional affiliates 1400 WHTB: Fall River (if there is a conflict on WSAR) 1240 WOON: Woonsocket (if there is a conflict on WVEI-FM) Spanish Beisbol Network In addition to the English-language network, the Boston Red Sox Spanish Beisbol Network is a one-station network carrying Spanish-language coverage of the Red Sox. Haverhill station WCCM (1490 AM) serves as the network's flagship; WCCM also simulcasts over an FM translator. Nilson Pepen currently serves as this network's play-by-play announcer. Blue background indicates FM translator. History Former announcers Former flagships 680 WRKO: Boston (1989-1994, (with WROR, 1989–90); 2007-August 25, 2009 (co-flagship with WEEI)) 850 WHDH: Boston (1946-1975) 850 WEEI: Boston (1995-2012; weekday afternoon and