All available North American Numbering Plan Administration prefixes for 938 September 16, 2014 Tim 938-205 938-211 938-223 938-238 938-251 938-256 938-311 938-334 938-411 938-511 938-555 938-611 938-700 938-711 938-811 938-911 938-938 938-950 938-958 938-959 938-976